From 2f1032517623b70920d99529e5c87c8c680ab8bf Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Mon, 18 Aug 2014 11:56:54 -0500 Subject: [PATCH 001/172] clk: ti: divider: Provide error check for incoming parameters in set_rate Check for valid parameters in check rate. Else, we end up getting errors like: [ 0.000000] Division by zero in kernel. [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.17.0-rc1 #1 [ 0.000000] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 0.000000] [] (show_stack) from [] (dump_stack+0x78/0x94) [ 0.000000] [] (dump_stack) from [] (Ldiv0+0x8/0x10) [ 0.000000] [] (Ldiv0) from [] (ti_clk_divider_set_rate+0x14/0x14c) [ 0.000000] [] (ti_clk_divider_set_rate) from [] (clk_change_rate+0x138/0x180) [ 0.000000] [] (clk_change_rate) from [] (clk_change_rate+0x108/0x180) This occurs as part of the inital clock tree update of child clock nodes where new_rate could be 0 for non functional clocks. Fixes: b4761198bfaf296 ("CLK: ti: add support for ti divider-clock") Signed-off-by: Nishanth Menon Signed-off-by: Tero Kristo --- drivers/clk/ti/divider.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/clk/ti/divider.c b/drivers/clk/ti/divider.c index e6aa10db7bba..a837f703be65 100644 --- a/drivers/clk/ti/divider.c +++ b/drivers/clk/ti/divider.c @@ -211,11 +211,16 @@ static long ti_clk_divider_round_rate(struct clk_hw *hw, unsigned long rate, static int ti_clk_divider_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long parent_rate) { - struct clk_divider *divider = to_clk_divider(hw); + struct clk_divider *divider; unsigned int div, value; unsigned long flags = 0; u32 val; + if (!hw || !rate) + return -EINVAL; + + divider = to_clk_divider(hw); + div = DIV_ROUND_UP(parent_rate, rate); value = _get_val(divider, div); From 20411dad75ece9a613af715df4489e60990c4017 Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Mon, 18 Aug 2014 11:56:55 -0500 Subject: [PATCH 002/172] clk: ti: dra7-atl: Provide error check for incoming parameters in set_rate Check for valid parameters in check rate. Else, we end up getting errors. This occurs as part of the inital clock tree update of child clock nodes where new_rate could be 0 for non functional clocks. Fixes: 9ac33b0ce81fa48 (" CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)") Signed-off-by: Nishanth Menon Signed-off-by: Tero Kristo --- drivers/clk/ti/clk-dra7-atl.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/clk/ti/clk-dra7-atl.c b/drivers/clk/ti/clk-dra7-atl.c index 4a65b410e4d5..af29359677da 100644 --- a/drivers/clk/ti/clk-dra7-atl.c +++ b/drivers/clk/ti/clk-dra7-atl.c @@ -139,9 +139,13 @@ static long atl_clk_round_rate(struct clk_hw *hw, unsigned long rate, static int atl_clk_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long parent_rate) { - struct dra7_atl_desc *cdesc = to_atl_desc(hw); + struct dra7_atl_desc *cdesc; u32 divider; + if (!hw || !rate) + return -EINVAL; + + cdesc = to_atl_desc(hw); divider = ((parent_rate + rate / 2) / rate) - 1; if (divider > DRA7_ATL_DIVIDER_MASK) divider = DRA7_ATL_DIVIDER_MASK; From 9776de96e51565286da25c74d6f631abc50c63ef Mon Sep 17 00:00:00 2001 From: Milosz Tanski Date: Wed, 13 Aug 2014 12:58:16 -0400 Subject: [PATCH 003/172] FS-Cache: Timeout for releasepage() This is meant to avoid a recusive hang caused by underlying filesystem trying to grab a free page and causing a write-out. INFO: task kworker/u30:7:28375 blocked for more than 120 seconds. Not tainted 3.15.0-virtual #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u30:7 D 0000000000000000 0 28375 2 0x00000000 Workqueue: fscache_operation fscache_op_work_func [fscache] ffff88000b147148 0000000000000046 0000000000000000 ffff88000b1471c8 ffff8807aa031820 0000000000014040 ffff88000b147fd8 0000000000014040 ffff880f0c50c860 ffff8807aa031820 ffff88000b147158 ffff88007be59cd0 Call Trace: [] schedule+0x29/0x70 [] __fscache_wait_on_page_write+0x55/0x90 [fscache] [] ? __wake_up_sync+0x20/0x20 [] __fscache_maybe_release_page+0x65/0x1e0 [fscache] [] ceph_releasepage+0x83/0x100 [ceph] [] ? anon_vma_fork+0x130/0x130 [] try_to_release_page+0x32/0x50 [] shrink_page_list+0x7e6/0x9d0 [] ? isolate_lru_pages.isra.73+0x78/0x1e0 [] shrink_inactive_list+0x252/0x4c0 [] shrink_lruvec+0x3e1/0x670 [] shrink_zone+0x3f/0x110 [] do_try_to_free_pages+0x1d6/0x450 [] ? zone_statistics+0x99/0xc0 [] try_to_free_pages+0xc4/0x180 [] __alloc_pages_nodemask+0x6b2/0xa60 [] ? __find_get_block+0xbe/0x250 [] ? wake_up_bit+0x2e/0x40 [] alloc_pages_current+0xb3/0x180 [] __page_cache_alloc+0xb7/0xd0 [] grab_cache_page_write_begin+0x7c/0xe0 [] ? ext4_mark_inode_dirty+0x82/0x220 [] ext4_da_write_begin+0x89/0x2d0 [] generic_perform_write+0xbe/0x1d0 [] ? update_time+0x81/0xc0 [] ? mnt_clone_write+0x12/0x30 [] __generic_file_aio_write+0x1ce/0x3f0 [] generic_file_aio_write+0x5e/0xe0 [] ext4_file_write+0x9f/0x410 [] ? ext4_file_open+0x66/0x180 [] do_sync_write+0x5a/0x90 [] cachefiles_write_page+0x149/0x430 [cachefiles] [] ? radix_tree_gang_lookup_tag+0x89/0xd0 [] fscache_write_op+0x222/0x3b0 [fscache] [] fscache_op_work_func+0x3a/0x100 [fscache] [] process_one_work+0x179/0x4a0 [] worker_thread+0x11b/0x370 [] ? manage_workers.isra.21+0x2e0/0x2e0 [] kthread+0xc9/0xe0 [] ? ftrace_raw_event_xen_mmu_release_ptpage+0x70/0x90 [] ? flush_kthread_worker+0xb0/0xb0 [] ret_from_fork+0x7c/0xb0 [] ? flush_kthread_worker+0xb0/0xb0 Signed-off-by: Milosz Tanski Signed-off-by: David Howells --- fs/fscache/page.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/fs/fscache/page.c b/fs/fscache/page.c index 85332b9d19d1..781ac7b0b53e 100644 --- a/fs/fscache/page.c +++ b/fs/fscache/page.c @@ -43,6 +43,19 @@ void __fscache_wait_on_page_write(struct fscache_cookie *cookie, struct page *pa } EXPORT_SYMBOL(__fscache_wait_on_page_write); +/* + * wait for a page to finish being written to the cache. Put a timeout here + * since we might be called recursively via parent fs. + */ +static +bool release_page_wait_timeout(struct fscache_cookie *cookie, struct page *page) +{ + wait_queue_head_t *wq = bit_waitqueue(&cookie->flags, 0); + + return wait_event_timeout(*wq, !__fscache_check_page_write(cookie, page), + HZ); +} + /* * decide whether a page can be released, possibly by cancelling a store to it * - we're allowed to sleep if __GFP_WAIT is flagged @@ -115,7 +128,10 @@ bool __fscache_maybe_release_page(struct fscache_cookie *cookie, } fscache_stat(&fscache_n_store_vmscan_wait); - __fscache_wait_on_page_write(cookie, page); + if (!release_page_wait_timeout(cookie, page)) + _debug("fscache writeout timeout page: %p{%lx}", + page, page->index); + gfp &= ~__GFP_WAIT; goto try_again; } From 920bce20d74817bdd8bfcbc28ecb1179c9e01081 Mon Sep 17 00:00:00 2001 From: Milosz Tanski Date: Wed, 13 Aug 2014 12:58:21 -0400 Subject: [PATCH 004/172] FS-Cache: Reduce cookie ref count if submit fails. I've been seeing issues with disposing cookies under vma pressure. The symptom is that the refcount gets out of sync. In this case we fail to decrement the refcount if submit fails. I found this while auditing the error in and around cookie operations. Signed-off-by: Milosz Tanski Signed-off-by: David Howells --- fs/fscache/object.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/fscache/object.c b/fs/fscache/object.c index d3b4539f1651..da032daf0e0d 100644 --- a/fs/fscache/object.c +++ b/fs/fscache/object.c @@ -982,6 +982,7 @@ static const struct fscache_state *_fscache_invalidate_object(struct fscache_obj submit_op_failed: clear_bit(FSCACHE_OBJECT_IS_LIVE, &object->flags); spin_unlock(&cookie->lock); + fscache_unuse_cookie(object); kfree(op); _leave(" [EIO]"); return transit_to(KILL_OBJECT); From 6efaaf33bece53a842cb1cc71971a05216d81473 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Mon, 1 Sep 2014 10:03:21 +0300 Subject: [PATCH 005/172] iwlwifi: mvm: enable scheduled scan on newest firmware Scheduled scan was disabled because of a bug in the firmware. The firmware reported support for this feature, but enabling it led to assertions. The bugs have been fixes in latest firmware versions, so that we can re-enable the feature on latest firmwares only. Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/mac80211.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index 7c8796584c25..c4000a1ea81a 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -396,12 +396,14 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) else hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; - /* TODO: enable that only for firmwares that don't crash */ - /* hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; */ - hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; - hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; - /* we create the 802.11 header and zero length SSID IE. */ - hw->wiphy->max_sched_scan_ie_len = SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; + if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) { + hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; + hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; + hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; + /* we create the 802.11 header and zero length SSID IE. */ + hw->wiphy->max_sched_scan_ie_len = + SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; + } hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | NL80211_FEATURE_LOW_PRIORITY_SCAN | From e8531ac8b21a3e89db8729d2cd9de43b09818092 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 2 Sep 2014 17:27:51 +0200 Subject: [PATCH 006/172] clk: at91: fix num_parents test in at91sam9260 slow clk implementation The slow clk block provided by at91sam9260 and derived SoCs should always have 2 parents. Signed-off-by: Boris BREZILLON Signed-off-by: Mike Turquette --- drivers/clk/at91/clk-slow.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/at91/clk-slow.c b/drivers/clk/at91/clk-slow.c index 0300c46ee247..32f7c1b36204 100644 --- a/drivers/clk/at91/clk-slow.c +++ b/drivers/clk/at91/clk-slow.c @@ -447,7 +447,7 @@ void __init of_at91sam9260_clk_slow_setup(struct device_node *np, int i; num_parents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); - if (num_parents <= 0 || num_parents > 1) + if (num_parents != 2) return; for (i = 0; i < num_parents; ++i) { From d8210e28e5807091f38d064142223e8787cc9883 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 29 Aug 2014 12:49:26 -0700 Subject: [PATCH 007/172] clk: qcom: Fix sdc 144kHz frequency entry The pre-divider for the sdc clocks only has 2 bits in it, so we can't possibly divide by anything larger than 4 here. Furthermore, we program the value of ~(n - m) and the n value is larger than 8 bits (max of 256). Replace this entry with 200kHz which is close enough to 144kHz to be usable. Cc: Kumar Gala Cc: Andy Gross Fixes: 24d8fba44af3 "clk: qcom: Add support for IPQ8064's global clock controller (GCC)" Signed-off-by: Stephen Boyd Signed-off-by: Mike Turquette --- drivers/clk/qcom/gcc-ipq806x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/qcom/gcc-ipq806x.c b/drivers/clk/qcom/gcc-ipq806x.c index 4032e510d9aa..3b83b7dd78c7 100644 --- a/drivers/clk/qcom/gcc-ipq806x.c +++ b/drivers/clk/qcom/gcc-ipq806x.c @@ -1095,7 +1095,7 @@ static struct clk_branch prng_clk = { }; static const struct freq_tbl clk_tbl_sdc[] = { - { 144000, P_PXO, 5, 18,625 }, + { 200000, P_PXO, 2, 2, 125 }, { 400000, P_PLL8, 4, 1, 240 }, { 16000000, P_PLL8, 4, 1, 6 }, { 17070000, P_PLL8, 1, 2, 45 }, From bd8c78e78d5011d8111bc2533ee73b13a3bd6c42 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 30 Jul 2014 14:55:26 +0200 Subject: [PATCH 008/172] nl80211: clear skb cb before passing to netlink In testmode and vendor command reply/event SKBs we use the skb cb data to store nl80211 parameters between allocation and sending. This causes the code for CONFIG_NETLINK_MMAP to get confused, because it takes ownership of the skb cb data when the SKB is handed off to netlink, and it doesn't explicitly clear it. Clear the skb cb explicitly when we're done and before it gets passed to netlink to avoid this issue. Cc: stable@vger.kernel.org [this goes way back] Reported-by: Assaf Azulay Reported-by: David Spinadel Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index df7b1332a1ec..7257164af91b 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -6969,6 +6969,9 @@ void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp) struct nlattr *data = ((void **)skb->cb)[2]; enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE; + /* clear CB data for netlink core to own from now on */ + memset(skb->cb, 0, sizeof(skb->cb)); + nla_nest_end(skb, data); genlmsg_end(skb, hdr); @@ -9294,6 +9297,9 @@ int cfg80211_vendor_cmd_reply(struct sk_buff *skb) void *hdr = ((void **)skb->cb)[1]; struct nlattr *data = ((void **)skb->cb)[2]; + /* clear CB data for netlink core to own from now on */ + memset(skb->cb, 0, sizeof(skb->cb)); + if (WARN_ON(!rdev->cur_cmd_info)) { kfree_skb(skb); return -EINVAL; From f4ee3c8446d55ef426965abccbbc195e0f157e73 Mon Sep 17 00:00:00 2001 From: Doug Anderson Date: Fri, 22 Aug 2014 09:49:29 -0700 Subject: [PATCH 009/172] clk: rockchip: Fix the clocks for i2c1 and i2c2 The clocks for i2c1 and i2c2 are flipped. The clock tree matched the Technical Reference Manual (TRM) but the TRM was wrong. Swap them in the clock tree. This was determined experimentally (by Addy) and confirmed by the Rockchip IC team. Signed-off-by: Doug Anderson Reported-by: Addy Ke Reviewed-by: Heiko Stuebner Signed-off-by: Mike Turquette --- drivers/clk/rockchip/clk-rk3288.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 0d8c6c59a75e..b22a2d2f21e9 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -545,7 +545,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(PCLK_PWM, "pclk_pwm", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 0, GFLAGS), GATE(PCLK_TIMER, "pclk_timer", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 1, GFLAGS), GATE(PCLK_I2C0, "pclk_i2c0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 2, GFLAGS), - GATE(PCLK_I2C1, "pclk_i2c1", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 3, GFLAGS), + GATE(PCLK_I2C2, "pclk_i2c2", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 3, GFLAGS), GATE(0, "pclk_ddrupctl0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 14, GFLAGS), GATE(0, "pclk_publ0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 15, GFLAGS), GATE(0, "pclk_ddrupctl1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 0, GFLAGS), @@ -603,7 +603,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(PCLK_I2C4, "pclk_i2c4", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 15, GFLAGS), GATE(PCLK_UART3, "pclk_uart3", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 11, GFLAGS), GATE(PCLK_UART4, "pclk_uart4", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 12, GFLAGS), - GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 13, GFLAGS), + GATE(PCLK_I2C1, "pclk_i2c1", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 13, GFLAGS), GATE(PCLK_I2C3, "pclk_i2c3", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 14, GFLAGS), GATE(PCLK_SARADC, "pclk_saradc", "pclk_peri", 0, RK3288_CLKGATE_CON(7), 1, GFLAGS), GATE(PCLK_TSADC, "pclk_tsadc", "pclk_peri", 0, RK3288_CLKGATE_CON(7), 2, GFLAGS), From 067bb1741c27c8d3b74ac98c0b8fc12b31e67005 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Thu, 21 Aug 2014 16:47:45 +0300 Subject: [PATCH 010/172] clk: prevent erronous parsing of children during rate change In some cases, clocks can switch their parent with clk_set_rate, for example clk_mux can do this in some cases. Current implementation of clk_change_rate uses un-safe list iteration on the clock children, which will cause wrong clocks to be parsed in case any of the clock children change their parents during the change rate operation. Fixed by using the safe list iterator instead. The problem was detected due to some divide by zero errors generated by clock init on dra7-evm board, see discussion under http://article.gmane.org/gmane.linux.ports.arm.kernel/349180 for details. Fixes: 71472c0c06cf ("clk: add support for clock reparent on set_rate") Signed-off-by: Tero Kristo Reported-by: Nishanth Menon Signed-off-by: Mike Turquette --- drivers/clk/clk.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index b76fa69b44cb..bacc06ff939b 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1467,6 +1467,7 @@ static struct clk *clk_propagate_rate_change(struct clk *clk, unsigned long even static void clk_change_rate(struct clk *clk) { struct clk *child; + struct hlist_node *tmp; unsigned long old_rate; unsigned long best_parent_rate = 0; bool skip_set_rate = false; @@ -1502,7 +1503,11 @@ static void clk_change_rate(struct clk *clk) if (clk->notifier_count && old_rate != clk->rate) __clk_notify(clk, POST_RATE_CHANGE, old_rate, clk->rate); - hlist_for_each_entry(child, &clk->children, child_node) { + /* + * Use safe iteration, as change_rate can actually swap parents + * for certain clock types. + */ + hlist_for_each_entry_safe(child, tmp, &clk->children, child_node) { /* Skip children who will be reparented to another clock */ if (child->new_parent && child->new_parent != clk) continue; From 785e21a89d77923852869f83ebd2689ec4d5ce54 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Wed, 3 Sep 2014 15:25:04 +0300 Subject: [PATCH 011/172] mac80211: use bss_conf->dtim_period instead of conf.ps_dtim_period sta_set_sinfo is obviously takes data for specific station. This specific station is attached to a specific virtual interface. Hence we should use the dtim_period from this virtual interface rather than the system wide dtim_period. Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg --- net/mac80211/sta_info.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 441875f03750..a1e433b88c66 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -1822,7 +1822,7 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; if (sdata->vif.bss_conf.use_short_slot) sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; - sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period; + sinfo->bss_param.dtim_period = sdata->vif.bss_conf.dtim_period; sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int; sinfo->sta_flags.set = 0; From 787d6c1f17eae41429d35eb0f1b38f44659f5f1d Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 25 Jul 2014 14:49:59 +0200 Subject: [PATCH 012/172] iwlwifi: mvm: BT Coex - remove shadowing variable The variable 'u32 mode' exists twice, the latter shadowing the former - remove the latter since there's no need for two variables. Signed-off-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/coex.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c index 2291bbcaaeab..75178f35f042 100644 --- a/drivers/net/wireless/iwlwifi/mvm/coex.c +++ b/drivers/net/wireless/iwlwifi/mvm/coex.c @@ -585,8 +585,6 @@ int iwl_send_bt_init_conf(struct iwl_mvm *mvm) lockdep_assert_held(&mvm->mutex); if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) { - u32 mode; - switch (mvm->bt_force_ant_mode) { case BT_FORCE_ANT_BT: mode = BT_COEX_BT; From 7c8b3bc688bdcfd7789efbd17da4d85b104ad351 Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Wed, 30 Jul 2014 15:04:08 +0300 Subject: [PATCH 013/172] iwlwifi: mvm: set MAC_FILTER_IN_BEACON correctly for STA/P2P client In commit cad3f08c (iwlwifi: mvm: enable MAC_FILTER_IN_BEACON when forced_assoc_off is set) the code to set the MAC_FILTER_IN_BEACON flag was accidentally moved to the main block of the if statement, while it should be in the else block instead. Move it to the right place. Fixes: cad3f08c23de ("iwlwifi: mvm: enable MAC_FILTER_IN_BEACON when forced_assoc_off is set") Reviewed-by: Johannes Berg Signed-off-by: Luciano Coelho Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c index 0e523e28cabf..8242e689ddb1 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c @@ -721,11 +721,6 @@ static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, !force_assoc_off) { u32 dtim_offs; - /* Allow beacons to pass through as long as we are not - * associated, or we do not have dtim period information. - */ - cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); - /* * The DTIM count counts down, so when it is N that means N * more beacon intervals happen until the DTIM TBTT. Therefore @@ -759,6 +754,11 @@ static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, ctxt_sta->is_assoc = cpu_to_le32(1); } else { ctxt_sta->is_assoc = cpu_to_le32(0); + + /* Allow beacons to pass through as long as we are not + * associated, or we do not have dtim period information. + */ + cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); } ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int); From 86974bff066dd8b98be46d7c7d3aba89034f0833 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Thu, 31 Jul 2014 14:32:37 +0300 Subject: [PATCH 014/172] iwlwifi: mvm: fix endianity issues with Smart Fifo commands This code was broken on big endian systems. Sparse didn't catch the bug since the firmware command was not tagged as little endian. Fix the bug for big endian systems and tag the field in the firmware command to prevent such issues in the future. Cc: stable@vger.kernel.org [3.14+] Fixes: 1f3b0ff8ec ("iwlwifi: mvm: Add Smart FIFO support") Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/fw-api.h | 4 ++-- drivers/net/wireless/iwlwifi/mvm/sf.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h index 95f5b3274efb..9a922f3bd16b 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h @@ -1563,14 +1563,14 @@ enum iwl_sf_scenario { /** * Smart Fifo configuration command. - * @state: smart fifo state, types listed in iwl_sf_sate. + * @state: smart fifo state, types listed in enum %iwl_sf_sate. * @watermark: Minimum allowed availabe free space in RXF for transient state. * @long_delay_timeouts: aging and idle timer values for each scenario * in long delay state. * @full_on_timeouts: timer values for each scenario in full on state. */ struct iwl_sf_cfg_cmd { - enum iwl_sf_state state; + __le32 state; __le32 watermark[SF_TRANSIENT_STATES_NUMBER]; __le32 long_delay_timeouts[SF_NUM_SCENARIO][SF_NUM_TIMEOUT_TYPES]; __le32 full_on_timeouts[SF_NUM_SCENARIO][SF_NUM_TIMEOUT_TYPES]; diff --git a/drivers/net/wireless/iwlwifi/mvm/sf.c b/drivers/net/wireless/iwlwifi/mvm/sf.c index 7edfd15efc9d..e843b67f2201 100644 --- a/drivers/net/wireless/iwlwifi/mvm/sf.c +++ b/drivers/net/wireless/iwlwifi/mvm/sf.c @@ -172,7 +172,7 @@ static int iwl_mvm_sf_config(struct iwl_mvm *mvm, u8 sta_id, enum iwl_sf_state new_state) { struct iwl_sf_cfg_cmd sf_cmd = { - .state = new_state, + .state = cpu_to_le32(new_state), }; struct ieee80211_sta *sta; int ret = 0; From 22d059a5c7c5de61e53c88e30b65e55fbfd91e91 Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Tue, 26 Aug 2014 11:23:11 +0300 Subject: [PATCH 015/172] iwlwifi: increase DEFAULT_MAX_TX_POWER The chip is able to transmit up to 22dBm, so set the constant appropriately. CC: [3.13+] Signed-off-by: Eliad Peller Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/iwl-config.h | 2 ++ drivers/net/wireless/iwlwifi/iwl-nvm-parse.c | 4 +--- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h index 8da596db9abe..942c99bc403d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-config.h +++ b/drivers/net/wireless/iwlwifi/iwl-config.h @@ -120,6 +120,8 @@ enum iwl_led_mode { #define IWL_LONG_WD_TIMEOUT 10000 #define IWL_MAX_WD_TIMEOUT 120000 +#define IWL_DEFAULT_MAX_TX_POWER 22 + /* Antenna presence definitions */ #define ANT_NONE 0x0 #define ANT_A BIT(0) diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c index 018af2957d3b..354255f08754 100644 --- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c +++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c @@ -146,8 +146,6 @@ static const u8 iwl_nvm_channels_family_8000[] = { #define LAST_2GHZ_HT_PLUS 9 #define LAST_5GHZ_HT 161 -#define DEFAULT_MAX_TX_POWER 16 - /* rate data (static) */ static struct ieee80211_rate iwl_cfg80211_rates[] = { { .bitrate = 1 * 10, .hw_value = 0, .hw_value_short = 0, }, @@ -295,7 +293,7 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg, * Default value - highest tx power value. max_power * is not used in mvm, and is used for backwards compatibility */ - channel->max_power = DEFAULT_MAX_TX_POWER; + channel->max_power = IWL_DEFAULT_MAX_TX_POWER; is_5ghz = channel->band == IEEE80211_BAND_5GHZ; IWL_DEBUG_EEPROM(dev, "Ch. %d [%sGHz] %s%s%s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n", From 1bc10d3b509cf9f55a516c1e6dd0716f5e8fefd7 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 26 Aug 2014 14:25:46 +0200 Subject: [PATCH 016/172] iwlwifi: mvm: correctly handle PM/QoS changes from mac80211 When mac80211 requests multiple BSS config changes, as for example while associating, we ignore power management and QoS changes and only apply them later. Fix that by removing the "else" and making the conditions independent. Also move it after (potential) beacon filter enablement to have that already enabled when going into power management code. Signed-off-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/mac80211.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index c4000a1ea81a..cdc272d776e7 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -1526,11 +1526,6 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, */ iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); - } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | - BSS_CHANGED_QOS)) { - ret = iwl_mvm_power_update_mac(mvm); - if (ret) - IWL_ERR(mvm, "failed to update power mode\n"); } if (changes & BSS_CHANGED_BEACON_INFO) { @@ -1538,6 +1533,12 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); } + if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) { + ret = iwl_mvm_power_update_mac(mvm); + if (ret) + IWL_ERR(mvm, "failed to update power mode\n"); + } + if (changes & BSS_CHANGED_TXPOWER) { IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", bss_conf->txpower); From aa11bbf3df026d6b1c6b528bef634fd9de7c2619 Mon Sep 17 00:00:00 2001 From: Eyal Shapira Date: Tue, 2 Sep 2014 18:39:21 +0300 Subject: [PATCH 017/172] iwlwifi: mvm: treat EAPOLs like mgmt frames wrt rate Using the LQ table which is initially set according to the rssi could lead to EAPOLs being sent in high legacy rates like 54mbps. It's better to avoid sending EAPOLs in high rates as it reduces the chances of a successful 4-Way handshake. Avoid this and treat them like other mgmt frames which would initially get sent at the basic rate. Cc: [3.13+] Signed-off-by: Eyal Shapira Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/tx.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c index dbc870713882..9ee410bf6da2 100644 --- a/drivers/net/wireless/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/iwlwifi/mvm/tx.c @@ -168,10 +168,14 @@ static void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, /* * for data packets, rate info comes from the table inside the fw. This - * table is controlled by LINK_QUALITY commands + * table is controlled by LINK_QUALITY commands. Exclude ctrl port + * frames like EAPOLs which should be treated as mgmt frames. This + * avoids them being sent initially in high rates which increases the + * chances for completion of the 4-Way handshake. */ - if (ieee80211_is_data(fc) && sta) { + if (ieee80211_is_data(fc) && sta && + !(info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO)) { tx_cmd->initial_rate_index = 0; tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE); return; From 717e2390dc72e87380d6ccf62134b0ab84ee43d2 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Thu, 31 Jul 2014 14:39:40 +0300 Subject: [PATCH 018/172] iwlwiwi: mvm: use bss_conf->dtim_period instead of conf.ps_dtim_period The latter is meant for software implementation of power save and is not per-virtual interface. Since our driver supports multiple virtual interfaces, we need to use vif->bss_conf.dtim_period. Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c | 3 +-- drivers/net/wireless/iwlwifi/mvm/power.c | 5 ++--- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c index 2e90ff795c13..87e517bffedc 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c @@ -74,8 +74,7 @@ static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm, switch (param) { case MVM_DEBUGFS_PM_KEEP_ALIVE: { - struct ieee80211_hw *hw = mvm->hw; - int dtimper = hw->conf.ps_dtim_period ?: 1; + int dtimper = vif->bss_conf.dtim_period ?: 1; int dtimper_msec = dtimper * vif->bss_conf.beacon_int; IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val); diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c index 2b2d10800a55..d9769a23c68b 100644 --- a/drivers/net/wireless/iwlwifi/mvm/power.c +++ b/drivers/net/wireless/iwlwifi/mvm/power.c @@ -281,7 +281,6 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_mac_power_cmd *cmd) { - struct ieee80211_hw *hw = mvm->hw; struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_channel *chan; int dtimper, dtimper_msec; @@ -292,7 +291,7 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)); - dtimper = hw->conf.ps_dtim_period ?: 1; + dtimper = vif->bss_conf.dtim_period; /* * Regardless of power management state the driver must set @@ -885,7 +884,7 @@ int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm, iwl_mvm_power_build_cmd(mvm, vif, &cmd); if (enable) { /* configure skip over dtim up to 300 msec */ - int dtimper = mvm->hw->conf.ps_dtim_period ?: 1; + int dtimper = vif->bss_conf.dtim_period ?: 1; int dtimper_msec = dtimper * vif->bss_conf.beacon_int; if (WARN_ON(!dtimper_msec)) From 582de30afa13dbc20c8b654ac8f93d32dbef99ce Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 21 Aug 2014 19:08:44 +0200 Subject: [PATCH 019/172] iwlwifi: mvm: BT Coex - always initialize smps_mode smps_mode is used uninitialized in a debug statement in AP mode, so always initialize it. While at it, fix a typo. Signed-off-by: Johannes Berg Reviewed-by: Luciano Coelho Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/coex.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c index 75178f35f042..ce71625f497f 100644 --- a/drivers/net/wireless/iwlwifi/mvm/coex.c +++ b/drivers/net/wireless/iwlwifi/mvm/coex.c @@ -754,7 +754,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, struct iwl_bt_iterator_data *data = _data; struct iwl_mvm *mvm = data->mvm; struct ieee80211_chanctx_conf *chanctx_conf; - enum ieee80211_smps_mode smps_mode; + /* default smps_mode is AUTOMATIC - only used for client modes */ + enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC; u32 bt_activity_grading; int ave_rssi; @@ -762,8 +763,6 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, switch (vif->type) { case NL80211_IFTYPE_STATION: - /* default smps_mode for BSS / P2P client is AUTOMATIC */ - smps_mode = IEEE80211_SMPS_AUTOMATIC; break; case NL80211_IFTYPE_AP: if (!mvmvif->ap_ibss_active) @@ -795,7 +794,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, else if (bt_activity_grading >= BT_LOW_TRAFFIC) smps_mode = IEEE80211_SMPS_DYNAMIC; - /* relax SMPS contraints for next association */ + /* relax SMPS constraints for next association */ if (!vif->bss_conf.assoc) smps_mode = IEEE80211_SMPS_AUTOMATIC; From f8dfc607b2b460e8e8adfdfb3c5f5bba3a4ad01b Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Sun, 7 Sep 2014 21:33:53 +0300 Subject: [PATCH 020/172] iwlwifi: dvm: disable power save by default In https://bugzilla.kernel.org/show_bug.cgi?id=84031, the submitter said that disabling power saving helped, do just that. Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/dvm/power.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/dvm/power.c b/drivers/net/wireless/iwlwifi/dvm/power.c index 760c45c34ef3..1513dbc79c14 100644 --- a/drivers/net/wireless/iwlwifi/dvm/power.c +++ b/drivers/net/wireless/iwlwifi/dvm/power.c @@ -40,7 +40,7 @@ #include "commands.h" #include "power.h" -static bool force_cam; +static bool force_cam = true; module_param(force_cam, bool, 0644); MODULE_PARM_DESC(force_cam, "force continuously aware mode (no power saving at all)"); From 498abba6a0b2bc7ed0b57772d664a549dcabc4d7 Mon Sep 17 00:00:00 2001 From: Oren Givon Date: Mon, 8 Sep 2014 08:57:05 +0300 Subject: [PATCH 021/172] iwlwifi: add PCI IDs and add then new 3165 series This change does the following: 1) Add a new 7265 series PCI ID 2) Add two new 3160 series PCI IDs 3) Add the new 3165 series PCI IDs and configurations Signed-off-by: Oren Givon Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/iwl-7000.c | 16 ++++++++++++++++ drivers/net/wireless/iwlwifi/iwl-config.h | 1 + drivers/net/wireless/iwlwifi/pcie/drv.c | 7 +++++++ 3 files changed, 24 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c index d67a37a786aa..d53adc245497 100644 --- a/drivers/net/wireless/iwlwifi/iwl-7000.c +++ b/drivers/net/wireless/iwlwifi/iwl-7000.c @@ -83,6 +83,8 @@ #define IWL7260_TX_POWER_VERSION 0xffff /* meaningless */ #define IWL3160_NVM_VERSION 0x709 #define IWL3160_TX_POWER_VERSION 0xffff /* meaningless */ +#define IWL3165_NVM_VERSION 0x709 +#define IWL3165_TX_POWER_VERSION 0xffff /* meaningless */ #define IWL7265_NVM_VERSION 0x0a1d #define IWL7265_TX_POWER_VERSION 0xffff /* meaningless */ @@ -92,6 +94,9 @@ #define IWL3160_FW_PRE "iwlwifi-3160-" #define IWL3160_MODULE_FIRMWARE(api) IWL3160_FW_PRE __stringify(api) ".ucode" +#define IWL3165_FW_PRE "iwlwifi-3165-" +#define IWL3165_MODULE_FIRMWARE(api) IWL3165_FW_PRE __stringify(api) ".ucode" + #define IWL7265_FW_PRE "iwlwifi-7265-" #define IWL7265_MODULE_FIRMWARE(api) IWL7265_FW_PRE __stringify(api) ".ucode" @@ -213,6 +218,16 @@ static const struct iwl_pwr_tx_backoff iwl7265_pwr_tx_backoffs[] = { {0}, }; +const struct iwl_cfg iwl3165_2ac_cfg = { + .name = "Intel(R) Dual Band Wireless AC 3165", + .fw_name_pre = IWL3165_FW_PRE, + IWL_DEVICE_7000, + .ht_params = &iwl7000_ht_params, + .nvm_ver = IWL3165_NVM_VERSION, + .nvm_calib_ver = IWL3165_TX_POWER_VERSION, + .pwr_tx_backoffs = iwl7265_pwr_tx_backoffs, +}; + const struct iwl_cfg iwl7265_2ac_cfg = { .name = "Intel(R) Dual Band Wireless AC 7265", .fw_name_pre = IWL7265_FW_PRE, @@ -245,4 +260,5 @@ const struct iwl_cfg iwl7265_n_cfg = { MODULE_FIRMWARE(IWL7260_MODULE_FIRMWARE(IWL7260_UCODE_API_OK)); MODULE_FIRMWARE(IWL3160_MODULE_FIRMWARE(IWL3160_UCODE_API_OK)); +MODULE_FIRMWARE(IWL3165_MODULE_FIRMWARE(IWL3160_UCODE_API_OK)); MODULE_FIRMWARE(IWL7265_MODULE_FIRMWARE(IWL7260_UCODE_API_OK)); diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h index 942c99bc403d..3d7cc37420ae 100644 --- a/drivers/net/wireless/iwlwifi/iwl-config.h +++ b/drivers/net/wireless/iwlwifi/iwl-config.h @@ -337,6 +337,7 @@ extern const struct iwl_cfg iwl7260_n_cfg; extern const struct iwl_cfg iwl3160_2ac_cfg; extern const struct iwl_cfg iwl3160_2n_cfg; extern const struct iwl_cfg iwl3160_n_cfg; +extern const struct iwl_cfg iwl3165_2ac_cfg; extern const struct iwl_cfg iwl7265_2ac_cfg; extern const struct iwl_cfg iwl7265_2n_cfg; extern const struct iwl_cfg iwl7265_n_cfg; diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c index 98950e45c7b0..8bb8305fc2ce 100644 --- a/drivers/net/wireless/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/iwlwifi/pcie/drv.c @@ -352,11 +352,17 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { {IWL_PCI_DEVICE(0x08B3, 0x8060, iwl3160_2n_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x8062, iwl3160_n_cfg)}, {IWL_PCI_DEVICE(0x08B4, 0x8270, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B4, 0x8370, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B4, 0x8272, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x8470, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x8570, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x1070, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x1170, iwl3160_2ac_cfg)}, +/* 3165 Series */ + {IWL_PCI_DEVICE(0x3165, 0x4010, iwl3165_2ac_cfg)}, + {IWL_PCI_DEVICE(0x3165, 0x4210, iwl3165_2ac_cfg)}, + /* 7265 Series */ {IWL_PCI_DEVICE(0x095A, 0x5010, iwl7265_2ac_cfg)}, {IWL_PCI_DEVICE(0x095A, 0x5110, iwl7265_2ac_cfg)}, @@ -378,6 +384,7 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { {IWL_PCI_DEVICE(0x095B, 0x5202, iwl7265_n_cfg)}, {IWL_PCI_DEVICE(0x095A, 0x9010, iwl7265_2ac_cfg)}, {IWL_PCI_DEVICE(0x095A, 0x9012, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x900A, iwl7265_2ac_cfg)}, {IWL_PCI_DEVICE(0x095A, 0x9110, iwl7265_2ac_cfg)}, {IWL_PCI_DEVICE(0x095A, 0x9112, iwl7265_2ac_cfg)}, {IWL_PCI_DEVICE(0x095A, 0x9210, iwl7265_2ac_cfg)}, From 2cddddc56a1179aa71b460ad616176c237d4a243 Mon Sep 17 00:00:00 2001 From: Eyal Shapira Date: Wed, 13 Aug 2014 00:26:17 +0300 Subject: [PATCH 022/172] iwlwifi: mvm: fix an overflow in iwl_mvm_get_signal_strength The idea here is to translate a value of 0 received from the firmware to the lowest rssi figure. As rx_status->chain_signal is a signed byte the lowest possible value is -128 and not -256. -256 was causing 0 to get stored in the signed byte. Signed-off-by: Eyal Shapira Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/rx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c index 4b98987fc413..bf5cd8c8b0f7 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rx.c +++ b/drivers/net/wireless/iwlwifi/mvm/rx.c @@ -149,13 +149,13 @@ static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm, le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_ENERGY_ANT_ABC_IDX]); energy_a = (val & IWL_RX_INFO_ENERGY_ANT_A_MSK) >> IWL_RX_INFO_ENERGY_ANT_A_POS; - energy_a = energy_a ? -energy_a : -256; + energy_a = energy_a ? -energy_a : S8_MIN; energy_b = (val & IWL_RX_INFO_ENERGY_ANT_B_MSK) >> IWL_RX_INFO_ENERGY_ANT_B_POS; - energy_b = energy_b ? -energy_b : -256; + energy_b = energy_b ? -energy_b : S8_MIN; energy_c = (val & IWL_RX_INFO_ENERGY_ANT_C_MSK) >> IWL_RX_INFO_ENERGY_ANT_C_POS; - energy_c = energy_c ? -energy_c : -256; + energy_c = energy_c ? -energy_c : S8_MIN; max_energy = max(energy_a, energy_b); max_energy = max(max_energy, energy_c); From 78dcff7b73ad1c9052f0b5999f9aaab7648ba2ef Mon Sep 17 00:00:00 2001 From: David L Stevens Date: Mon, 8 Sep 2014 16:23:01 -0400 Subject: [PATCH 023/172] sunvnet - add missing rmb() for sunvnet driver The sunvnet driver does not have an rmb() in the ring consumer corresponding to the wmb() in the producer. According to Documentation/memory-barriers.txt: "When dealing with CPU-CPU interactions, certain types of memory barrier should always be paired. A lack of appropriate pairing is almost certainly an error." In cases where an rmb() is not a no-op and a consumer is removing data from the ring while a producer is adding new entries, a load reorder would allow CPU1 CPU2 ---- ---- LOAD desc.size [e.g] STORE desc.size set desc.hdr.state = VIO_DESC_READY LOAD desc.hdr.state [because VIO_DESC_READY, use old desc.size, already loaded out of order] [CPU2 has reordered apparently unrelated LOADs] To ensure other desc fields are not loaded before checking VIO_DESC_READY, we need an rmb() between the check and desc data accesses. I've also moved the viodbg() call to after the rmb() so that it, too, has current descriptor data even with reordering, which has the side effect that it won't print anything for descriptors that are not VIO_DESC_READY as before. That's a) probably a good thing, since the fields are not necessarily set and, b) better than adding another rmb() just for viodbg(). This would not be possible if strict-ordering is enforced, but then the memory barriers should be no-ops in that case. Signed-off-by: David L Stevens Signed-off-by: David S. Miller --- drivers/net/ethernet/sun/sunvnet.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c index 23c89ab5a6ad..f67539650c38 100644 --- a/drivers/net/ethernet/sun/sunvnet.c +++ b/drivers/net/ethernet/sun/sunvnet.c @@ -350,14 +350,17 @@ static int vnet_walk_rx_one(struct vnet_port *port, if (IS_ERR(desc)) return PTR_ERR(desc); + if (desc->hdr.state != VIO_DESC_READY) + return 1; + + rmb(); + viodbg(DATA, "vio_walk_rx_one desc[%02x:%02x:%08x:%08x:%llx:%llx]\n", desc->hdr.state, desc->hdr.ack, desc->size, desc->ncookies, desc->cookies[0].cookie_addr, desc->cookies[0].cookie_size); - if (desc->hdr.state != VIO_DESC_READY) - return 1; err = vnet_rx_one(port, desc->size, desc->cookies, desc->ncookies); if (err == -ECONNRESET) return err; From 82d5e2b8b466d5bfc7c6278a7c04a53b9b287673 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 8 Sep 2014 04:00:00 -0700 Subject: [PATCH 024/172] net: fix skb_page_frag_refill() kerneldoc In commit d9b2938aabf7 ("net: attempt a single high order allocation) I forgot to update kerneldoc, as @prio parameter was renamed to @gfp Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/core/sock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/sock.c b/net/core/sock.c index d372b4bd3f99..9c3f823e76a9 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1866,7 +1866,7 @@ EXPORT_SYMBOL(sock_alloc_send_skb); * skb_page_frag_refill - check that a page_frag contains enough room * @sz: minimum size of the fragment we want to get * @pfrag: pointer to page_frag - * @prio: priority for memory allocation + * @gfp: priority for memory allocation * * Note: While this allocator tries to use high order pages, there is * no guarantee that allocations succeed. Therefore, @sz MUST be From 208f7ca4d4a6886256763c9c073775c5fdaf47eb Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Mon, 8 Sep 2014 18:01:53 +0300 Subject: [PATCH 025/172] drivers: net: ethernet: octeon_mgmt: fix a compiler warning Fix the following compiler warning: drivers/net/ethernet/octeon/octeon_mgmt.c: In function 'octeon_mgmt_clean_tx_buffers': drivers/net/ethernet/octeon/octeon_mgmt.c:295:4: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] u64 ns = cvmx_read_csr(CVMX_MIXX_TSTAMP(p->port)); ^ Signed-off-by: Aaro Koskinen Acked-by: David Daney Signed-off-by: David S. Miller --- drivers/net/ethernet/octeon/octeon_mgmt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c index 979c6980639f..a42293092ea4 100644 --- a/drivers/net/ethernet/octeon/octeon_mgmt.c +++ b/drivers/net/ethernet/octeon/octeon_mgmt.c @@ -290,9 +290,11 @@ static void octeon_mgmt_clean_tx_buffers(struct octeon_mgmt *p) /* Read the hardware TX timestamp if one was recorded */ if (unlikely(re.s.tstamp)) { struct skb_shared_hwtstamps ts; + u64 ns; + memset(&ts, 0, sizeof(ts)); /* Read the timestamp */ - u64 ns = cvmx_read_csr(CVMX_MIXX_TSTAMP(p->port)); + ns = cvmx_read_csr(CVMX_MIXX_TSTAMP(p->port)); /* Remove the timestamp from the FIFO */ cvmx_write_csr(CVMX_MIXX_TSCTL(p->port), 0); /* Tell the kernel about the timestamp */ From 278d436a476f69fc95d5c82bf61b6c2d02f4d44e Mon Sep 17 00:00:00 2001 From: Ivan Vecera Date: Mon, 8 Sep 2014 18:46:53 +0200 Subject: [PATCH 026/172] net/mlx4_en: do not ignore autoneg in mlx4_en_set_pauseparam() The driver does not support pause autonegotiation so it should return -EINVAL when the function is called with non-zero autoneg. Cc: Amir Vadai Signed-off-by: Ivan Vecera Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index e22f24f784fc..35ff2925110a 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -487,6 +487,9 @@ static int mlx4_en_set_pauseparam(struct net_device *dev, struct mlx4_en_dev *mdev = priv->mdev; int err; + if (pause->autoneg) + return -EINVAL; + priv->prof->tx_pause = pause->tx_pause != 0; priv->prof->rx_pause = pause->rx_pause != 0; err = mlx4_SET_PORT_general(mdev->dev, priv->port, From fe24ba082b8483c81f546d24e40a55624295b85d Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 8 Sep 2014 11:37:51 -0700 Subject: [PATCH 027/172] net: systemport: check harder for out of memory conditions There is a potential case where we might be failing to refill a control block, leaving it with both a NULL skb pointer *and* a NULL dma_unmap_addr. The way we process incoming packets, by first calling dma_unmap_single(), and then only checking for a potential NULL skb can lead to situations where do pass a NULL dma_unmap_addr() to dma_unmap_single(), resulting in an oops. Fix this my moving the NULL skb check earlier, since no backing skb also means no corresponding DMA mapping for this packet. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bcmsysport.c | 31 +++++++++++++--------- 1 file changed, 19 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index 6f4e18644bd4..d9b9170ed2fc 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -534,6 +534,25 @@ static unsigned int bcm_sysport_desc_rx(struct bcm_sysport_priv *priv, while ((processed < to_process) && (processed < budget)) { cb = &priv->rx_cbs[priv->rx_read_ptr]; skb = cb->skb; + + processed++; + priv->rx_read_ptr++; + + if (priv->rx_read_ptr == priv->num_rx_bds) + priv->rx_read_ptr = 0; + + /* We do not have a backing SKB, so we do not a corresponding + * DMA mapping for this incoming packet since + * bcm_sysport_rx_refill always either has both skb and mapping + * or none. + */ + if (unlikely(!skb)) { + netif_err(priv, rx_err, ndev, "out of memory!\n"); + ndev->stats.rx_dropped++; + ndev->stats.rx_errors++; + goto refill; + } + dma_unmap_single(kdev, dma_unmap_addr(cb, dma_addr), RX_BUF_LENGTH, DMA_FROM_DEVICE); @@ -543,23 +562,11 @@ static unsigned int bcm_sysport_desc_rx(struct bcm_sysport_priv *priv, status = (rsb->rx_status_len >> DESC_STATUS_SHIFT) & DESC_STATUS_MASK; - processed++; - priv->rx_read_ptr++; - if (priv->rx_read_ptr == priv->num_rx_bds) - priv->rx_read_ptr = 0; - netif_dbg(priv, rx_status, ndev, "p=%d, c=%d, rd_ptr=%d, len=%d, flag=0x%04x\n", p_index, priv->rx_c_index, priv->rx_read_ptr, len, status); - if (unlikely(!skb)) { - netif_err(priv, rx_err, ndev, "out of memory!\n"); - ndev->stats.rx_dropped++; - ndev->stats.rx_errors++; - goto refill; - } - if (unlikely(!(status & DESC_EOP) || !(status & DESC_SOP))) { netif_err(priv, rx_status, ndev, "fragmented packet!\n"); ndev->stats.rx_dropped++; From b629be5c8399d7c423b92135eb43a86c924d1cbc Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 8 Sep 2014 11:37:52 -0700 Subject: [PATCH 028/172] net: bcmgenet: check harder for out of memory conditions There is a potential case where we might be failing to refill a control block, leaving it with both a NULL skb pointer *and* a NULL dma_unmap_addr. The way we process incoming packets, by first calling dma_unmap_single(), and then only checking for a potential NULL skb can lead to situations where do pass a NULL dma_unmap_addr() to dma_unmap_single(), resulting in an oops. Fix this my moving the NULL skb check earlier, since no backing skb also means no corresponding DMA mapping for this packet. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- .../net/ethernet/broadcom/genet/bcmgenet.c | 33 +++++++++++-------- 1 file changed, 19 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 3f9d4de8173c..cdef86a03862 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -1274,12 +1274,29 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_priv *priv, while ((rxpktprocessed < rxpkttoprocess) && (rxpktprocessed < budget)) { + cb = &priv->rx_cbs[priv->rx_read_ptr]; + skb = cb->skb; + + rxpktprocessed++; + + priv->rx_read_ptr++; + priv->rx_read_ptr &= (priv->num_rx_bds - 1); + + /* We do not have a backing SKB, so we do not have a + * corresponding DMA mapping for this incoming packet since + * bcmgenet_rx_refill always either has both skb and mapping or + * none. + */ + if (unlikely(!skb)) { + dev->stats.rx_dropped++; + dev->stats.rx_errors++; + goto refill; + } + /* Unmap the packet contents such that we can use the * RSV from the 64 bytes descriptor when enabled and save * a 32-bits register read */ - cb = &priv->rx_cbs[priv->rx_read_ptr]; - skb = cb->skb; dma_unmap_single(&dev->dev, dma_unmap_addr(cb, dma_addr), priv->rx_buf_len, DMA_FROM_DEVICE); @@ -1307,18 +1324,6 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_priv *priv, __func__, p_index, priv->rx_c_index, priv->rx_read_ptr, dma_length_status); - rxpktprocessed++; - - priv->rx_read_ptr++; - priv->rx_read_ptr &= (priv->num_rx_bds - 1); - - /* out of memory, just drop packets at the hardware level */ - if (unlikely(!skb)) { - dev->stats.rx_dropped++; - dev->stats.rx_errors++; - goto refill; - } - if (unlikely(!(dma_flag & DMA_EOP) || !(dma_flag & DMA_SOP))) { netif_err(priv, rx_status, dev, "dropping fragmented packet!\n"); From 8ce8ebeb572d70e672a8d158e93ffaac80ea7576 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Mon, 28 Jul 2014 16:38:21 +0200 Subject: [PATCH 029/172] clk/efm32gg: fix dt init prototype MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Since commit 54196ccbe0ba (of: consolidate linker section OF match table declarations) which went into 3.16-rc1 the following compiler warning is generated: In file included from drivers/clk/clk-efm32gg.c:12:0: include/linux/of.h:772:20: warning: comparison of distinct pointer types lacks a cast [enabled by default] .data = (fn == (fn_type)NULL) ? fn : fn } ^ include/linux/of.h:785:3: note: in expansion of macro '_OF_DECLARE' _OF_DECLARE(table, name, compat, fn, of_init_fn_1) ^ include/linux/clk-provider.h:545:42: note: in expansion of macro 'OF_DECLARE_1' #define CLK_OF_DECLARE(name, compat, fn) OF_DECLARE_1(clk, name, compat, fn) ^ drivers/clk/clk-efm32gg.c:81:1: note: in expansion of macro 'CLK_OF_DECLARE' CLK_OF_DECLARE(efm32ggcmu, "efm32gg,cmu", efm32gg_cmu_init); ^ Fix it by making efm32gg_cmu_init return void. Cc: Rob Herring Reported-by: Bryan Hundven Reviewed-by: Arnd Bergmann Signed-off-by: Uwe Kleine-König Signed-off-by: Mike Turquette --- drivers/clk/clk-efm32gg.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/clk/clk-efm32gg.c b/drivers/clk/clk-efm32gg.c index bac2ddf49d02..73a8d0ff530c 100644 --- a/drivers/clk/clk-efm32gg.c +++ b/drivers/clk/clk-efm32gg.c @@ -22,7 +22,7 @@ static struct clk_onecell_data clk_data = { .clk_num = ARRAY_SIZE(clk), }; -static int __init efm32gg_cmu_init(struct device_node *np) +static void __init efm32gg_cmu_init(struct device_node *np) { int i; void __iomem *base; @@ -33,7 +33,7 @@ static int __init efm32gg_cmu_init(struct device_node *np) base = of_iomap(np, 0); if (!base) { pr_warn("Failed to map address range for efm32gg,cmu node\n"); - return -EADDRNOTAVAIL; + return; } clk[clk_HFXO] = clk_register_fixed_rate(NULL, "HFXO", NULL, @@ -76,6 +76,6 @@ static int __init efm32gg_cmu_init(struct device_node *np) clk[clk_HFPERCLKDAC0] = clk_register_gate(NULL, "HFPERCLK.DAC0", "HFXO", 0, base + CMU_HFPERCLKEN0, 17, 0, NULL); - return of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); } CLK_OF_DECLARE(efm32ggcmu, "efm32gg,cmu", efm32gg_cmu_init); From 6a2a2b3ae0759843b22c929881cc184b00cc63ff Mon Sep 17 00:00:00 2001 From: Ani Sinha Date: Mon, 8 Sep 2014 14:49:59 -0700 Subject: [PATCH 030/172] net:socket: set msg_namelen to 0 if msg_name is passed as NULL in msghdr struct from userland. Linux manpage for recvmsg and sendmsg calls does not explicitly mention setting msg_namelen to 0 when msg_name passed set as NULL. When developers don't set msg_namelen member in msghdr, it might contain garbage value which will fail the validation check and sendmsg and recvmsg calls from kernel will return EINVAL. This will break old binaries and any code for which there is no access to source code. To fix this, we set msg_namelen to 0 when msg_name is passed as NULL from userland. Signed-off-by: Ani Sinha Signed-off-by: David S. Miller --- net/socket.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/socket.c b/net/socket.c index 2e2586e2dee1..4cdbc107606f 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1996,6 +1996,9 @@ static int copy_msghdr_from_user(struct msghdr *kmsg, if (copy_from_user(kmsg, umsg, sizeof(struct msghdr))) return -EFAULT; + if (kmsg->msg_name == NULL) + kmsg->msg_namelen = 0; + if (kmsg->msg_namelen < 0) return -EINVAL; From 37b7021d9d713964482faeb9e0935f458a1a4016 Mon Sep 17 00:00:00 2001 From: Masanari Iida Date: Tue, 9 Sep 2014 18:07:55 +0900 Subject: [PATCH 031/172] net:bonding: Add missing space in bonding driver parameter description This patch adds missing space between "interface" and "by" in bonding module parameter description. Signed-off-by: Masanari Iida Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index f0f5eab0fab1..57912ee231cb 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -175,7 +175,7 @@ MODULE_PARM_DESC(fail_over_mac, "For active-backup, do not set all slaves to " "the same MAC; 0 for none (default), " "1 for active, 2 for follow"); module_param(all_slaves_active, int, 0); -MODULE_PARM_DESC(all_slaves_active, "Keep all frames received on an interface" +MODULE_PARM_DESC(all_slaves_active, "Keep all frames received on an interface " "by setting active flag for all slaves; " "0 for never (default), 1 for always."); module_param(resend_igmp, int, 0); From ed3bfdfdced76aa7edb0b05c0d739ee3a2a6e619 Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 9 Sep 2014 15:19:44 +0100 Subject: [PATCH 032/172] RxRPC: Fix missing __user annotation Fix a missing __user annotation in a cast of a user space pointer (found by checker). Signed-off-by: David Howells Signed-off-by: David S. Miller --- net/rxrpc/ar-key.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/rxrpc/ar-key.c b/net/rxrpc/ar-key.c index b45d080e64a7..1b24191167f1 100644 --- a/net/rxrpc/ar-key.c +++ b/net/rxrpc/ar-key.c @@ -1143,7 +1143,7 @@ static long rxrpc_read(const struct key *key, if (copy_to_user(xdr, (s), _l) != 0) \ goto fault; \ if (_l & 3 && \ - copy_to_user((u8 *)xdr + _l, &zero, 4 - (_l & 3)) != 0) \ + copy_to_user((u8 __user *)xdr + _l, &zero, 4 - (_l & 3)) != 0) \ goto fault; \ xdr += (_l + 3) >> 2; \ } while(0) From a0e2c822bf0a1095dc250b5875e39ac0662a5df6 Mon Sep 17 00:00:00 2001 From: Mugunthan V N Date: Wed, 10 Sep 2014 16:38:09 +0530 Subject: [PATCH 033/172] drivers: net: cpsw: dual_emac: fix reducing of rx descriptor during ifdown In Dual EMAC, when both interface are up and while doing ifdown with heavy traffic then skbs already processed by DMA from that slave emac has to be requeued as still the other interface is up and running. Signed-off-by: Mugunthan V N Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/cpsw.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 999fb72688d2..411232f07c3f 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -699,6 +699,28 @@ static void cpsw_rx_handler(void *token, int len, int status) cpsw_dual_emac_src_port_detect(status, priv, ndev, skb); if (unlikely(status < 0) || unlikely(!netif_running(ndev))) { + bool ndev_status = false; + struct cpsw_slave *slave = priv->slaves; + int n; + + if (priv->data.dual_emac) { + /* In dual emac mode check for all interfaces */ + for (n = priv->data.slaves; n; n--, slave++) + if (netif_running(slave->ndev)) + ndev_status = true; + } + + if (ndev_status && (status >= 0)) { + /* The packet received is for the interface which + * is already down and the other interface is up + * and running, intead of freeing which results + * in reducing of the number of rx descriptor in + * DMA engine, requeue skb back to cpdma. + */ + new_skb = skb; + goto requeue; + } + /* the interface is going down, skbs are purged */ dev_kfree_skb_any(skb); return; @@ -717,6 +739,7 @@ static void cpsw_rx_handler(void *token, int len, int status) new_skb = skb; } +requeue: ret = cpdma_chan_submit(priv->rxch, new_skb, new_skb->data, skb_tailroom(new_skb), 0); if (WARN_ON(ret < 0)) From a91c772fa0275163508e1078ff6d474d423244fb Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Wed, 10 Sep 2014 16:41:53 +0300 Subject: [PATCH 034/172] net/mlx4: Correctly configure single ported VFs from the host Single port VFs are seen PCI wise on both ports of the PF (we don't have single port PFs with ConnectX). With this in mind, it's possible for virtualization tools to try and configure a single ported VF through the "wrong" PF port. To handle that, we use the PF driver mapping of single port VFs to NIC ports and adjust the port value before calling into the low level code that does the actual VF configuration Fixes: 449fc48 ('net/mlx4: Adapt code for N-Port VF') Signed-off-by: Matan Barak Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/cmd.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c index 65a4a0f88ea0..02a2e90d581a 100644 --- a/drivers/net/ethernet/mellanox/mlx4/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c @@ -2389,6 +2389,22 @@ struct mlx4_slaves_pport mlx4_phys_to_slaves_pport_actv( } EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport_actv); +static int mlx4_slaves_closest_port(struct mlx4_dev *dev, int slave, int port) +{ + struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); + int min_port = find_first_bit(actv_ports.ports, dev->caps.num_ports) + + 1; + int max_port = min_port + + bitmap_weight(actv_ports.ports, dev->caps.num_ports); + + if (port < min_port) + port = min_port; + else if (port >= max_port) + port = max_port - 1; + + return port; +} + int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac) { struct mlx4_priv *priv = mlx4_priv(dev); @@ -2402,6 +2418,7 @@ int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac) if (slave < 0) return -EINVAL; + port = mlx4_slaves_closest_port(dev, slave, port); s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; s_info->mac = mac; mlx4_info(dev, "default mac on vf %d port %d to %llX will take afect only after vf restart\n", @@ -2428,6 +2445,7 @@ int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos) if (slave < 0) return -EINVAL; + port = mlx4_slaves_closest_port(dev, slave, port); vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; if ((0 == vlan) && (0 == qos)) @@ -2455,6 +2473,7 @@ bool mlx4_get_slave_default_vlan(struct mlx4_dev *dev, int port, int slave, struct mlx4_priv *priv; priv = mlx4_priv(dev); + port = mlx4_slaves_closest_port(dev, slave, port); vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; if (MLX4_VGT != vp_oper->state.default_vlan) { @@ -2482,6 +2501,7 @@ int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting) if (slave < 0) return -EINVAL; + port = mlx4_slaves_closest_port(dev, slave, port); s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; s_info->spoofchk = setting; @@ -2535,6 +2555,7 @@ int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_stat if (slave < 0) return -EINVAL; + port = mlx4_slaves_closest_port(dev, slave, port); switch (link_state) { case IFLA_VF_LINK_STATE_AUTO: /* get current link state */ From 311be98a3cca6469adf369714d689f9bbf286190 Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Wed, 10 Sep 2014 16:41:54 +0300 Subject: [PATCH 035/172] net/mlx4: Use the correct VSD mask in UPDATE_QP When doing VGT->VST->VGT state changes, we used an incorrect mask for the vlan-stripping-disable (VSD) flag, hence the vlan related policy for user-space Raw Ethernet QPs open by VFs wasn't really applied. Fix that, by using the correct mask. Fixes: f0f829b ('net/mlx4_core: Add immediate activate for VGT->VST->VGT') Signed-off-by: Matan Barak Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 1089367fed22..f87a4a38575f 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -4818,7 +4818,7 @@ void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work) MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED; upd_context = mailbox->buf; - upd_context->qp_mask = cpu_to_be64(MLX4_UPD_QP_MASK_VSD); + upd_context->qp_mask = cpu_to_be64(1ULL << MLX4_UPD_QP_MASK_VSD); spin_lock_irq(mlx4_tlock(dev)); list_for_each_entry_safe(qp, tmp, qp_list, com.list) { From b7834758e6f33da401f584035f1b6b62d0672aab Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Wed, 10 Sep 2014 16:41:55 +0300 Subject: [PATCH 036/172] net/mlx4: Avoid dealing with MAC index in UPDATE_QP wrapper if not needed The current wrapper implementation of the UPDATE_QP command tries to get the MAC index, even if MAC wasn't set by the VF. Fix it up to only handle the MAC field if it's valid. Fixes: ce8d9e0 ('net/mlx4_core: Add UPDATE_QP SRIOV wrapper support') Signed-off-by: Matan Barak Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- .../ethernet/mellanox/mlx4/resource_tracker.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index f87a4a38575f..2fe61b6a8e37 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -3998,13 +3998,17 @@ int mlx4_UPDATE_QP_wrapper(struct mlx4_dev *dev, int slave, } port = (rqp->sched_queue >> 6 & 1) + 1; - smac_index = cmd->qp_context.pri_path.grh_mylmc; - err = mac_find_smac_ix_in_slave(dev, slave, port, - smac_index, &mac); - if (err) { - mlx4_err(dev, "Failed to update qpn 0x%x, MAC is invalid. smac_ix: %d\n", - qpn, smac_index); - goto err_mac; + + if (pri_addr_path_mask & (1ULL << MLX4_UPD_QP_PATH_MASK_MAC_INDEX)) { + smac_index = cmd->qp_context.pri_path.grh_mylmc; + err = mac_find_smac_ix_in_slave(dev, slave, port, + smac_index, &mac); + + if (err) { + mlx4_err(dev, "Failed to update qpn 0x%x, MAC is invalid. smac_ix: %d\n", + qpn, smac_index); + goto err_mac; + } } err = mlx4_cmd(dev, inbox->dma, From 09e05c3f78e9e82bda5958eb95bbf719f7a0ed6b Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Wed, 10 Sep 2014 16:41:56 +0300 Subject: [PATCH 037/172] net/mlx4: Set vlan stripping policy by the right command Changing the vlan stripping policy of the QP isn't supported by older firmware versions for the INIT2RTR command. Nevertheless, we've used it. Fix that by doing this policy change using INIT2RTR only if the firmware supports it, otherwise, we call UPDATE_QP command to do the task. Fixes: 7677fc9 ('net/mlx4: Strengthen VLAN tags/priorities enforcement in VST mode') Signed-off-by: Matan Barak Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/infiniband/hw/mlx4/main.c | 2 +- drivers/net/ethernet/mellanox/mlx4/qp.c | 14 +++++++++++--- .../ethernet/mellanox/mlx4/resource_tracker.c | 18 ++++++++++++++++-- include/linux/mlx4/device.h | 1 + include/linux/mlx4/qp.h | 12 ++++++++++-- 5 files changed, 39 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index af8256353c7d..162b82c1dde4 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1680,7 +1680,7 @@ static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev, goto unlock; update_params.smac_index = new_smac_index; - if (mlx4_update_qp(ibdev->dev, &qp->mqp, MLX4_UPDATE_QP_SMAC, + if (mlx4_update_qp(ibdev->dev, qp->mqp.qpn, MLX4_UPDATE_QP_SMAC, &update_params)) { release_mac = new_smac; goto unlock; diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c index 0dc31d85fc3b..2301365c79c7 100644 --- a/drivers/net/ethernet/mellanox/mlx4/qp.c +++ b/drivers/net/ethernet/mellanox/mlx4/qp.c @@ -390,13 +390,14 @@ int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp, gfp_t gfp) EXPORT_SYMBOL_GPL(mlx4_qp_alloc); #define MLX4_UPDATE_QP_SUPPORTED_ATTRS MLX4_UPDATE_QP_SMAC -int mlx4_update_qp(struct mlx4_dev *dev, struct mlx4_qp *qp, +int mlx4_update_qp(struct mlx4_dev *dev, u32 qpn, enum mlx4_update_qp_attr attr, struct mlx4_update_qp_params *params) { struct mlx4_cmd_mailbox *mailbox; struct mlx4_update_qp_context *cmd; u64 pri_addr_path_mask = 0; + u64 qp_mask = 0; int err = 0; mailbox = mlx4_alloc_cmd_mailbox(dev); @@ -413,9 +414,16 @@ int mlx4_update_qp(struct mlx4_dev *dev, struct mlx4_qp *qp, cmd->qp_context.pri_path.grh_mylmc = params->smac_index; } - cmd->primary_addr_path_mask = cpu_to_be64(pri_addr_path_mask); + if (attr & MLX4_UPDATE_QP_VSD) { + qp_mask |= 1ULL << MLX4_UPD_QP_MASK_VSD; + if (params->flags & MLX4_UPDATE_QP_PARAMS_FLAGS_VSD_ENABLE) + cmd->qp_context.param3 |= cpu_to_be32(MLX4_STRIP_VLAN); + } - err = mlx4_cmd(dev, mailbox->dma, qp->qpn & 0xffffff, 0, + cmd->primary_addr_path_mask = cpu_to_be64(pri_addr_path_mask); + cmd->qp_mask = cpu_to_be64(qp_mask); + + err = mlx4_cmd(dev, mailbox->dma, qpn & 0xffffff, 0, MLX4_CMD_UPDATE_QP, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 2fe61b6a8e37..5d2498dcf536 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -702,11 +702,13 @@ static int update_vport_qp_param(struct mlx4_dev *dev, struct mlx4_qp_context *qpc = inbox->buf + 8; struct mlx4_vport_oper_state *vp_oper; struct mlx4_priv *priv; + u32 qp_type; int port; port = (qpc->pri_path.sched_queue & 0x40) ? 2 : 1; priv = mlx4_priv(dev); vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; + qp_type = (be32_to_cpu(qpc->flags) >> 16) & 0xff; if (MLX4_VGT != vp_oper->state.default_vlan) { /* the reserved QPs (special, proxy, tunnel) @@ -715,8 +717,20 @@ static int update_vport_qp_param(struct mlx4_dev *dev, if (mlx4_is_qp_reserved(dev, qpn)) return 0; - /* force strip vlan by clear vsd */ - qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN); + /* force strip vlan by clear vsd, MLX QP refers to Raw Ethernet */ + if (qp_type == MLX4_QP_ST_UD || + (qp_type == MLX4_QP_ST_MLX && mlx4_is_eth(dev, port))) { + if (dev->caps.bmme_flags & MLX4_BMME_FLAG_VSD_INIT2RTR) { + *(__be32 *)inbox->buf = + cpu_to_be32(be32_to_cpu(*(__be32 *)inbox->buf) | + MLX4_QP_OPTPAR_VLAN_STRIPPING); + qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN); + } else { + struct mlx4_update_qp_params params = {.flags = 0}; + + mlx4_update_qp(dev, qpn, MLX4_UPDATE_QP_VSD, ¶ms); + } + } if (vp_oper->state.link_state == IFLA_VF_LINK_STATE_DISABLE && dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) { diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 511c6e0d21a9..a5b7d7cfcedf 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -209,6 +209,7 @@ enum { MLX4_BMME_FLAG_TYPE_2_WIN = 1 << 9, MLX4_BMME_FLAG_RESERVED_LKEY = 1 << 10, MLX4_BMME_FLAG_FAST_REG_WR = 1 << 11, + MLX4_BMME_FLAG_VSD_INIT2RTR = 1 << 28, }; enum mlx4_event { diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h index 7040dc98ff8b..5f4e36cf0091 100644 --- a/include/linux/mlx4/qp.h +++ b/include/linux/mlx4/qp.h @@ -56,7 +56,8 @@ enum mlx4_qp_optpar { MLX4_QP_OPTPAR_RNR_RETRY = 1 << 13, MLX4_QP_OPTPAR_ACK_TIMEOUT = 1 << 14, MLX4_QP_OPTPAR_SCHED_QUEUE = 1 << 16, - MLX4_QP_OPTPAR_COUNTER_INDEX = 1 << 20 + MLX4_QP_OPTPAR_COUNTER_INDEX = 1 << 20, + MLX4_QP_OPTPAR_VLAN_STRIPPING = 1 << 21, }; enum mlx4_qp_state { @@ -423,13 +424,20 @@ struct mlx4_wqe_inline_seg { enum mlx4_update_qp_attr { MLX4_UPDATE_QP_SMAC = 1 << 0, + MLX4_UPDATE_QP_VSD = 1 << 2, + MLX4_UPDATE_QP_SUPPORTED_ATTRS = (1 << 2) - 1 +}; + +enum mlx4_update_qp_params_flags { + MLX4_UPDATE_QP_PARAMS_FLAGS_VSD_ENABLE = 1 << 0, }; struct mlx4_update_qp_params { u8 smac_index; + u32 flags; }; -int mlx4_update_qp(struct mlx4_dev *dev, struct mlx4_qp *qp, +int mlx4_update_qp(struct mlx4_dev *dev, u32 qpn, enum mlx4_update_qp_attr attr, struct mlx4_update_qp_params *params); int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt, From 8e1a03b63c62bfa622c3989f8aead17ea845db7d Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Wed, 10 Sep 2014 17:15:11 +0300 Subject: [PATCH 038/172] mlx4: Fix wrong endianess access with QP context flags We wrongly tested QP context bits without BE conversion as was spotted by sparse... drivers/infiniband/hw/mlx4/qp.c:1685:38: sparse: restricted __be32 degrades to integer Fix that! Fixes: d2fce8a ('mlx4: Set user-space raw Ethernet QPs to properly handle VXLAN traffic') Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/infiniband/hw/mlx4/qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index efb9eff8906c..836503927dea 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1682,7 +1682,7 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp, MLX4_IB_LINK_TYPE_ETH; if (dev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) { /* set QP to receive both tunneled & non-tunneled packets */ - if (!(context->flags & (1 << MLX4_RSS_QPC_FLAG_OFFSET))) + if (!(context->flags & cpu_to_be32(1 << MLX4_RSS_QPC_FLAG_OFFSET))) context->srqn = cpu_to_be32(7 << 28); } } From 1d7efe9dfaa6025acd29a726315f6f7d30a9f1ca Mon Sep 17 00:00:00 2001 From: Markos Chandras Date: Wed, 10 Sep 2014 14:51:44 +0100 Subject: [PATCH 039/172] Documentation: filter: Add MIPS to architectures with BPF JIT MIPS supports BPF JIT since v3.16-rc1 Cc: Randy Dunlap Cc: "David S. Miller" Cc: Daniel Borkmann Cc: Alexei Starovoitov Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Daniel Borkmann Signed-off-by: Markos Chandras Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller --- Documentation/networking/filter.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Documentation/networking/filter.txt b/Documentation/networking/filter.txt index c48a9704bda8..d16f424c5e8d 100644 --- a/Documentation/networking/filter.txt +++ b/Documentation/networking/filter.txt @@ -462,9 +462,9 @@ JIT compiler ------------ The Linux kernel has a built-in BPF JIT compiler for x86_64, SPARC, PowerPC, -ARM and s390 and can be enabled through CONFIG_BPF_JIT. The JIT compiler is -transparently invoked for each attached filter from user space or for internal -kernel users if it has been previously enabled by root: +ARM, MIPS and s390 and can be enabled through CONFIG_BPF_JIT. The JIT compiler +is transparently invoked for each attached filter from user space or for +internal kernel users if it has been previously enabled by root: echo 1 > /proc/sys/net/core/bpf_jit_enable From 8badd65e48c90d66587359d5329c2813088c0f50 Mon Sep 17 00:00:00 2001 From: David Jander Date: Wed, 27 Aug 2014 12:02:16 +0200 Subject: [PATCH 040/172] can: flexcan: avoid calling usleep_range from interrupt context Apparently can_restart() runs from a (timer-) interrupt and can call flexcan_chip_[en|dis]able(), so avoid using usleep_range() Signed-off-by: David Jander Cc: linux-stable Signed-off-by: Marc Kleine-Budde --- drivers/net/can/flexcan.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 944aa5d3af6e..630c7bf032a8 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -298,7 +298,7 @@ static int flexcan_chip_enable(struct flexcan_priv *priv) flexcan_write(reg, ®s->mcr); while (timeout-- && (flexcan_read(®s->mcr) & FLEXCAN_MCR_LPM_ACK)) - usleep_range(10, 20); + udelay(10); if (flexcan_read(®s->mcr) & FLEXCAN_MCR_LPM_ACK) return -ETIMEDOUT; @@ -317,7 +317,7 @@ static int flexcan_chip_disable(struct flexcan_priv *priv) flexcan_write(reg, ®s->mcr); while (timeout-- && !(flexcan_read(®s->mcr) & FLEXCAN_MCR_LPM_ACK)) - usleep_range(10, 20); + udelay(10); if (!(flexcan_read(®s->mcr) & FLEXCAN_MCR_LPM_ACK)) return -ETIMEDOUT; @@ -336,7 +336,7 @@ static int flexcan_chip_freeze(struct flexcan_priv *priv) flexcan_write(reg, ®s->mcr); while (timeout-- && !(flexcan_read(®s->mcr) & FLEXCAN_MCR_FRZ_ACK)) - usleep_range(100, 200); + udelay(100); if (!(flexcan_read(®s->mcr) & FLEXCAN_MCR_FRZ_ACK)) return -ETIMEDOUT; @@ -355,7 +355,7 @@ static int flexcan_chip_unfreeze(struct flexcan_priv *priv) flexcan_write(reg, ®s->mcr); while (timeout-- && (flexcan_read(®s->mcr) & FLEXCAN_MCR_FRZ_ACK)) - usleep_range(10, 20); + udelay(10); if (flexcan_read(®s->mcr) & FLEXCAN_MCR_FRZ_ACK) return -ETIMEDOUT; @@ -370,7 +370,7 @@ static int flexcan_chip_softreset(struct flexcan_priv *priv) flexcan_write(FLEXCAN_MCR_SOFTRST, ®s->mcr); while (timeout-- && (flexcan_read(®s->mcr) & FLEXCAN_MCR_SOFTRST)) - usleep_range(10, 20); + udelay(10); if (flexcan_read(®s->mcr) & FLEXCAN_MCR_SOFTRST) return -ETIMEDOUT; From ae0fd6354134e63aa3e62456e2080c430287144d Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Thu, 11 Sep 2014 19:05:48 +0530 Subject: [PATCH 041/172] Revert "ath9k: Calculate sleep duration" This reverts commit 09ebb810927a110e4c354beb20308830d108a54b. ath9k_hw_set_sta_beacon_timers() configures AR_TIM_PERIOD with the beacon interval. Before this commit, the sleepduration was never greater than the beacon interval. But now, the behavior has changed. For example, with an AP that uses a beacon interval of 100: ath: phy9: next beacon 61128704 ath: phy9: beacon period 204800 ath: phy9: DTIM period 204800 If the sleepduration is calculated based on the listen time, then the bmiss threshold should also be changed since the HW would be in sleep state for a longer time, but that is not done currently. To avoid configuring a higher beacon interval based on the sleepduration, revert to the original behavior. Power consumption is not a problem since PS is disabled in ath9k anyway. Cc: stable@vger.kernel.org Cc: Rajkumar Manoharan Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/common-beacon.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/common-beacon.c b/drivers/net/wireless/ath/ath9k/common-beacon.c index 733be5178481..6ad44470d0f2 100644 --- a/drivers/net/wireless/ath/ath9k/common-beacon.c +++ b/drivers/net/wireless/ath/ath9k/common-beacon.c @@ -57,7 +57,7 @@ int ath9k_cmn_beacon_config_sta(struct ath_hw *ah, struct ath9k_beacon_state *bs) { struct ath_common *common = ath9k_hw_common(ah); - int dtim_intval, sleepduration; + int dtim_intval; u64 tsf; /* No need to configure beacon if we are not associated */ @@ -75,7 +75,6 @@ int ath9k_cmn_beacon_config_sta(struct ath_hw *ah, * last beacon we received (which may be none). */ dtim_intval = conf->intval * conf->dtim_period; - sleepduration = ah->hw->conf.listen_interval * conf->intval; /* * Pull nexttbtt forward to reflect the current @@ -113,7 +112,7 @@ int ath9k_cmn_beacon_config_sta(struct ath_hw *ah, */ bs->bs_sleepduration = TU_TO_USEC(roundup(IEEE80211_MS_TO_TU(100), - sleepduration)); + conf->intval)); if (bs->bs_sleepduration > bs->bs_dtimperiod) bs->bs_sleepduration = bs->bs_dtimperiod; From e09c2c295468476a239d13324ce9042ec4de05eb Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 13 Sep 2014 04:14:30 +0900 Subject: [PATCH 042/172] workqueue: apply __WQ_ORDERED to create_singlethread_workqueue() create_singlethread_workqueue() is a compat interface for single threaded workqueue which maps to ordered workqueue w/ rescuer in the current implementation. create_singlethread_workqueue() currently implemented by invoking alloc_workqueue() w/ appropriate parameters. 8719dceae2f9 ("workqueue: reject adjusting max_active or applying attrs to ordered workqueues") introduced __WQ_ORDERED to protect ordered workqueues against dynamic attribute changes which can break ordering guarantees but forgot to apply it to create_singlethread_workqueue(). This in itself is okay as nobody currently uses dynamic attribute change on workqueues created with create_singlethread_workqueue(). However, 4c16bd327c ("workqueue: implement NUMA affinity for unbound workqueues") broke singlethreaded guarantee for ordered workqueues through allocating a separate pool_workqueue on each NUMA node by default. A later change 8a2b75384444 ("workqueue: fix ordered workqueues in NUMA setups") fixed it by allocating only one global pool_workqueue if __WQ_ORDERED is set. Combined, the __WQ_ORDERED omission in create_singlethread_workqueue() became critical breaking its single threadedness and ordering guarantee. Let's make create_singlethread_workqueue() wrap alloc_ordered_workqueue() instead so that it inherits __WQ_ORDERED and can implicitly track future ordered_workqueue changes. v2: I missed that __WQ_ORDERED now protects against pwq splitting across NUMA nodes and incorrectly described the patch as a nice-to-have fix to protect against future dynamic attribute usages. Oleg pointed out that this is actually a critical breakage due to 8a2b75384444 ("workqueue: fix ordered workqueues in NUMA setups"). Signed-off-by: Tejun Heo Reported-by: Mike Anderson Cc: Oleg Nesterov Cc: Gustavo Luiz Duarte Cc: Tomas Henzl Cc: stable@vger.kernel.org Fixes: 4c16bd327c ("workqueue: implement NUMA affinity for unbound workqueues") --- include/linux/workqueue.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index a0cc2e95ed1b..b996e6cde6bb 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -419,7 +419,7 @@ __alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active, alloc_workqueue("%s", WQ_FREEZABLE | WQ_UNBOUND | WQ_MEM_RECLAIM, \ 1, (name)) #define create_singlethread_workqueue(name) \ - alloc_workqueue("%s", WQ_UNBOUND | WQ_MEM_RECLAIM, 1, (name)) + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, name) extern void destroy_workqueue(struct workqueue_struct *wq); From 7ce7679d6bbd1715799a9cf17b9b558bc2d962b7 Mon Sep 17 00:00:00 2001 From: Beniamino Galvani Date: Wed, 10 Sep 2014 22:50:02 +0200 Subject: [PATCH 043/172] net: arc_emac: enable tx interrupts In the current implementation the cleaning of tx ring is done by the NAPI poll handler, which is scheduled after rx interrupts. Thus, in absence of received packets the reclaim of used tx buffers is never executed, blocking further transmission. This can be easily reproduced starting the transmission of a UDP flow with iperf, which blocks almost immediately because skbs are not returned to the stack and the socket send buffer becomes full. The patch enables tx interrupts so that the tx reclaim is scheduled after completed transmissions. Signed-off-by: Beniamino Galvani Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/arc/emac_main.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c index fe5cfeace6e3..f7ab90d9cd7e 100644 --- a/drivers/net/ethernet/arc/emac_main.c +++ b/drivers/net/ethernet/arc/emac_main.c @@ -298,7 +298,7 @@ static int arc_emac_poll(struct napi_struct *napi, int budget) work_done = arc_emac_rx(ndev, budget); if (work_done < budget) { napi_complete(napi); - arc_reg_or(priv, R_ENABLE, RXINT_MASK); + arc_reg_or(priv, R_ENABLE, RXINT_MASK | TXINT_MASK); } return work_done; @@ -327,9 +327,9 @@ static irqreturn_t arc_emac_intr(int irq, void *dev_instance) /* Reset all flags except "MDIO complete" */ arc_reg_set(priv, R_STATUS, status); - if (status & RXINT_MASK) { + if (status & (RXINT_MASK | TXINT_MASK)) { if (likely(napi_schedule_prep(&priv->napi))) { - arc_reg_clr(priv, R_ENABLE, RXINT_MASK); + arc_reg_clr(priv, R_ENABLE, RXINT_MASK | TXINT_MASK); __napi_schedule(&priv->napi); } } @@ -440,7 +440,7 @@ static int arc_emac_open(struct net_device *ndev) arc_reg_set(priv, R_TX_RING, (unsigned int)priv->txbd_dma); /* Enable interrupts */ - arc_reg_set(priv, R_ENABLE, RXINT_MASK | ERR_MASK); + arc_reg_set(priv, R_ENABLE, RXINT_MASK | TXINT_MASK | ERR_MASK); /* Set CONTROL */ arc_reg_set(priv, R_CTRL, @@ -511,7 +511,7 @@ static int arc_emac_stop(struct net_device *ndev) netif_stop_queue(ndev); /* Disable interrupts */ - arc_reg_clr(priv, R_ENABLE, RXINT_MASK | ERR_MASK); + arc_reg_clr(priv, R_ENABLE, RXINT_MASK | TXINT_MASK | ERR_MASK); /* Disable EMAC */ arc_reg_clr(priv, R_CTRL, EN_MASK); From 74dd40bca95f9968e368751ea81f3b98471109ce Mon Sep 17 00:00:00 2001 From: Beniamino Galvani Date: Wed, 10 Sep 2014 22:50:03 +0200 Subject: [PATCH 044/172] net: arc_emac: prevent reuse of unreclaimed tx descriptors This patch changes the logic in tx path to ensure that tx descriptors are reused for transmission only after they have been reclaimed by arc_emac_tx_clean(). Signed-off-by: Beniamino Galvani Signed-off-by: David S. Miller --- drivers/net/ethernet/arc/emac_main.c | 43 +++++++++++++++++++++------- 1 file changed, 32 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c index f7ab90d9cd7e..5919394d9f58 100644 --- a/drivers/net/ethernet/arc/emac_main.c +++ b/drivers/net/ethernet/arc/emac_main.c @@ -29,6 +29,17 @@ #define DRV_NAME "arc_emac" #define DRV_VERSION "1.0" +/** + * arc_emac_tx_avail - Return the number of available slots in the tx ring. + * @priv: Pointer to ARC EMAC private data structure. + * + * returns: the number of slots available for transmission in tx the ring. + */ +static inline int arc_emac_tx_avail(struct arc_emac_priv *priv) +{ + return (priv->txbd_dirty + TX_BD_NUM - priv->txbd_curr - 1) % TX_BD_NUM; +} + /** * arc_emac_adjust_link - Adjust the PHY link duplex. * @ndev: Pointer to the net_device structure. @@ -180,10 +191,15 @@ static void arc_emac_tx_clean(struct net_device *ndev) txbd->info = 0; *txbd_dirty = (*txbd_dirty + 1) % TX_BD_NUM; - - if (netif_queue_stopped(ndev)) - netif_wake_queue(ndev); } + + /* Ensure that txbd_dirty is visible to tx() before checking + * for queue stopped. + */ + smp_mb(); + + if (netif_queue_stopped(ndev) && arc_emac_tx_avail(priv)) + netif_wake_queue(ndev); } /** @@ -574,11 +590,9 @@ static int arc_emac_tx(struct sk_buff *skb, struct net_device *ndev) len = max_t(unsigned int, ETH_ZLEN, skb->len); - /* EMAC still holds this buffer in its possession. - * CPU must not modify this buffer descriptor - */ - if (unlikely((le32_to_cpu(*info) & OWN_MASK) == FOR_EMAC)) { + if (unlikely(!arc_emac_tx_avail(priv))) { netif_stop_queue(ndev); + netdev_err(ndev, "BUG! Tx Ring full when queue awake!\n"); return NETDEV_TX_BUSY; } @@ -607,12 +621,19 @@ static int arc_emac_tx(struct sk_buff *skb, struct net_device *ndev) /* Increment index to point to the next BD */ *txbd_curr = (*txbd_curr + 1) % TX_BD_NUM; - /* Get "info" of the next BD */ - info = &priv->txbd[*txbd_curr].info; + /* Ensure that tx_clean() sees the new txbd_curr before + * checking the queue status. This prevents an unneeded wake + * of the queue in tx_clean(). + */ + smp_mb(); - /* Check if if Tx BD ring is full - next BD is still owned by EMAC */ - if (unlikely((le32_to_cpu(*info) & OWN_MASK) == FOR_EMAC)) + if (!arc_emac_tx_avail(priv)) { netif_stop_queue(ndev); + /* Refresh tx_dirty */ + smp_mb(); + if (arc_emac_tx_avail(priv)) + netif_start_queue(ndev); + } arc_reg_set(priv, R_STATUS, TXPL_MASK); From 381f4dca48d23e155b936b86ccd3ff12f073cf0f Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Wed, 10 Sep 2014 23:23:02 +0200 Subject: [PATCH 045/172] ipv6: clean up anycast when an interface is destroyed If we try to rmmod the driver for an interface while sockets with setsockopt(JOIN_ANYCAST) are alive, some refcounts aren't cleaned up and we get stuck on: unregister_netdevice: waiting for ens3 to become free. Usage count = 1 If we LEAVE_ANYCAST/close everything before rmmod'ing, there is no problem. We need to perform a cleanup similar to the one for multicast in addrconf_ifdown(how == 1). Signed-off-by: Sabrina Dubroca Acked-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- include/net/addrconf.h | 1 + net/ipv6/addrconf.c | 8 +++++--- net/ipv6/anycast.c | 21 +++++++++++++++++++++ 3 files changed, 27 insertions(+), 3 deletions(-) diff --git a/include/net/addrconf.h b/include/net/addrconf.h index f679877bb601..ec51e673b4b6 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -204,6 +204,7 @@ void ipv6_sock_ac_close(struct sock *sk); int ipv6_dev_ac_inc(struct net_device *dev, const struct in6_addr *addr); int __ipv6_dev_ac_dec(struct inet6_dev *idev, const struct in6_addr *addr); +void ipv6_ac_destroy_dev(struct inet6_dev *idev); bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev, const struct in6_addr *addr); bool ipv6_chk_acast_addr_src(struct net *net, struct net_device *dev, diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index fc1fac2a0528..3342ee64f2e3 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -3094,11 +3094,13 @@ static int addrconf_ifdown(struct net_device *dev, int how) write_unlock_bh(&idev->lock); - /* Step 5: Discard multicast list */ - if (how) + /* Step 5: Discard anycast and multicast list */ + if (how) { + ipv6_ac_destroy_dev(idev); ipv6_mc_destroy_dev(idev); - else + } else { ipv6_mc_down(idev); + } idev->tstamp = jiffies; diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c index ff2de7d9d8e6..9a386842fd62 100644 --- a/net/ipv6/anycast.c +++ b/net/ipv6/anycast.c @@ -351,6 +351,27 @@ static int ipv6_dev_ac_dec(struct net_device *dev, const struct in6_addr *addr) return __ipv6_dev_ac_dec(idev, addr); } +void ipv6_ac_destroy_dev(struct inet6_dev *idev) +{ + struct ifacaddr6 *aca; + + write_lock_bh(&idev->lock); + while ((aca = idev->ac_list) != NULL) { + idev->ac_list = aca->aca_next; + write_unlock_bh(&idev->lock); + + addrconf_leave_solict(idev, &aca->aca_addr); + + dst_hold(&aca->aca_rt->dst); + ip6_del_rt(aca->aca_rt); + + aca_put(aca); + + write_lock_bh(&idev->lock); + } + write_unlock_bh(&idev->lock); +} + /* * check if the interface has this anycast address * called with rcu_read_lock() From 0bc9b73be43b21838973e80ddeb5250f0310ebf7 Mon Sep 17 00:00:00 2001 From: Mark Einon Date: Thu, 11 Sep 2014 23:19:49 +0100 Subject: [PATCH 046/172] drivers: net: b44: Fix typo in returning multicast stats nstat->multicast refers to received packets, not transmitted as is returned here. Change it so that received packet stats are given. Signed-off-by: Mark Einon Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/b44.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c index 4a7028d65912..d588136b23b9 100644 --- a/drivers/net/ethernet/broadcom/b44.c +++ b/drivers/net/ethernet/broadcom/b44.c @@ -1697,7 +1697,7 @@ static struct rtnl_link_stats64 *b44_get_stats64(struct net_device *dev, hwstat->tx_underruns + hwstat->tx_excessive_cols + hwstat->tx_late_cols); - nstat->multicast = hwstat->tx_multicast_pkts; + nstat->multicast = hwstat->rx_multicast_pkts; nstat->collisions = hwstat->tx_total_cols; nstat->rx_length_errors = (hwstat->rx_oversize_pkts + From 618073e30c225ddaef086c030a5f0a3c7ef2d323 Mon Sep 17 00:00:00 2001 From: Mugunthan V N Date: Thu, 11 Sep 2014 22:52:38 +0530 Subject: [PATCH 047/172] drivers: net: cpsw: dual_emac: in suspend/resume bring down/up all the netdev During suspend and resume in Dual EMAC, second port is not working as in suspend/resume only the first slave netdev is closed and opened. So bring down and up all the interfaces that are up during suspend/resume. Signed-off-by: Mugunthan V N Tested-by: Nishanth Menon Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/cpsw.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 411232f07c3f..e2a00287f8eb 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -2334,10 +2334,19 @@ static int cpsw_suspend(struct device *dev) struct net_device *ndev = platform_get_drvdata(pdev); struct cpsw_priv *priv = netdev_priv(ndev); - if (netif_running(ndev)) - cpsw_ndo_stop(ndev); + if (priv->data.dual_emac) { + int i; - for_each_slave(priv, soft_reset_slave); + for (i = 0; i < priv->data.slaves; i++) { + if (netif_running(priv->slaves[i].ndev)) + cpsw_ndo_stop(priv->slaves[i].ndev); + soft_reset_slave(priv->slaves + i); + } + } else { + if (netif_running(ndev)) + cpsw_ndo_stop(ndev); + for_each_slave(priv, soft_reset_slave); + } pm_runtime_put_sync(&pdev->dev); @@ -2351,14 +2360,24 @@ static int cpsw_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct net_device *ndev = platform_get_drvdata(pdev); + struct cpsw_priv *priv = netdev_priv(ndev); pm_runtime_get_sync(&pdev->dev); /* Select default pin state */ pinctrl_pm_select_default_state(&pdev->dev); - if (netif_running(ndev)) - cpsw_ndo_open(ndev); + if (priv->data.dual_emac) { + int i; + + for (i = 0; i < priv->data.slaves; i++) { + if (netif_running(priv->slaves[i].ndev)) + cpsw_ndo_open(priv->slaves[i].ndev); + } + } else { + if (netif_running(ndev)) + cpsw_ndo_open(ndev); + } return 0; } From 48c20407f49039d8da155ca00877ec5f057799e6 Mon Sep 17 00:00:00 2001 From: hayeswang Date: Fri, 12 Sep 2014 11:35:11 +0800 Subject: [PATCH 048/172] r8169: fix the default setting of rx vlan If the parameter "features" of __rtl8169_set_features() is equal to dev->features, the variable "changed" is alwayes 0, and nothing would be changed. Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 91652e7235e4..f3ce284e54f0 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -6707,7 +6707,12 @@ static int rtl_open(struct net_device *dev) rtl8169_init_phy(dev, tp); - __rtl8169_set_features(dev, dev->features); + if (dev->features & NETIF_F_HW_VLAN_CTAG_RX) + tp->cp_cmd |= RxVlan; + else + tp->cp_cmd &= ~RxVlan; + + RTL_W16(CPlusCmd, tp->cp_cmd); rtl_pll_power_up(tp); From 36d8e82541c4be8f529dce9efbcefd504e085ccf Mon Sep 17 00:00:00 2001 From: hayeswang Date: Fri, 12 Sep 2014 11:35:12 +0800 Subject: [PATCH 049/172] r8169: fix setting rx vlan The setting should depend on the new features not the current one. Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index f3ce284e54f0..7a7860a17f69 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -1796,7 +1796,7 @@ static void __rtl8169_set_features(struct net_device *dev, else tp->cp_cmd &= ~RxChkSum; - if (dev->features & NETIF_F_HW_VLAN_CTAG_RX) + if (features & NETIF_F_HW_VLAN_CTAG_RX) tp->cp_cmd |= RxVlan; else tp->cp_cmd &= ~RxVlan; From 9a72c2da690d78e93cff24b9f616412508678dd5 Mon Sep 17 00:00:00 2001 From: Nikolay Aleksandrov Date: Fri, 12 Sep 2014 17:38:18 +0200 Subject: [PATCH 050/172] bonding: fix div by zero while enslaving and transmitting The problem is that the slave is first linked and slave_cnt is incremented afterwards leading to a div by zero in the modes that use it as a modulus. What happens is that in bond_start_xmit() bond_has_slaves() is used to evaluate further transmission and it becomes true after the slave is linked in, but when slave_cnt is used in the xmit path it is still 0, so fetch it once and transmit based on that. Since it is used only in round-robin and XOR modes, the fix is only for them. Thanks to Eric Dumazet for pointing out the fault in my first try to fix this. Call trace (took it out of net-next kernel, but it's the same with net): [46934.330038] divide error: 0000 [#1] SMP [46934.330041] Modules linked in: bonding(O) 9p fscache snd_hda_codec_generic crct10dif_pclmul [46934.330041] bond0: Enslaving eth1 as an active interface with an up link [46934.330051] ppdev joydev crc32_pclmul crc32c_intel 9pnet_virtio ghash_clmulni_intel snd_hda_intel 9pnet snd_hda_controller parport_pc serio_raw pcspkr snd_hda_codec parport virtio_balloon virtio_console snd_hwdep snd_pcm pvpanic i2c_piix4 snd_timer i2ccore snd soundcore virtio_blk virtio_net virtio_pci virtio_ring virtio ata_generic pata_acpi floppy [last unloaded: bonding] [46934.330053] CPU: 1 PID: 3382 Comm: ping Tainted: G O 3.17.0-rc4+ #27 [46934.330053] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [46934.330054] task: ffff88005aebf2c0 ti: ffff88005b728000 task.ti: ffff88005b728000 [46934.330059] RIP: 0010:[] [] bond_start_xmit+0x1c3/0x450 [bonding] [46934.330060] RSP: 0018:ffff88005b72b7f8 EFLAGS: 00010246 [46934.330060] RAX: 0000000000000679 RBX: ffff88004b077000 RCX: 000000000000002a [46934.330061] RDX: 0000000000000000 RSI: ffff88004b3f0500 RDI: ffff88004b077940 [46934.330061] RBP: ffff88005b72b830 R08: 00000000000000c0 R09: ffff88004a83e000 [46934.330062] R10: 000000000000ffff R11: ffff88004b1f12c0 R12: ffff88004b3f0500 [46934.330062] R13: ffff88004b3f0500 R14: 000000000000002a R15: ffff88004b077940 [46934.330063] FS: 00007fbd91a4c740(0000) GS:ffff88005f080000(0000) knlGS:0000000000000000 [46934.330064] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [46934.330064] CR2: 00007f803a8bb000 CR3: 000000004b2c9000 CR4: 00000000000406e0 [46934.330069] Stack: [46934.330071] ffffffff811e6169 00000000e772fa05 ffff88004b077000 ffff88004b3f0500 [46934.330072] ffffffff81d17d18 000000000000002a 0000000000000000 ffff88005b72b8a0 [46934.330073] ffffffff81620108 ffffffff8161fe0e ffff88005b72b8c4 ffff88005b302000 [46934.330073] Call Trace: [46934.330077] [] ? __kmalloc_node_track_caller+0x119/0x300 [46934.330084] [] dev_hard_start_xmit+0x188/0x410 [46934.330086] [] ? harmonize_features+0x2e/0x90 [46934.330088] [] __dev_queue_xmit+0x456/0x590 [46934.330089] [] dev_queue_xmit+0x10/0x20 [46934.330090] [] arp_xmit+0x22/0x60 [46934.330091] [] arp_send.part.16+0x30/0x40 [46934.330092] [] arp_solicit+0x115/0x2b0 [46934.330094] [] ? copy_skb_header+0x17/0xa0 [46934.330096] [] neigh_probe+0x4a/0x70 [46934.330097] [] __neigh_event_send+0xac/0x230 [46934.330098] [] neigh_resolve_output+0x13b/0x220 [46934.330100] [] ? ip_forward_options+0x1c0/0x1c0 [46934.330101] [] ip_finish_output+0x1f8/0x860 [46934.330102] [] ip_output+0x58/0x90 [46934.330103] [] ? __ip_local_out+0xa2/0xb0 [46934.330104] [] ip_local_out_sk+0x30/0x40 [46934.330105] [] ip_send_skb+0x16/0x50 [46934.330106] [] ip_push_pending_frames+0x33/0x40 [46934.330107] [] raw_sendmsg+0x88c/0xa30 [46934.330110] [] ? skb_recv_datagram+0x41/0x60 [46934.330111] [] ? raw_recvmsg+0xa9/0x1f0 [46934.330113] [] inet_sendmsg+0x74/0xc0 [46934.330114] [] ? inet_recvmsg+0x8b/0xb0 [46934.330115] bond0: Adding slave eth2 [46934.330116] [] sock_sendmsg+0x9c/0xe0 [46934.330118] [] ? move_addr_to_kernel.part.20+0x28/0x80 [46934.330121] [] ? might_fault+0x47/0x50 [46934.330122] [] ___sys_sendmsg+0x3a9/0x3c0 [46934.330125] [] ? n_tty_write+0x3aa/0x530 [46934.330127] [] ? __wake_up+0x44/0x50 [46934.330129] [] ? fsnotify+0x238/0x310 [46934.330130] [] __sys_sendmsg+0x51/0x90 [46934.330131] [] SyS_sendmsg+0x12/0x20 [46934.330134] [] system_call_fastpath+0x16/0x1b [46934.330144] Code: 48 8b 10 4c 89 ee 4c 89 ff e8 aa bc ff ff 31 c0 e9 1a ff ff ff 0f 1f 00 4c 89 ee 4c 89 ff e8 65 fb ff ff 31 d2 4c 89 ee 4c 89 ff b3 64 09 00 00 e8 02 bd ff ff 31 c0 e9 f2 fe ff ff 0f 1f 00 [46934.330146] RIP [] bond_start_xmit+0x1c3/0x450 [bonding] [46934.330146] RSP CC: Eric Dumazet CC: Andy Gospodarek CC: Jay Vosburgh CC: Veaceslav Falico Fixes: 278b208375 ("bonding: initial RCU conversion") Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 57912ee231cb..798ae69fb63c 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3659,8 +3659,14 @@ static int bond_xmit_roundrobin(struct sk_buff *skb, struct net_device *bond_dev else bond_xmit_slave_id(bond, skb, 0); } else { - slave_id = bond_rr_gen_slave_id(bond); - bond_xmit_slave_id(bond, skb, slave_id % bond->slave_cnt); + int slave_cnt = ACCESS_ONCE(bond->slave_cnt); + + if (likely(slave_cnt)) { + slave_id = bond_rr_gen_slave_id(bond); + bond_xmit_slave_id(bond, skb, slave_id % slave_cnt); + } else { + dev_kfree_skb_any(skb); + } } return NETDEV_TX_OK; @@ -3691,8 +3697,13 @@ static int bond_xmit_activebackup(struct sk_buff *skb, struct net_device *bond_d static int bond_xmit_xor(struct sk_buff *skb, struct net_device *bond_dev) { struct bonding *bond = netdev_priv(bond_dev); + int slave_cnt = ACCESS_ONCE(bond->slave_cnt); - bond_xmit_slave_id(bond, skb, bond_xmit_hash(bond, skb) % bond->slave_cnt); + if (likely(slave_cnt)) + bond_xmit_slave_id(bond, skb, + bond_xmit_hash(bond, skb) % slave_cnt); + else + dev_kfree_skb_any(skb); return NETDEV_TX_OK; } From 20adfa1a81af00bf2027644507ad4fa9cd2849cf Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Fri, 12 Sep 2014 16:26:16 -0400 Subject: [PATCH 051/172] bridge: Check if vlan filtering is enabled only once. The bridge code checks if vlan filtering is enabled on both ingress and egress. When the state flip happens, it is possible for the bridge to currently be forwarding packets and forwarding behavior becomes non-deterministic. Bridge may drop packets on some interfaces, but not others. This patch solves this by caching the filtered state of the packet into skb_cb on ingress. The skb_cb is guaranteed to not be over-written between the time packet entres bridge forwarding path and the time it leaves it. On egress, we can then check the cached state to see if we need to apply filtering information. Signed-off-by: Vladislav Yasevich Signed-off-by: David S. Miller --- net/bridge/br_private.h | 3 +++ net/bridge/br_vlan.c | 14 ++++++++++---- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 62a7fa2e3569..b6c04cbcfdc5 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -309,6 +309,9 @@ struct br_input_skb_cb { int igmp; int mrouters_only; #endif +#ifdef CONFIG_BRIDGE_VLAN_FILTERING + bool vlan_filtered; +#endif }; #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index e1bcd653899b..f645197b33d1 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -125,7 +125,8 @@ struct sk_buff *br_handle_vlan(struct net_bridge *br, { u16 vid; - if (!br->vlan_enabled) + /* If this packet was not filtered at input, let it pass */ + if (!BR_INPUT_SKB_CB(skb)->vlan_filtered) goto out; /* Vlan filter table must be configured at this point. The @@ -164,8 +165,10 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, /* If VLAN filtering is disabled on the bridge, all packets are * permitted. */ - if (!br->vlan_enabled) + if (!br->vlan_enabled) { + BR_INPUT_SKB_CB(skb)->vlan_filtered = false; return true; + } /* If there are no vlan in the permitted list, all packets are * rejected. @@ -173,6 +176,7 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, if (!v) goto drop; + BR_INPUT_SKB_CB(skb)->vlan_filtered = true; proto = br->vlan_proto; /* If vlan tx offload is disabled on bridge device and frame was @@ -251,7 +255,8 @@ bool br_allowed_egress(struct net_bridge *br, { u16 vid; - if (!br->vlan_enabled) + /* If this packet was not filtered at input, let it pass */ + if (!BR_INPUT_SKB_CB(skb)->vlan_filtered) return true; if (!v) @@ -270,7 +275,8 @@ bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid) struct net_bridge *br = p->br; struct net_port_vlans *v; - if (!br->vlan_enabled) + /* If filtering was disabled at input, let it pass. */ + if (!BR_INPUT_SKB_CB(skb)->vlan_filtered) return true; v = rcu_dereference(p->vlan_info); From 635126b7ca13a01d6322fbf7bdc5d1c738d26807 Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Fri, 12 Sep 2014 16:26:17 -0400 Subject: [PATCH 052/172] bridge: Allow clearing of pvid and untagged bitmap Currently, it is possible to modify the vlan filter configuration to add pvid or untagged support. For example: bridge vlan add vid 10 dev eth0 bridge vlan add vid 10 dev eth0 untagged pvid The second statement will modify vlan 10 to include untagged and pvid configuration. However, it is currently impossible to go backwards bridge vlan add vid 10 dev eth0 untagged pvid bridge vlan add vid 10 dev eth0 Here nothing happens. This patch correct this so that any modifiers not supplied are removed from the configuration. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller --- net/bridge/br_vlan.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index f645197b33d1..4b86738eca9a 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -27,9 +27,13 @@ static void __vlan_add_flags(struct net_port_vlans *v, u16 vid, u16 flags) { if (flags & BRIDGE_VLAN_INFO_PVID) __vlan_add_pvid(v, vid); + else + __vlan_delete_pvid(v, vid); if (flags & BRIDGE_VLAN_INFO_UNTAGGED) set_bit(vid, v->untagged_bitmap); + else + clear_bit(vid, v->untagged_bitmap); } static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags) From 0b70068e47e8f0c813a902dc3d6def601fd15acb Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Fri, 12 Sep 2014 22:17:23 +0200 Subject: [PATCH 053/172] mm: export symbol dependencies of is_zero_pfn() In order to make the static inline function is_zero_pfn() callable by modules, export its symbol dependencies 'zero_pfn' and (for s390 and mips) 'zero_page_mask'. We need this for KVM, as CONFIG_KVM is a tristate for all supported architectures except ARM and arm64, and testing a pfn whether it refers to the zero page is required to correctly distinguish the zero page from other special RAM ranges that may also have the PG_reserved bit set, but need to be treated as MMIO memory. Signed-off-by: Ard Biesheuvel Acked-by: Andrew Morton Signed-off-by: Paolo Bonzini --- arch/mips/mm/init.c | 1 + arch/s390/mm/init.c | 1 + mm/memory.c | 2 ++ 3 files changed, 4 insertions(+) diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 571aab064936..f42e35e42790 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -53,6 +53,7 @@ */ unsigned long empty_zero_page, zero_page_mask; EXPORT_SYMBOL_GPL(empty_zero_page); +EXPORT_SYMBOL(zero_page_mask); /* * Not static inline because used by IP27 special magic initialization code diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 0c1073ed1e84..c7235e01fd67 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -43,6 +43,7 @@ pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__((__aligned__(PAGE_SIZE))); unsigned long empty_zero_page, zero_page_mask; EXPORT_SYMBOL(empty_zero_page); +EXPORT_SYMBOL(zero_page_mask); static void __init setup_zero_pages(void) { diff --git a/mm/memory.c b/mm/memory.c index ab3537bcfed2..1fcf59a097b3 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -118,6 +118,8 @@ __setup("norandmaps", disable_randmaps); unsigned long zero_pfn __read_mostly; unsigned long highest_memmap_pfn __read_mostly; +EXPORT_SYMBOL(zero_pfn); + /* * CONFIG_MMU architectures set up ZERO_PAGE in their paging_init() */ From 85c8555ff07ef09261bd50d603cd4290cff5a8cc Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Fri, 12 Sep 2014 15:16:00 +0200 Subject: [PATCH 054/172] KVM: check for !is_zero_pfn() in kvm_is_mmio_pfn() Read-only memory ranges may be backed by the zero page, so avoid misidentifying it a a MMIO pfn. This fixes another issue I identified when testing QEMU+KVM_UEFI, where a read to an uninitialized emulated NOR flash brought in the zero page, but mapped as a read-write device region, because kvm_is_mmio_pfn() misidentifies it as a MMIO pfn due to its PG_reserved bit being set. Signed-off-by: Ard Biesheuvel Fixes: b88657674d39 ("ARM: KVM: user_mem_abort: support stage 2 MMIO page mapping") Signed-off-by: Paolo Bonzini --- virt/kvm/kvm_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 33712fb26eb1..96ec6226e4ab 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -110,7 +110,7 @@ static bool largepages_enabled = true; bool kvm_is_mmio_pfn(pfn_t pfn) { if (pfn_valid(pfn)) - return PageReserved(pfn_to_page(pfn)); + return !is_zero_pfn(pfn) && PageReserved(pfn_to_page(pfn)); return true; } From 95e8b10393f88a0db88d97e9d1953f01c854315a Mon Sep 17 00:00:00 2001 From: Mike Looijmans Date: Mon, 15 Sep 2014 12:06:33 +0200 Subject: [PATCH 055/172] net/phy: micrel: Disable asymmetric pause for KSZ9031 The KSZ9031 appears to suffer from the same hardware bug as described for the KSZ9021 in commit 32fcafbcd1c9f6c7013016a22a5369b4acb93577 ("net/phy: micrel: Disable asymmetric pause for KSZ9021") you have to unplug the cable and plug it back to get it to work. Remove the SUPPORTED_Asym_Pause flag for the KSZ9031 to fix this. Signed-off-by: Mike Looijmans Signed-off-by: David S. Miller --- drivers/net/phy/micrel.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index fd0ea7c50ee6..011dbda2b2f1 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -592,8 +592,7 @@ static struct phy_driver ksphy_driver[] = { .phy_id = PHY_ID_KSZ9031, .phy_id_mask = 0x00fffff0, .name = "Micrel KSZ9031 Gigabit PHY", - .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause - | SUPPORTED_Asym_Pause), + .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause), .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, .config_init = ksz9031_config_init, .config_aneg = genphy_config_aneg, From 7ce64c79c4decdeb1afe0bf2f6ef834b382871d1 Mon Sep 17 00:00:00 2001 From: "Alexander Y. Fomichev" Date: Mon, 15 Sep 2014 14:22:35 +0400 Subject: [PATCH 056/172] net: fix creation adjacent device symlinks __netdev_adjacent_dev_insert may add adjust device of different net namespace, without proper check it leads to emergence of broken sysfs links from/to devices in another namespace. Fix: rewrite netdev_adjacent_is_neigh_list macro as a function, move net_eq check into netdev_adjacent_is_neigh_list. (thanks David) related to: 4c75431ac3520631f1d9e74aa88407e6374dbbc4 Signed-off-by: Alexander Fomichev Signed-off-by: David S. Miller --- net/core/dev.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index ab9a16530c36..cf8a95f48cff 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4809,9 +4809,14 @@ static void netdev_adjacent_sysfs_del(struct net_device *dev, sysfs_remove_link(&(dev->dev.kobj), linkname); } -#define netdev_adjacent_is_neigh_list(dev, dev_list) \ - (dev_list == &dev->adj_list.upper || \ - dev_list == &dev->adj_list.lower) +static inline bool netdev_adjacent_is_neigh_list(struct net_device *dev, + struct net_device *adj_dev, + struct list_head *dev_list) +{ + return (dev_list == &dev->adj_list.upper || + dev_list == &dev->adj_list.lower) && + net_eq(dev_net(dev), dev_net(adj_dev)); +} static int __netdev_adjacent_dev_insert(struct net_device *dev, struct net_device *adj_dev, @@ -4841,7 +4846,7 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev, pr_debug("dev_hold for %s, because of link added from %s to %s\n", adj_dev->name, dev->name, adj_dev->name); - if (netdev_adjacent_is_neigh_list(dev, dev_list)) { + if (netdev_adjacent_is_neigh_list(dev, adj_dev, dev_list)) { ret = netdev_adjacent_sysfs_add(dev, adj_dev, dev_list); if (ret) goto free_adj; @@ -4862,7 +4867,7 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev, return 0; remove_symlinks: - if (netdev_adjacent_is_neigh_list(dev, dev_list)) + if (netdev_adjacent_is_neigh_list(dev, adj_dev, dev_list)) netdev_adjacent_sysfs_del(dev, adj_dev->name, dev_list); free_adj: kfree(adj); @@ -4895,8 +4900,7 @@ static void __netdev_adjacent_dev_remove(struct net_device *dev, if (adj->master) sysfs_remove_link(&(dev->dev.kobj), "master"); - if (netdev_adjacent_is_neigh_list(dev, dev_list) && - net_eq(dev_net(dev),dev_net(adj_dev))) + if (netdev_adjacent_is_neigh_list(dev, adj_dev, dev_list)) netdev_adjacent_sysfs_del(dev, adj_dev->name, dev_list); list_del_rcu(&adj->list); From fac7d2a3b8798f8b58004c74c4b37b9643b5897a Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Thu, 11 Sep 2014 22:51:30 +0200 Subject: [PATCH 057/172] brcmfmac: Fix memory leak and missing assignment. The function brcmf_enable_bw40_2g contains a memory leak. The function is also missing initialisation of one of the members of ch struct, which can lead to warning but this has no impact on result. Reviewed-by: Arend Van Spriel Reviewed-by: Franky (Zhenhui) Lin Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Daniel (Deognyoun) Kim Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 02fe706fc9ec..2e134a6231c1 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -5143,6 +5143,7 @@ static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg) ch.band = BRCMU_CHAN_BAND_2G; ch.bw = BRCMU_CHAN_BW_40; + ch.sb = BRCMU_CHAN_SB_NONE; ch.chnum = 0; cfg->d11inf.encchspec(&ch); @@ -5176,6 +5177,7 @@ static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg) brcmf_update_bw40_channel_flag(&band->channels[j], &ch); } + kfree(pbuf); } return err; } From f1d56039b58f6f786450a858b2c8d2459a3382cc Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Thu, 11 Sep 2014 22:51:31 +0200 Subject: [PATCH 058/172] brcmfmac: conditionally compile firmware protocol source code The host-interface can select which protocol implementation it needs. Selecting PCIe will include the msgbuf protocol and selecting USB and/or SDIO will include the bcdc protocol. The PCIe kconfig option assures the dependencies for msgbuf are met, ie. HAS_DMA. Reported-by: Geert Uytterhoeven Reviewed-by: Franky (Zhenhui) Lin Reviewed-by: Hante Meuleman Reviewed-by: Daniel (Deognyoun) Kim Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/Kconfig | 10 ++++++++++ drivers/net/wireless/brcm80211/brcmfmac/Makefile | 10 ++++++---- drivers/net/wireless/brcm80211/brcmfmac/bcdc.h | 7 +++++-- drivers/net/wireless/brcm80211/brcmfmac/msgbuf.h | 11 +++++++++-- 4 files changed, 30 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/brcm80211/Kconfig b/drivers/net/wireless/brcm80211/Kconfig index b8e2561ea645..fe3dc126b149 100644 --- a/drivers/net/wireless/brcm80211/Kconfig +++ b/drivers/net/wireless/brcm80211/Kconfig @@ -27,10 +27,17 @@ config BRCMFMAC one of the bus interface support. If you choose to build a module, it'll be called brcmfmac.ko. +config BRCMFMAC_PROTO_BCDC + bool + +config BRCMFMAC_PROTO_MSGBUF + bool + config BRCMFMAC_SDIO bool "SDIO bus interface support for FullMAC driver" depends on (MMC = y || MMC = BRCMFMAC) depends on BRCMFMAC + select BRCMFMAC_PROTO_BCDC select FW_LOADER default y ---help--- @@ -42,6 +49,7 @@ config BRCMFMAC_USB bool "USB bus interface support for FullMAC driver" depends on (USB = y || USB = BRCMFMAC) depends on BRCMFMAC + select BRCMFMAC_PROTO_BCDC select FW_LOADER ---help--- This option enables the USB bus interface support for Broadcom @@ -52,6 +60,8 @@ config BRCMFMAC_PCIE bool "PCIE bus interface support for FullMAC driver" depends on BRCMFMAC depends on PCI + depends on HAS_DMA + select BRCMFMAC_PROTO_MSGBUF select FW_LOADER ---help--- This option enables the PCIE bus interface support for Broadcom diff --git a/drivers/net/wireless/brcm80211/brcmfmac/Makefile b/drivers/net/wireless/brcm80211/brcmfmac/Makefile index c35adf4bc70b..90a977fe9a64 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/Makefile +++ b/drivers/net/wireless/brcm80211/brcmfmac/Makefile @@ -30,16 +30,18 @@ brcmfmac-objs += \ fwsignal.o \ p2p.o \ proto.o \ - bcdc.o \ - commonring.o \ - flowring.o \ - msgbuf.o \ dhd_common.o \ dhd_linux.o \ firmware.o \ feature.o \ btcoex.o \ vendor.o +brcmfmac-$(CONFIG_BRCMFMAC_PROTO_BCDC) += \ + bcdc.o +brcmfmac-$(CONFIG_BRCMFMAC_PROTO_MSGBUF) += \ + commonring.o \ + flowring.o \ + msgbuf.o brcmfmac-$(CONFIG_BRCMFMAC_SDIO) += \ dhd_sdio.o \ bcmsdh.o diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcdc.h b/drivers/net/wireless/brcm80211/brcmfmac/bcdc.h index 17e8c039ff32..6003179c0ceb 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/bcdc.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/bcdc.h @@ -16,9 +16,12 @@ #ifndef BRCMFMAC_BCDC_H #define BRCMFMAC_BCDC_H - +#ifdef CONFIG_BRCMFMAC_PROTO_BCDC int brcmf_proto_bcdc_attach(struct brcmf_pub *drvr); void brcmf_proto_bcdc_detach(struct brcmf_pub *drvr); - +#else +static inline int brcmf_proto_bcdc_attach(struct brcmf_pub *drvr) { return 0; } +static inline void brcmf_proto_bcdc_detach(struct brcmf_pub *drvr) {} +#endif #endif /* BRCMFMAC_BCDC_H */ diff --git a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.h b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.h index f901ae52bf2b..77a51b8c1e12 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.h @@ -15,6 +15,7 @@ #ifndef BRCMFMAC_MSGBUF_H #define BRCMFMAC_MSGBUF_H +#ifdef CONFIG_BRCMFMAC_PROTO_MSGBUF #define BRCMF_H2D_MSGRING_CONTROL_SUBMIT_MAX_ITEM 20 #define BRCMF_H2D_MSGRING_RXPOST_SUBMIT_MAX_ITEM 256 @@ -32,9 +33,15 @@ int brcmf_proto_msgbuf_rx_trigger(struct device *dev); +void brcmf_msgbuf_delete_flowring(struct brcmf_pub *drvr, u8 flowid); int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr); void brcmf_proto_msgbuf_detach(struct brcmf_pub *drvr); -void brcmf_msgbuf_delete_flowring(struct brcmf_pub *drvr, u8 flowid); - +#else +static inline int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr) +{ + return 0; +} +static inline void brcmf_proto_msgbuf_detach(struct brcmf_pub *drvr) {} +#endif #endif /* BRCMFMAC_MSGBUF_H */ From 8f2b45971b32824b830a544ed1d179215770b1eb Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Thu, 11 Sep 2014 22:51:32 +0200 Subject: [PATCH 059/172] brcmfmac: obtain ifp through wdev structure For P2P_DEVICE interface the function brcmf_cfg80211_update_proto_addr_mode() resulted in a crash, because it assumed wdev->netdev would be valid. The ifp should be obtained through the driver vif structure which contains the wireless_dev. Reviewed-by: Hante Meuleman Reviewed-by: Franky (Zhenhui) Lin Reviewed-by: Daniel (Deognyoun) Kim Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 2e134a6231c1..f3a9804988a6 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -497,8 +497,11 @@ brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable) static void brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev) { - struct net_device *ndev = wdev->netdev; - struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_vif *vif; + struct brcmf_if *ifp; + + vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); + ifp = vif->ifp; if ((wdev->iftype == NL80211_IFTYPE_ADHOC) || (wdev->iftype == NL80211_IFTYPE_AP) || From 87c4790330810fe5caf0172d9320cf24ef19cebe Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Fri, 12 Sep 2014 16:19:30 +0200 Subject: [PATCH 060/172] brcmfmac: handle IF event for P2P_DEVICE interface The firmware notifies about interface changes through the IF event which has a NO_IF flag that means host can ignore the event. This behaviour was introduced in the driver by: commit 2ee8382fc6c763c76396a6aaff77a27089eed3aa Author: Arend van Spriel Date: Sat Aug 10 12:27:24 2013 +0200 brcmfmac: ignore IF event if firmware indicates it It turns out that the IF event for the P2P_DEVICE also has this flag set, but the event should not be ignored in this scenario. The mentioned commit caused a regression in 3.12 kernel in creation of the P2P_DEVICE interface. Cc: # 3.14, 3.16 Reviewed-by: Hante Meuleman Reviewed-by: Franky (Zhenhui) Lin Reviewed-by: Daniel (Deognyoun) Kim Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/fweh.c | 12 +++++++++--- drivers/net/wireless/brcm80211/brcmfmac/fweh.h | 2 ++ 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c index 4f1daabc551b..44fc85f68f7a 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c @@ -185,7 +185,13 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr, ifevent->action, ifevent->ifidx, ifevent->bssidx, ifevent->flags, ifevent->role); - if (ifevent->flags & BRCMF_E_IF_FLAG_NOIF) { + /* The P2P Device interface event must not be ignored + * contrary to what firmware tells us. The only way to + * distinguish the P2P Device is by looking at the ifidx + * and bssidx received. + */ + if (!(ifevent->ifidx == 0 && ifevent->bssidx == 1) && + (ifevent->flags & BRCMF_E_IF_FLAG_NOIF)) { brcmf_dbg(EVENT, "event can be ignored\n"); return; } @@ -210,12 +216,12 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr, return; } - if (ifevent->action == BRCMF_E_IF_CHANGE) + if (ifp && ifevent->action == BRCMF_E_IF_CHANGE) brcmf_fws_reset_interface(ifp); err = brcmf_fweh_call_event_handler(ifp, emsg->event_code, emsg, data); - if (ifevent->action == BRCMF_E_IF_DEL) { + if (ifp && ifevent->action == BRCMF_E_IF_DEL) { brcmf_fws_del_interface(ifp); brcmf_del_if(drvr, ifevent->bssidx); } diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h index dd20b1862d44..cbf033f59109 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h @@ -172,6 +172,8 @@ enum brcmf_fweh_event_code { #define BRCMF_E_IF_ROLE_STA 0 #define BRCMF_E_IF_ROLE_AP 1 #define BRCMF_E_IF_ROLE_WDS 2 +#define BRCMF_E_IF_ROLE_P2P_GO 3 +#define BRCMF_E_IF_ROLE_P2P_CLIENT 4 /** * definitions for event packet validation. From d21ccfd0a60ea3dece3e1d142f52694abf87a0b1 Mon Sep 17 00:00:00 2001 From: Johannes Stezenbach Date: Fri, 12 Sep 2014 22:36:51 +0200 Subject: [PATCH 061/172] ath9k_htc: fix random decryption failure In v3.15 the driver stopped to accept network packets after successful authentification, which could be worked around by passing the nohwcrypt=1 module parameter. This was not reproducible by everyone, and showed random behaviour in some tests. It was caused by an uninitialized variable introduced in 4ed1a8d4a257 ("ath9k_htc: use ath9k_cmn_rx_accept") and used in 341b29b9cd2f ("ath9k_htc: use ath9k_cmn_rx_skb_postprocess"). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=78581 Fixes: 341b29b9cd2f ("ath9k_htc: use ath9k_cmn_rx_skb_postprocess") Signed-off-by: Johannes Stezenbach Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/htc_drv_txrx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c index bb86eb2ffc95..f0484b1b617e 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c @@ -978,7 +978,7 @@ static bool ath9k_rx_prepare(struct ath9k_htc_priv *priv, struct ath_hw *ah = common->ah; struct ath_htc_rx_status *rxstatus; struct ath_rx_status rx_stats; - bool decrypt_error; + bool decrypt_error = false; if (skb->len < HTC_RX_FRAME_HEADER_SIZE) { ath_err(common, "Corrupted RX frame, dropping (len: %d)\n", From c095f248e63ada504dd90c90baae673ae10ee3fe Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Mon, 15 Sep 2014 15:24:26 -0400 Subject: [PATCH 062/172] bridge: Fix br_should_learn to check vlan_enabled As Toshiaki Makita pointed out, the BRIDGE_INPUT_SKB_CB will not be initialized in br_should_learn() as that function is called only from br_handle_local_finish(). That is an input handler for link-local ethernet traffic so it perfectly correct to check br->vlan_enabled here. Reported-by: Toshiaki Makita Fixes: 20adfa1 bridge: Check if vlan filtering is enabled only once. Signed-off-by: Vladislav Yasevich Signed-off-by: David S. Miller --- net/bridge/br_vlan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index 4b86738eca9a..3ba57fcdcd13 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -280,7 +280,7 @@ bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid) struct net_port_vlans *v; /* If filtering was disabled at input, let it pass. */ - if (!BR_INPUT_SKB_CB(skb)->vlan_filtered) + if (!br->vlan_enabled) return true; v = rcu_dereference(p->vlan_info); From d6ce2628f32271c037a8c12e1994c9fba3a4af49 Mon Sep 17 00:00:00 2001 From: Hariprasad Shenai Date: Tue, 16 Sep 2014 02:58:46 +0530 Subject: [PATCH 063/172] cxgb4: Don't allocate adapter structure for all PF's commit 35b1de557970 ("rdma/cxgb4: Fixes cxgb4 probe failure in VM when PF is exposed through PCI Passthrough") moved the code to check for SR-IOV PF[0..3] much further down in init_one() past the point where we allocate a (struct adapter) for PF[0..3]. As a result, we left four of these on ever module remove. Fix: Allocate adapter structure only for PF4 Signed-off-by: Hariprasad Shenai Signed-off-by: David S. Miller --- .../net/ethernet/chelsio/cxgb4/cxgb4_main.c | 49 ++++++++++--------- 1 file changed, 27 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 8c34811a1128..e5be511a3c38 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -6478,6 +6478,7 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) struct port_info *pi; bool highdma = false; struct adapter *adapter = NULL; + void __iomem *regs; printk_once(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION); @@ -6494,19 +6495,35 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) goto out_release_regions; } + regs = pci_ioremap_bar(pdev, 0); + if (!regs) { + dev_err(&pdev->dev, "cannot map device registers\n"); + err = -ENOMEM; + goto out_disable_device; + } + + /* We control everything through one PF */ + func = SOURCEPF_GET(readl(regs + PL_WHOAMI)); + if (func != ent->driver_data) { + iounmap(regs); + pci_disable_device(pdev); + pci_save_state(pdev); /* to restore SR-IOV later */ + goto sriov; + } + if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { highdma = true; err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); if (err) { dev_err(&pdev->dev, "unable to obtain 64-bit DMA for " "coherent allocations\n"); - goto out_disable_device; + goto out_unmap_bar0; } } else { err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (err) { dev_err(&pdev->dev, "no usable DMA configuration\n"); - goto out_disable_device; + goto out_unmap_bar0; } } @@ -6518,7 +6535,7 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); if (!adapter) { err = -ENOMEM; - goto out_disable_device; + goto out_unmap_bar0; } adapter->workq = create_singlethread_workqueue("cxgb4"); @@ -6530,20 +6547,7 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) /* PCI device has been enabled */ adapter->flags |= DEV_ENABLED; - adapter->regs = pci_ioremap_bar(pdev, 0); - if (!adapter->regs) { - dev_err(&pdev->dev, "cannot map device registers\n"); - err = -ENOMEM; - goto out_free_adapter; - } - - /* We control everything through one PF */ - func = SOURCEPF_GET(readl(adapter->regs + PL_WHOAMI)); - if (func != ent->driver_data) { - pci_save_state(pdev); /* to restore SR-IOV later */ - goto sriov; - } - + adapter->regs = regs; adapter->pdev = pdev; adapter->pdev_dev = &pdev->dev; adapter->mbox = func; @@ -6560,7 +6564,8 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) err = t4_prep_adapter(adapter); if (err) - goto out_unmap_bar0; + goto out_free_adapter; + if (!is_t4(adapter->params.chip)) { s_qpp = QUEUESPERPAGEPF1 * adapter->fn; @@ -6577,14 +6582,14 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) dev_err(&pdev->dev, "Incorrect number of egress queues per page\n"); err = -EINVAL; - goto out_unmap_bar0; + goto out_free_adapter; } adapter->bar2 = ioremap_wc(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2)); if (!adapter->bar2) { dev_err(&pdev->dev, "cannot map device bar2 region\n"); err = -ENOMEM; - goto out_unmap_bar0; + goto out_free_adapter; } } @@ -6722,13 +6727,13 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) out_unmap_bar: if (!is_t4(adapter->params.chip)) iounmap(adapter->bar2); - out_unmap_bar0: - iounmap(adapter->regs); out_free_adapter: if (adapter->workq) destroy_workqueue(adapter->workq); kfree(adapter); + out_unmap_bar0: + iounmap(regs); out_disable_device: pci_disable_pcie_error_reporting(pdev); pci_disable_device(pdev); From 5d6be6a5d4864712832822efeb9c2d54e4063949 Mon Sep 17 00:00:00 2001 From: Anish Bhatt Date: Mon, 15 Sep 2014 13:45:20 -0700 Subject: [PATCH 064/172] scsi_netlink : Make SCSI_NETLINK dependent on NET instead of selecting NET Required for avoiding recursive dependencies in the Kconfig, brought out by fixing randconfig error for bnx2i/bnx2fc in the patch that follows. As suggested by Randy Dunlap Signed-off-by: Anish Bhatt Signed-off-by: David S. Miller --- drivers/scsi/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 18a3358eb1d4..756cddaf6c6d 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -43,7 +43,7 @@ config SCSI_DMA config SCSI_NETLINK bool default n - select NET + depends on NET config SCSI_PROC_FS bool "legacy /proc/scsi/ support" From 23a3c99201954d8ffe92e599e3c3039985280f1b Mon Sep 17 00:00:00 2001 From: Anish Bhatt Date: Mon, 15 Sep 2014 13:45:21 -0700 Subject: [PATCH 065/172] bnx2i/bnx2fc : fix randconfig error in next-20140909 Just like CNIC, tristate of these two modules is also dependent on IPV6. These need to be handled separately as they select CNIC, which can override tristate for CNIC from 'm' to 'y', which can cause build failures when ipv6 is compiled as a module even if CNIC's Kconfig will only 'm' or 'n' when ipv6 is compiled as a module. Fixes: c99d667e8527 ("cnic : Cleanup CONFIG_IPV6 & VLAN check") Signed-off-by: Anish Bhatt Signed-off-by: David S. Miller --- drivers/scsi/bnx2fc/Kconfig | 1 + drivers/scsi/bnx2i/Kconfig | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/scsi/bnx2fc/Kconfig b/drivers/scsi/bnx2fc/Kconfig index f245d543d7b1..02b0ba8e49e9 100644 --- a/drivers/scsi/bnx2fc/Kconfig +++ b/drivers/scsi/bnx2fc/Kconfig @@ -1,6 +1,7 @@ config SCSI_BNX2X_FCOE tristate "QLogic NetXtreme II FCoE support" depends on PCI + depends on (IPV6 || IPV6=n) select NETDEVICES select ETHERNET select NET_VENDOR_BROADCOM diff --git a/drivers/scsi/bnx2i/Kconfig b/drivers/scsi/bnx2i/Kconfig index 44ce54e536e5..ba30ff86d581 100644 --- a/drivers/scsi/bnx2i/Kconfig +++ b/drivers/scsi/bnx2i/Kconfig @@ -2,6 +2,7 @@ config SCSI_BNX2_ISCSI tristate "QLogic NetXtreme II iSCSI support" depends on NET depends on PCI + depends on (IPV6 || IPV6=n) select SCSI_ISCSI_ATTRS select NETDEVICES select ETHERNET From 95cd6f488d164de462a8279e802a0ad05c33d167 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 15 Sep 2014 17:20:42 -0700 Subject: [PATCH 066/172] scsi: fix build errors, SCSI_FC_ATTRS needs to depend on SCSI && NET Fix build errors when CONFIG_SCSI_NETLINK is enabled but CONFIG_NET is not enabled: drivers/built-in.o: In function `scsi_nl_rcv_msg': scsi_netlink.c:(.text+0x1850fa): undefined reference to `netlink_ack' scsi_netlink.c:(.text+0x185105): undefined reference to `skb_pull' scsi_netlink.c:(.text+0x18515d): undefined reference to `netlink_capable' drivers/built-in.o: In function `scsi_netlink_init': (.text+0x185244): undefined reference to `init_net' drivers/built-in.o: In function `scsi_netlink_init': (.text+0x185258): undefined reference to `__netlink_kernel_create' drivers/built-in.o: In function `scsi_netlink_exit': (.text+0x185291): undefined reference to `netlink_kernel_release' Signed-off-by: Randy Dunlap Tested-by: Anish Bhatt Signed-off-by: David S. Miller --- drivers/scsi/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 756cddaf6c6d..1d7e51394bfa 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -257,7 +257,7 @@ config SCSI_SPI_ATTRS config SCSI_FC_ATTRS tristate "FiberChannel Transport Attributes" - depends on SCSI + depends on SCSI && NET select SCSI_NETLINK help If you wish to export transport-specific information about From f92ee61982d6da15a9e49664ecd6405a15a2ee56 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Tue, 16 Sep 2014 10:08:40 +0200 Subject: [PATCH 067/172] xfrm: Generate blackhole routes only from route lookup functions Currently we genarate a blackhole route route whenever we have matching policies but can not resolve the states. Here we assume that dst_output() is called to kill the balckholed packets. Unfortunately this assumption is not true in all cases, so it is possible that these packets leave the system unwanted. We fix this by generating blackhole routes only from the route lookup functions, here we can guarantee a call to dst_output() afterwards. Fixes: 2774c131b1d ("xfrm: Handle blackhole route creation via afinfo.") Reported-by: Konstantinos Kolelis Signed-off-by: Steffen Klassert --- include/net/dst.h | 15 ++++++++++++++- net/ipv4/route.c | 6 +++--- net/ipv6/ip6_output.c | 4 ++-- net/xfrm/xfrm_policy.c | 18 +++++++++++++++++- 4 files changed, 36 insertions(+), 7 deletions(-) diff --git a/include/net/dst.h b/include/net/dst.h index 71c60f42be48..fa11c904d219 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -490,7 +490,16 @@ static inline struct dst_entry *xfrm_lookup(struct net *net, int flags) { return dst_orig; -} +} + +static inline struct dst_entry *xfrm_lookup_route(struct net *net, + struct dst_entry *dst_orig, + const struct flowi *fl, + struct sock *sk, + int flags) +{ + return dst_orig; +} static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst) { @@ -502,6 +511,10 @@ struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig, const struct flowi *fl, struct sock *sk, int flags); +struct dst_entry *xfrm_lookup_route(struct net *net, struct dst_entry *dst_orig, + const struct flowi *fl, struct sock *sk, + int flags); + /* skb attached with this dst needs transformation if dst->xfrm is valid */ static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst) { diff --git a/net/ipv4/route.c b/net/ipv4/route.c index eaa4b000c7b4..173e7ea54c70 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2265,9 +2265,9 @@ struct rtable *ip_route_output_flow(struct net *net, struct flowi4 *flp4, return rt; if (flp4->flowi4_proto) - rt = (struct rtable *) xfrm_lookup(net, &rt->dst, - flowi4_to_flowi(flp4), - sk, 0); + rt = (struct rtable *)xfrm_lookup_route(net, &rt->dst, + flowi4_to_flowi(flp4), + sk, 0); return rt; } diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 315a55d66079..0a3448b2888f 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1009,7 +1009,7 @@ struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6, if (final_dst) fl6->daddr = *final_dst; - return xfrm_lookup(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0); + return xfrm_lookup_route(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0); } EXPORT_SYMBOL_GPL(ip6_dst_lookup_flow); @@ -1041,7 +1041,7 @@ struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6, if (final_dst) fl6->daddr = *final_dst; - return xfrm_lookup(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0); + return xfrm_lookup_route(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0); } EXPORT_SYMBOL_GPL(ip6_sk_dst_lookup_flow); diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index beeed602aeb3..7505674c9faa 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -2138,7 +2138,7 @@ struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig, xfrm_pols_put(pols, drop_pols); XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTNOSTATES); - return make_blackhole(net, family, dst_orig); + return ERR_PTR(-EREMOTE); } err = -EAGAIN; @@ -2195,6 +2195,22 @@ struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig, } EXPORT_SYMBOL(xfrm_lookup); +/* Callers of xfrm_lookup_route() must ensure a call to dst_output(). + * Otherwise we may send out blackholed packets. + */ +struct dst_entry *xfrm_lookup_route(struct net *net, struct dst_entry *dst_orig, + const struct flowi *fl, + struct sock *sk, int flags) +{ + struct dst_entry *dst = xfrm_lookup(net, dst_orig, fl, sk, flags); + + if (IS_ERR(dst) && PTR_ERR(dst) == -EREMOTE) + return make_blackhole(net, dst_orig->ops->family, dst_orig); + + return dst; +} +EXPORT_SYMBOL(xfrm_lookup_route); + static inline int xfrm_secpath_reject(int idx, struct sk_buff *skb, const struct flowi *fl) { From b8c203b2d2fc961bafd53b41d5396bbcdec55998 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Tue, 16 Sep 2014 10:08:49 +0200 Subject: [PATCH 068/172] xfrm: Generate queueing routes only from route lookup functions Currently we genarate a queueing route if we have matching policies but can not resolve the states and the sysctl xfrm_larval_drop is disabled. Here we assume that dst_output() is called to kill the queued packets. Unfortunately this assumption is not true in all cases, so it is possible that these packets leave the system unwanted. We fix this by generating queueing routes only from the route lookup functions, here we can guarantee a call to dst_output() afterwards. Fixes: a0073fe18e71 ("xfrm: Add a state resolution packet queue") Reported-by: Konstantinos Kolelis Signed-off-by: Steffen Klassert --- include/net/dst.h | 1 + net/xfrm/xfrm_policy.c | 32 ++++++++++++++++++++++++-------- 2 files changed, 25 insertions(+), 8 deletions(-) diff --git a/include/net/dst.h b/include/net/dst.h index fa11c904d219..a8ae4e760778 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -480,6 +480,7 @@ void dst_init(void); /* Flags for xfrm_lookup flags argument. */ enum { XFRM_LOOKUP_ICMP = 1 << 0, + XFRM_LOOKUP_QUEUE = 1 << 1, }; struct flowi; diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 7505674c9faa..fdde51f4271a 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -39,6 +39,11 @@ #define XFRM_QUEUE_TMO_MAX ((unsigned)(60*HZ)) #define XFRM_MAX_QUEUE_LEN 100 +struct xfrm_flo { + struct dst_entry *dst_orig; + u8 flags; +}; + static DEFINE_SPINLOCK(xfrm_policy_afinfo_lock); static struct xfrm_policy_afinfo __rcu *xfrm_policy_afinfo[NPROTO] __read_mostly; @@ -1877,13 +1882,14 @@ static int xdst_queue_output(struct sock *sk, struct sk_buff *skb) } static struct xfrm_dst *xfrm_create_dummy_bundle(struct net *net, - struct dst_entry *dst, + struct xfrm_flo *xflo, const struct flowi *fl, int num_xfrms, u16 family) { int err; struct net_device *dev; + struct dst_entry *dst; struct dst_entry *dst1; struct xfrm_dst *xdst; @@ -1891,9 +1897,12 @@ static struct xfrm_dst *xfrm_create_dummy_bundle(struct net *net, if (IS_ERR(xdst)) return xdst; - if (net->xfrm.sysctl_larval_drop || num_xfrms <= 0) + if (!(xflo->flags & XFRM_LOOKUP_QUEUE) || + net->xfrm.sysctl_larval_drop || + num_xfrms <= 0) return xdst; + dst = xflo->dst_orig; dst1 = &xdst->u.dst; dst_hold(dst); xdst->route = dst; @@ -1935,7 +1944,7 @@ static struct flow_cache_object * xfrm_bundle_lookup(struct net *net, const struct flowi *fl, u16 family, u8 dir, struct flow_cache_object *oldflo, void *ctx) { - struct dst_entry *dst_orig = (struct dst_entry *)ctx; + struct xfrm_flo *xflo = (struct xfrm_flo *)ctx; struct xfrm_policy *pols[XFRM_POLICY_TYPE_MAX]; struct xfrm_dst *xdst, *new_xdst; int num_pols = 0, num_xfrms = 0, i, err, pol_dead; @@ -1976,7 +1985,8 @@ xfrm_bundle_lookup(struct net *net, const struct flowi *fl, u16 family, u8 dir, goto make_dummy_bundle; } - new_xdst = xfrm_resolve_and_create_bundle(pols, num_pols, fl, family, dst_orig); + new_xdst = xfrm_resolve_and_create_bundle(pols, num_pols, fl, family, + xflo->dst_orig); if (IS_ERR(new_xdst)) { err = PTR_ERR(new_xdst); if (err != -EAGAIN) @@ -2010,7 +2020,7 @@ xfrm_bundle_lookup(struct net *net, const struct flowi *fl, u16 family, u8 dir, /* We found policies, but there's no bundles to instantiate: * either because the policy blocks, has no transformations or * we could not build template (no xfrm_states).*/ - xdst = xfrm_create_dummy_bundle(net, dst_orig, fl, num_xfrms, family); + xdst = xfrm_create_dummy_bundle(net, xflo, fl, num_xfrms, family); if (IS_ERR(xdst)) { xfrm_pols_put(pols, num_pols); return ERR_CAST(xdst); @@ -2104,13 +2114,18 @@ struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig, } if (xdst == NULL) { + struct xfrm_flo xflo; + + xflo.dst_orig = dst_orig; + xflo.flags = flags; + /* To accelerate a bit... */ if ((dst_orig->flags & DST_NOXFRM) || !net->xfrm.policy_count[XFRM_POLICY_OUT]) goto nopol; flo = flow_cache_lookup(net, fl, family, dir, - xfrm_bundle_lookup, dst_orig); + xfrm_bundle_lookup, &xflo); if (flo == NULL) goto nopol; if (IS_ERR(flo)) { @@ -2202,7 +2217,8 @@ struct dst_entry *xfrm_lookup_route(struct net *net, struct dst_entry *dst_orig, const struct flowi *fl, struct sock *sk, int flags) { - struct dst_entry *dst = xfrm_lookup(net, dst_orig, fl, sk, flags); + struct dst_entry *dst = xfrm_lookup(net, dst_orig, fl, sk, + flags | XFRM_LOOKUP_QUEUE); if (IS_ERR(dst) && PTR_ERR(dst) == -EREMOTE) return make_blackhole(net, dst_orig->ops->family, dst_orig); @@ -2476,7 +2492,7 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family) skb_dst_force(skb); - dst = xfrm_lookup(net, skb_dst(skb), &fl, NULL, 0); + dst = xfrm_lookup(net, skb_dst(skb), &fl, NULL, XFRM_LOOKUP_QUEUE); if (IS_ERR(dst)) { res = 0; dst = NULL; From 929a031dfd62aae34bf8e728f712e6751e416d1f Mon Sep 17 00:00:00 2001 From: hayeswang Date: Tue, 16 Sep 2014 11:40:47 +0800 Subject: [PATCH 069/172] r8169: adjust __rtl8169_set_features Remove the "changed" test in __rtl8169_set_features(). Instead, do simple test in rtl8169_set_features(). Set the RxChkSum and RxVlan through __rtl8169_set_features() in rtl_open(). Signed-off-by: Francois Romieu Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 74 +++++++++++++--------------- 1 file changed, 34 insertions(+), 40 deletions(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 7a7860a17f69..ef2cee5de62b 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -1783,33 +1783,31 @@ static void __rtl8169_set_features(struct net_device *dev, netdev_features_t features) { struct rtl8169_private *tp = netdev_priv(dev); - netdev_features_t changed = features ^ dev->features; void __iomem *ioaddr = tp->mmio_addr; + u32 rx_config; - if (!(changed & (NETIF_F_RXALL | NETIF_F_RXCSUM | - NETIF_F_HW_VLAN_CTAG_RX))) - return; + rx_config = RTL_R32(RxConfig); + if (features & NETIF_F_RXALL) + rx_config |= (AcceptErr | AcceptRunt); + else + rx_config &= ~(AcceptErr | AcceptRunt); - if (changed & (NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_RX)) { - if (features & NETIF_F_RXCSUM) - tp->cp_cmd |= RxChkSum; - else - tp->cp_cmd &= ~RxChkSum; + RTL_W32(RxConfig, rx_config); - if (features & NETIF_F_HW_VLAN_CTAG_RX) - tp->cp_cmd |= RxVlan; - else - tp->cp_cmd &= ~RxVlan; + if (features & NETIF_F_RXCSUM) + tp->cp_cmd |= RxChkSum; + else + tp->cp_cmd &= ~RxChkSum; - RTL_W16(CPlusCmd, tp->cp_cmd); - RTL_R16(CPlusCmd); - } - if (changed & NETIF_F_RXALL) { - int tmp = (RTL_R32(RxConfig) & ~(AcceptErr | AcceptRunt)); - if (features & NETIF_F_RXALL) - tmp |= (AcceptErr | AcceptRunt); - RTL_W32(RxConfig, tmp); - } + if (features & NETIF_F_HW_VLAN_CTAG_RX) + tp->cp_cmd |= RxVlan; + else + tp->cp_cmd &= ~RxVlan; + + tp->cp_cmd |= RTL_R16(CPlusCmd) & ~(RxVlan | RxChkSum); + + RTL_W16(CPlusCmd, tp->cp_cmd); + RTL_R16(CPlusCmd); } static int rtl8169_set_features(struct net_device *dev, @@ -1817,8 +1815,11 @@ static int rtl8169_set_features(struct net_device *dev, { struct rtl8169_private *tp = netdev_priv(dev); + features &= NETIF_F_RXALL | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_RX; + rtl_lock_work(tp); - __rtl8169_set_features(dev, features); + if (features ^ dev->features); + __rtl8169_set_features(dev, features); rtl_unlock_work(tp); return 0; @@ -6707,12 +6708,7 @@ static int rtl_open(struct net_device *dev) rtl8169_init_phy(dev, tp); - if (dev->features & NETIF_F_HW_VLAN_CTAG_RX) - tp->cp_cmd |= RxVlan; - else - tp->cp_cmd &= ~RxVlan; - - RTL_W16(CPlusCmd, tp->cp_cmd); + __rtl8169_set_features(dev, dev->features); rtl_pll_power_up(tp); @@ -7123,8 +7119,7 @@ static void rtl_hw_initialize(struct rtl8169_private *tp) } } -static int -rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) +static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data; const unsigned int region = cfg->region; @@ -7199,7 +7194,7 @@ rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_mwi_2; } - tp->cp_cmd = RxChkSum; + tp->cp_cmd = 0; if ((sizeof(dma_addr_t) > 4) && !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && use_dac) { @@ -7240,13 +7235,6 @@ rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_master(pdev); - /* - * Pretend we are using VLANs; This bypasses a nasty bug where - * Interrupts stop flowing on high load on 8110SCd controllers. - */ - if (tp->mac_version == RTL_GIGA_MAC_VER_05) - tp->cp_cmd |= RxVlan; - rtl_init_mdio_ops(tp); rtl_init_pll_power_ops(tp); rtl_init_jumbo_ops(tp); @@ -7307,8 +7295,14 @@ rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | NETIF_F_HIGHDMA; + tp->cp_cmd |= RxChkSum | RxVlan; + + /* + * Pretend we are using VLANs; This bypasses a nasty bug where + * Interrupts stop flowing on high load on 8110SCd controllers. + */ if (tp->mac_version == RTL_GIGA_MAC_VER_05) - /* 8110SCd requires hardware Rx VLAN - disallow toggling */ + /* Disallow toggling */ dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX; if (tp->txd_version == RTL_TD_0) From dda3b191eb6c5a56d443723dcb71ade60d97c04f Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Fri, 12 Sep 2014 21:49:28 +0200 Subject: [PATCH 070/172] net: rfkill: gpio: Enable module auto-loading for ACPI based switches For the ACPI based switches the MODULE_DEVICE_TABLE is missing to export the entries for module auto-loading. Signed-off-by: Marcel Holtmann Signed-off-by: John W. Linville --- net/rfkill/rfkill-gpio.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c index 02a86a27fd84..5fa54dd78e25 100644 --- a/net/rfkill/rfkill-gpio.c +++ b/net/rfkill/rfkill-gpio.c @@ -163,6 +163,7 @@ static const struct acpi_device_id rfkill_acpi_match[] = { { "LNV4752", RFKILL_TYPE_GPS }, { }, }; +MODULE_DEVICE_TABLE(acpi, rfkill_acpi_match); #endif static struct platform_driver rfkill_gpio_driver = { From f650fb456f2079b762c131a11397c0a966e2bfe4 Mon Sep 17 00:00:00 2001 From: Edward Cree Date: Tue, 16 Sep 2014 17:05:21 +0100 Subject: [PATCH 071/172] sfc: fix addr_list_lock spinlock use before init Reported by Nikolay Aleksandrov. In efx_init_port() we call efx_mac_reconfigure() to work around a Falcon/A1 limitation, and this calls efx_{arch}_filter_sync_rx_mode(), which takes the addr_list_lock; but this lock is uninitialised, because we haven't called register_netdevice() yet. So, in efx_farch_filter_sync_rx_mode(), check efx_dev_registered() before doing anything else. The EF10 equivalent, efx_ef10_filter_sync_rx_mode(), already has the corresponding check. Signed-off-by: Edward Cree Tested-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/ethernet/sfc/farch.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c index 0537381cd2f6..6859437b59fb 100644 --- a/drivers/net/ethernet/sfc/farch.c +++ b/drivers/net/ethernet/sfc/farch.c @@ -2933,6 +2933,9 @@ void efx_farch_filter_sync_rx_mode(struct efx_nic *efx) u32 crc; int bit; + if (!efx_dev_registered(efx)) + return; + netif_addr_lock_bh(net_dev); efx->unicast_filter = !(net_dev->flags & IFF_PROMISC); From 6a38792ca8a5da28f65dc42eeb73d9a431f8d0fd Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 16 Sep 2014 13:47:41 -0700 Subject: [PATCH 072/172] scsi: use 'depends' instead of 'select' for SCSI_FC_ATTRS There are other kconfig symbols which use SCSI_FC_ATTRS. In order to maintain sanity and prevent kconfig warnings, change all of these from using 'select' to using 'depends on' so that proper symbol dependencies will be honored and circular depends problems will be avoided. This fixes kconfig warnings and build errors: warning: (LIBFC && SCSI_IBMVFC && SCSI_QLA_FC && SCSI_LPFC && ZFCP && SCSI_BFA_FC && SCSI_CHELSIO_FCOE && FUSION_FC) selects SCSI_FC_ATTRS which has unmet direct dependencies (SCSI && NET) drivers/scsi/scsi_transport_fc.c: In function 'fc_host_post_event': drivers/scsi/scsi_transport_fc.c:543:7: error: 'scsi_nl_sock' undeclared (first use in this function) drivers/scsi/scsi_transport_fc.c: In function 'fc_host_post_vendor_event': drivers/scsi/scsi_transport_fc.c:611:7: error: 'scsi_nl_sock' undeclared (first use in this function) Reported-by: Fengguang Wu [0-day test robot] Signed-off-by: Randy Dunlap Signed-off-by: David S. Miller --- drivers/message/fusion/Kconfig | 2 +- drivers/scsi/Kconfig | 10 +++++----- drivers/scsi/csiostor/Kconfig | 2 +- drivers/scsi/qla2xxx/Kconfig | 2 +- 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/message/fusion/Kconfig b/drivers/message/fusion/Kconfig index a34a11d2fef2..63ca9841db10 100644 --- a/drivers/message/fusion/Kconfig +++ b/drivers/message/fusion/Kconfig @@ -29,7 +29,7 @@ config FUSION_SPI config FUSION_FC tristate "Fusion MPT ScsiHost drivers for FC" depends on PCI && SCSI - select SCSI_FC_ATTRS + depends on SCSI_FC_ATTRS ---help--- SCSI HOST support for a Fiber Channel host adapters. diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 1d7e51394bfa..b7450122837d 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -585,7 +585,7 @@ config HYPERV_STORAGE config LIBFC tristate "LibFC module" - select SCSI_FC_ATTRS + depends on SCSI_FC_ATTRS select CRC32 ---help--- Fibre Channel library module @@ -816,7 +816,7 @@ config SCSI_IBMVSCSI config SCSI_IBMVFC tristate "IBM Virtual FC support" depends on PPC_PSERIES && SCSI - select SCSI_FC_ATTRS + depends on SCSI_FC_ATTRS help This is the IBM POWER Virtual FC Client @@ -1266,7 +1266,7 @@ source "drivers/scsi/qla4xxx/Kconfig" config SCSI_LPFC tristate "Emulex LightPulse Fibre Channel Support" depends on PCI && SCSI - select SCSI_FC_ATTRS + depends on SCSI_FC_ATTRS select CRC_T10DIF help This lpfc driver supports the Emulex LightPulse @@ -1676,7 +1676,7 @@ config SCSI_SUNESP config ZFCP tristate "FCP host bus adapter driver for IBM eServer zSeries" depends on S390 && QDIO && SCSI - select SCSI_FC_ATTRS + depends on SCSI_FC_ATTRS help If you want to access SCSI devices attached to your IBM eServer zSeries by means of Fibre Channel interfaces say Y. @@ -1704,7 +1704,7 @@ config SCSI_PM8001 config SCSI_BFA_FC tristate "Brocade BFA Fibre Channel Support" depends on PCI && SCSI - select SCSI_FC_ATTRS + depends on SCSI_FC_ATTRS help This bfa driver supports all Brocade PCIe FC/FCOE host adapters. diff --git a/drivers/scsi/csiostor/Kconfig b/drivers/scsi/csiostor/Kconfig index 4d03b032aa10..7c7e5085968b 100644 --- a/drivers/scsi/csiostor/Kconfig +++ b/drivers/scsi/csiostor/Kconfig @@ -1,7 +1,7 @@ config SCSI_CHELSIO_FCOE tristate "Chelsio Communications FCoE support" depends on PCI && SCSI - select SCSI_FC_ATTRS + depends on SCSI_FC_ATTRS select FW_LOADER help This driver supports FCoE Offload functionality over diff --git a/drivers/scsi/qla2xxx/Kconfig b/drivers/scsi/qla2xxx/Kconfig index 23d607218ae8..7d65776a1df5 100644 --- a/drivers/scsi/qla2xxx/Kconfig +++ b/drivers/scsi/qla2xxx/Kconfig @@ -1,7 +1,7 @@ config SCSI_QLA_FC tristate "QLogic QLA2XXX Fibre Channel Support" depends on PCI && SCSI - select SCSI_FC_ATTRS + depends on SCSI_FC_ATTRS select FW_LOADER ---help--- This qla2xxx driver supports all QLogic Fibre Channel From 961a23788c3448eec7906bd74c64c01c54fba80e Mon Sep 17 00:00:00 2001 From: Aravind Gopalakrishnan Date: Tue, 16 Sep 2014 14:58:04 -0500 Subject: [PATCH 073/172] hwmon: (fam15h_power) Make actual power reporting conditional power1_input should only be reported for Fam15h, Models 00h-0fh So, introduce a is_visible function to take care of this. As suggested by Guenter here: http://marc.info/?l=linux-kernel&m=141038145616437&w=2 Suggested-by: Guenter Roeck Fixes: 22e32f4f5777 ('x86,AMD: Power driver support for AMD's family 16h processors') Signed-off-by: Aravind Gopalakrishnan Signed-off-by: Guenter Roeck --- drivers/hwmon/fam15h_power.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index 4a7cbfad1d74..4ee0126e02d6 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -93,13 +93,29 @@ static ssize_t show_power_crit(struct device *dev, } static DEVICE_ATTR(power1_crit, S_IRUGO, show_power_crit, NULL); +static umode_t fam15h_power_is_visible(struct kobject *kobj, + struct attribute *attr, + int index) +{ + /* power1_input is only reported for Fam15h, Models 00h-0fh */ + if (attr == &dev_attr_power1_input.attr && + (boot_cpu_data.x86 != 0x15 || boot_cpu_data.x86_model > 0xf)) + return 0; + + return attr->mode; +} + static struct attribute *fam15h_power_attrs[] = { &dev_attr_power1_input.attr, &dev_attr_power1_crit.attr, NULL }; -ATTRIBUTE_GROUPS(fam15h_power); +static const struct attribute_group fam15h_power_group = { + .attrs = fam15h_power_attrs, + .is_visible = fam15h_power_is_visible, +}; +__ATTRIBUTE_GROUPS(fam15h_power); static bool fam15h_power_is_internal_node0(struct pci_dev *f4) { From 0a0039ad541d6ecdb4028e77ac6eae49a36af82b Mon Sep 17 00:00:00 2001 From: Aravind Gopalakrishnan Date: Tue, 16 Sep 2014 14:58:16 -0500 Subject: [PATCH 074/172] hwmon: (fam15h_power) Add support for two more processors Fam16h,M30h(Mullins) and Fam15hM30h(Kaveri) processors can report 'power_crit' value. So, adding their respective device ids. Signed-off-by: Aravind Gopalakrishnan Signed-off-by: Guenter Roeck --- drivers/hwmon/fam15h_power.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index 4ee0126e02d6..fcdbde4ec692 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -232,7 +232,9 @@ static int fam15h_power_probe(struct pci_dev *pdev, static const struct pci_device_id fam15h_power_id_table[] = { { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M30H_NB_F4) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_NB_F4) }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) }, {} }; MODULE_DEVICE_TABLE(pci, fam15h_power_id_table); From 3e1199dcad004a40b55297a4736ccd1b9b81a952 Mon Sep 17 00:00:00 2001 From: Milosz Tanski Date: Wed, 13 Aug 2014 12:58:26 -0400 Subject: [PATCH 075/172] FS-Cache: refcount becomes corrupt under vma pressure. In rare cases under heavy VMA pressure the ref count for a fscache cookie becomes corrupt. In this case we decrement ref count even if we fail before incrementing the refcount. FS-Cache: Assertion failed bnode-eca5f9c6/syslog 0 > 0 is false ------------[ cut here ]------------ kernel BUG at fs/fscache/cookie.c:519! invalid opcode: 0000 [#1] SMP Call Trace: [] __fscache_relinquish_cookie+0x50/0x220 [fscache] [] ceph_fscache_unregister_inode_cookie+0x3e/0x50 [ceph] [] ceph_destroy_inode+0x33/0x200 [ceph] [] ? __fsnotify_inode_delete+0xe/0x10 [] destroy_inode+0x3c/0x70 [] evict+0x111/0x180 [] iput+0x103/0x190 [] __dentry_kill+0x1c8/0x220 [] shrink_dentry_list+0xf1/0x250 [] prune_dcache_sb+0x4c/0x60 [] super_cache_scan+0xff/0x170 [] shrink_slab_node+0x140/0x2c0 [] shrink_slab+0x8a/0x130 [] balance_pgdat+0x3e2/0x5d0 [] kswapd+0x16a/0x4a0 [] ? __wake_up_sync+0x20/0x20 [] ? balance_pgdat+0x5d0/0x5d0 [] kthread+0xc9/0xe0 [] ? ftrace_raw_event_xen_mmu_release_ptpage+0x70/0x90 [] ? flush_kthread_worker+0xb0/0xb0 [] ret_from_fork+0x7c/0xb0 [] ? flush_kthread_worker+0xb0/0xb0 RIP [] __fscache_disable_cookie+0x1db/0x210 [fscache] RSP ---[ end trace 254d0d7c74a01f25 ]--- Signed-off-by: Milosz Tanski Signed-off-by: David Howells --- fs/fscache/page.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/fscache/page.c b/fs/fscache/page.c index 781ac7b0b53e..de33b3fccca6 100644 --- a/fs/fscache/page.c +++ b/fs/fscache/page.c @@ -198,7 +198,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie) { struct fscache_operation *op; struct fscache_object *object; - bool wake_cookie; + bool wake_cookie = false; _enter("%p", cookie); @@ -228,15 +228,16 @@ int __fscache_attr_changed(struct fscache_cookie *cookie) __fscache_use_cookie(cookie); if (fscache_submit_exclusive_op(object, op) < 0) - goto nobufs; + goto nobufs_dec; spin_unlock(&cookie->lock); fscache_stat(&fscache_n_attr_changed_ok); fscache_put_operation(op); _leave(" = 0"); return 0; -nobufs: +nobufs_dec: wake_cookie = __fscache_unuse_cookie(cookie); +nobufs: spin_unlock(&cookie->lock); kfree(op); if (wake_cookie) From 696382f938d22597f4945865ed8e3f25e240cd41 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 27 Aug 2014 15:06:20 +0100 Subject: [PATCH 076/172] cachefiles: remove two unused pagevecs. These two have been unused since commit c4d6d8dbf335c7fa47341654a37c53a512b519bb CacheFiles: Fix the marking of cached pages in 3.8. Signed-off-by: NeilBrown Signed-off-by: David Howells --- fs/cachefiles/rdwr.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c index 4b1fb5ca65b8..25e745b8eb1b 100644 --- a/fs/cachefiles/rdwr.c +++ b/fs/cachefiles/rdwr.c @@ -151,7 +151,6 @@ static void cachefiles_read_copier(struct fscache_operation *_op) struct cachefiles_one_read *monitor; struct cachefiles_object *object; struct fscache_retrieval *op; - struct pagevec pagevec; int error, max; op = container_of(_op, struct fscache_retrieval, op); @@ -160,8 +159,6 @@ static void cachefiles_read_copier(struct fscache_operation *_op) _enter("{ino=%lu}", object->backer->d_inode->i_ino); - pagevec_init(&pagevec, 0); - max = 8; spin_lock_irq(&object->work_lock); @@ -396,7 +393,6 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op, { struct cachefiles_object *object; struct cachefiles_cache *cache; - struct pagevec pagevec; struct inode *inode; sector_t block0, block; unsigned shift; @@ -427,8 +423,6 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op, op->op.flags |= FSCACHE_OP_ASYNC; op->op.processor = cachefiles_read_copier; - pagevec_init(&pagevec, 0); - /* we assume the absence or presence of the first block is a good * enough indication for the page as a whole * - TODO: don't use bmap() for this as it is _not_ actually good From e2cf1f1cc7636bd860e47cd0ad6194da8975f8b5 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 17 Sep 2014 23:28:38 +0100 Subject: [PATCH 077/172] CacheFiles: Handle rename2 Not all filesystems now provide the rename i_op - ext4 for one - but rather provide the rename2 i_op. CacheFiles checks that the filesystem has rename and so will reject ext4 now with EPERM: CacheFiles: Failed to register: -1 Fix this by checking for rename2 as an alternative. The call to vfs_rename() actually handles selection of the appropriate function, so we needn't worry about that. Turning on debugging shows: [cachef] ==> cachefiles_get_directory(,,cache) [cachef] subdir -> ffff88000b22b778 positive [cachef] <== cachefiles_get_directory() = -1 [check] where -1 is EPERM. Signed-off-by: David Howells --- fs/cachefiles/namei.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c index 5bf2b41e66d3..83e9c94ca2cf 100644 --- a/fs/cachefiles/namei.c +++ b/fs/cachefiles/namei.c @@ -779,7 +779,8 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache, !subdir->d_inode->i_op->lookup || !subdir->d_inode->i_op->mkdir || !subdir->d_inode->i_op->create || - !subdir->d_inode->i_op->rename || + (!subdir->d_inode->i_op->rename && + !subdir->d_inode->i_op->rename2) || !subdir->d_inode->i_op->rmdir || !subdir->d_inode->i_op->unlink) goto check_error; From a7380db5f0d6dd94981e73da08d8fa863ee72235 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Tue, 9 Sep 2014 17:31:08 +0300 Subject: [PATCH 078/172] can: c_can_platform: fix parameters of c_can_hw_raminit_ti() Pass the correct 'mask' and 'value' bits to c_can_hw_raminit_wait_ti(). They seem to have been swapped in the usage instances. Reported-by: Jay Schroeder Signed-off-by: Roger Quadros Cc: linux-stable Signed-off-by: Marc Kleine-Budde --- drivers/net/can/c_can/c_can_platform.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c index 109cb44291f5..fb279d6ae484 100644 --- a/drivers/net/can/c_can/c_can_platform.c +++ b/drivers/net/can/c_can/c_can_platform.c @@ -97,14 +97,14 @@ static void c_can_hw_raminit_ti(const struct c_can_priv *priv, bool enable) ctrl |= CAN_RAMINIT_DONE_MASK(priv->instance); writel(ctrl, priv->raminit_ctrlreg); ctrl &= ~CAN_RAMINIT_DONE_MASK(priv->instance); - c_can_hw_raminit_wait_ti(priv, ctrl, mask); + c_can_hw_raminit_wait_ti(priv, mask, ctrl); if (enable) { /* Set start bit and wait for the done bit. */ ctrl |= CAN_RAMINIT_START_MASK(priv->instance); writel(ctrl, priv->raminit_ctrlreg); ctrl |= CAN_RAMINIT_DONE_MASK(priv->instance); - c_can_hw_raminit_wait_ti(priv, ctrl, mask); + c_can_hw_raminit_wait_ti(priv, mask, ctrl); } spin_unlock(&raminit_lock); } From 4be0015c955a9a6e26395dbaba4bfdedf8f755ca Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Tue, 16 Sep 2014 10:05:41 +0200 Subject: [PATCH 079/172] can: peak_pci: add PCI ID definition pcie card variant Add PCI ID definition for the single channel PCAN ExpressCard 34 adapter. Due to the subsystem id evaluation the correct number of channels (here 1) is created at initialization time. Tested including the LED functionality. Signed-off-by: Oliver Hartkopp Acked-by: Stephane Grosjean Signed-off-by: Marc Kleine-Budde --- drivers/net/can/sja1000/peak_pci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/sja1000/peak_pci.c b/drivers/net/can/sja1000/peak_pci.c index 7a85590fefb9..e5fac368068a 100644 --- a/drivers/net/can/sja1000/peak_pci.c +++ b/drivers/net/can/sja1000/peak_pci.c @@ -70,6 +70,8 @@ struct peak_pci_chan { #define PEAK_PC_104P_DEVICE_ID 0x0006 /* PCAN-PC/104+ cards */ #define PEAK_PCI_104E_DEVICE_ID 0x0007 /* PCAN-PCI/104 Express cards */ #define PEAK_MPCIE_DEVICE_ID 0x0008 /* The miniPCIe slot cards */ +#define PEAK_PCIE_OEM_ID 0x0009 /* PCAN-PCI Express OEM */ +#define PEAK_PCIEC34_DEVICE_ID 0x000A /* PCAN-PCI Express 34 (one channel) */ #define PEAK_PCI_CHAN_MAX 4 @@ -87,6 +89,7 @@ static const struct pci_device_id peak_pci_tbl[] = { {PEAK_PCI_VENDOR_ID, PEAK_CPCI_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, #ifdef CONFIG_CAN_PEAK_PCIEC {PEAK_PCI_VENDOR_ID, PEAK_PCIEC_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, + {PEAK_PCI_VENDOR_ID, PEAK_PCIEC34_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, #endif {0,} }; @@ -653,7 +656,8 @@ static int peak_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) * This must be done *before* register_sja1000dev() but * *after* devices linkage */ - if (pdev->device == PEAK_PCIEC_DEVICE_ID) { + if (pdev->device == PEAK_PCIEC_DEVICE_ID || + pdev->device == PEAK_PCIEC34_DEVICE_ID) { err = peak_pciec_probe(pdev, dev); if (err) { dev_err(&pdev->dev, From c32fe4ad3e4861b2bfa1f44114c564935a123dda Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Tue, 16 Sep 2014 12:39:28 +0200 Subject: [PATCH 080/172] can: flexcan: mark TX mailbox as TX_INACTIVE This patch fixes the initialization of the TX mailbox. It is now correctly initialized as TX_INACTIVE not RX_EMPTY. Cc: linux-stable Signed-off-by: Marc Kleine-Budde --- drivers/net/can/flexcan.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 630c7bf032a8..76dcbca6c80c 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -136,6 +136,17 @@ /* FLEXCAN message buffers */ #define FLEXCAN_MB_CNT_CODE(x) (((x) & 0xf) << 24) +#define FLEXCAN_MB_CODE_RX_INACTIVE (0x0 << 24) +#define FLEXCAN_MB_CODE_RX_EMPTY (0x4 << 24) +#define FLEXCAN_MB_CODE_RX_FULL (0x2 << 24) +#define FLEXCAN_MB_CODE_RX_OVERRRUN (0x6 << 24) +#define FLEXCAN_MB_CODE_RX_RANSWER (0xa << 24) + +#define FLEXCAN_MB_CODE_TX_INACTIVE (0x8 << 24) +#define FLEXCAN_MB_CODE_TX_ABORT (0x9 << 24) +#define FLEXCAN_MB_CODE_TX_DATA (0xc << 24) +#define FLEXCAN_MB_CODE_TX_TANSWER (0xe << 24) + #define FLEXCAN_MB_CNT_SRR BIT(22) #define FLEXCAN_MB_CNT_IDE BIT(21) #define FLEXCAN_MB_CNT_RTR BIT(20) @@ -867,8 +878,8 @@ static int flexcan_chip_start(struct net_device *dev) netdev_dbg(dev, "%s: writing ctrl=0x%08x", __func__, reg_ctrl); flexcan_write(reg_ctrl, ®s->ctrl); - /* Abort any pending TX, mark Mailbox as INACTIVE */ - flexcan_write(FLEXCAN_MB_CNT_CODE(0x4), + /* mark TX mailbox as INACTIVE */ + flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE, ®s->cantxfg[FLEXCAN_TX_BUF_ID].can_ctrl); /* acceptance mask/acceptance code (accept everything) */ From fc05b884a31dbf259cc73cc856e634ec3acbebb6 Mon Sep 17 00:00:00 2001 From: David Jander Date: Wed, 27 Aug 2014 11:58:05 +0200 Subject: [PATCH 081/172] can: flexcan: correctly initialize mailboxes Apparently mailboxes may contain random data at startup, causing some of them being prepared for message reception. This causes overruns being missed or even confusing the IRQ check for trasmitted messages, increasing the transmit counter instead of the error counter. This patch initializes all mailboxes after the FIFO as RX_INACTIVE. Signed-off-by: David Jander Cc: linux-stable Signed-off-by: Marc Kleine-Budde --- drivers/net/can/flexcan.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 76dcbca6c80c..fc0769527e6b 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -812,6 +812,7 @@ static int flexcan_chip_start(struct net_device *dev) struct flexcan_regs __iomem *regs = priv->base; int err; u32 reg_mcr, reg_ctrl; + int i; /* enable module */ err = flexcan_chip_enable(priv); @@ -878,6 +879,12 @@ static int flexcan_chip_start(struct net_device *dev) netdev_dbg(dev, "%s: writing ctrl=0x%08x", __func__, reg_ctrl); flexcan_write(reg_ctrl, ®s->ctrl); + /* clear and invalidate all mailboxes first */ + for (i = FLEXCAN_TX_BUF_ID; i < ARRAY_SIZE(regs->cantxfg); i++) { + flexcan_write(FLEXCAN_MB_CODE_RX_INACTIVE, + ®s->cantxfg[i].can_ctrl); + } + /* mark TX mailbox as INACTIVE */ flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE, ®s->cantxfg[FLEXCAN_TX_BUF_ID].can_ctrl); From 25e924450fcb23c11c07c95ea8964dd9f174652e Mon Sep 17 00:00:00 2001 From: David Jander Date: Wed, 3 Sep 2014 16:47:22 +0200 Subject: [PATCH 082/172] can: flexcan: implement workaround for errata ERR005829 This patch implements the workaround mentioned in ERR005829: ERR005829: FlexCAN: FlexCAN does not transmit a message that is enabled to be transmitted in a specific moment during the arbitration process. Workaround: The workaround consists of two extra steps after setting up a message for transmission: Step 8: Reserve the first valid mailbox as an inactive mailbox (CODE=0b1000). If RX FIFO is disabled, this mailbox must be message buffer 0. Otherwise, the first valid mailbox can be found using the "RX FIFO filters" table in the FlexCAN chapter of the chip reference manual. Step 9: Write twice INACTIVE code (0b1000) into the first valid mailbox. Signed-off-by: David Jander Cc: linux-stable Signed-off-by: Marc Kleine-Budde --- drivers/net/can/flexcan.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index fc0769527e6b..54061c4bbf32 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -125,7 +125,9 @@ FLEXCAN_ESR_BOFF_INT | FLEXCAN_ESR_ERR_INT) /* FLEXCAN interrupt flag register (IFLAG) bits */ -#define FLEXCAN_TX_BUF_ID 8 +/* Errata ERR005829 step7: Reserve first valid MB */ +#define FLEXCAN_TX_BUF_RESERVED 8 +#define FLEXCAN_TX_BUF_ID 9 #define FLEXCAN_IFLAG_BUF(x) BIT(x) #define FLEXCAN_IFLAG_RX_FIFO_OVERFLOW BIT(7) #define FLEXCAN_IFLAG_RX_FIFO_WARN BIT(6) @@ -439,6 +441,14 @@ static int flexcan_start_xmit(struct sk_buff *skb, struct net_device *dev) flexcan_write(can_id, ®s->cantxfg[FLEXCAN_TX_BUF_ID].can_id); flexcan_write(ctrl, ®s->cantxfg[FLEXCAN_TX_BUF_ID].can_ctrl); + /* Errata ERR005829 step8: + * Write twice INACTIVE(0x8) code to first MB. + */ + flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE, + ®s->cantxfg[FLEXCAN_TX_BUF_RESERVED].can_ctrl); + flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE, + ®s->cantxfg[FLEXCAN_TX_BUF_RESERVED].can_ctrl); + return NETDEV_TX_OK; } @@ -885,6 +895,10 @@ static int flexcan_chip_start(struct net_device *dev) ®s->cantxfg[i].can_ctrl); } + /* Errata ERR005829: mark first TX mailbox as INACTIVE */ + flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE, + ®s->cantxfg[FLEXCAN_TX_BUF_RESERVED].can_ctrl); + /* mark TX mailbox as INACTIVE */ flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE, ®s->cantxfg[FLEXCAN_TX_BUF_ID].can_ctrl); From de5944883ebbedbf5adc8497659772f5da7b7d72 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Tue, 16 Sep 2014 15:31:27 +0200 Subject: [PATCH 083/172] can: flexcan: put TX mailbox into TX_INACTIVE mode after tx-complete After sending a RTR frame the TX mailbox becomes a RX_EMPTY mailbox. To avoid side effects when the RX-FIFO is full, this patch puts the TX mailbox into TX_INACTIVE mode in the transmission complete interrupt handler. This, of course, leaves a race window between the actual completion of the transmission and the handling of tx-complete interrupt. However this is the best we can do without busy polling the tx complete interrupt. Cc: linux-stable Signed-off-by: Marc Kleine-Budde --- drivers/net/can/flexcan.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 54061c4bbf32..c17ae9eb7278 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -765,6 +765,9 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id) stats->tx_bytes += can_get_echo_skb(dev, 0); stats->tx_packets++; can_led_event(dev, CAN_LED_EVENT_TX); + /* after sending a RTR frame mailbox is in RX mode */ + flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE, + ®s->cantxfg[FLEXCAN_TX_BUF_ID].can_ctrl); flexcan_write((1 << FLEXCAN_TX_BUF_ID), ®s->iflag1); netif_wake_queue(dev); } From 4c728d804c4b9d1ae7f76e8f32c419bc21a6e540 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Tue, 2 Sep 2014 16:54:17 +0200 Subject: [PATCH 084/172] can: flexcan: increase FLEXCAN_MCR_MAXMB() macro to 7 bits This patch increases the mask in the FLEXCAN_MCR_MAXMB() to 7 bits as in the newer flexcan cores the MAXMB field is 7 bits wide. Reported-by: David Jander Signed-off-by: Marc Kleine-Budde --- drivers/net/can/flexcan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index c17ae9eb7278..6586309329e6 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -62,7 +62,7 @@ #define FLEXCAN_MCR_BCC BIT(16) #define FLEXCAN_MCR_LPRIO_EN BIT(13) #define FLEXCAN_MCR_AEN BIT(12) -#define FLEXCAN_MCR_MAXMB(x) ((x) & 0x1f) +#define FLEXCAN_MCR_MAXMB(x) ((x) & 0x7f) #define FLEXCAN_MCR_IDAM_A (0 << 8) #define FLEXCAN_MCR_IDAM_B (1 << 8) #define FLEXCAN_MCR_IDAM_C (2 << 8) From e77980e50bc2850599d4d9c0192b67a9ffd6daac Mon Sep 17 00:00:00 2001 From: David Dueck Date: Wed, 17 Sep 2014 14:26:48 +0200 Subject: [PATCH 085/172] can: at91_can: add missing prepare and unprepare of the clock In order to make the driver work with the common clock framework, this patch converts the clk_enable()/clk_disable() to clk_prepare_enable()/clk_disable_unprepare(). While there, add the missing error handling. Signed-off-by: David Dueck Signed-off-by: Anthony Harivel Acked-by: Boris Brezillon Cc: linux-stable Signed-off-by: Marc Kleine-Budde --- drivers/net/can/at91_can.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c index f07fa89b5fd5..05e1aa090add 100644 --- a/drivers/net/can/at91_can.c +++ b/drivers/net/can/at91_can.c @@ -1123,7 +1123,9 @@ static int at91_open(struct net_device *dev) struct at91_priv *priv = netdev_priv(dev); int err; - clk_enable(priv->clk); + err = clk_prepare_enable(priv->clk); + if (err) + return err; /* check or determine and set bittime */ err = open_candev(dev); @@ -1149,7 +1151,7 @@ static int at91_open(struct net_device *dev) out_close: close_candev(dev); out: - clk_disable(priv->clk); + clk_disable_unprepare(priv->clk); return err; } @@ -1166,7 +1168,7 @@ static int at91_close(struct net_device *dev) at91_chip_stop(dev, CAN_STATE_STOPPED); free_irq(dev->irq, dev); - clk_disable(priv->clk); + clk_disable_unprepare(priv->clk); close_candev(dev); From eb4aec84d6bdf98d00cedb41c18000f7a31e648a Mon Sep 17 00:00:00 2001 From: Zefan Li Date: Thu, 18 Sep 2014 17:28:46 +0800 Subject: [PATCH 086/172] cgroup: fix unbalanced locking cgroup_pidlist_start() holds cgrp->pidlist_mutex and then calls pidlist_array_load(), and cgroup_pidlist_stop() releases the mutex. It is wrong that we release the mutex in the failure path in pidlist_array_load(), because cgroup_pidlist_stop() will be called no matter if cgroup_pidlist_start() returns errno or not. Fixes: 4bac00d16a8760eae7205e41d2c246477d42a210 Cc: # 3.14+ Signed-off-by: Zefan Li Signed-off-by: Tejun Heo Acked-by: Cong Wang --- kernel/cgroup.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 940aced4ed00..3a73f995a81e 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -3985,7 +3985,6 @@ static int pidlist_array_load(struct cgroup *cgrp, enum cgroup_filetype type, l = cgroup_pidlist_find_create(cgrp, type); if (!l) { - mutex_unlock(&cgrp->pidlist_mutex); pidlist_free(array); return -ENOMEM; } From 8245b3634516e6b7eb1c94594c0fd41d233502aa Mon Sep 17 00:00:00 2001 From: Huacai Chen Date: Fri, 19 Sep 2014 14:57:02 +0800 Subject: [PATCH 087/172] ALSA: hda - Add fixup model name lookup for Lemote A1205 Lemote A1004 is already added in commit a2dd933d01f (ALSA: hda - Add fixup name lookup for CX5051 and 5066 codecs), but Lemote A1205 has missing. Signed-off-by: Huacai Chen Cc: # 3.15+ Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_conexant.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 6e5d0cb4e3d7..47ccb8f44adb 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -777,6 +777,7 @@ static const struct hda_model_fixup cxt5066_fixup_models[] = { { .id = CXT_PINCFG_LENOVO_TP410, .name = "tp410" }, { .id = CXT_FIXUP_THINKPAD_ACPI, .name = "thinkpad" }, { .id = CXT_PINCFG_LEMOTE_A1004, .name = "lemote-a1004" }, + { .id = CXT_PINCFG_LEMOTE_A1205, .name = "lemote-a1205" }, { .id = CXT_FIXUP_OLPC_XO, .name = "olpc-xo" }, {} }; From d6a488f21c0f3c44bfbb2339a75159ee55aa2b6f Mon Sep 17 00:00:00 2001 From: Devesh Sharma Date: Mon, 9 Jun 2014 10:52:37 +0530 Subject: [PATCH 088/172] RDMA/ocrdma: Report correct value of max_fast_reg_page_list_len Fix ocrdma_query_device() to report correct value of max_fast_reg_page_list_len. Signed-off-by: Devesh Sharma Signed-off-by: Selvin Xavier Signed-off-by: Mitesh Ahuja Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c index acb434d16903..4527311171c5 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c @@ -101,7 +101,7 @@ int ocrdma_query_device(struct ib_device *ibdev, struct ib_device_attr *attr) attr->max_srq_sge = dev->attr.max_srq_sge; attr->max_srq_wr = dev->attr.max_rqe; attr->local_ca_ack_delay = dev->attr.local_ca_ack_delay; - attr->max_fast_reg_page_list_len = 0; + attr->max_fast_reg_page_list_len = dev->attr.max_pages_per_frmr; attr->max_pkeys = 1; return 0; } From f93439e476d012b2503dbb07fe0fc675bcbff099 Mon Sep 17 00:00:00 2001 From: Devesh Sharma Date: Mon, 9 Jun 2014 10:52:38 +0530 Subject: [PATCH 089/172] RDMA/ocrdma: Do not skip setting deferred_arm When ib_request_notify_cq() is called for the first time, ocrdma tries to skip setting deffered_arm flag. This may lead CQ to an un-armed state thus never generating a CQ event and leaving consumer hung. This patch removes the part of code that skips setting deferred_arm. Signed-off-by: Devesh Sharma Signed-off-by: Selvin Xavier Signed-off-by: Mitesh Ahuja Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c index 4527311171c5..8f5f2577f288 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c @@ -2846,11 +2846,9 @@ int ocrdma_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags cq_flags) if (cq->first_arm) { ocrdma_ring_cq_db(dev, cq_id, arm_needed, sol_needed, 0); cq->first_arm = false; - goto skip_defer; } - cq->deferred_arm = true; -skip_defer: + cq->deferred_arm = true; cq->deferred_sol = sol_needed; spin_unlock_irqrestore(&cq->cq_lock, flags); From 87773dd56d5405ac28119fcfadacefd35877c18f Mon Sep 17 00:00:00 2001 From: Shawn Bohrer Date: Wed, 3 Sep 2014 12:13:57 -0500 Subject: [PATCH 090/172] IB: ib_umem_release() should decrement mm->pinned_vm from ib_umem_get In debugging an application that receives -ENOMEM from ib_reg_mr(), I found that ib_umem_get() can fail because the pinned_vm count has wrapped causing it to always be larger than the lock limit even with RLIMIT_MEMLOCK set to RLIM_INFINITY. The wrapping of pinned_vm occurs because the process that calls ib_reg_mr() will have its mm->pinned_vm count incremented. Later a different process with a different mm_struct than the one that allocated the ib_umem struct ends up releasing it which results in decrementing the new processes mm->pinned_vm count past zero and wrapping. I'm not entirely sure what circumstances cause a different process to release the ib_umem than the one that allocated it but the kernel stack trace of the freeing process from my situation looks like the following: Call Trace: [] dump_stack+0x19/0x1b [] ib_umem_release+0x1f5/0x200 [ib_core] [] mlx4_ib_destroy_qp+0x241/0x440 [mlx4_ib] [] ib_destroy_qp+0x12c/0x170 [ib_core] [] ib_uverbs_close+0x259/0x4e0 [ib_uverbs] [] __fput+0xba/0x240 [] ____fput+0xe/0x10 [] task_work_run+0xc4/0xe0 [] do_notify_resume+0x95/0xa0 [] int_signal+0x12/0x17 The following patch fixes the issue by storing the pid struct of the process that calls ib_umem_get() so that ib_umem_release and/or ib_umem_account() can properly decrement the pinned_vm count of the correct mm_struct. Signed-off-by: Shawn Bohrer Reviewed-by: Shachar Raindel Signed-off-by: Roland Dreier --- drivers/infiniband/core/umem.c | 19 +++++++++++++------ include/rdma/ib_umem.h | 1 + 2 files changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c index a3a2e9c1639b..df0c4f605a21 100644 --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -105,6 +105,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, umem->length = size; umem->offset = addr & ~PAGE_MASK; umem->page_size = PAGE_SIZE; + umem->pid = get_task_pid(current, PIDTYPE_PID); /* * We ask for writable memory if any access flags other than * "remote read" are set. "Local write" and "remote write" @@ -198,6 +199,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, if (ret < 0) { if (need_release) __ib_umem_release(context->device, umem, 0); + put_pid(umem->pid); kfree(umem); } else current->mm->pinned_vm = locked; @@ -230,15 +232,19 @@ void ib_umem_release(struct ib_umem *umem) { struct ib_ucontext *context = umem->context; struct mm_struct *mm; + struct task_struct *task; unsigned long diff; __ib_umem_release(umem->context->device, umem, 1); - mm = get_task_mm(current); - if (!mm) { - kfree(umem); - return; - } + task = get_pid_task(umem->pid, PIDTYPE_PID); + put_pid(umem->pid); + if (!task) + goto out; + mm = get_task_mm(task); + put_task_struct(task); + if (!mm) + goto out; diff = PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT; @@ -262,9 +268,10 @@ void ib_umem_release(struct ib_umem *umem) } else down_write(&mm->mmap_sem); - current->mm->pinned_vm -= diff; + mm->pinned_vm -= diff; up_write(&mm->mmap_sem); mmput(mm); +out: kfree(umem); } EXPORT_SYMBOL(ib_umem_release); diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h index 1ea0b65c4cfb..a2bf41e0bde9 100644 --- a/include/rdma/ib_umem.h +++ b/include/rdma/ib_umem.h @@ -47,6 +47,7 @@ struct ib_umem { int writable; int hugetlb; struct work_struct work; + struct pid *pid; struct mm_struct *mm; unsigned long diff; struct sg_table sg_head; From 3033771febebf2c66d5146624746ebc4a3d79314 Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Mon, 15 Sep 2014 11:43:06 -0400 Subject: [PATCH 091/172] IB/ipath: Change get_user_pages() usage to always NULL vmas The static helper routine, __ipath_get_user_pages(), accepts a vma arg, but current use always passes NULL. This has caused some confusion associated with the correct use of this argument, but since the current use case doesn't require the flexiblity, the best thing to do is to simplfy the code to always pass NULL to get_user_pages(). Reviewed-by: Dennis Dalessandro Signed-off-by: Mike Marciniszyn Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_user_pages.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/ipath/ipath_user_pages.c b/drivers/infiniband/hw/ipath/ipath_user_pages.c index dc66c4506916..1da1252dcdb3 100644 --- a/drivers/infiniband/hw/ipath/ipath_user_pages.c +++ b/drivers/infiniband/hw/ipath/ipath_user_pages.c @@ -54,7 +54,7 @@ static void __ipath_release_user_pages(struct page **p, size_t num_pages, /* call with current->mm->mmap_sem held */ static int __ipath_get_user_pages(unsigned long start_page, size_t num_pages, - struct page **p, struct vm_area_struct **vma) + struct page **p) { unsigned long lock_limit; size_t got; @@ -74,7 +74,7 @@ static int __ipath_get_user_pages(unsigned long start_page, size_t num_pages, ret = get_user_pages(current, current->mm, start_page + got * PAGE_SIZE, num_pages - got, 1, 1, - p + got, vma); + p + got, NULL); if (ret < 0) goto bail_release; } @@ -165,7 +165,7 @@ int ipath_get_user_pages(unsigned long start_page, size_t num_pages, down_write(¤t->mm->mmap_sem); - ret = __ipath_get_user_pages(start_page, num_pages, p, NULL); + ret = __ipath_get_user_pages(start_page, num_pages, p); up_write(¤t->mm->mmap_sem); From f5c4984e065556b81edf3c9dadfbc8750de690fc Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Mon, 15 Sep 2014 11:42:53 -0400 Subject: [PATCH 092/172] IB/qib: Change get_user_pages() usage to always NULL vmas The static helper routine, __qib_get_user_pages(), accepts a vma arg, but current use always passes NULL. This has caused some confusion associated with the correct use of this argument, but since the current use case doesn't require the flexiblity, the best thing to do is to simplfy the code to always pass NULL to get_user_pages(). Reviewed-by: Dennis Dalessandro Signed-off-by: Mike Marciniszyn Signed-off-by: Roland Dreier --- drivers/infiniband/hw/qib/qib_user_pages.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c index 2bc1d2b96298..74f90b2619f6 100644 --- a/drivers/infiniband/hw/qib/qib_user_pages.c +++ b/drivers/infiniband/hw/qib/qib_user_pages.c @@ -52,7 +52,7 @@ static void __qib_release_user_pages(struct page **p, size_t num_pages, * Call with current->mm->mmap_sem held. */ static int __qib_get_user_pages(unsigned long start_page, size_t num_pages, - struct page **p, struct vm_area_struct **vma) + struct page **p) { unsigned long lock_limit; size_t got; @@ -69,7 +69,7 @@ static int __qib_get_user_pages(unsigned long start_page, size_t num_pages, ret = get_user_pages(current, current->mm, start_page + got * PAGE_SIZE, num_pages - got, 1, 1, - p + got, vma); + p + got, NULL); if (ret < 0) goto bail_release; } @@ -136,7 +136,7 @@ int qib_get_user_pages(unsigned long start_page, size_t num_pages, down_write(¤t->mm->mmap_sem); - ret = __qib_get_user_pages(start_page, num_pages, p, NULL); + ret = __qib_get_user_pages(start_page, num_pages, p); up_write(¤t->mm->mmap_sem); From 50e2ec9105fe1045298924a6c7b9ce870a0b6c13 Mon Sep 17 00:00:00 2001 From: Markus Stockhausen Date: Wed, 13 Aug 2014 14:07:30 +0000 Subject: [PATCH 093/172] IB/mlx4: Disable TSO for Connect-X rev. A0 HCAs According to , revision A0 of Connect-X does not correctly assemble TSO packets. Disable that feature on that hardware revision. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index e1e558a3d692..20f731f08c7e 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -59,6 +59,7 @@ #define MLX4_IB_FLOW_MAX_PRIO 0xFFF #define MLX4_IB_FLOW_QPN_MASK 0xFFFFFF +#define MLX4_IB_CARD_REV_A0 0xA0 MODULE_AUTHOR("Roland Dreier"); MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); @@ -158,7 +159,9 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; - if (dev->dev->caps.max_gso_sz && dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH) + if (dev->dev->caps.max_gso_sz && + (dev->dev->rev_id != MLX4_IB_CARD_REV_A0) && + (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH)) props->device_cap_flags |= IB_DEVICE_UD_TSO; if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; From 68f9d83c7765b110de54677573e9538f3ca6ca04 Mon Sep 17 00:00:00 2001 From: Alex Estrin Date: Wed, 20 Aug 2014 11:15:08 -0400 Subject: [PATCH 094/172] IPoIB: Remove unnecessary port query There are two queries for port attributes one after another. A second call is not needed since port_attr structure already holds the data. Reviewed-by: Ira Weiny Signed-off-by: Alex Estrin Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index d4e005720d01..ffb83b5f7e80 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -529,21 +529,13 @@ void ipoib_mcast_join_task(struct work_struct *work) port_attr.state); return; } + priv->local_lid = port_attr.lid; if (ib_query_gid(priv->ca, priv->port, 0, &priv->local_gid)) ipoib_warn(priv, "ib_query_gid() failed\n"); else memcpy(priv->dev->dev_addr + 4, priv->local_gid.raw, sizeof (union ib_gid)); - { - struct ib_port_attr attr; - - if (!ib_query_port(priv->ca, priv->port, &attr)) - priv->local_lid = attr.lid; - else - ipoib_warn(priv, "ib_query_port failed\n"); - } - if (!priv->broadcast) { struct ipoib_mcast *broadcast; From 85cbb7c728bf39c45a9789b88c9471c0d7a58b0e Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Fri, 19 Sep 2014 08:32:19 -0400 Subject: [PATCH 095/172] IB/qib: Correct reference counting in debugfs qp_stats This particular reference count is not needed with the rcu protection, and the current code leaks a reference count, causing a hang in qib_qp_destroy(). Cc: Reviewed-by: Dennis Dalessandro Signed-off-by: Mike Marciniszyn Signed-off-by: Roland Dreier --- drivers/infiniband/hw/qib/qib_debugfs.c | 3 ++- drivers/infiniband/hw/qib/qib_qp.c | 8 -------- 2 files changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/infiniband/hw/qib/qib_debugfs.c b/drivers/infiniband/hw/qib/qib_debugfs.c index 799a0c3bffc4..6abd3ed3cd51 100644 --- a/drivers/infiniband/hw/qib/qib_debugfs.c +++ b/drivers/infiniband/hw/qib/qib_debugfs.c @@ -193,6 +193,7 @@ static void *_qp_stats_seq_start(struct seq_file *s, loff_t *pos) struct qib_qp_iter *iter; loff_t n = *pos; + rcu_read_lock(); iter = qib_qp_iter_init(s->private); if (!iter) return NULL; @@ -224,7 +225,7 @@ static void *_qp_stats_seq_next(struct seq_file *s, void *iter_ptr, static void _qp_stats_seq_stop(struct seq_file *s, void *iter_ptr) { - /* nothing for now */ + rcu_read_unlock(); } static int _qp_stats_seq_show(struct seq_file *s, void *iter_ptr) diff --git a/drivers/infiniband/hw/qib/qib_qp.c b/drivers/infiniband/hw/qib/qib_qp.c index 7fcc150d603c..6ddc0264aad2 100644 --- a/drivers/infiniband/hw/qib/qib_qp.c +++ b/drivers/infiniband/hw/qib/qib_qp.c @@ -1325,7 +1325,6 @@ int qib_qp_iter_next(struct qib_qp_iter *iter) struct qib_qp *pqp = iter->qp; struct qib_qp *qp; - rcu_read_lock(); for (; n < dev->qp_table_size; n++) { if (pqp) qp = rcu_dereference(pqp->next); @@ -1333,18 +1332,11 @@ int qib_qp_iter_next(struct qib_qp_iter *iter) qp = rcu_dereference(dev->qp_table[n]); pqp = qp; if (qp) { - if (iter->qp) - atomic_dec(&iter->qp->refcount); - atomic_inc(&qp->refcount); - rcu_read_unlock(); iter->qp = qp; iter->n = n; return 0; } } - rcu_read_unlock(); - if (iter->qp) - atomic_dec(&iter->qp->refcount); return ret; } From f6f2332dce0efeea8c5653b6e9d1e8c379ace65c Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Tue, 16 Sep 2014 18:32:58 -0700 Subject: [PATCH 096/172] sparc: bpf_jit: fix support for ldx/stx mem and SKF_AD_VLAN_TAG fix several issues in sparc BPF JIT compiler. ldx/stx related: . classic BPF instructions that access mem[] slots were not setting SEEN_MEM flag, so stack wasn't allocated. Fix that by advertising correct flags . LDX/STX instructions were missing SEEN_XREG, so register value could have leaked to user space. Fix it. . since stack for mem[] slots is allocated with 'sub %sp' instead of 'save %sp', use %sp as base register instead of %fp. . ldx mem[0] means first slot in classic BPF which should have -4 offset instead of 0. . sparc64 needs 2047 stack bias as per ABI to access stack . emit_stmem() was using LD32I macro instead of ST32I SKF_AD_VLAN_TAG* related: . SKF_AD_VLAN_TAG_PRESENT must return 1 or 0 instead of '> 0' or 0 as per classic BPF de facto standard . SKF_AD_VLAN_TAG needs to mask the field correctly Fixes: 2809a2087cc4 ("net: filter: Just In Time compiler for sparc") Signed-off-by: Alexei Starovoitov Signed-off-by: David S. Miller --- arch/sparc/net/bpf_jit_comp.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c index 1f76c22a6a75..51ae87b483e0 100644 --- a/arch/sparc/net/bpf_jit_comp.c +++ b/arch/sparc/net/bpf_jit_comp.c @@ -234,12 +234,18 @@ do { BUILD_BUG_ON(FIELD_SIZEOF(STRUCT, FIELD) != sizeof(u8)); \ __emit_load8(BASE, STRUCT, FIELD, DEST); \ } while (0) -#define emit_ldmem(OFF, DEST) \ -do { *prog++ = LD32I | RS1(FP) | S13(-(OFF)) | RD(DEST); \ +#ifdef CONFIG_SPARC64 +#define BIAS (STACK_BIAS - 4) +#else +#define BIAS (-4) +#endif + +#define emit_ldmem(OFF, DEST) \ +do { *prog++ = LD32I | RS1(SP) | S13(BIAS - (OFF)) | RD(DEST); \ } while (0) -#define emit_stmem(OFF, SRC) \ -do { *prog++ = LD32I | RS1(FP) | S13(-(OFF)) | RD(SRC); \ +#define emit_stmem(OFF, SRC) \ +do { *prog++ = ST32I | RS1(SP) | S13(BIAS - (OFF)) | RD(SRC); \ } while (0) #ifdef CONFIG_SMP @@ -615,10 +621,11 @@ void bpf_jit_compile(struct bpf_prog *fp) case BPF_ANC | SKF_AD_VLAN_TAG: case BPF_ANC | SKF_AD_VLAN_TAG_PRESENT: emit_skb_load16(vlan_tci, r_A); - if (code == (BPF_ANC | SKF_AD_VLAN_TAG)) { - emit_andi(r_A, VLAN_VID_MASK, r_A); + if (code != (BPF_ANC | SKF_AD_VLAN_TAG)) { + emit_alu_K(SRL, 12); + emit_andi(r_A, 1, r_A); } else { - emit_loadimm(VLAN_TAG_PRESENT, r_TMP); + emit_loadimm(~VLAN_TAG_PRESENT, r_TMP); emit_and(r_A, r_TMP, r_A); } break; @@ -630,15 +637,19 @@ void bpf_jit_compile(struct bpf_prog *fp) emit_loadimm(K, r_X); break; case BPF_LD | BPF_MEM: + seen |= SEEN_MEM; emit_ldmem(K * 4, r_A); break; case BPF_LDX | BPF_MEM: + seen |= SEEN_MEM | SEEN_XREG; emit_ldmem(K * 4, r_X); break; case BPF_ST: + seen |= SEEN_MEM; emit_stmem(K * 4, r_A); break; case BPF_STX: + seen |= SEEN_MEM | SEEN_XREG; emit_stmem(K * 4, r_X); break; From 6f2b6a3005b2c34c39f207a87667564f64f2f91a Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Wed, 17 Sep 2014 09:04:44 -0400 Subject: [PATCH 097/172] 3c59x: Add dma error checking and recovery Noted that 3c59x has no checks on transmit for failed DMA mappings, and no ability to unmap fragments when a single map fails in the middle of a transmit. This patch provides error checking to ensure that dma mappings work properly, and unrolls an skb mapping if a fragmented skb transmission has a mapping failure to prevent leaks. Signed-off-by: Neil Horman CC: Linux Kernel list CC: "David S. Miller" CC: Meelis Roos Tested-by: Meelis Roos --- drivers/net/ethernet/3com/3c59x.c | 50 +++++++++++++++++++++++++------ 1 file changed, 41 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c index 3fe45c705933..8ab87ff6a9e6 100644 --- a/drivers/net/ethernet/3com/3c59x.c +++ b/drivers/net/ethernet/3com/3c59x.c @@ -2129,6 +2129,7 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) int entry = vp->cur_tx % TX_RING_SIZE; struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE]; unsigned long flags; + dma_addr_t dma_addr; if (vortex_debug > 6) { pr_debug("boomerang_start_xmit()\n"); @@ -2163,24 +2164,48 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum); if (!skb_shinfo(skb)->nr_frags) { - vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, - skb->len, PCI_DMA_TODEVICE)); + dma_addr = pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, + PCI_DMA_TODEVICE); + if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) + goto out_dma_err; + + vp->tx_ring[entry].frag[0].addr = cpu_to_le32(dma_addr); vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG); } else { int i; - vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, - skb_headlen(skb), PCI_DMA_TODEVICE)); + dma_addr = pci_map_single(VORTEX_PCI(vp), skb->data, + skb_headlen(skb), PCI_DMA_TODEVICE); + if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) + goto out_dma_err; + + vp->tx_ring[entry].frag[0].addr = cpu_to_le32(dma_addr); vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb_headlen(skb)); for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + dma_addr = skb_frag_dma_map(&VORTEX_PCI(vp)->dev, frag, + frag->page_offset, + frag->size, + DMA_TO_DEVICE); + if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) { + for(i = i-1; i >= 0; i--) + dma_unmap_page(&VORTEX_PCI(vp)->dev, + le32_to_cpu(vp->tx_ring[entry].frag[i+1].addr), + le32_to_cpu(vp->tx_ring[entry].frag[i+1].length), + DMA_TO_DEVICE); + + pci_unmap_single(VORTEX_PCI(vp), + le32_to_cpu(vp->tx_ring[entry].frag[0].addr), + le32_to_cpu(vp->tx_ring[entry].frag[0].length), + PCI_DMA_TODEVICE); + + goto out_dma_err; + } + vp->tx_ring[entry].frag[i+1].addr = - cpu_to_le32(skb_frag_dma_map( - &VORTEX_PCI(vp)->dev, - frag, - frag->page_offset, frag->size, DMA_TO_DEVICE)); + cpu_to_le32(dma_addr); if (i == skb_shinfo(skb)->nr_frags-1) vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(skb_frag_size(frag)|LAST_FRAG); @@ -2189,7 +2214,10 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) } } #else - vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE)); + dma_addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE)); + if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) + goto out_dma_err; + vp->tx_ring[entry].addr = cpu_to_le32(dma_addr); vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG); vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded); #endif @@ -2217,7 +2245,11 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) skb_tx_timestamp(skb); iowrite16(DownUnstall, ioaddr + EL3_CMD); spin_unlock_irqrestore(&vp->lock, flags); +out: return NETDEV_TX_OK; +out_dma_err: + dev_err(&VORTEX_PCI(vp)->dev, "Error mapping dma buffer\n"); + goto out; } /* The interrupt handler does all of the Rx thread work and cleans up From 8400dd029e764e30361a51a7ae35900ae0032b43 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Wed, 17 Sep 2014 09:04:45 -0400 Subject: [PATCH 098/172] 3c59x: Fix bad offset spec in skb_frag_dma_map Recently aded the use of skb_frag_dma_map to 3c59x, but didn't realize it automatically included the frag_offset internally, as well as provided an option to specify an extra offset in the parameter list. We need to specify an offset of 0 in the parameter list to avoid skb corruption that results in lost connections. Signed-off-by: Neil Horman CC: Linux Kernel list CC: "David S. Miller" CC: Meelis Roos Tested-by: Meelis Roos --- drivers/net/ethernet/3com/3c59x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c index 8ab87ff6a9e6..8ca49f04acec 100644 --- a/drivers/net/ethernet/3com/3c59x.c +++ b/drivers/net/ethernet/3com/3c59x.c @@ -2186,7 +2186,7 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; dma_addr = skb_frag_dma_map(&VORTEX_PCI(vp)->dev, frag, - frag->page_offset, + 0, frag->size, DMA_TO_DEVICE); if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) { From 0d0162e7a33d3710b9604e7c68c0f31f5c457428 Mon Sep 17 00:00:00 2001 From: Francesco Ruggeri Date: Wed, 17 Sep 2014 10:40:44 -0700 Subject: [PATCH 099/172] net: allow macvlans to move to net namespace I cannot move a macvlan interface created on top of a bonding interface to a different namespace: % ip netns add dummy0 % ip link add link bond0 mac0 type macvlan % ip link set mac0 netns dummy0 RTNETLINK answers: Invalid argument % The problem seems to be that commit f9399814927a ("bonding: Don't allow bond devices to change network namespaces.") sets NETIF_F_NETNS_LOCAL on bonding interfaces, and commit 797f87f83b60 ("macvlan: fix netdev feature propagation from lower device") causes macvlan interfaces to inherit its features from the lower device. NETIF_F_NETNS_LOCAL should not be inherited from the lower device by a macvlan. Patch tested on 3.16. Signed-off-by: Francesco Ruggeri Acked-by: Cong Wang Signed-off-by: David S. Miller --- drivers/net/macvlan.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index a96955597755..7652fd152109 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -806,6 +806,7 @@ static netdev_features_t macvlan_fix_features(struct net_device *dev, features, mask); features |= ALWAYS_ON_FEATURES; + features &= ~NETIF_F_NETNS_LOCAL; return features; } From b3f2512ecdb3561ffa44737f370fdb78e1febf6b Mon Sep 17 00:00:00 2001 From: Fabian Frederick Date: Wed, 17 Sep 2014 21:07:19 +0200 Subject: [PATCH 100/172] lib: rhashtable: remove second linux/log2.h inclusion linux/log2.h was included twice. Signed-off-by: Fabian Frederick Signed-off-by: David S. Miller --- lib/rhashtable.c | 1 - 1 file changed, 1 deletion(-) diff --git a/lib/rhashtable.c b/lib/rhashtable.c index a2c78810ebc1..7b36e4d40ed7 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -23,7 +23,6 @@ #include #include #include -#include #define HASH_DEFAULT_SIZE 64UL #define HASH_MIN_SIZE 4UL From 0d566379c5e15a2922dc6bb2ee6a4b7f7a3a0786 Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Thu, 18 Sep 2014 10:31:03 +0200 Subject: [PATCH 101/172] genetlink: add function genl_has_listeners() This function is the counterpart of the function netlink_has_listeners(). Signed-off-by: Nicolas Dichtel Acked-by: Pravin B Shelar Signed-off-by: David S. Miller --- include/net/genetlink.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/net/genetlink.h b/include/net/genetlink.h index 93695f0e22a5..af10c2cf8a1d 100644 --- a/include/net/genetlink.h +++ b/include/net/genetlink.h @@ -394,4 +394,12 @@ static inline int genl_set_err(struct genl_family *family, struct net *net, return netlink_set_err(net->genl_sock, portid, group, code); } +static inline int genl_has_listeners(struct genl_family *family, + struct sock *sk, unsigned int group) +{ + if (WARN_ON_ONCE(group >= family->n_mcgrps)) + return -EINVAL; + group = family->mcgrp_offset + group; + return netlink_has_listeners(sk, group); +} #endif /* __NET_GENERIC_NETLINK_H */ From 9b67aa4a82492f128adfccc63e61ab57c1ce1dfd Mon Sep 17 00:00:00 2001 From: Samuel Gauthier Date: Thu, 18 Sep 2014 10:31:04 +0200 Subject: [PATCH 102/172] openvswitch: restore OVS_FLOW_CMD_NEW notifications Since commit fb5d1e9e127a ("openvswitch: Build flow cmd netlink reply only if needed."), the new flows are not notified to the listeners of OVS_FLOW_MCGROUP. This commit fixes the problem by using the genl function, ie genl_has_listerners() instead of netlink_has_listeners(). Signed-off-by: Samuel Gauthier Signed-off-by: Nicolas Dichtel Acked-by: Pravin B Shelar Signed-off-by: David S. Miller --- net/openvswitch/datapath.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index 91d66b7e64ac..64dc864a417f 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -78,11 +78,12 @@ static const struct genl_multicast_group ovs_dp_vport_multicast_group = { /* Check if need to build a reply message. * OVS userspace sets the NLM_F_ECHO flag if it needs the reply. */ -static bool ovs_must_notify(struct genl_info *info, - const struct genl_multicast_group *grp) +static bool ovs_must_notify(struct genl_family *family, struct genl_info *info, + unsigned int group) { return info->nlhdr->nlmsg_flags & NLM_F_ECHO || - netlink_has_listeners(genl_info_net(info)->genl_sock, 0); + genl_has_listeners(family, genl_info_net(info)->genl_sock, + group); } static void ovs_notify(struct genl_family *family, @@ -763,7 +764,7 @@ static struct sk_buff *ovs_flow_cmd_alloc_info(const struct sw_flow_actions *act { struct sk_buff *skb; - if (!always && !ovs_must_notify(info, &ovs_dp_flow_multicast_group)) + if (!always && !ovs_must_notify(&dp_flow_genl_family, info, 0)) return NULL; skb = genlmsg_new_unicast(ovs_flow_cmd_msg_size(acts), info, GFP_KERNEL); From fe5c873459a973e59854bd235a7e6b3eaa8e5fe0 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sun, 21 Sep 2014 21:01:15 +0200 Subject: [PATCH 103/172] parisc: ptrace: use secure_computing_strict() Signed-off-by: Helge Deller --- arch/parisc/kernel/ptrace.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c index 3bab72462ab5..92438c21d453 100644 --- a/arch/parisc/kernel/ptrace.c +++ b/arch/parisc/kernel/ptrace.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -271,10 +272,7 @@ long do_syscall_trace_enter(struct pt_regs *regs) long ret = 0; /* Do the secure computing check first. */ - if (secure_computing(regs->gr[20])) { - /* seccomp failures shouldn't expose any additional code. */ - return -1; - } + secure_computing_strict(regs->gr[20]); if (test_thread_flag(TIF_SYSCALL_TRACE) && tracehook_report_syscall_entry(regs)) From 94c457deff2a211f8372f69a4d7b0d288183756a Mon Sep 17 00:00:00 2001 From: Rickard Strandqvist Date: Sun, 14 Sep 2014 18:02:12 +0200 Subject: [PATCH 104/172] parisc: pdc_stable.c: Cleaning up unnecessary use of memset in conjunction with strncpy Using memset before strncpy just to ensure a trailing null character is an unnecessary double writing of a string Patch modified by Helge Deller to additionally reduce stack usage. Signed-off-by: Rickard Strandqvist Signed-off-by: Helge Deller --- drivers/parisc/pdc_stable.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c index 0f54ab6260df..e4b73c2a053a 100644 --- a/drivers/parisc/pdc_stable.c +++ b/drivers/parisc/pdc_stable.c @@ -755,7 +755,7 @@ static ssize_t pdcs_auto_write(struct kobject *kobj, { struct pdcspath_entry *pathentry; unsigned char flags; - char in[count+1], *temp; + char in[8], *temp; char c; if (!capable(CAP_SYS_ADMIN)) @@ -765,8 +765,9 @@ static ssize_t pdcs_auto_write(struct kobject *kobj, return -EINVAL; /* We'll use a local copy of buf */ - memset(in, 0, count+1); + count = min_t(size_t, count, 7); strncpy(in, buf, count); + in[count] = '\0'; /* Current flags are stored in primary boot path entry */ pathentry = &pdcspath_entry_primary; From c735483de1a2cd5d6c6b67bf49cfb2991eae6ea6 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sun, 21 Sep 2014 22:31:08 +0200 Subject: [PATCH 105/172] parisc: pdc_stable.c: Avoid potential stack overflows Signed-off-by: Helge Deller --- drivers/parisc/pdc_stable.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c index e4b73c2a053a..3651c3871d5b 100644 --- a/drivers/parisc/pdc_stable.c +++ b/drivers/parisc/pdc_stable.c @@ -278,7 +278,7 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun { struct hardware_path hwpath; unsigned short i; - char in[count+1], *temp; + char in[64], *temp; struct device *dev; int ret; @@ -286,8 +286,9 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun return -EINVAL; /* We'll use a local copy of buf */ - memset(in, 0, count+1); + count = min_t(size_t, count, sizeof(in)-1); strncpy(in, buf, count); + in[count] = '\0'; /* Let's clean up the target. 0xff is a blank pattern */ memset(&hwpath, 0xff, sizeof(hwpath)); @@ -393,14 +394,15 @@ pdcspath_layer_write(struct pdcspath_entry *entry, const char *buf, size_t count { unsigned int layers[6]; /* device-specific info (ctlr#, unit#, ...) */ unsigned short i; - char in[count+1], *temp; + char in[64], *temp; if (!entry || !buf || !count) return -EINVAL; /* We'll use a local copy of buf */ - memset(in, 0, count+1); + count = min_t(size_t, count, sizeof(in)-1); strncpy(in, buf, count); + in[count] = '\0'; /* Let's clean up the target. 0 is a blank pattern */ memset(&layers, 0, sizeof(layers)); @@ -765,7 +767,7 @@ static ssize_t pdcs_auto_write(struct kobject *kobj, return -EINVAL; /* We'll use a local copy of buf */ - count = min_t(size_t, count, 7); + count = min_t(size_t, count, sizeof(in)-1); strncpy(in, buf, count); in[count] = '\0'; From a9960e6a293e6fc3ed414643bb4e4106272e4d0a Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sun, 21 Sep 2014 22:50:57 +0200 Subject: [PATCH 106/172] ALSA: pcm: fix fifo_size frame calculation The calculated frame size was wrong because snd_pcm_format_physical_width() actually returns the number of bits, not bytes. Use snd_pcm_format_size() instead, which not only returns bytes, but also simplifies the calculation. Fixes: 8bea869c5e56 ("ALSA: PCM midlevel: improve fifo_size handling") Signed-off-by: Clemens Ladisch Cc: Signed-off-by: Takashi Iwai --- sound/core/pcm_lib.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 9acc77eae487..0032278567ad 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -1782,14 +1782,16 @@ static int snd_pcm_lib_ioctl_fifo_size(struct snd_pcm_substream *substream, { struct snd_pcm_hw_params *params = arg; snd_pcm_format_t format; - int channels, width; + int channels; + ssize_t frame_size; params->fifo_size = substream->runtime->hw.fifo_size; if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_FIFO_IN_FRAMES)) { format = params_format(params); channels = params_channels(params); - width = snd_pcm_format_physical_width(format); - params->fifo_size /= width * channels; + frame_size = snd_pcm_format_size(format, channels); + if (frame_size > 0) + params->fifo_size /= (unsigned)frame_size; } return 0; } From e76bf634870e3c5e3a767ad575f1d404c9f1cab8 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Sun, 21 Sep 2014 23:55:38 +0200 Subject: [PATCH 107/172] ALSA: snd-usb-caiaq: Fix LED commands for Kore controller KoreController and KoreController2 need an EP1_CMD_DIMM_LEDS command to set their LEDs, not EP1_CMD_WRITE_IO. Signed-off-by: Daniel Mack Reported-and-tested-by: Brad Wilson Signed-off-by: Takashi Iwai --- sound/usb/caiaq/control.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/sound/usb/caiaq/control.c b/sound/usb/caiaq/control.c index f65fc0987cfb..b7a7c805d63f 100644 --- a/sound/usb/caiaq/control.c +++ b/sound/usb/caiaq/control.c @@ -100,15 +100,19 @@ static int control_put(struct snd_kcontrol *kcontrol, struct snd_usb_caiaqdev *cdev = caiaqdev(chip->card); int pos = kcontrol->private_value; int v = ucontrol->value.integer.value[0]; - unsigned char cmd = EP1_CMD_WRITE_IO; + unsigned char cmd; - if (cdev->chip.usb_id == - USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1)) - cmd = EP1_CMD_DIMM_LEDS; - - if (cdev->chip.usb_id == - USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER)) + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER): cmd = EP1_CMD_DIMM_LEDS; + break; + default: + cmd = EP1_CMD_WRITE_IO; + break; + } if (pos & CNT_INTVAL) { int i = pos & ~CNT_INTVAL; From 27fbe64bfa63cfb9da025975b59d96568caa2d53 Mon Sep 17 00:00:00 2001 From: Sam Bobroff Date: Fri, 19 Sep 2014 09:40:41 +1000 Subject: [PATCH 108/172] KVM: correct null pid check in kvm_vcpu_yield_to() Correct a simple mistake of checking the wrong variable before a dereference, resulting in the dereference not being properly protected by rcu_dereference(). Signed-off-by: Sam Bobroff Signed-off-by: Paolo Bonzini --- virt/kvm/kvm_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 96ec6226e4ab..95519bc959ed 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1725,7 +1725,7 @@ int kvm_vcpu_yield_to(struct kvm_vcpu *target) rcu_read_lock(); pid = rcu_dereference(target->pid); if (pid) - task = get_pid_task(target->pid, PIDTYPE_PID); + task = get_pid_task(pid, PIDTYPE_PID); rcu_read_unlock(); if (!task) return ret; From f2d5a94436cc7cc0221b9a81bba2276a25187dd3 Mon Sep 17 00:00:00 2001 From: Anton Altaparmakov Date: Mon, 22 Sep 2014 01:53:03 +0100 Subject: [PATCH 109/172] Fix nasty 32-bit overflow bug in buffer i/o code. On 32-bit architectures, the legacy buffer_head functions are not always handling the sector number with the proper 64-bit types, and will thus fail on 4TB+ disks. Any code that uses __getblk() (and thus bread(), breadahead(), sb_bread(), sb_breadahead(), sb_getblk()), and calls it using a 64-bit block on a 32-bit arch (where "long" is 32-bit) causes an inifinite loop in __getblk_slow() with an infinite stream of errors logged to dmesg like this: __find_get_block_slow() failed. block=6740375944, b_blocknr=2445408648 b_state=0x00000020, b_size=512 device sda1 blocksize: 512 Note how in hex block is 0x191C1F988 and b_blocknr is 0x91C1F988 i.e. the top 32-bits are missing (in this case the 0x1 at the top). This is because grow_dev_page() is broken and has a 32-bit overflow due to shifting the page index value (a pgoff_t - which is just 32 bits on 32-bit architectures) left-shifted as the block number. But the top bits to get lost as the pgoff_t is not type cast to sector_t / 64-bit before the shift. This patch fixes this issue by type casting "index" to sector_t before doing the left shift. Note this is not a theoretical bug but has been seen in the field on a 4TiB hard drive with logical sector size 512 bytes. This patch has been verified to fix the infinite loop problem on 3.17-rc5 kernel using a 4TB disk image mounted using "-o loop". Without this patch doing a "find /nt" where /nt is an NTFS volume causes the inifinite loop 100% reproducibly whilst with the patch it works fine as expected. Signed-off-by: Anton Altaparmakov Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds --- fs/buffer.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index 8f05111bbb8b..3588a80854b2 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -1022,7 +1022,8 @@ grow_dev_page(struct block_device *bdev, sector_t block, bh = page_buffers(page); if (bh->b_size == size) { end_block = init_page_buffers(page, bdev, - index << sizebits, size); + (sector_t)index << sizebits, + size); goto done; } if (!try_to_free_buffers(page)) @@ -1043,7 +1044,8 @@ grow_dev_page(struct block_device *bdev, sector_t block, */ spin_lock(&inode->i_mapping->private_lock); link_dev_buffers(page, bh); - end_block = init_page_buffers(page, bdev, index << sizebits, size); + end_block = init_page_buffers(page, bdev, (sector_t)index << sizebits, + size); spin_unlock(&inode->i_mapping->private_lock); done: ret = (block < end_block) ? 1 : -ENXIO; From 4ff0acca7344c93fd9ed778b4c3ce16d95c594e4 Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Thu, 11 Sep 2014 13:18:37 +0300 Subject: [PATCH 110/172] mlx4: Correct error flows in rereg_mr This patch addresses feedback from Sagi Grimberg on the rereg_mr implementation of mlx4. The following are fixed: 1. Set the correct pd_flags 2. Make sure we change the iova and size MR fields only after successful write and allocation of the MTTs. 3. Make the error checking more robust Fixes: e630664c8383 ("mlx4_core: Add helper functions to support MR re-registration") Signed-off-by: Matan Barak Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/mr.c | 7 ++++-- drivers/net/ethernet/mellanox/mlx4/mr.c | 33 ++++++++++++++++--------- 2 files changed, 27 insertions(+), 13 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index 9b0e80e59b08..8f9325cfc85d 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -234,14 +234,13 @@ int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags, 0); if (IS_ERR(mmr->umem)) { err = PTR_ERR(mmr->umem); + /* Prevent mlx4_ib_dereg_mr from free'ing invalid pointer */ mmr->umem = NULL; goto release_mpt_entry; } n = ib_umem_page_count(mmr->umem); shift = ilog2(mmr->umem->page_size); - mmr->mmr.iova = virt_addr; - mmr->mmr.size = length; err = mlx4_mr_rereg_mem_write(dev->dev, &mmr->mmr, virt_addr, length, n, shift, *pmpt_entry); @@ -249,6 +248,8 @@ int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags, ib_umem_release(mmr->umem); goto release_mpt_entry; } + mmr->mmr.iova = virt_addr; + mmr->mmr.size = length; err = mlx4_ib_umem_write_mtt(dev, &mmr->mmr.mtt, mmr->umem); if (err) { @@ -262,6 +263,8 @@ int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags, * return a failure. But dereg_mr will free the resources. */ err = mlx4_mr_hw_write_mpt(dev->dev, &mmr->mmr, pmpt_entry); + if (!err && flags & IB_MR_REREG_ACCESS) + mmr->mmr.access = mr_access_flags; release_mpt_entry: mlx4_mr_hw_put_mpt(dev->dev, pmpt_entry); diff --git a/drivers/net/ethernet/mellanox/mlx4/mr.c b/drivers/net/ethernet/mellanox/mlx4/mr.c index 7d717eccb7b0..193a6adb5d04 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mr.c +++ b/drivers/net/ethernet/mellanox/mlx4/mr.c @@ -298,6 +298,7 @@ static int mlx4_HW2SW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); } +/* Must protect against concurrent access */ int mlx4_mr_hw_get_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr, struct mlx4_mpt_entry ***mpt_entry) { @@ -305,13 +306,10 @@ int mlx4_mr_hw_get_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr, int key = key_to_hw_index(mmr->key) & (dev->caps.num_mpts - 1); struct mlx4_cmd_mailbox *mailbox = NULL; - /* Make sure that at this point we have single-threaded access only */ - if (mmr->enabled != MLX4_MPT_EN_HW) return -EINVAL; err = mlx4_HW2SW_MPT(dev, NULL, key); - if (err) { mlx4_warn(dev, "HW2SW_MPT failed (%d).", err); mlx4_warn(dev, "Most likely the MR has MWs bound to it.\n"); @@ -333,7 +331,6 @@ int mlx4_mr_hw_get_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr, 0, MLX4_CMD_QUERY_MPT, MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); - if (err) goto free_mailbox; @@ -378,9 +375,10 @@ int mlx4_mr_hw_write_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr, err = mlx4_SW2HW_MPT(dev, mailbox, key); } - mmr->pd = be32_to_cpu((*mpt_entry)->pd_flags) & MLX4_MPT_PD_MASK; - if (!err) + if (!err) { + mmr->pd = be32_to_cpu((*mpt_entry)->pd_flags) & MLX4_MPT_PD_MASK; mmr->enabled = MLX4_MPT_EN_HW; + } return err; } EXPORT_SYMBOL_GPL(mlx4_mr_hw_write_mpt); @@ -400,11 +398,12 @@ EXPORT_SYMBOL_GPL(mlx4_mr_hw_put_mpt); int mlx4_mr_hw_change_pd(struct mlx4_dev *dev, struct mlx4_mpt_entry *mpt_entry, u32 pdn) { - u32 pd_flags = be32_to_cpu(mpt_entry->pd_flags); + u32 pd_flags = be32_to_cpu(mpt_entry->pd_flags) & ~MLX4_MPT_PD_MASK; /* The wrapper function will put the slave's id here */ if (mlx4_is_mfunc(dev)) pd_flags &= ~MLX4_MPT_PD_VF_MASK; - mpt_entry->pd_flags = cpu_to_be32((pd_flags & ~MLX4_MPT_PD_MASK) | + + mpt_entry->pd_flags = cpu_to_be32(pd_flags | (pdn & MLX4_MPT_PD_MASK) | MLX4_MPT_PD_FLAG_EN_INV); return 0; @@ -600,14 +599,18 @@ int mlx4_mr_rereg_mem_write(struct mlx4_dev *dev, struct mlx4_mr *mr, { int err; - mpt_entry->start = cpu_to_be64(mr->iova); - mpt_entry->length = cpu_to_be64(mr->size); - mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift); + mpt_entry->start = cpu_to_be64(iova); + mpt_entry->length = cpu_to_be64(size); + mpt_entry->entity_size = cpu_to_be32(page_shift); err = mlx4_mtt_init(dev, npages, page_shift, &mr->mtt); if (err) return err; + mpt_entry->pd_flags &= cpu_to_be32(MLX4_MPT_PD_MASK | + MLX4_MPT_PD_FLAG_EN_INV); + mpt_entry->flags &= cpu_to_be32(MLX4_MPT_FLAG_FREE | + MLX4_MPT_FLAG_SW_OWNS); if (mr->mtt.order < 0) { mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_PHYSICAL); mpt_entry->mtt_addr = 0; @@ -617,6 +620,14 @@ int mlx4_mr_rereg_mem_write(struct mlx4_dev *dev, struct mlx4_mr *mr, if (mr->mtt.page_shift == 0) mpt_entry->mtt_sz = cpu_to_be32(1 << mr->mtt.order); } + if (mr->mtt.order >= 0 && mr->mtt.page_shift == 0) { + /* fast register MR in free state */ + mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_FREE); + mpt_entry->pd_flags |= cpu_to_be32(MLX4_MPT_PD_FLAG_FAST_REG | + MLX4_MPT_PD_FLAG_RAE); + } else { + mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_SW_OWNS); + } mr->enabled = MLX4_MPT_EN_SW; return 0; From 1be528bcb88d0b854dda1d60b31f4f8f7310f034 Mon Sep 17 00:00:00 2001 From: "devesh.sharma@emulex.com" Date: Fri, 5 Sep 2014 15:09:48 +0530 Subject: [PATCH 111/172] RDMA/ocrdma: Resolve L2 address when creating user AH Because of IP-based GIDs, userspace AHs must have MAC and VLAN ID resolved separately. Presently, user AHs are broken for ocrdma. This patch resolves L2 addresses while creating user AH and obtains the right DMAC and VLAN ID before creating AH. Signed-off-by: Devesh Sharma Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ocrdma/ocrdma_ah.c | 41 +++++++++++++++++------- 1 file changed, 30 insertions(+), 11 deletions(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_ah.c b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c index 40f8536c10b0..a9f967d47575 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_ah.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c @@ -38,7 +38,7 @@ #define OCRDMA_VID_PCP_SHIFT 0xD static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah, - struct ib_ah_attr *attr, int pdid) + struct ib_ah_attr *attr, union ib_gid *sgid, int pdid) { int status = 0; u16 vlan_tag; bool vlan_enabled = false; @@ -49,8 +49,7 @@ static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah, memset(ð, 0, sizeof(eth)); memset(&grh, 0, sizeof(grh)); - ah->sgid_index = attr->grh.sgid_index; - + /* VLAN */ vlan_tag = attr->vlan_id; if (!vlan_tag || (vlan_tag > 0xFFF)) vlan_tag = dev->pvid; @@ -65,15 +64,14 @@ static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah, eth.eth_type = cpu_to_be16(OCRDMA_ROCE_ETH_TYPE); eth_sz = sizeof(struct ocrdma_eth_basic); } + /* MAC */ memcpy(ð.smac[0], &dev->nic_info.mac_addr[0], ETH_ALEN); - memcpy(ð.dmac[0], attr->dmac, ETH_ALEN); status = ocrdma_resolve_dmac(dev, attr, ð.dmac[0]); if (status) return status; - status = ocrdma_query_gid(&dev->ibdev, 1, attr->grh.sgid_index, - (union ib_gid *)&grh.sgid[0]); - if (status) - return status; + ah->sgid_index = attr->grh.sgid_index; + memcpy(&grh.sgid[0], sgid->raw, sizeof(union ib_gid)); + memcpy(&grh.dgid[0], attr->grh.dgid.raw, sizeof(attr->grh.dgid.raw)); grh.tclass_flow = cpu_to_be32((6 << 28) | (attr->grh.traffic_class << 24) | @@ -81,8 +79,7 @@ static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah, /* 0x1b is next header value in GRH */ grh.pdid_hoplimit = cpu_to_be32((pdid << 16) | (0x1b << 8) | attr->grh.hop_limit); - - memcpy(&grh.dgid[0], attr->grh.dgid.raw, sizeof(attr->grh.dgid.raw)); + /* Eth HDR */ memcpy(&ah->av->eth_hdr, ð, eth_sz); memcpy((u8 *)ah->av + eth_sz, &grh, sizeof(struct ocrdma_grh)); if (vlan_enabled) @@ -98,6 +95,8 @@ struct ib_ah *ocrdma_create_ah(struct ib_pd *ibpd, struct ib_ah_attr *attr) struct ocrdma_ah *ah; struct ocrdma_pd *pd = get_ocrdma_pd(ibpd); struct ocrdma_dev *dev = get_ocrdma_dev(ibpd->device); + union ib_gid sgid; + u8 zmac[ETH_ALEN]; if (!(attr->ah_flags & IB_AH_GRH)) return ERR_PTR(-EINVAL); @@ -111,7 +110,27 @@ struct ib_ah *ocrdma_create_ah(struct ib_pd *ibpd, struct ib_ah_attr *attr) status = ocrdma_alloc_av(dev, ah); if (status) goto av_err; - status = set_av_attr(dev, ah, attr, pd->id); + + status = ocrdma_query_gid(&dev->ibdev, 1, attr->grh.sgid_index, &sgid); + if (status) { + pr_err("%s(): Failed to query sgid, status = %d\n", + __func__, status); + goto av_conf_err; + } + + memset(&zmac, 0, ETH_ALEN); + if (pd->uctx && + memcmp(attr->dmac, &zmac, ETH_ALEN)) { + status = rdma_addr_find_dmac_by_grh(&sgid, &attr->grh.dgid, + attr->dmac, &attr->vlan_id); + if (status) { + pr_err("%s(): Failed to resolve dmac from gid." + "status = %d\n", __func__, status); + goto av_conf_err; + } + } + + status = set_av_attr(dev, ah, attr, &sgid, pd->id); if (status) goto av_conf_err; From f0c2c225dfe9dfb668fe72eadabb8a3ec74ca036 Mon Sep 17 00:00:00 2001 From: "devesh.sharma@emulex.com" Date: Fri, 5 Sep 2014 15:09:49 +0530 Subject: [PATCH 112/172] RDMA/ocrdma: Use right macro in query AH ocrdma_query_ah() does not use correct macro, and checks the wrong bit for the validity of address handle in vector table. Fix this. Signed-off-by: Devesh Sharma Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ocrdma/ocrdma_ah.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_ah.c b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c index a9f967d47575..ac02ce4e8040 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_ah.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c @@ -164,7 +164,7 @@ int ocrdma_query_ah(struct ib_ah *ibah, struct ib_ah_attr *attr) struct ocrdma_av *av = ah->av; struct ocrdma_grh *grh; attr->ah_flags |= IB_AH_GRH; - if (ah->av->valid & Bit(1)) { + if (ah->av->valid & OCRDMA_AV_VALID) { grh = (struct ocrdma_grh *)((u8 *)ah->av + sizeof(struct ocrdma_eth_vlan)); attr->sl = be16_to_cpu(av->eth_hdr.vlan_tag) >> 13; From c33b15f00bbfb9324dc38e5176f576a0f46e0873 Mon Sep 17 00:00:00 2001 From: Roi Dayan Date: Tue, 2 Sep 2014 17:08:41 +0300 Subject: [PATCH 113/172] IB/iser: Fix RX/TX CQ resource leak on error flow When failing to allocate TX CQ we already allocated RX CQ, so we need to make sure we release it. Also, when failing to register notification to the RX CQ we currently leak both RX and TX CQs of the current index, fix that too. Signed-off-by: Roi Dayan Signed-off-by: Sagi Grimberg Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iser_verbs.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 3ef167f97d6f..3bfec4bbda52 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -73,7 +73,7 @@ static int iser_create_device_ib_res(struct iser_device *device) { struct iser_cq_desc *cq_desc; struct ib_device_attr *dev_attr = &device->dev_attr; - int ret, i, j; + int ret, i; ret = ib_query_device(device->ib_device, dev_attr); if (ret) { @@ -125,16 +125,20 @@ static int iser_create_device_ib_res(struct iser_device *device) iser_cq_event_callback, (void *)&cq_desc[i], ISER_MAX_RX_CQ_LEN, i); - if (IS_ERR(device->rx_cq[i])) + if (IS_ERR(device->rx_cq[i])) { + device->rx_cq[i] = NULL; goto cq_err; + } device->tx_cq[i] = ib_create_cq(device->ib_device, NULL, iser_cq_event_callback, (void *)&cq_desc[i], ISER_MAX_TX_CQ_LEN, i); - if (IS_ERR(device->tx_cq[i])) + if (IS_ERR(device->tx_cq[i])) { + device->tx_cq[i] = NULL; goto cq_err; + } if (ib_req_notify_cq(device->rx_cq[i], IB_CQ_NEXT_COMP)) goto cq_err; @@ -160,14 +164,14 @@ static int iser_create_device_ib_res(struct iser_device *device) handler_err: ib_dereg_mr(device->mr); dma_mr_err: - for (j = 0; j < device->cqs_used; j++) - tasklet_kill(&device->cq_tasklet[j]); + for (i = 0; i < device->cqs_used; i++) + tasklet_kill(&device->cq_tasklet[i]); cq_err: - for (j = 0; j < i; j++) { - if (device->tx_cq[j]) - ib_destroy_cq(device->tx_cq[j]); - if (device->rx_cq[j]) - ib_destroy_cq(device->rx_cq[j]); + for (i = 0; i < device->cqs_used; i++) { + if (device->tx_cq[i]) + ib_destroy_cq(device->tx_cq[i]); + if (device->rx_cq[i]) + ib_destroy_cq(device->rx_cq[i]); } ib_dealloc_pd(device->pd); pd_err: From 91eb1df39a1fba21bbc28895a84630782cd442ed Mon Sep 17 00:00:00 2001 From: Sagi Grimberg Date: Tue, 2 Sep 2014 17:08:42 +0300 Subject: [PATCH 114/172] IB/iser: Allow bind only when connection state is UP We need to fail the bind operation if the iser connection state != UP (started teardown) and this should be done under the state lock. Signed-off-by: Sagi Grimberg Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iscsi_iser.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 61ee91d88380..93ce62fe1594 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -344,7 +344,6 @@ iscsi_iser_conn_bind(struct iscsi_cls_session *cls_session, int is_leading) { struct iscsi_conn *conn = cls_conn->dd_data; - struct iscsi_session *session; struct iser_conn *ib_conn; struct iscsi_endpoint *ep; int error; @@ -363,9 +362,17 @@ iscsi_iser_conn_bind(struct iscsi_cls_session *cls_session, } ib_conn = ep->dd_data; - session = conn->session; - if (iser_alloc_rx_descriptors(ib_conn, session)) - return -ENOMEM; + mutex_lock(&ib_conn->state_mutex); + if (ib_conn->state != ISER_CONN_UP) { + error = -EINVAL; + iser_err("iser_conn %p state is %d, teardown started\n", + ib_conn, ib_conn->state); + goto out; + } + + error = iser_alloc_rx_descriptors(ib_conn, conn->session); + if (error) + goto out; /* binds the iSER connection retrieved from the previously * connected ep_handle to the iSCSI layer connection. exchanges @@ -375,7 +382,9 @@ iscsi_iser_conn_bind(struct iscsi_cls_session *cls_session, conn->dd_data = ib_conn; ib_conn->iscsi_conn = conn; - return 0; +out: + mutex_unlock(&ib_conn->state_mutex); + return error; } static int From 61aabb3c91c1b03478ffc1a4a2573f825e7f35f9 Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Tue, 2 Sep 2014 17:08:43 +0300 Subject: [PATCH 115/172] IB/iser: Bump version to 1.4.1 Signed-off-by: Roi Dayan Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iscsi_iser.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index c877dad381cb..9f0e0e34d6ca 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -69,7 +69,7 @@ #define DRV_NAME "iser" #define PFX DRV_NAME ": " -#define DRV_VER "1.4" +#define DRV_VER "1.4.1" #define iser_dbg(fmt, arg...) \ do { \ From e381835cf1b8e3b2857277dbc3b77d8c5350f70a Mon Sep 17 00:00:00 2001 From: Moni Shoua Date: Thu, 21 Aug 2014 14:28:37 +0300 Subject: [PATCH 116/172] IB/mlx4: Avoid null pointer dereference in mlx4_ib_scan_netdevs() When Ethernet netdev is not present for a port (e.g. when the link layer type of the port is InfiniBand) it's possible to dereference a null pointer when we do netdevice scanning. To fix that, we move a section of code that needs to run only when netdev is present to a proper if () statement. Fixes: ad4885d279b6 ("IB/mlx4: Build the port IBoE GID table properly under bonding") Reported-by: Dan Carpenter Signed-off-by: Moni Shoua Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 49 ++++++++++++++++--------------- 1 file changed, 26 insertions(+), 23 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 20f731f08c7e..bf09d79afd4d 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1789,32 +1789,35 @@ static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev, port_state = (netif_running(curr_netdev) && netif_carrier_ok(curr_netdev)) ? IB_PORT_ACTIVE : IB_PORT_DOWN; mlx4_ib_set_default_gid(ibdev, curr_netdev, port); + /* if using bonding/team and a slave port is down, we + * don't the bond IP based gids in the table since + * flows that select port by gid may get the down port. + */ + if (curr_master && (port_state == IB_PORT_DOWN)) { + reset_gid_table(ibdev, port); + mlx4_ib_set_default_gid(ibdev, + curr_netdev, port); + } + /* if bonding is used it is possible that we add it to + * masters only after IP address is assigned to the + * net bonding interface. + */ + if (curr_master && (old_master != curr_master)) { + reset_gid_table(ibdev, port); + mlx4_ib_set_default_gid(ibdev, + curr_netdev, port); + mlx4_ib_get_dev_addr(curr_master, ibdev, port); + } + + if (!curr_master && (old_master != curr_master)) { + reset_gid_table(ibdev, port); + mlx4_ib_set_default_gid(ibdev, + curr_netdev, port); + mlx4_ib_get_dev_addr(curr_netdev, ibdev, port); + } } else { reset_gid_table(ibdev, port); } - /* if using bonding/team and a slave port is down, we don't the bond IP - * based gids in the table since flows that select port by gid may get - * the down port. - */ - if (curr_master && (port_state == IB_PORT_DOWN)) { - reset_gid_table(ibdev, port); - mlx4_ib_set_default_gid(ibdev, curr_netdev, port); - } - /* if bonding is used it is possible that we add it to masters - * only after IP address is assigned to the net bonding - * interface. - */ - if (curr_master && (old_master != curr_master)) { - reset_gid_table(ibdev, port); - mlx4_ib_set_default_gid(ibdev, curr_netdev, port); - mlx4_ib_get_dev_addr(curr_master, ibdev, port); - } - - if (!curr_master && (old_master != curr_master)) { - reset_gid_table(ibdev, port); - mlx4_ib_set_default_gid(ibdev, curr_netdev, port); - mlx4_ib_get_dev_addr(curr_netdev, ibdev, port); - } } spin_unlock(&iboe->lock); From f5c4834d9328c4ed9fe5dcbec6128d6da16db69a Mon Sep 17 00:00:00 2001 From: Moni Shoua Date: Thu, 21 Aug 2014 14:28:38 +0300 Subject: [PATCH 117/172] IB/mlx4: Don't duplicate the default RoCE GID When reading the IPv6 addresses from the net-device, make sure to avoid adding a duplicate entry to the GID table because of equality between the default GID we generate and the default IPv6 link-local address of the device. Fixes: acc4fccf4eff ("IB/mlx4: Make sure GID index 0 is always occupied") Signed-off-by: Moni Shoua Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index bf09d79afd4d..16fb2327813a 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1679,6 +1679,7 @@ static void mlx4_ib_get_dev_addr(struct net_device *dev, struct inet6_dev *in6_dev; union ib_gid *pgid; struct inet6_ifaddr *ifp; + union ib_gid default_gid; #endif union ib_gid gid; @@ -1699,12 +1700,15 @@ static void mlx4_ib_get_dev_addr(struct net_device *dev, in_dev_put(in_dev); } #if IS_ENABLED(CONFIG_IPV6) + mlx4_make_default_gid(dev, &default_gid); /* IPv6 gids */ in6_dev = in6_dev_get(dev); if (in6_dev) { read_lock_bh(&in6_dev->lock); list_for_each_entry(ifp, &in6_dev->addr_list, if_list) { pgid = (union ib_gid *)&ifp->addr; + if (!memcmp(pgid, &default_gid, sizeof(*pgid))) + continue; update_gid_table(ibdev, port, pgid, 0, 0); } read_unlock_bh(&in6_dev->lock); From 655b2aaefc353604f9975c31960d9722e6eda449 Mon Sep 17 00:00:00 2001 From: Moni Shoua Date: Thu, 21 Aug 2014 14:28:39 +0300 Subject: [PATCH 118/172] IB/mlx4: Reorder steps in RoCE GID table initialization There's no need to reset the gid table twice and we need to do it only for Ethernet ports. Also, no need to actively scan ndetdevs since it's being done immediatly after we register netdev notifiers. Signed-off-by: Moni Shoua Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 16fb2327813a..49965b692042 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1730,24 +1730,33 @@ static int mlx4_ib_init_gid_table(struct mlx4_ib_dev *ibdev) struct net_device *dev; struct mlx4_ib_iboe *iboe = &ibdev->iboe; int i; + int err = 0; - for (i = 1; i <= ibdev->num_ports; ++i) - if (reset_gid_table(ibdev, i)) - return -1; + for (i = 1; i <= ibdev->num_ports; ++i) { + if (rdma_port_get_link_layer(&ibdev->ib_dev, i) == + IB_LINK_LAYER_ETHERNET) { + err = reset_gid_table(ibdev, i); + if (err) + goto out; + } + } read_lock(&dev_base_lock); spin_lock(&iboe->lock); for_each_netdev(&init_net, dev) { u8 port = mlx4_ib_get_dev_port(dev, ibdev); - if (port) + /* port will be non-zero only for ETH ports */ + if (port) { + mlx4_ib_set_default_gid(ibdev, dev, port); mlx4_ib_get_dev_addr(dev, ibdev, port); + } } spin_unlock(&iboe->lock); read_unlock(&dev_base_lock); - - return 0; +out: + return err; } static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev, @@ -2202,12 +2211,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) } } #endif - for (i = 1 ; i <= ibdev->num_ports ; ++i) - reset_gid_table(ibdev, i); - rtnl_lock(); - mlx4_ib_scan_netdevs(ibdev, NULL, 0); - rtnl_unlock(); - mlx4_ib_init_gid_table(ibdev); + if (mlx4_ib_init_gid_table(ibdev)) + goto err_notif; } for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) { From bccb84f1dfab92ed180adf09c76cfa9ddc90edb9 Mon Sep 17 00:00:00 2001 From: Moni Shoua Date: Thu, 21 Aug 2014 14:28:40 +0300 Subject: [PATCH 119/172] IB/mlx4: Get upper dev addresses as RoCE GIDs when port comes up When a RoCE port becomes active and the netdev of the port has upper device (e.g bond/team), GIDs derived from the upper dev should appear in the port's RoCE GID table. Signed-off-by: Moni Shoua Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 49965b692042..d404a2eafa79 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1802,14 +1802,23 @@ static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev, port_state = (netif_running(curr_netdev) && netif_carrier_ok(curr_netdev)) ? IB_PORT_ACTIVE : IB_PORT_DOWN; mlx4_ib_set_default_gid(ibdev, curr_netdev, port); - /* if using bonding/team and a slave port is down, we - * don't the bond IP based gids in the table since - * flows that select port by gid may get the down port. - */ - if (curr_master && (port_state == IB_PORT_DOWN)) { - reset_gid_table(ibdev, port); - mlx4_ib_set_default_gid(ibdev, - curr_netdev, port); + if (curr_master) { + /* if using bonding/team and a slave port is down, we + * don't want the bond IP based gids in the table since + * flows that select port by gid may get the down port. + */ + if (port_state == IB_PORT_DOWN) { + reset_gid_table(ibdev, port); + mlx4_ib_set_default_gid(ibdev, + curr_netdev, + port); + } else { + /* gids from the upper dev (bond/team) + * should appear in port's gid table + */ + mlx4_ib_get_dev_addr(curr_master, + ibdev, port); + } } /* if bonding is used it is possible that we add it to * masters only after IP address is assigned to the From dba3ad2addcd74ec850e510f3b8a9d046cc24ef3 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Thu, 21 Aug 2014 14:28:41 +0300 Subject: [PATCH 120/172] IB/mlx4: Fix lockdep splat for the iboe lock Chuck Lever reported the following stack trace: ================================= [ INFO: inconsistent lock state ] 3.16.0-rc2-00024-g2e78883 #17 Tainted: G E --------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes: (&(&iboe->lock)->rlock){+.?...}, at: [] mlx4_ib_addr_event+0xdb/0x1a0 [mlx4_ib] {SOFTIRQ-ON-W} state was registered at: [] mark_irqflags+0x110/0x170 [] __lock_acquire+0x2c6/0x5b0 [] lock_acquire+0xe9/0x120 [] _raw_spin_lock+0x3e/0x80 [] mlx4_ib_scan_netdevs+0x34/0x260 [mlx4_ib] [] mlx4_ib_netdev_event+0x2b/0x40 [mlx4_ib] [] register_netdevice_notifier+0x99/0x1e0 [] mlx4_ib_add+0x743/0xbc0 [mlx4_ib] [] mlx4_add_device+0x48/0xa0 [mlx4_core] [] mlx4_register_interface+0x73/0xb0 [mlx4_core] [] cm_req_handler+0x13e/0x460 [ib_cm] [] do_one_initcall+0x112/0x1c0 [] do_init_module+0x34/0x190 [] load_module+0x5cf/0x740 [] SyS_init_module+0x99/0xd0 [] system_call_fastpath+0x16/0x1b irq event stamp: 336142 hardirqs last enabled at (336142): [] __local_bh_enable_ip+0xb5/0xc0 hardirqs last disabled at (336141): [] __local_bh_enable_ip+0x56/0xc0 softirqs last enabled at (336004): [] _local_bh_enable+0x4a/0x50 softirqs last disabled at (336005): [] irq_exit+0x44/0xd0 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&iboe->lock)->rlock); lock(&(&iboe->lock)->rlock); *** DEADLOCK *** The above problem was caused by the spin lock being taken both in the process context and in a soft-irq context (in a netdev notifier handler). The required fix is to use spin_lock/unlock_bh() instead of spin_lock/unlock on the iboe lock. Reported-by: Chuck Lever Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index d404a2eafa79..c231112396b2 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -360,7 +360,7 @@ static int eth_link_query_port(struct ib_device *ibdev, u8 port, props->state = IB_PORT_DOWN; props->phys_state = state_to_phys_state(props->state); props->active_mtu = IB_MTU_256; - spin_lock(&iboe->lock); + spin_lock_bh(&iboe->lock); ndev = iboe->netdevs[port - 1]; if (!ndev) goto out_unlock; @@ -372,7 +372,7 @@ static int eth_link_query_port(struct ib_device *ibdev, u8 port, IB_PORT_ACTIVE : IB_PORT_DOWN; props->phys_state = state_to_phys_state(props->state); out_unlock: - spin_unlock(&iboe->lock); + spin_unlock_bh(&iboe->lock); out: mlx4_free_cmd_mailbox(mdev->dev, mailbox); return err; @@ -814,11 +814,11 @@ int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, if (!mqp->port) return 0; - spin_lock(&mdev->iboe.lock); + spin_lock_bh(&mdev->iboe.lock); ndev = mdev->iboe.netdevs[mqp->port - 1]; if (ndev) dev_hold(ndev); - spin_unlock(&mdev->iboe.lock); + spin_unlock_bh(&mdev->iboe.lock); if (ndev) { ret = 1; @@ -1265,11 +1265,11 @@ static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) mutex_lock(&mqp->mutex); ge = find_gid_entry(mqp, gid->raw); if (ge) { - spin_lock(&mdev->iboe.lock); + spin_lock_bh(&mdev->iboe.lock); ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL; if (ndev) dev_hold(ndev); - spin_unlock(&mdev->iboe.lock); + spin_unlock_bh(&mdev->iboe.lock); if (ndev) dev_put(ndev); list_del(&ge->list); @@ -1554,7 +1554,7 @@ static int mlx4_ib_addr_event(int event, struct net_device *event_netdev, return 0; iboe = &ibdev->iboe; - spin_lock(&iboe->lock); + spin_lock_bh(&iboe->lock); for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) if ((netif_is_bond_master(real_dev) && @@ -1564,7 +1564,7 @@ static int mlx4_ib_addr_event(int event, struct net_device *event_netdev, update_gid_table(ibdev, port, gid, event == NETDEV_DOWN, 0); - spin_unlock(&iboe->lock); + spin_unlock_bh(&iboe->lock); return 0; } @@ -1742,7 +1742,7 @@ static int mlx4_ib_init_gid_table(struct mlx4_ib_dev *ibdev) } read_lock(&dev_base_lock); - spin_lock(&iboe->lock); + spin_lock_bh(&iboe->lock); for_each_netdev(&init_net, dev) { u8 port = mlx4_ib_get_dev_port(dev, ibdev); @@ -1753,7 +1753,7 @@ static int mlx4_ib_init_gid_table(struct mlx4_ib_dev *ibdev) } } - spin_unlock(&iboe->lock); + spin_unlock_bh(&iboe->lock); read_unlock(&dev_base_lock); out: return err; @@ -1770,7 +1770,7 @@ static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev, iboe = &ibdev->iboe; - spin_lock(&iboe->lock); + spin_lock_bh(&iboe->lock); mlx4_foreach_ib_transport_port(port, ibdev->dev) { enum ib_port_state port_state = IB_PORT_NOP; struct net_device *old_master = iboe->masters[port - 1]; @@ -1842,7 +1842,7 @@ static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev, } } - spin_unlock(&iboe->lock); + spin_unlock_bh(&iboe->lock); if (update_qps_port > 0) mlx4_ib_update_qps(ibdev, dev, update_qps_port); From 4bf9715f184969dc703bde7be94919995024a6a9 Mon Sep 17 00:00:00 2001 From: Moni Shoua Date: Thu, 21 Aug 2014 14:28:42 +0300 Subject: [PATCH 121/172] IB/mlx4: Avoid executing gid task when device is being removed When device is being removed (e.g during VPI port link type change from ETH to IB), tasks for gid table changes should not be executed. Flush the current queue of tasks and block further tasks from entering the queue. Signed-off-by: Moni Shoua Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index c231112396b2..c61bcee9ee8a 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1390,6 +1390,9 @@ static void update_gids_task(struct work_struct *work) int err; struct mlx4_dev *dev = gw->dev->dev; + if (!gw->dev->ib_active) + return; + mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) { pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox)); @@ -1420,6 +1423,9 @@ static void reset_gids_task(struct work_struct *work) int err; struct mlx4_dev *dev = gw->dev->dev; + if (!gw->dev->ib_active) + return; + mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) { pr_warn("reset gid table failed\n"); @@ -2369,6 +2375,9 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) struct mlx4_ib_dev *ibdev = ibdev_ptr; int p; + ibdev->ib_active = false; + flush_workqueue(wq); + mlx4_ib_close_sriov(ibdev); mlx4_ib_mad_cleanup(ibdev); ib_unregister_device(&ibdev->ib_dev); From a59c5850f09b4c2d6ad2fc47e5e1be8d654529d6 Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Tue, 2 Sep 2014 15:32:34 +0300 Subject: [PATCH 122/172] IB/core: When marshaling uverbs path, clear unused fields When marsheling a user path to the kernel struct ib_sa_path, need to zero smac, dmac and set the vlan id to the "no vlan" value. Fixes: dd5f03beb4f7 ("IB/core: Ethernet L2 attributes in verbs/cm structures") Reported-by: Aleksey Senin Signed-off-by: Matan Barak Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/core/uverbs_marshall.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/infiniband/core/uverbs_marshall.c b/drivers/infiniband/core/uverbs_marshall.c index e7bee46868d1..abd97247443e 100644 --- a/drivers/infiniband/core/uverbs_marshall.c +++ b/drivers/infiniband/core/uverbs_marshall.c @@ -140,5 +140,9 @@ void ib_copy_path_rec_from_user(struct ib_sa_path_rec *dst, dst->packet_life_time = src->packet_life_time; dst->preference = src->preference; dst->packet_life_time_selector = src->packet_life_time_selector; + + memset(dst->smac, 0, sizeof(dst->smac)); + memset(dst->dmac, 0, sizeof(dst->dmac)); + dst->vlan_id = 0xffff; } EXPORT_SYMBOL(ib_copy_path_rec_from_user); From f4fd40b26bd597e203639281859a758402550d62 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Thu, 11 Sep 2014 14:11:16 +0300 Subject: [PATCH 123/172] mlx4: Fix mlx4 reg/unreg mac to work properly with 0-mac addresses There is a chance that the VF mlx4 RoCE driver (mlx4_ib) may see a 0-mac as the current default MAC address when a RoCE interface first comes up. In this case, the RoCE driver registers the 0-mac to get its MAC index -- used in the INIT2RTR transition when it creates its proxy Q1 qp's. If we do not allow QP1 to be created, the RoCE driver will not come up. If we do not register the 0-mac, but simply use a random mac-index, QP1 will attempt to send packets with an someone's else source MAC which will get the system into more troubled. Since a 0-mac was previously used to indicate a free slot, this leads to errors, both when the 0-mac is registered and when it is unregistered. The required fix is to check in addition that the slot containing the 0-mac has a reference count of zero. Additionally, when comparing MAC addresses, need to mask out the 2 MSBs of the u64 mac on both sides of the comparison. Note that when the EN driver (mlx4_en) comes up, it set itself a proper mac --> the RoCE driver gets to be notified on that and further handing is done with the update qp command, as was added by commit 9433c188915c ("IB/mlx4: Invoke UPDATE_QP for proxy QP1 on MAC changes"). Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/net/ethernet/mellanox/mlx4/port.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c index 9ba0c1ca10d5..94eeb2c7d7e4 100644 --- a/drivers/net/ethernet/mellanox/mlx4/port.c +++ b/drivers/net/ethernet/mellanox/mlx4/port.c @@ -103,7 +103,8 @@ static int find_index(struct mlx4_dev *dev, int i; for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { - if ((mac & MLX4_MAC_MASK) == + if (table->refs[i] && + (MLX4_MAC_MASK & mac) == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) return i; } @@ -165,12 +166,14 @@ int __mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac) mutex_lock(&table->mutex); for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { - if (free < 0 && !table->entries[i]) { - free = i; + if (!table->refs[i]) { + if (free < 0) + free = i; continue; } - if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) { + if ((MLX4_MAC_MASK & mac) == + (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) { /* MAC already registered, increment ref count */ err = i; ++table->refs[i]; From 3e0629cb6c0518423c9e2671bbe8ec15dde5dcaf Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Thu, 11 Sep 2014 14:11:17 +0300 Subject: [PATCH 124/172] IB/mlx4: Avoid accessing netdevice when building RoCE qp1 header The source MAC is needed in RoCE when building the QP1 header. Currently, this is obtained from the source net device. However, the net device may not yet exist, or can be destroyed in parallel to this QP1 send operation (e.g through the VPI port change flow) so accessing it may cause a kernel crash. To fix this, we maintain a source MAC cache per port for the net device in struct mlx4_ib_roce. This cached MAC is initialized to be the default MAC address obtained during HCA initialization via QUERY_PORT. This cached MAC is updated via the netdev event notifier handler. Since the cached MAC is held in an atomic64 object, we do not need locking when accessing it. Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 5 ++++ drivers/infiniband/hw/mlx4/mlx4_ib.h | 1 + drivers/infiniband/hw/mlx4/qp.c | 38 ++++++++++++++++------------ 3 files changed, 28 insertions(+), 16 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index c61bcee9ee8a..657ce0f810fd 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1643,6 +1643,8 @@ static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev, new_smac = mlx4_mac_to_u64(dev->dev_addr); read_unlock(&dev_base_lock); + atomic64_set(&ibdev->iboe.mac[port - 1], new_smac); + mutex_lock(&ibdev->qp1_proxy_lock[port - 1]); qp = ibdev->qp1_proxy[port - 1]; if (qp) { @@ -2190,6 +2192,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) goto err_steer_free_bitmap; } + for (j = 1; j <= ibdev->dev->caps.num_ports; j++) + atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]); + if (ib_register_device(&ibdev->ib_dev, NULL)) goto err_steer_free_bitmap; diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h index e8cad3926bfc..6eb743f65f6f 100644 --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h @@ -451,6 +451,7 @@ struct mlx4_ib_iboe { spinlock_t lock; struct net_device *netdevs[MLX4_MAX_PORTS]; struct net_device *masters[MLX4_MAX_PORTS]; + atomic64_t mac[MLX4_MAX_PORTS]; struct notifier_block nb; struct notifier_block nb_inet; struct notifier_block nb_inet6; diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 67780452f0cf..25e0208588e6 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1390,18 +1390,10 @@ static void update_mcg_macs(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp) static int handle_eth_ud_smac_index(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp, u8 *smac, struct mlx4_qp_context *context) { - struct net_device *ndev; u64 u64_mac; int smac_index; - - ndev = dev->iboe.netdevs[qp->port - 1]; - if (ndev) { - smac = ndev->dev_addr; - u64_mac = mlx4_mac_to_u64(smac); - } else { - u64_mac = dev->dev->caps.def_mac[qp->port]; - } + u64_mac = atomic64_read(&dev->iboe.mac[qp->port - 1]); context->pri_path.sched_queue = MLX4_IB_DEFAULT_SCHED_QUEUE | ((qp->port - 1) << 6); if (!qp->pri.smac) { @@ -2083,6 +2075,16 @@ static int build_sriov_qp0_header(struct mlx4_ib_sqp *sqp, return 0; } +static void mlx4_u64_to_smac(u8 *dst_mac, u64 src_mac) +{ + int i; + + for (i = ETH_ALEN; i; i--) { + dst_mac[i - 1] = src_mac & 0xff; + src_mac >>= 8; + } +} + static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr, void *wqe, unsigned *mlx_seg_len) { @@ -2197,7 +2199,6 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr, } if (is_eth) { - u8 *smac; struct in6_addr in6; u16 pcp = (be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 29) << 13; @@ -2210,12 +2211,17 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr, memcpy(&ctrl->imm, ah->av.eth.mac + 2, 4); memcpy(&in6, sgid.raw, sizeof(in6)); - if (!mlx4_is_mfunc(to_mdev(ib_dev)->dev)) - smac = to_mdev(sqp->qp.ibqp.device)-> - iboe.netdevs[sqp->qp.port - 1]->dev_addr; - else /* use the src mac of the tunnel */ - smac = ah->av.eth.s_mac; - memcpy(sqp->ud_header.eth.smac_h, smac, 6); + if (!mlx4_is_mfunc(to_mdev(ib_dev)->dev)) { + u64 mac = atomic64_read(&to_mdev(ib_dev)->iboe.mac[sqp->qp.port - 1]); + u8 smac[ETH_ALEN]; + + mlx4_u64_to_smac(smac, mac); + memcpy(sqp->ud_header.eth.smac_h, smac, ETH_ALEN); + } else { + /* use the src mac of the tunnel */ + memcpy(sqp->ud_header.eth.smac_h, ah->av.eth.s_mac, ETH_ALEN); + } + if (!memcmp(sqp->ud_header.eth.smac_h, sqp->ud_header.eth.dmac_h, 6)) mlx->flags |= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK); if (!is_vlan) { From d24d9f43384b5933867a5786934e130efa8b5c92 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Thu, 11 Sep 2014 14:11:18 +0300 Subject: [PATCH 125/172] IB/mlx4: Don't update QP1 in native mode For native functions (non-SR-IOV), there's no reason to update the smac_index, as QP1 is a GSI QP. Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 657ce0f810fd..6ad7f7a0e464 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1645,6 +1645,10 @@ static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev, atomic64_set(&ibdev->iboe.mac[port - 1], new_smac); + /* no need for update QP1 and mac registration in non-SRIOV */ + if (!mlx4_is_mfunc(ibdev->dev)) + return; + mutex_lock(&ibdev->qp1_proxy_lock[port - 1]); qp = ibdev->qp1_proxy[port - 1]; if (qp) { From 3dec48788817fce4a029cbab14f2b407ae78478f Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Thu, 11 Sep 2014 14:11:19 +0300 Subject: [PATCH 126/172] IB/mlx4: Do not allow APM under RoCE Automatic Path Migration is not supported under RoCE. Therefore, return a "not-supported" error if the caller attempts to set an alternate path in a QP context. In addition, if there are no IB ports configured, do not report APM capability in the device flags returned by mlx4_ib_query_device. Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 16 +++++++++++++++- drivers/infiniband/hw/mlx4/qp.c | 6 ++++++ 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 6ad7f7a0e464..d57563b9d1fb 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -120,6 +120,17 @@ static int check_flow_steering_support(struct mlx4_dev *dev) return dmfs; } +static int num_ib_ports(struct mlx4_dev *dev) +{ + int ib_ports = 0; + int i; + + mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) + ib_ports++; + + return ib_ports; +} + static int mlx4_ib_query_device(struct ib_device *ibdev, struct ib_device_attr *props) { @@ -127,6 +138,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, struct ib_smp *in_mad = NULL; struct ib_smp *out_mad = NULL; int err = -ENOMEM; + int have_ib_ports; in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); @@ -143,6 +155,8 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, memset(props, 0, sizeof *props); + have_ib_ports = num_ib_ports(dev->dev); + props->fw_ver = dev->dev->caps.fw_ver; props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | IB_DEVICE_PORT_ACTIVE_EVENT | @@ -153,7 +167,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; - if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM) + if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM && have_ib_ports) props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 25e0208588e6..393423c69c00 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1424,6 +1424,12 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp, int steer_qp = 0; int err = -EINVAL; + /* APM is not supported under RoCE */ + if (attr_mask & IB_QP_ALT_PATH && + rdma_port_get_link_layer(&dev->ib_dev, qp->port) == + IB_LINK_LAYER_ETHERNET) + return -ENOTSUPP; + context = kzalloc(sizeof *context, GFP_KERNEL); if (!context) return -ENOMEM; From 25476b0209b2e48dfb689e1b4cf7278875082b1f Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Thu, 11 Sep 2014 14:11:20 +0300 Subject: [PATCH 127/172] IB/mlx4: Fix VF mac handling in RoCE We had several problems here. First, a race condition on QP1 mac handling between mlx4_ib_update_qps and mlx4_ib_modify_qp, which is fixed by taking the qp mutex in mlx4_ib_update_qps. Also, qp->pri.smac_port was not updated in mlx4_ib_update_qps. Last, in __mlx4_ib_modify_qp we did not properly handle the case where the mac is zero, but port is non-zero. Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 15 ++++++++++----- drivers/infiniband/hw/mlx4/qp.c | 16 ++++++++++------ 2 files changed, 20 insertions(+), 11 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index d57563b9d1fb..c7586a1cec30 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1667,9 +1667,11 @@ static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev, qp = ibdev->qp1_proxy[port - 1]; if (qp) { int new_smac_index; - u64 old_smac = qp->pri.smac; + u64 old_smac; struct mlx4_update_qp_params update_params; + mutex_lock(&qp->mutex); + old_smac = qp->pri.smac; if (new_smac == old_smac) goto unlock; @@ -1684,17 +1686,20 @@ static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev, release_mac = new_smac; goto unlock; } - + /* if old port was zero, no mac was yet registered for this QP */ + if (qp->pri.smac_port) + release_mac = old_smac; qp->pri.smac = new_smac; + qp->pri.smac_port = port; qp->pri.smac_index = new_smac_index; - - release_mac = old_smac; } unlock: - mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]); if (release_mac != MLX4_IB_INVALID_MAC) mlx4_unregister_mac(ibdev->dev, port, release_mac); + if (qp) + mutex_unlock(&qp->mutex); + mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]); } static void mlx4_ib_get_dev_addr(struct net_device *dev, diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 393423c69c00..577b477cfaa6 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -964,9 +964,10 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp, MLX4_QP_STATE_RST, NULL, 0, 0, &qp->mqp)) pr_warn("modify QP %06x to RESET failed.\n", qp->mqp.qpn); - if (qp->pri.smac) { + if (qp->pri.smac || (!qp->pri.smac && qp->pri.smac_port)) { mlx4_unregister_mac(dev->dev, qp->pri.smac_port, qp->pri.smac); qp->pri.smac = 0; + qp->pri.smac_port = 0; } if (qp->alt.smac) { mlx4_unregister_mac(dev->dev, qp->alt.smac_port, qp->alt.smac); @@ -1325,7 +1326,8 @@ static int _mlx4_set_path(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah, * If one was already assigned, but the new mac differs, * unregister the old one and register the new one. */ - if (!smac_info->smac || smac_info->smac != smac) { + if ((!smac_info->smac && !smac_info->smac_port) || + smac_info->smac != smac) { /* register candidate now, unreg if needed, after success */ smac_index = mlx4_register_mac(dev->dev, port, smac); if (smac_index >= 0) { @@ -1396,7 +1398,7 @@ static int handle_eth_ud_smac_index(struct mlx4_ib_dev *dev, struct mlx4_ib_qp * u64_mac = atomic64_read(&dev->iboe.mac[qp->port - 1]); context->pri_path.sched_queue = MLX4_IB_DEFAULT_SCHED_QUEUE | ((qp->port - 1) << 6); - if (!qp->pri.smac) { + if (!qp->pri.smac && !qp->pri.smac_port) { smac_index = mlx4_register_mac(dev->dev, qp->port, u64_mac); if (smac_index >= 0) { qp->pri.candidate_smac_index = smac_index; @@ -1778,9 +1780,10 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp, if (qp->flags & MLX4_IB_QP_NETIF) mlx4_ib_steer_qp_reg(dev, qp, 0); } - if (qp->pri.smac) { + if (qp->pri.smac || (!qp->pri.smac && qp->pri.smac_port)) { mlx4_unregister_mac(dev->dev, qp->pri.smac_port, qp->pri.smac); qp->pri.smac = 0; + qp->pri.smac_port = 0; } if (qp->alt.smac) { mlx4_unregister_mac(dev->dev, qp->alt.smac_port, qp->alt.smac); @@ -1804,11 +1807,12 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp, if (err && steer_qp) mlx4_ib_steer_qp_reg(dev, qp, 0); kfree(context); - if (qp->pri.candidate_smac) { + if (qp->pri.candidate_smac || + (!qp->pri.candidate_smac && qp->pri.candidate_smac_port)) { if (err) { mlx4_unregister_mac(dev->dev, qp->pri.candidate_smac_port, qp->pri.candidate_smac); } else { - if (qp->pri.smac) + if (qp->pri.smac || (!qp->pri.smac && qp->pri.smac_port)) mlx4_unregister_mac(dev->dev, qp->pri.smac_port, qp->pri.smac); qp->pri.smac = qp->pri.candidate_smac; qp->pri.smac_index = qp->pri.candidate_smac_index; From df568d8e5250bf24e38c69ad4374baf0f8d279ba Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 22 Sep 2014 13:14:33 -0400 Subject: [PATCH 128/172] scsi: Use 'depends' with LIBFC instead of 'select'. LIBFC depends upon SCSI_FC_ATTRS and select's CRC32C. The only alternative would be to 'select' CRC32C and all of SCSI_FC_ATTRS direct and indirect dependencies in the Kconfig section for every LIBFCOE user which makes little sense. Subsequently, use 'depends' instead of 'select' for LIBFCOE too. Signed-off-by: David S. Miller --- drivers/scsi/Kconfig | 6 +++--- drivers/scsi/bnx2fc/Kconfig | 4 ++-- drivers/scsi/qla2xxx/Kconfig | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index b7450122837d..bd85fb4978e0 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -592,21 +592,21 @@ config LIBFC config LIBFCOE tristate "LibFCoE module" - select LIBFC + depends on LIBFC ---help--- Library for Fibre Channel over Ethernet module config FCOE tristate "FCoE module" depends on PCI - select LIBFCOE + depends on LIBFCOE ---help--- Fibre Channel over Ethernet module config FCOE_FNIC tristate "Cisco FNIC Driver" depends on PCI && X86 - select LIBFCOE + depends on LIBFCOE help This is support for the Cisco PCI-Express FCoE HBA. diff --git a/drivers/scsi/bnx2fc/Kconfig b/drivers/scsi/bnx2fc/Kconfig index 02b0ba8e49e9..097882882649 100644 --- a/drivers/scsi/bnx2fc/Kconfig +++ b/drivers/scsi/bnx2fc/Kconfig @@ -2,11 +2,11 @@ config SCSI_BNX2X_FCOE tristate "QLogic NetXtreme II FCoE support" depends on PCI depends on (IPV6 || IPV6=n) + depends on LIBFC + depends on LIBFCOE select NETDEVICES select ETHERNET select NET_VENDOR_BROADCOM - select LIBFC - select LIBFCOE select CNIC ---help--- This driver supports FCoE offload for the QLogic NetXtreme II diff --git a/drivers/scsi/qla2xxx/Kconfig b/drivers/scsi/qla2xxx/Kconfig index 7d65776a1df5..113e6c9826a1 100644 --- a/drivers/scsi/qla2xxx/Kconfig +++ b/drivers/scsi/qla2xxx/Kconfig @@ -31,7 +31,7 @@ config SCSI_QLA_FC config TCM_QLA2XXX tristate "TCM_QLA2XXX fabric module for Qlogic 2xxx series target mode HBAs" depends on SCSI_QLA_FC && TARGET_CORE - select LIBFC + depends on LIBFC select BTREE default n ---help--- From 4e5f9ef380b00871995d638c03e7ae7c67244e31 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 22 Sep 2014 13:25:51 -0400 Subject: [PATCH 129/172] pch_gbe: 'select' NET_PTP_CLASSIFY. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes the following randconfig build failure: > drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c: In function > ‘pch_ptp_match’: > drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c:130:2: error: > implicit declaration of function ‘ptp_classify_raw’ > [-Werror=implicit-function-declaration] > if (ptp_classify_raw(skb) == PTP_CLASS_NONE) > ^ > cc1: some warnings being treated as errors > make[5]: *** [drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.o] Error 1 Reported-by: Jim Davis Signed-off-by: David S. Miller --- drivers/net/ethernet/oki-semi/pch_gbe/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig index 44c8be1c6805..5f7a35212796 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig +++ b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig @@ -7,6 +7,7 @@ config PCH_GBE depends on PCI && (X86_32 || COMPILE_TEST) select MII select PTP_1588_CLOCK_PCH + select NET_PTP_CLASSIFY ---help--- This is a gigabit ethernet driver for EG20T PCH. EG20T PCH is the platform controller hub that is used in Intel's From 538b75341835e3c2041ff066408de10d24fdc830 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 16 Sep 2014 10:37:37 -0600 Subject: [PATCH 130/172] blk-mq: request deadline must be visible before marking rq as started When we start the request, we set the deadline and flip the bits marking the request as started and non-complete. However, it's important that the deadline store is ordered before flipping the bits, otherwise we could have a small window where the request is marked started but with an invalid deadline. This can confuse the timeout handling. Suggested-by: Ming Lei Signed-off-by: Jens Axboe --- block/blk-mq.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/block/blk-mq.c b/block/blk-mq.c index 383ea0cb1f0a..a13c40ca8230 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -392,6 +392,12 @@ static void blk_mq_start_request(struct request *rq, bool last) blk_add_timer(rq); + /* + * Ensure that ->deadline is visible before set the started + * flag and clear the completed flag. + */ + smp_mb__before_atomic(); + /* * Mark us as started and clear complete. Complete might have been * set if requeue raced with timeout, which then marked it as From 683d0e126232d898a481daa3a4ca032c2b1a9660 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Thu, 18 Sep 2014 11:04:31 +0200 Subject: [PATCH 131/172] blk-mq: Avoid race condition with uninitialized requests This patch should fix the bug reported in https://lkml.org/lkml/2014/9/11/249. We have to initialize at least the atomic_flags and the cmd_flags when allocating storage for the requests. Otherwise blk_mq_timeout_check() might dereference uninitialized pointers when racing with the creation of a request. Also move the reset of cmd_flags for the initializing code to the point where a request is freed. So we will never end up with pending flush request indicators that might trigger dereferences of invalid pointers in blk_mq_timeout_check(). Cc: stable@vger.kernel.org Signed-off-by: David Hildenbrand Reported-by: Paulo De Rezende Pinatti Tested-by: Paulo De Rezende Pinatti Acked-by: Christian Borntraeger Signed-off-by: Jens Axboe --- block/blk-mq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index a13c40ca8230..1583ed28ea03 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -203,7 +203,6 @@ __blk_mq_alloc_request(struct blk_mq_alloc_data *data, int rw) if (tag != BLK_MQ_TAG_FAIL) { rq = data->hctx->tags->rqs[tag]; - rq->cmd_flags = 0; if (blk_mq_tag_busy(data->hctx)) { rq->cmd_flags = REQ_MQ_INFLIGHT; atomic_inc(&data->hctx->nr_active); @@ -258,6 +257,7 @@ static void __blk_mq_free_request(struct blk_mq_hw_ctx *hctx, if (rq->cmd_flags & REQ_MQ_INFLIGHT) atomic_dec(&hctx->nr_active); + rq->cmd_flags = 0; clear_bit(REQ_ATOM_STARTED, &rq->atomic_flags); blk_mq_put_tag(hctx, tag, &ctx->last_tag); @@ -1410,6 +1410,8 @@ static struct blk_mq_tags *blk_mq_init_rq_map(struct blk_mq_tag_set *set, left -= to_do * rq_size; for (j = 0; j < to_do; j++) { tags->rqs[i] = p; + tags->rqs[i]->atomic_flags = 0; + tags->rqs[i]->cmd_flags = 0; if (set->ops->init_request) { if (set->ops->init_request(set->driver_data, tags->rqs[i], hctx_idx, i, From a57a178a490345c7236b0077b3de005754389ed6 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 16 Sep 2014 14:44:07 -0700 Subject: [PATCH 132/172] blk-mq: avoid infinite recursion with the FUA flag We should not insert requests into the flush state machine from blk_mq_insert_request. All incoming flush requests come through blk_{m,s}q_make_request and are handled there, while blk_execute_rq_nowait should only be called for BLOCK_PC requests. All other callers deal with requests that already went through the flush statemchine and shouldn't be reinserted into it. Reported-by: Robert Elliott Debugged-by: Ming Lei Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- block/blk-exec.c | 1 + block/blk-mq.c | 11 +++-------- 2 files changed, 4 insertions(+), 8 deletions(-) diff --git a/block/blk-exec.c b/block/blk-exec.c index f4d27b12c90b..9924725fa50d 100644 --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -56,6 +56,7 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk, bool is_pm_resume; WARN_ON(irqs_disabled()); + WARN_ON(rq->cmd_type == REQ_TYPE_FS); rq->rq_disk = bd_disk; rq->end_io = done; diff --git a/block/blk-mq.c b/block/blk-mq.c index 1583ed28ea03..a7d70a1bbf36 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -963,14 +963,9 @@ void blk_mq_insert_request(struct request *rq, bool at_head, bool run_queue, hctx = q->mq_ops->map_queue(q, ctx->cpu); - if (rq->cmd_flags & (REQ_FLUSH | REQ_FUA) && - !(rq->cmd_flags & (REQ_FLUSH_SEQ))) { - blk_insert_flush(rq); - } else { - spin_lock(&ctx->lock); - __blk_mq_insert_request(hctx, rq, at_head); - spin_unlock(&ctx->lock); - } + spin_lock(&ctx->lock); + __blk_mq_insert_request(hctx, rq, at_head); + spin_unlock(&ctx->lock); if (run_queue) blk_mq_run_hw_queue(hctx, async); From 6b55e1f2d0a5e462e52678278ab749468f1db81c Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 19 Sep 2014 08:04:53 -0600 Subject: [PATCH 133/172] blk-mq: fix potential oops on out-of-memory in __blk_mq_alloc_rq_maps() __blk_mq_alloc_rq_maps() can be invoked multiple times, if we scale back the queue depth if we are low on memory. So don't clear set->tags when we fail, this is handled directly in the parent function, blk_mq_alloc_tag_set(). Reported-by: Robert Elliott Signed-off-by: Jens Axboe --- block/blk-mq.c | 1 - 1 file changed, 1 deletion(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index a7d70a1bbf36..e83d306907da 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1959,7 +1959,6 @@ static int __blk_mq_alloc_rq_maps(struct blk_mq_tag_set *set) while (--i >= 0) blk_mq_free_rq_map(set, set->tags[i], i); - set->tags = NULL; return -ENOMEM; } From 8b95741569eabc5eb17da71d1d3668cdb0bef86c Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 19 Sep 2014 13:10:29 -0600 Subject: [PATCH 134/172] blk-mq: use blk_mq_start_hw_queues() when running requeue work When requests are retried due to hw or sw resource shortages, we often stop the associated hardware queue. So ensure that we restart the queues when running the requeue work, otherwise the queue run will be a no-op. Signed-off-by: Jens Axboe --- block/blk-mq.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index e83d306907da..c88e6089746d 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -479,7 +479,11 @@ static void blk_mq_requeue_work(struct work_struct *work) blk_mq_insert_request(rq, false, false, false); } - blk_mq_run_queues(q, false); + /* + * Use the start variant of queue running here, so that running + * the requeue work will kick stopped queues. + */ + blk_mq_start_hw_queues(q); } void blk_mq_add_to_requeue_list(struct request *rq, bool at_head) From 07d92d5cc977a7fe1e683e1d4a6f723f7f2778cb Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Wed, 17 Sep 2014 10:08:08 +0200 Subject: [PATCH 135/172] macvlan: allow to enqueue broadcast pkt on virtual device Since commit 412ca1550cbe ("macvlan: Move broadcasts into a work queue"), the driver uses tx_queue_len of the master device as the limit of packets enqueuing. Problem is that virtual drivers have this value set to 0, thus all broadcast packets were rejected. Because tx_queue_len was arbitrarily chosen, I replace it with a static limit of 1000 (also arbitrarily chosen). CC: Herbert Xu Reported-by: Thibaut Collet Suggested-by: Thibaut Collet Tested-by: Thibaut Collet Signed-off-by: Nicolas Dichtel Acked-by: Herbert Xu Signed-off-by: David S. Miller --- drivers/net/macvlan.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 7652fd152109..726edabff26b 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -36,6 +36,7 @@ #include #define MACVLAN_HASH_SIZE (1 << BITS_PER_BYTE) +#define MACVLAN_BC_QUEUE_LEN 1000 struct macvlan_port { struct net_device *dev; @@ -248,7 +249,7 @@ static void macvlan_broadcast_enqueue(struct macvlan_port *port, goto err; spin_lock(&port->bc_queue.lock); - if (skb_queue_len(&port->bc_queue) < skb->dev->tx_queue_len) { + if (skb_queue_len(&port->bc_queue) < MACVLAN_BC_QUEUE_LEN) { __skb_queue_tail(&port->bc_queue, nskb); err = 0; } From 4e66cd13ff9cd7eaae69e2fae0335d8d99d8afdf Mon Sep 17 00:00:00 2001 From: sundarjdev Date: Mon, 22 Sep 2014 10:31:39 -0700 Subject: [PATCH 136/172] hwmon: (tmp103) Fix resource leak bug in tmp103 temperature sensor driver tmp103 temperature sensor driver registers with the hwmon framework by calling hwmon_device_register_with_groups but does not have a .remove method to call hwmon_device_unregister to unregister from the framework when the device is no longer needed. Fix this by calling devm_hwmon_device_register_with_groups. Signed-off-by: Sundar J Dev Signed-off-by: Guenter Roeck --- drivers/hwmon/tmp103.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/tmp103.c b/drivers/hwmon/tmp103.c index e42964f07f67..ad571ec795a3 100644 --- a/drivers/hwmon/tmp103.c +++ b/drivers/hwmon/tmp103.c @@ -145,7 +145,7 @@ static int tmp103_probe(struct i2c_client *client, } i2c_set_clientdata(client, regmap); - hwmon_dev = hwmon_device_register_with_groups(dev, client->name, + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, regmap, tmp103_groups); return PTR_ERR_OR_ZERO(hwmon_dev); } From 476c18850c6cbaa3f2bb661ae9710645081563b9 Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Thu, 18 Sep 2014 10:31:17 -0400 Subject: [PATCH 137/172] tg3: Work around HW/FW limitations with vlan encapsulated frames TG3 appears to have an issue performing TSO and checksum offloading correclty when the frame has been vlan encapsulated (non-accelrated). In these cases, tcp checksum is not correctly updated. This patch attempts to work around this issue. After the patch, 802.1ad vlans start working correctly over tg3 devices. CC: Prashant Sreedharan CC: Michael Chan Signed-off-by: Vladislav Yasevich Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index cb77ae93d89a..e7d3a620d96a 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -7914,8 +7914,6 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) entry = tnapi->tx_prod; base_flags = 0; - if (skb->ip_summed == CHECKSUM_PARTIAL) - base_flags |= TXD_FLAG_TCPUDP_CSUM; mss = skb_shinfo(skb)->gso_size; if (mss) { @@ -7929,6 +7927,13 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb) - ETH_HLEN; + /* HW/FW can not correctly segment packets that have been + * vlan encapsulated. + */ + if (skb->protocol == htons(ETH_P_8021Q) || + skb->protocol == htons(ETH_P_8021AD)) + return tg3_tso_bug(tp, tnapi, txq, skb); + if (!skb_is_gso_v6(skb)) { if (unlikely((ETH_HLEN + hdr_len) > 80) && tg3_flag(tp, TSO_BUG)) @@ -7979,6 +7984,17 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) base_flags |= tsflags << 12; } } + } else if (skb->ip_summed == CHECKSUM_PARTIAL) { + /* HW/FW can not correctly checksum packets that have been + * vlan encapsulated. + */ + if (skb->protocol == htons(ETH_P_8021Q) || + skb->protocol == htons(ETH_P_8021AD)) { + if (skb_checksum_help(skb)) + goto drop; + } else { + base_flags |= TXD_FLAG_TCPUDP_CSUM; + } } if (tg3_flag(tp, USE_JUMBO_BDFLAG) && From 257117862634d89de33fec74858b1a0ba5ab444b Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 18 Sep 2014 08:02:05 -0700 Subject: [PATCH 138/172] net: sched: shrink struct qdisc_skb_cb to 28 bytes We cannot make struct qdisc_skb_cb bigger without impacting IPoIB, or increasing skb->cb[] size. Commit e0f31d849867 ("flow_keys: Record IP layer protocol in skb_flow_dissect()") broke IPoIB. Only current offender is sch_choke, and this one do not need an absolutely precise flow key. If we store 17 bytes of flow key, its more than enough. (Its the actual size of flow_keys if it was a packed structure, but we might add new fields at the end of it later) Signed-off-by: Eric Dumazet Fixes: e0f31d849867 ("flow_keys: Record IP layer protocol in skb_flow_dissect()") Signed-off-by: David S. Miller --- include/net/sch_generic.h | 3 ++- net/sched/sch_choke.c | 18 ++++++++++++++---- 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index a3cfb8ebeb53..620e086c0cbe 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -231,7 +231,8 @@ struct qdisc_skb_cb { unsigned int pkt_len; u16 slave_dev_queue_mapping; u16 _pad; - unsigned char data[24]; +#define QDISC_CB_PRIV_LEN 20 + unsigned char data[QDISC_CB_PRIV_LEN]; }; static inline void qdisc_cb_private_validate(const struct sk_buff *skb, int sz) diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c index ed30e436128b..fb666d1e4de3 100644 --- a/net/sched/sch_choke.c +++ b/net/sched/sch_choke.c @@ -133,10 +133,16 @@ static void choke_drop_by_idx(struct Qdisc *sch, unsigned int idx) --sch->q.qlen; } +/* private part of skb->cb[] that a qdisc is allowed to use + * is limited to QDISC_CB_PRIV_LEN bytes. + * As a flow key might be too large, we store a part of it only. + */ +#define CHOKE_K_LEN min_t(u32, sizeof(struct flow_keys), QDISC_CB_PRIV_LEN - 3) + struct choke_skb_cb { u16 classid; u8 keys_valid; - struct flow_keys keys; + u8 keys[QDISC_CB_PRIV_LEN - 3]; }; static inline struct choke_skb_cb *choke_skb_cb(const struct sk_buff *skb) @@ -163,22 +169,26 @@ static u16 choke_get_classid(const struct sk_buff *skb) static bool choke_match_flow(struct sk_buff *skb1, struct sk_buff *skb2) { + struct flow_keys temp; + if (skb1->protocol != skb2->protocol) return false; if (!choke_skb_cb(skb1)->keys_valid) { choke_skb_cb(skb1)->keys_valid = 1; - skb_flow_dissect(skb1, &choke_skb_cb(skb1)->keys); + skb_flow_dissect(skb1, &temp); + memcpy(&choke_skb_cb(skb1)->keys, &temp, CHOKE_K_LEN); } if (!choke_skb_cb(skb2)->keys_valid) { choke_skb_cb(skb2)->keys_valid = 1; - skb_flow_dissect(skb2, &choke_skb_cb(skb2)->keys); + skb_flow_dissect(skb2, &temp); + memcpy(&choke_skb_cb(skb2)->keys, &temp, CHOKE_K_LEN); } return !memcmp(&choke_skb_cb(skb1)->keys, &choke_skb_cb(skb2)->keys, - sizeof(struct flow_keys)); + CHOKE_K_LEN); } /* From b49fe36208b45f76dfbcfcd3afd952a33fa9f5ce Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 18 Sep 2014 11:00:27 -0700 Subject: [PATCH 139/172] ipoib: validate struct ipoib_cb size To catch future errors sooner. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/infiniband/ulp/ipoib/ipoib.h | 6 ++++++ drivers/infiniband/ulp/ipoib/ipoib_main.c | 4 ++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index 3edce617c31b..d7562beb5423 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -131,6 +131,12 @@ struct ipoib_cb { u8 hwaddr[INFINIBAND_ALEN]; }; +static inline struct ipoib_cb *ipoib_skb_cb(const struct sk_buff *skb) +{ + BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct ipoib_cb)); + return (struct ipoib_cb *)skb->cb; +} + /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ struct ipoib_mcast { struct ib_sa_mcmember_rec mcmember; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 1310acf6bf92..13e6e0431592 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -716,7 +716,7 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_neigh *neigh; - struct ipoib_cb *cb = (struct ipoib_cb *) skb->cb; + struct ipoib_cb *cb = ipoib_skb_cb(skb); struct ipoib_header *header; unsigned long flags; @@ -813,7 +813,7 @@ static int ipoib_hard_header(struct sk_buff *skb, const void *daddr, const void *saddr, unsigned len) { struct ipoib_header *header; - struct ipoib_cb *cb = (struct ipoib_cb *) skb->cb; + struct ipoib_cb *cb = ipoib_skb_cb(skb); header = (struct ipoib_header *) skb_push(skb, sizeof *header); From d70b1137233836be1d71bd53ae60bec6c9e7203c Mon Sep 17 00:00:00 2001 From: hayeswang Date: Fri, 19 Sep 2014 15:17:18 +0800 Subject: [PATCH 140/172] r8152: disable ALDPS If the hw is in ALDPS mode, the hw may have no response for accessing the most registers. Therefore, the ALDPS should be disabled before accessing the hw in rtl_ops.init(), rtl_ops.disable(), rtl_ops.up(), and rtl_ops.down(). Regardless of rtl_ops.enable(), because the hw wouldn't enter ALDPS mode when linking on. The hw would enter the ALDPS mode after several seconds when link down occurs and the ALDPS is enabled. Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/usb/r8152.c | 62 ++++++++++++++++++++++++++++++----------- 1 file changed, 45 insertions(+), 17 deletions(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 87f710476217..74760e8143e3 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -2019,7 +2019,7 @@ static int rtl8153_enable(struct r8152 *tp) return rtl_enable(tp); } -static void rtl8152_disable(struct r8152 *tp) +static void rtl_disable(struct r8152 *tp) { u32 ocp_data; int i; @@ -2232,6 +2232,13 @@ static inline void r8152b_enable_aldps(struct r8152 *tp) LINKENA | DIS_SDSAVE); } +static void rtl8152_disable(struct r8152 *tp) +{ + r8152b_disable_aldps(tp); + rtl_disable(tp); + r8152b_enable_aldps(tp); +} + static void r8152b_hw_phy_cfg(struct r8152 *tp) { u16 data; @@ -2242,11 +2249,8 @@ static void r8152b_hw_phy_cfg(struct r8152 *tp) r8152_mdio_write(tp, MII_BMCR, data); } - r8152b_disable_aldps(tp); - rtl_clear_bp(tp); - r8152b_enable_aldps(tp); set_bit(PHY_RESET, &tp->flags); } @@ -2255,9 +2259,6 @@ static void r8152b_exit_oob(struct r8152 *tp) u32 ocp_data; int i; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) - return; - ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); ocp_data &= ~RCR_ACPT_ALL; ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); @@ -2347,7 +2348,7 @@ static void r8152b_enter_oob(struct r8152 *tp) ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_OOB); ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_OOB); - rtl8152_disable(tp); + rtl_disable(tp); for (i = 0; i < 1000; i++) { ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); @@ -2485,9 +2486,6 @@ static void r8153_first_init(struct r8152 *tp) u32 ocp_data; int i; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) - return; - rxdy_gated_en(tp, true); r8153_teredo_off(tp); @@ -2560,7 +2558,7 @@ static void r8153_enter_oob(struct r8152 *tp) ocp_data &= ~NOW_IS_OOB; ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); - rtl8152_disable(tp); + rtl_disable(tp); for (i = 0; i < 1000; i++) { ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); @@ -2624,6 +2622,13 @@ static void r8153_enable_aldps(struct r8152 *tp) ocp_reg_write(tp, OCP_POWER_CFG, data); } +static void rtl8153_disable(struct r8152 *tp) +{ + r8153_disable_aldps(tp); + rtl_disable(tp); + r8153_enable_aldps(tp); +} + static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex) { u16 bmcr, anar, gbcr; @@ -2714,6 +2719,16 @@ static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex) return ret; } +static void rtl8152_up(struct r8152 *tp) +{ + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; + + r8152b_disable_aldps(tp); + r8152b_exit_oob(tp); + r8152b_enable_aldps(tp); +} + static void rtl8152_down(struct r8152 *tp) { if (test_bit(RTL8152_UNPLUG, &tp->flags)) { @@ -2727,6 +2742,16 @@ static void rtl8152_down(struct r8152 *tp) r8152b_enable_aldps(tp); } +static void rtl8153_up(struct r8152 *tp) +{ + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; + + r8153_disable_aldps(tp); + r8153_first_init(tp); + r8153_enable_aldps(tp); +} + static void rtl8153_down(struct r8152 *tp) { if (test_bit(RTL8152_UNPLUG, &tp->flags)) { @@ -2946,6 +2971,8 @@ static void r8152b_init(struct r8152 *tp) if (test_bit(RTL8152_UNPLUG, &tp->flags)) return; + r8152b_disable_aldps(tp); + if (tp->version == RTL_VER_01) { ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE); ocp_data &= ~LED_MODE_MASK; @@ -2984,6 +3011,7 @@ static void r8153_init(struct r8152 *tp) if (test_bit(RTL8152_UNPLUG, &tp->flags)) return; + r8153_disable_aldps(tp); r8153_u1u2en(tp, false); for (i = 0; i < 500; i++) { @@ -3392,7 +3420,7 @@ static int rtl_ops_init(struct r8152 *tp, const struct usb_device_id *id) ops->init = r8152b_init; ops->enable = rtl8152_enable; ops->disable = rtl8152_disable; - ops->up = r8152b_exit_oob; + ops->up = rtl8152_up; ops->down = rtl8152_down; ops->unload = rtl8152_unload; ret = 0; @@ -3400,8 +3428,8 @@ static int rtl_ops_init(struct r8152 *tp, const struct usb_device_id *id) case PRODUCT_ID_RTL8153: ops->init = r8153_init; ops->enable = rtl8153_enable; - ops->disable = rtl8152_disable; - ops->up = r8153_first_init; + ops->disable = rtl8153_disable; + ops->up = rtl8153_up; ops->down = rtl8153_down; ops->unload = rtl8153_unload; ret = 0; @@ -3416,8 +3444,8 @@ static int rtl_ops_init(struct r8152 *tp, const struct usb_device_id *id) case PRODUCT_ID_SAMSUNG: ops->init = r8153_init; ops->enable = rtl8153_enable; - ops->disable = rtl8152_disable; - ops->up = r8153_first_init; + ops->disable = rtl8153_disable; + ops->up = rtl8153_up; ops->down = rtl8153_down; ops->unload = rtl8153_unload; ret = 0; From 85911d71109d3dda8bb35515b78bcc1de6837785 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 19 Sep 2014 13:40:25 +0300 Subject: [PATCH 141/172] r8169: fix an if condition There is an extra semi-colon so __rtl8169_set_features() is called every time. Fixes: 929a031dfd62 ('r8169: adjust __rtl8169_set_features') Signed-off-by: Dan Carpenter Acked-by: Hayes Wang -- Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index ef2cee5de62b..0921302553c6 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -1818,7 +1818,7 @@ static int rtl8169_set_features(struct net_device *dev, features &= NETIF_F_RXALL | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_RX; rtl_lock_work(tp); - if (features ^ dev->features); + if (features ^ dev->features) __rtl8169_set_features(dev, features); rtl_unlock_work(tp); From 09f3756bb9a82835b0c2a9b50f36b47aa42f2c61 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Fri, 19 Sep 2014 16:16:25 +0200 Subject: [PATCH 142/172] dm9000: Return an ERR_PTR() in all error conditions of dm9000_parse_dt() In one error condition dm9000_parse_dt() returns NULL, however the return value is checked using IS_ERR() in dm9000_probe(), leading to the error not being properly propagated if CONFIG_OF is not enabled or the device tree data is not available. Fix this by also returning an ERR_PTR() in this case. Fixes: 0b8bf1baabe5 (net: dm9000: Allow instantiation using device tree) Signed-off-by: Tobias Klauser Signed-off-by: David S. Miller --- drivers/net/ethernet/davicom/dm9000.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c index 9b33057a9477..70089c29d307 100644 --- a/drivers/net/ethernet/davicom/dm9000.c +++ b/drivers/net/ethernet/davicom/dm9000.c @@ -1399,7 +1399,7 @@ static struct dm9000_plat_data *dm9000_parse_dt(struct device *dev) const void *mac_addr; if (!IS_ENABLED(CONFIG_OF) || !np) - return NULL; + return ERR_PTR(-ENXIO); pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) From 46f341ffcfb5d8530f7d1e60f3be06cce6661b62 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 16 Sep 2014 13:38:51 -0600 Subject: [PATCH 143/172] genhd: fix leftover might_sleep() in blk_free_devt() Commit 2da78092 changed the locking from a mutex to a spinlock, so we now longer sleep in this context. But there was a leftover might_sleep() in there, which now triggers since we do the final free from an RCU callback. Get rid of it. Reported-by: Pontus Fuchs Signed-off-by: Jens Axboe --- block/genhd.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index 09da5e4a8e03..e6723bd4d7a1 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -445,8 +445,6 @@ int blk_alloc_devt(struct hd_struct *part, dev_t *devt) */ void blk_free_devt(dev_t devt) { - might_sleep(); - if (devt == MKDEV(0, 0)) return; From 1f2bb4acc125edc2c06db3ad3e8c699bc075ad52 Mon Sep 17 00:00:00 2001 From: Christoffer Dall Date: Mon, 22 Sep 2014 22:10:36 +0200 Subject: [PATCH 144/172] arm/arm64: KVM: Fix unaligned access bug on gicv2 access We were using an atomic bitop on the vgic_v2.vgic_elrsr field which was not aligned to the natural size on 64-bit platforms. This bug showed up after QEMU correctly identifies the pl011 line as being level-triggered, and not edge-triggered. These data structures are protected by a spinlock so simply use a non-atomic version of the accessor instead. Tested-by: Joel Schopp Reported-by: Riku Voipio Signed-off-by: Christoffer Dall --- virt/kvm/arm/vgic-v2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/virt/kvm/arm/vgic-v2.c b/virt/kvm/arm/vgic-v2.c index 01124ef3690a..416baedfc89f 100644 --- a/virt/kvm/arm/vgic-v2.c +++ b/virt/kvm/arm/vgic-v2.c @@ -71,7 +71,7 @@ static void vgic_v2_sync_lr_elrsr(struct kvm_vcpu *vcpu, int lr, struct vgic_lr lr_desc) { if (!(lr_desc.state & LR_STATE_MASK)) - set_bit(lr, (unsigned long *)vcpu->arch.vgic_cpu.vgic_v2.vgic_elrsr); + __set_bit(lr, (unsigned long *)vcpu->arch.vgic_cpu.vgic_v2.vgic_elrsr); } static u64 vgic_v2_get_elrsr(const struct kvm_vcpu *vcpu) From a35165ca101695aa2cc5a6300ef69ae60be39a49 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 22 Sep 2014 10:38:16 -0700 Subject: [PATCH 145/172] ipv4: do not use this_cpu_ptr() in preemptible context this_cpu_ptr() in preemptible context is generally bad Sep 22 05:05:55 br kernel: [ 94.608310] BUG: using smp_processor_id() in preemptible [00000000] code: ip/2261 Sep 22 05:05:55 br kernel: [ 94.608316] caller is tunnel_dst_set.isra.28+0x20/0x60 [ip_tunnel] Sep 22 05:05:55 br kernel: [ 94.608319] CPU: 3 PID: 2261 Comm: ip Not tainted 3.17.0-rc5 #82 We can simply use raw_cpu_ptr(), as preemption is safe in these contexts. Should fix https://bugzilla.kernel.org/show_bug.cgi?id=84991 Signed-off-by: Eric Dumazet Reported-by: Joe Fixes: 9a4aa9af447f ("ipv4: Use percpu Cache route in IP tunnels") Acked-by: Tom Herbert Signed-off-by: David S. Miller --- net/ipv4/ip_tunnel.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index afed1aac2638..bd41dd1948b6 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -79,10 +79,10 @@ static void __tunnel_dst_set(struct ip_tunnel_dst *idst, idst->saddr = saddr; } -static void tunnel_dst_set(struct ip_tunnel *t, +static noinline void tunnel_dst_set(struct ip_tunnel *t, struct dst_entry *dst, __be32 saddr) { - __tunnel_dst_set(this_cpu_ptr(t->dst_cache), dst, saddr); + __tunnel_dst_set(raw_cpu_ptr(t->dst_cache), dst, saddr); } static void tunnel_dst_reset(struct ip_tunnel *t) @@ -106,7 +106,7 @@ static struct rtable *tunnel_rtable_get(struct ip_tunnel *t, struct dst_entry *dst; rcu_read_lock(); - idst = this_cpu_ptr(t->dst_cache); + idst = raw_cpu_ptr(t->dst_cache); dst = rcu_dereference(idst->dst); if (dst && !atomic_inc_not_zero(&dst->__refcnt)) dst = NULL; From 478a010c9235ca92e66cc5058b42e30e33275ad4 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 22 Sep 2014 11:54:42 -0700 Subject: [PATCH 146/172] net: bcmgenet: fix TX reclaim accounting for fragments The GENET driver supports SKB fragments, and succeeds in transmitting them properly, but when reclaiming these transmitted fragments, we will only update the count of free buffer descriptors by 1, even for SKBs with fragments. This leads to the networking stack thinking it has more room than the hardware has when pushing new SKBs, and backing off consequently because we return NETDEV_TX_BUSY. Fix this by accounting for the SKB nr_frags plus one (itself) and update ring->free_bds accordingly with that value for each iteration loop in __bcmgenet_tx_reclaim(). Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index cdef86a03862..11a96437862d 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -875,6 +875,7 @@ static void __bcmgenet_tx_reclaim(struct net_device *dev, int last_tx_cn, last_c_index, num_tx_bds; struct enet_cb *tx_cb_ptr; struct netdev_queue *txq; + unsigned int bds_compl; unsigned int c_index; /* Compute how many buffers are transmitted since last xmit call */ @@ -899,7 +900,9 @@ static void __bcmgenet_tx_reclaim(struct net_device *dev, /* Reclaim transmitted buffers */ while (last_tx_cn-- > 0) { tx_cb_ptr = ring->cbs + last_c_index; + bds_compl = 0; if (tx_cb_ptr->skb) { + bds_compl = skb_shinfo(tx_cb_ptr->skb)->nr_frags + 1; dev->stats.tx_bytes += tx_cb_ptr->skb->len; dma_unmap_single(&dev->dev, dma_unmap_addr(tx_cb_ptr, dma_addr), @@ -916,7 +919,7 @@ static void __bcmgenet_tx_reclaim(struct net_device *dev, dma_unmap_addr_set(tx_cb_ptr, dma_addr, 0); } dev->stats.tx_packets++; - ring->free_bds += 1; + ring->free_bds += bds_compl; last_c_index++; last_c_index &= (num_tx_bds - 1); From 4a0c081eff43a11c65dee3ad6c457f7f58bcebe0 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 22 Sep 2014 11:54:43 -0700 Subject: [PATCH 147/172] net: bcmgenet: call bcmgenet_dma_teardown in bcmgenet_fini_dma We should not be manipulaging the DMA_CTRL registers directly by writing 0 to them to disable DMA. This is an operation that needs to be timed to make sure the DMA engines have been properly stopped since their state machine stops on a packet boundary, not immediately. Make sure that tha bcmgenet_fini_dma() calls bcmgenet_dma_teardown() to ensure a proper DMA engine state. As a result, we need to reorder the function bodies to resolve the use dependency. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- .../net/ethernet/broadcom/genet/bcmgenet.c | 105 +++++++++--------- 1 file changed, 52 insertions(+), 53 deletions(-) diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 11a96437862d..5cc9cae21ed5 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -1744,13 +1744,63 @@ static void bcmgenet_init_multiq(struct net_device *dev) bcmgenet_tdma_writel(priv, reg, DMA_CTRL); } +static int bcmgenet_dma_teardown(struct bcmgenet_priv *priv) +{ + int ret = 0; + int timeout = 0; + u32 reg; + + /* Disable TDMA to stop add more frames in TX DMA */ + reg = bcmgenet_tdma_readl(priv, DMA_CTRL); + reg &= ~DMA_EN; + bcmgenet_tdma_writel(priv, reg, DMA_CTRL); + + /* Check TDMA status register to confirm TDMA is disabled */ + while (timeout++ < DMA_TIMEOUT_VAL) { + reg = bcmgenet_tdma_readl(priv, DMA_STATUS); + if (reg & DMA_DISABLED) + break; + + udelay(1); + } + + if (timeout == DMA_TIMEOUT_VAL) { + netdev_warn(priv->dev, "Timed out while disabling TX DMA\n"); + ret = -ETIMEDOUT; + } + + /* Wait 10ms for packet drain in both tx and rx dma */ + usleep_range(10000, 20000); + + /* Disable RDMA */ + reg = bcmgenet_rdma_readl(priv, DMA_CTRL); + reg &= ~DMA_EN; + bcmgenet_rdma_writel(priv, reg, DMA_CTRL); + + timeout = 0; + /* Check RDMA status register to confirm RDMA is disabled */ + while (timeout++ < DMA_TIMEOUT_VAL) { + reg = bcmgenet_rdma_readl(priv, DMA_STATUS); + if (reg & DMA_DISABLED) + break; + + udelay(1); + } + + if (timeout == DMA_TIMEOUT_VAL) { + netdev_warn(priv->dev, "Timed out while disabling RX DMA\n"); + ret = -ETIMEDOUT; + } + + return ret; +} + static void bcmgenet_fini_dma(struct bcmgenet_priv *priv) { int i; /* disable DMA */ - bcmgenet_rdma_writel(priv, 0, DMA_CTRL); - bcmgenet_tdma_writel(priv, 0, DMA_CTRL); + bcmgenet_dma_teardown(priv); for (i = 0; i < priv->num_tx_bds; i++) { if (priv->tx_cbs[i].skb != NULL) { @@ -2109,57 +2159,6 @@ static int bcmgenet_open(struct net_device *dev) return ret; } -static int bcmgenet_dma_teardown(struct bcmgenet_priv *priv) -{ - int ret = 0; - int timeout = 0; - u32 reg; - - /* Disable TDMA to stop add more frames in TX DMA */ - reg = bcmgenet_tdma_readl(priv, DMA_CTRL); - reg &= ~DMA_EN; - bcmgenet_tdma_writel(priv, reg, DMA_CTRL); - - /* Check TDMA status register to confirm TDMA is disabled */ - while (timeout++ < DMA_TIMEOUT_VAL) { - reg = bcmgenet_tdma_readl(priv, DMA_STATUS); - if (reg & DMA_DISABLED) - break; - - udelay(1); - } - - if (timeout == DMA_TIMEOUT_VAL) { - netdev_warn(priv->dev, "Timed out while disabling TX DMA\n"); - ret = -ETIMEDOUT; - } - - /* Wait 10ms for packet drain in both tx and rx dma */ - usleep_range(10000, 20000); - - /* Disable RDMA */ - reg = bcmgenet_rdma_readl(priv, DMA_CTRL); - reg &= ~DMA_EN; - bcmgenet_rdma_writel(priv, reg, DMA_CTRL); - - timeout = 0; - /* Check RDMA status register to confirm RDMA is disabled */ - while (timeout++ < DMA_TIMEOUT_VAL) { - reg = bcmgenet_rdma_readl(priv, DMA_STATUS); - if (reg & DMA_DISABLED) - break; - - udelay(1); - } - - if (timeout == DMA_TIMEOUT_VAL) { - netdev_warn(priv->dev, "Timed out while disabling RX DMA\n"); - ret = -ETIMEDOUT; - } - - return ret; -} - static void bcmgenet_netif_stop(struct net_device *dev) { struct bcmgenet_priv *priv = netdev_priv(dev); From f3670394c29ff3730638762c1760fd2f624e6d7b Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 22 Sep 2014 23:05:49 -0700 Subject: [PATCH 148/172] Revert "x86/efi: Fixup GOT in all boot code paths" This reverts commit 9cb0e394234d244fe5a97e743ec9dd7ddff7e64b. It causes my Sony Vaio Pro 11 to immediately reboot at startup. Acked-by: Ingo Molnar Cc: Peter Anvin Cc: Maarten Lankhorst Cc: Ard Biesheuvel Cc: Matt Fleming Signed-off-by: Linus Torvalds --- arch/x86/boot/compressed/head_32.S | 54 ++++++++-------------------- arch/x86/boot/compressed/head_64.S | 56 ++++++++---------------------- 2 files changed, 29 insertions(+), 81 deletions(-) diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S index d6b8aa4c986c..cbed1407a5cd 100644 --- a/arch/x86/boot/compressed/head_32.S +++ b/arch/x86/boot/compressed/head_32.S @@ -30,33 +30,6 @@ #include #include -/* - * Adjust our own GOT - * - * The relocation base must be in %ebx - * - * It is safe to call this macro more than once, because in some of the - * code paths multiple invocations are inevitable, e.g. via the efi* - * entry points. - * - * Relocation is only performed the first time. - */ -.macro FIXUP_GOT - cmpb $1, got_fixed(%ebx) - je 2f - - leal _got(%ebx), %edx - leal _egot(%ebx), %ecx -1: - cmpl %ecx, %edx - jae 2f - addl %ebx, (%edx) - addl $4, %edx - jmp 1b -2: - movb $1, got_fixed(%ebx) -.endm - __HEAD ENTRY(startup_32) #ifdef CONFIG_EFI_STUB @@ -83,9 +56,6 @@ ENTRY(efi_pe_entry) add %esi, 88(%eax) pushl %eax - movl %esi, %ebx - FIXUP_GOT - call make_boot_params cmpl $0, %eax je fail @@ -111,10 +81,6 @@ ENTRY(efi32_stub_entry) leal efi32_config(%esi), %eax add %esi, 88(%eax) pushl %eax - - movl %esi, %ebx - FIXUP_GOT - 2: call efi_main cmpl $0, %eax @@ -224,7 +190,19 @@ relocated: shrl $2, %ecx rep stosl - FIXUP_GOT +/* + * Adjust our own GOT + */ + leal _got(%ebx), %edx + leal _egot(%ebx), %ecx +1: + cmpl %ecx, %edx + jae 2f + addl %ebx, (%edx) + addl $4, %edx + jmp 1b +2: + /* * Do the decompression, and jump to the new kernel.. */ @@ -247,12 +225,8 @@ relocated: xorl %ebx, %ebx jmp *%eax - .data -/* Have we relocated the GOT? */ -got_fixed: - .byte 0 - #ifdef CONFIG_EFI_STUB + .data efi32_config: .fill 11,8,0 .long efi_call_phys diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 50f69c7eaaf4..2884e0c3e8a5 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -32,33 +32,6 @@ #include #include -/* - * Adjust our own GOT - * - * The relocation base must be in %rbx - * - * It is safe to call this macro more than once, because in some of the - * code paths multiple invocations are inevitable, e.g. via the efi* - * entry points. - * - * Relocation is only performed the first time. - */ -.macro FIXUP_GOT - cmpb $1, got_fixed(%rip) - je 2f - - leaq _got(%rip), %rdx - leaq _egot(%rip), %rcx -1: - cmpq %rcx, %rdx - jae 2f - addq %rbx, (%rdx) - addq $8, %rdx - jmp 1b -2: - movb $1, got_fixed(%rip) -.endm - __HEAD .code32 ENTRY(startup_32) @@ -279,13 +252,10 @@ ENTRY(efi_pe_entry) subq $1b, %rbp /* - * Relocate efi_config->call() and the GOT entries. + * Relocate efi_config->call(). */ addq %rbp, efi64_config+88(%rip) - movq %rbp, %rbx - FIXUP_GOT - movq %rax, %rdi call make_boot_params cmpq $0,%rax @@ -301,13 +271,10 @@ handover_entry: subq $1b, %rbp /* - * Relocate efi_config->call() and the GOT entries. + * Relocate efi_config->call(). */ movq efi_config(%rip), %rax addq %rbp, 88(%rax) - - movq %rbp, %rbx - FIXUP_GOT 2: movq efi_config(%rip), %rdi call efi_main @@ -418,8 +385,19 @@ relocated: shrq $3, %rcx rep stosq - FIXUP_GOT - +/* + * Adjust our own GOT + */ + leaq _got(%rip), %rdx + leaq _egot(%rip), %rcx +1: + cmpq %rcx, %rdx + jae 2f + addq %rbx, (%rdx) + addq $8, %rdx + jmp 1b +2: + /* * Do the decompression, and jump to the new kernel.. */ @@ -459,10 +437,6 @@ gdt: .quad 0x0000000000000000 /* TS continued */ gdt_end: -/* Have we relocated the GOT? */ -got_fixed: - .byte 0 - #ifdef CONFIG_EFI_STUB efi_config: .quad 0 From e8ee39e227d72823461907156f0046269d72ff15 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Mon, 22 Sep 2014 09:35:11 -0700 Subject: [PATCH 149/172] [IA64] refresh arch/ia64/configs/* using "make savedefconfig" Prompted by a change to drivers/scsi/Kconfig which used to do a "select NET" but now does a "depends on NET". This meant that some configurations ended up without CONFIG_NET=y Signed-off-by Tony Luck --- arch/ia64/configs/bigsur_defconfig | 13 +++--------- arch/ia64/configs/generic_defconfig | 29 +++++++-------------------- arch/ia64/configs/gensparse_defconfig | 23 ++++++--------------- arch/ia64/configs/sim_defconfig | 8 ++------ arch/ia64/configs/tiger_defconfig | 25 +++++++---------------- arch/ia64/configs/zx1_defconfig | 14 ++++--------- 6 files changed, 29 insertions(+), 83 deletions(-) diff --git a/arch/ia64/configs/bigsur_defconfig b/arch/ia64/configs/bigsur_defconfig index 4c4ac163c600..b6bda1838629 100644 --- a/arch/ia64/configs/bigsur_defconfig +++ b/arch/ia64/configs/bigsur_defconfig @@ -1,4 +1,3 @@ -CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y CONFIG_LOG_BUF_SHIFT=16 @@ -6,6 +5,8 @@ CONFIG_PROFILING=y CONFIG_OPROFILE=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_SGI_PARTITION=y CONFIG_IA64_DIG=y CONFIG_SMP=y CONFIG_NR_CPUS=2 @@ -51,9 +52,6 @@ CONFIG_DM_MIRROR=m CONFIG_DM_ZERO=m CONFIG_NETDEVICES=y CONFIG_DUMMY=y -CONFIG_NET_ETHERNET=y -CONFIG_MII=y -CONFIG_NET_PCI=y CONFIG_INPUT_EVDEV=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y @@ -85,7 +83,6 @@ CONFIG_EXT3_FS=y CONFIG_XFS_FS=y CONFIG_XFS_QUOTA=y CONFIG_XFS_POSIX_ACL=y -CONFIG_AUTOFS_FS=m CONFIG_AUTOFS4_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y @@ -95,17 +92,13 @@ CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_HUGETLBFS=y CONFIG_NFS_FS=m -CONFIG_NFS_V3=y -CONFIG_NFS_V4=y +CONFIG_NFS_V4=m CONFIG_NFSD=m CONFIG_NFSD_V4=y CONFIG_CIFS=m CONFIG_CIFS_STATS=y CONFIG_CIFS_XATTR=y CONFIG_CIFS_POSIX=y -CONFIG_PARTITION_ADVANCED=y -CONFIG_SGI_PARTITION=y -CONFIG_EFI_PARTITION=y CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_ISO8859_1=y CONFIG_NLS_UTF8=m diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig index e8ed3ae70aae..81f686dee53c 100644 --- a/arch/ia64/configs/generic_defconfig +++ b/arch/ia64/configs/generic_defconfig @@ -1,4 +1,3 @@ -CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y CONFIG_IKCONFIG=y @@ -6,13 +5,13 @@ CONFIG_IKCONFIG_PROC=y CONFIG_LOG_BUF_SHIFT=20 CONFIG_CGROUPS=y CONFIG_CPUSETS=y -CONFIG_SYSFS_DEPRECATED_V2=y CONFIG_BLK_DEV_INITRD=y CONFIG_KALLSYMS_ALL=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y -# CONFIG_BLK_DEV_BSG is not set +CONFIG_PARTITION_ADVANCED=y +CONFIG_SGI_PARTITION=y CONFIG_MCKINLEY=y CONFIG_IA64_PAGE_SIZE_64KB=y CONFIG_IA64_CYCLONE=y @@ -29,14 +28,13 @@ CONFIG_ACPI_BUTTON=m CONFIG_ACPI_FAN=m CONFIG_ACPI_DOCK=y CONFIG_ACPI_PROCESSOR=m -CONFIG_ACPI_CONTAINER=y CONFIG_HOTPLUG_PCI=y CONFIG_HOTPLUG_PCI_ACPI=y +CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_MULTICAST=y -CONFIG_ARPD=y CONFIG_SYN_COOKIES=y # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" @@ -82,16 +80,13 @@ CONFIG_FUSION_FC=m CONFIG_FUSION_SAS=y CONFIG_NETDEVICES=y CONFIG_DUMMY=m -CONFIG_NET_ETHERNET=y +CONFIG_NETCONSOLE=y +CONFIG_TIGON3=y CONFIG_NET_TULIP=y CONFIG_TULIP=m -CONFIG_NET_PCI=y -CONFIG_NET_VENDOR_INTEL=y CONFIG_E100=m CONFIG_E1000=y CONFIG_IGB=y -CONFIG_TIGON3=y -CONFIG_NETCONSOLE=y # CONFIG_SERIO_SERPORT is not set CONFIG_GAMEPORT=m CONFIG_SERIAL_NONSTANDARD=y @@ -151,6 +146,7 @@ CONFIG_USB_STORAGE=m CONFIG_INFINIBAND=m CONFIG_INFINIBAND_MTHCA=m CONFIG_INFINIBAND_IPOIB=m +CONFIG_INTEL_IOMMU=y CONFIG_MSPEC=m CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y @@ -164,7 +160,6 @@ CONFIG_REISERFS_FS_XATTR=y CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y CONFIG_XFS_FS=y -CONFIG_AUTOFS_FS=m CONFIG_AUTOFS4_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y @@ -175,16 +170,10 @@ CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_HUGETLBFS=y CONFIG_NFS_FS=m -CONFIG_NFS_V3=y -CONFIG_NFS_V4=y +CONFIG_NFS_V4=m CONFIG_NFSD=m CONFIG_NFSD_V4=y -CONFIG_SMB_FS=m -CONFIG_SMB_NLS_DEFAULT=y CONFIG_CIFS=m -CONFIG_PARTITION_ADVANCED=y -CONFIG_SGI_PARTITION=y -CONFIG_EFI_PARTITION=y CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_CODEPAGE_737=m CONFIG_NLS_CODEPAGE_775=m @@ -225,11 +214,7 @@ CONFIG_NLS_UTF8=m CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_MUTEXES=y -# CONFIG_RCU_CPU_STALL_DETECTOR is not set -CONFIG_SYSCTL_SYSCALL_CHECK=y -CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_PCBC=m CONFIG_CRYPTO_MD5=y # CONFIG_CRYPTO_ANSI_CPRNG is not set CONFIG_CRC_T10DIF=y -CONFIG_INTEL_IOMMU=y diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig index d663efd1e4db..5b4fcdd51457 100644 --- a/arch/ia64/configs/gensparse_defconfig +++ b/arch/ia64/configs/gensparse_defconfig @@ -1,4 +1,3 @@ -CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y CONFIG_IKCONFIG=y @@ -9,6 +8,8 @@ CONFIG_KALLSYMS_ALL=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_SGI_PARTITION=y CONFIG_MCKINLEY=y CONFIG_IA64_CYCLONE=y CONFIG_SMP=y @@ -24,14 +25,12 @@ CONFIG_BINFMT_MISC=m CONFIG_ACPI_BUTTON=m CONFIG_ACPI_FAN=m CONFIG_ACPI_PROCESSOR=m -CONFIG_ACPI_CONTAINER=m CONFIG_HOTPLUG_PCI=y -CONFIG_HOTPLUG_PCI_ACPI=m +CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_MULTICAST=y -CONFIG_ARPD=y CONFIG_SYN_COOKIES=y # CONFIG_IPV6 is not set CONFIG_BLK_DEV_LOOP=m @@ -71,15 +70,12 @@ CONFIG_FUSION_SPI=y CONFIG_FUSION_FC=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m -CONFIG_NET_ETHERNET=y +CONFIG_NETCONSOLE=y +CONFIG_TIGON3=y CONFIG_NET_TULIP=y CONFIG_TULIP=m -CONFIG_NET_PCI=y -CONFIG_NET_VENDOR_INTEL=y CONFIG_E100=m CONFIG_E1000=y -CONFIG_TIGON3=y -CONFIG_NETCONSOLE=y # CONFIG_SERIO_SERPORT is not set CONFIG_GAMEPORT=m CONFIG_SERIAL_NONSTANDARD=y @@ -146,7 +142,6 @@ CONFIG_REISERFS_FS_XATTR=y CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y CONFIG_XFS_FS=y -CONFIG_AUTOFS_FS=y CONFIG_AUTOFS4_FS=y CONFIG_ISO9660_FS=m CONFIG_JOLIET=y @@ -157,16 +152,10 @@ CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_HUGETLBFS=y CONFIG_NFS_FS=m -CONFIG_NFS_V3=y -CONFIG_NFS_V4=y +CONFIG_NFS_V4=m CONFIG_NFSD=m CONFIG_NFSD_V4=y -CONFIG_SMB_FS=m -CONFIG_SMB_NLS_DEFAULT=y CONFIG_CIFS=m -CONFIG_PARTITION_ADVANCED=y -CONFIG_SGI_PARTITION=y -CONFIG_EFI_PARTITION=y CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_CODEPAGE_737=m CONFIG_NLS_CODEPAGE_775=m diff --git a/arch/ia64/configs/sim_defconfig b/arch/ia64/configs/sim_defconfig index b4548a3e82d5..f0f69fdbddae 100644 --- a/arch/ia64/configs/sim_defconfig +++ b/arch/ia64/configs/sim_defconfig @@ -1,13 +1,12 @@ -CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_LOG_BUF_SHIFT=16 -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_MODVERSIONS=y +CONFIG_PARTITION_ADVANCED=y CONFIG_IA64_HP_SIM=y CONFIG_MCKINLEY=y CONFIG_IA64_PAGE_SIZE_64KB=y @@ -27,7 +26,6 @@ CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_RAM=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y -CONFIG_SCSI_MULTI_LUN=y CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y CONFIG_SCSI_SPI_ATTRS=y @@ -49,8 +47,6 @@ CONFIG_HUGETLBFS=y CONFIG_NFS_FS=y CONFIG_NFSD=y CONFIG_NFSD_V3=y -CONFIG_PARTITION_ADVANCED=y -CONFIG_EFI_PARTITION=y +CONFIG_DEBUG_INFO=y CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_MUTEXES=y -CONFIG_DEBUG_INFO=y diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig index c8a3f40e77f6..192ed157c9ce 100644 --- a/arch/ia64/configs/tiger_defconfig +++ b/arch/ia64/configs/tiger_defconfig @@ -1,4 +1,3 @@ -CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y CONFIG_IKCONFIG=y @@ -11,6 +10,8 @@ CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y CONFIG_MODULE_SRCVERSION_ALL=y # CONFIG_BLK_DEV_BSG is not set +CONFIG_PARTITION_ADVANCED=y +CONFIG_SGI_PARTITION=y CONFIG_IA64_DIG=y CONFIG_MCKINLEY=y CONFIG_IA64_PAGE_SIZE_64KB=y @@ -29,14 +30,12 @@ CONFIG_BINFMT_MISC=m CONFIG_ACPI_BUTTON=m CONFIG_ACPI_FAN=m CONFIG_ACPI_PROCESSOR=m -CONFIG_ACPI_CONTAINER=m CONFIG_HOTPLUG_PCI=y -CONFIG_HOTPLUG_PCI_ACPI=m +CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_MULTICAST=y -CONFIG_ARPD=y CONFIG_SYN_COOKIES=y # CONFIG_IPV6 is not set CONFIG_BLK_DEV_LOOP=m @@ -53,6 +52,7 @@ CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=m CONFIG_BLK_DEV_SR=m CONFIG_CHR_DEV_SG=m +CONFIG_SCSI_FC_ATTRS=y CONFIG_SCSI_SYM53C8XX_2=y CONFIG_SCSI_QLOGIC_1280=y CONFIG_MD=y @@ -72,15 +72,12 @@ CONFIG_FUSION_FC=y CONFIG_FUSION_CTL=y CONFIG_NETDEVICES=y CONFIG_DUMMY=m -CONFIG_NET_ETHERNET=y +CONFIG_NETCONSOLE=y +CONFIG_TIGON3=y CONFIG_NET_TULIP=y CONFIG_TULIP=m -CONFIG_NET_PCI=y -CONFIG_NET_VENDOR_INTEL=y CONFIG_E100=m CONFIG_E1000=y -CONFIG_TIGON3=y -CONFIG_NETCONSOLE=y # CONFIG_SERIO_SERPORT is not set CONFIG_GAMEPORT=m CONFIG_SERIAL_NONSTANDARD=y @@ -118,7 +115,6 @@ CONFIG_REISERFS_FS_XATTR=y CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y CONFIG_XFS_FS=y -CONFIG_AUTOFS_FS=y CONFIG_AUTOFS4_FS=y CONFIG_ISO9660_FS=m CONFIG_JOLIET=y @@ -129,16 +125,10 @@ CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_HUGETLBFS=y CONFIG_NFS_FS=m -CONFIG_NFS_V3=y -CONFIG_NFS_V4=y +CONFIG_NFS_V4=m CONFIG_NFSD=m CONFIG_NFSD_V4=y -CONFIG_SMB_FS=m -CONFIG_SMB_NLS_DEFAULT=y CONFIG_CIFS=m -CONFIG_PARTITION_ADVANCED=y -CONFIG_SGI_PARTITION=y -CONFIG_EFI_PARTITION=y CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_CODEPAGE_737=m CONFIG_NLS_CODEPAGE_775=m @@ -180,6 +170,5 @@ CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_MUTEXES=y CONFIG_IA64_GRANULE_16MB=y -CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_PCBC=m CONFIG_CRYPTO_MD5=y diff --git a/arch/ia64/configs/zx1_defconfig b/arch/ia64/configs/zx1_defconfig index 54bc72eda30d..b504c8e2fd52 100644 --- a/arch/ia64/configs/zx1_defconfig +++ b/arch/ia64/configs/zx1_defconfig @@ -1,9 +1,9 @@ -CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y CONFIG_BSD_PROCESS_ACCT=y CONFIG_BLK_DEV_INITRD=y CONFIG_KPROBES=y CONFIG_MODULES=y +CONFIG_PARTITION_ADVANCED=y CONFIG_IA64_HP_ZX1=y CONFIG_MCKINLEY=y CONFIG_SMP=y @@ -18,6 +18,7 @@ CONFIG_EFI_VARS=y CONFIG_BINFMT_MISC=y CONFIG_HOTPLUG_PCI=y CONFIG_HOTPLUG_PCI_ACPI=y +CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_INET=y @@ -37,9 +38,9 @@ CONFIG_CHR_DEV_OSST=y CONFIG_BLK_DEV_SR=y CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=y -CONFIG_SCSI_MULTI_LUN=y CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y +CONFIG_SCSI_FC_ATTRS=y CONFIG_SCSI_SYM53C8XX_2=y CONFIG_SCSI_QLOGIC_1280=y CONFIG_FUSION=y @@ -48,18 +49,15 @@ CONFIG_FUSION_FC=y CONFIG_FUSION_CTL=m CONFIG_NETDEVICES=y CONFIG_DUMMY=y -CONFIG_NET_ETHERNET=y +CONFIG_TIGON3=y CONFIG_NET_TULIP=y CONFIG_TULIP=y CONFIG_TULIP_MWI=y CONFIG_TULIP_MMIO=y CONFIG_TULIP_NAPI=y CONFIG_TULIP_NAPI_HW_MITIGATION=y -CONFIG_NET_PCI=y -CONFIG_NET_VENDOR_INTEL=y CONFIG_E100=y CONFIG_E1000=y -CONFIG_TIGON3=y CONFIG_INPUT_JOYDEV=y CONFIG_INPUT_EVDEV=y # CONFIG_INPUT_KEYBOARD is not set @@ -100,7 +98,6 @@ CONFIG_USB_STORAGE=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT3_FS=y -CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_UDF_FS=y @@ -110,12 +107,9 @@ CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_HUGETLBFS=y CONFIG_NFS_FS=y -CONFIG_NFS_V3=y CONFIG_NFS_V4=y CONFIG_NFSD=y CONFIG_NFSD_V3=y -CONFIG_PARTITION_ADVANCED=y -CONFIG_EFI_PARTITION=y CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_CODEPAGE_737=y CONFIG_NLS_CODEPAGE_775=y From d26a7730b5874a5fa6779c62f4ad7c5065a94723 Mon Sep 17 00:00:00 2001 From: John David Anglin Date: Mon, 22 Sep 2014 20:54:50 -0400 Subject: [PATCH 150/172] parisc: Only use -mfast-indirect-calls option for 32-bit kernel builds In spite of what the GCC manual says, the -mfast-indirect-calls has never been supported in the 64-bit parisc compiler. Indirect calls have always been done using function descriptors irrespective of the -mfast-indirect-calls option. Recently, it was noticed that a function descriptor was always requested when the -mfast-indirect-calls option was specified. This caused problems when the option was used in application code and doesn't make any sense because the whole point of the option is to avoid using a function descriptor for indirect calls. Fixing this broke 64-bit kernel builds. I will fix GCC but for now we need the attached change. This results in the same kernel code as before. Signed-off-by: John David Anglin Cc: stable@vger.kernel.org # v3.0+ Signed-off-by: Helge Deller --- arch/parisc/Makefile | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index 7187664034c3..5db8882f732c 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -48,7 +48,12 @@ cflags-y := -pipe # These flags should be implied by an hppa-linux configuration, but they # are not in gcc 3.2. -cflags-y += -mno-space-regs -mfast-indirect-calls +cflags-y += -mno-space-regs + +# -mfast-indirect-calls is only relevant for 32-bit kernels. +ifndef CONFIG_64BIT +cflags-y += -mfast-indirect-calls +endif # Currently we save and restore fpregs on all kernel entry/interruption paths. # If that gets optimized, we might need to disable the use of fpregs in the From 1233f59f745b237d85f12aa9cf12ffab469f322d Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 22 Jul 2014 23:27:14 +0400 Subject: [PATCH 151/172] phy: Renesas R-Car Gen2 PHY driver This PHY, though formally being a part of Renesas USBHS controller, contains the UGCTRL2 register that controls multiplexing of the USB ports (Renesas calls them channels) to the different USB controllers: channel 0 can be connected to either PCI EHCI/OHCI or USBHS controllers, channel 2 can be connected to PCI EHCI/OHCI or xHCI controllers. This is a new driver for this USB PHY currently already supported under drivers/ usb/phy/. The reason for writing the new driver was the requirement that the multiplexing of USB channels to the controller be dynamic, depending on what USB drivers are loaded, rather than static as provided by the old driver. The infrastructure provided by drivers/phy/phy-core.c seems to fit that purpose ideally. The new driver only supports device tree probing for now. Signed-off-by: Sergei Shtylyov Signed-off-by: Kishon Vijay Abraham I --- .../devicetree/bindings/phy/rcar-gen2-phy.txt | 51 +++ drivers/phy/Kconfig | 7 + drivers/phy/Makefile | 1 + drivers/phy/phy-rcar-gen2.c | 341 ++++++++++++++++++ 4 files changed, 400 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt create mode 100644 drivers/phy/phy-rcar-gen2.c diff --git a/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt b/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt new file mode 100644 index 000000000000..00fc52a034b7 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt @@ -0,0 +1,51 @@ +* Renesas R-Car generation 2 USB PHY + +This file provides information on what the device node for the R-Car generation +2 USB PHY contains. + +Required properties: +- compatible: "renesas,usb-phy-r8a7790" if the device is a part of R8A7790 SoC. + "renesas,usb-phy-r8a7791" if the device is a part of R8A7791 SoC. +- reg: offset and length of the register block. +- #address-cells: number of address cells for the USB channel subnodes, must + be <1>. +- #size-cells: number of size cells for the USB channel subnodes, must be <0>. +- clocks: clock phandle and specifier pair. +- clock-names: string, clock input name, must be "usbhs". + +The USB PHY device tree node should have the subnodes corresponding to the USB +channels. These subnodes must contain the following properties: +- reg: the USB controller selector; see the table below for the values. +- #phy-cells: see phy-bindings.txt in the same directory, must be <1>. + +The phandle's argument in the PHY specifier is the USB controller selector for +the USB channel; see the selector meanings below: + ++-----------+---------------+---------------+ +|\ Selector | | | ++ --------- + 0 | 1 | +| Channel \| | | ++-----------+---------------+---------------+ +| 0 | PCI EHCI/OHCI | HS-USB | +| 2 | PCI EHCI/OHCI | xHCI | ++-----------+---------------+---------------+ + +Example (Lager board): + + usb-phy@e6590100 { + compatible = "renesas,usb-phy-r8a7790"; + reg = <0 0xe6590100 0 0x100>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&mstp7_clks R8A7790_CLK_HSUSB>; + clock-names = "usbhs"; + + usb-channel@0 { + reg = <0>; + #phy-cells = <1>; + }; + usb-channel@2 { + reg = <2>; + #phy-cells = <1>; + }; + }; diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index f833aa271a2e..1802fa767aa5 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -48,6 +48,13 @@ config PHY_MIPHY365X Enable this to support the miphy transceiver (for SATA/PCIE) that is part of STMicroelectronics STiH41x SoC series. +config PHY_RCAR_GEN2 + tristate "Renesas R-Car generation 2 USB PHY driver" + depends on ARCH_SHMOBILE + depends on GENERIC_PHY + help + Support for USB PHY found on Renesas R-Car generation 2 SoCs. + config OMAP_CONTROL_PHY tristate "OMAP CONTROL PHY Driver" depends on ARCH_OMAP2PLUS || COMPILE_TEST diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index 95c69ed5ed45..8ac9df5bd069 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO) += phy-exynos-dp-video.o obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO) += phy-exynos-mipi-video.o obj-$(CONFIG_PHY_MVEBU_SATA) += phy-mvebu-sata.o obj-$(CONFIG_PHY_MIPHY365X) += phy-miphy365x.o +obj-$(CONFIG_PHY_RCAR_GEN2) += phy-rcar-gen2.o obj-$(CONFIG_OMAP_CONTROL_PHY) += phy-omap-control.o obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o obj-$(CONFIG_TI_PIPE3) += phy-ti-pipe3.o diff --git a/drivers/phy/phy-rcar-gen2.c b/drivers/phy/phy-rcar-gen2.c new file mode 100644 index 000000000000..2793af17799f --- /dev/null +++ b/drivers/phy/phy-rcar-gen2.c @@ -0,0 +1,341 @@ +/* + * Renesas R-Car Gen2 PHY driver + * + * Copyright (C) 2014 Renesas Solutions Corp. + * Copyright (C) 2014 Cogent Embedded, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define USBHS_LPSTS 0x02 +#define USBHS_UGCTRL 0x80 +#define USBHS_UGCTRL2 0x84 +#define USBHS_UGSTS 0x88 /* The manuals have 0x90 */ + +/* Low Power Status register (LPSTS) */ +#define USBHS_LPSTS_SUSPM 0x4000 + +/* USB General control register (UGCTRL) */ +#define USBHS_UGCTRL_CONNECT 0x00000004 +#define USBHS_UGCTRL_PLLRESET 0x00000001 + +/* USB General control register 2 (UGCTRL2) */ +#define USBHS_UGCTRL2_USB2SEL 0x80000000 +#define USBHS_UGCTRL2_USB2SEL_PCI 0x00000000 +#define USBHS_UGCTRL2_USB2SEL_USB30 0x80000000 +#define USBHS_UGCTRL2_USB0SEL 0x00000030 +#define USBHS_UGCTRL2_USB0SEL_PCI 0x00000010 +#define USBHS_UGCTRL2_USB0SEL_HS_USB 0x00000030 + +/* USB General status register (UGSTS) */ +#define USBHS_UGSTS_LOCK 0x00000300 /* The manuals have 0x3 */ + +#define PHYS_PER_CHANNEL 2 + +struct rcar_gen2_phy { + struct phy *phy; + struct rcar_gen2_channel *channel; + int number; + u32 select_value; +}; + +struct rcar_gen2_channel { + struct device_node *of_node; + struct rcar_gen2_phy_driver *drv; + struct rcar_gen2_phy phys[PHYS_PER_CHANNEL]; + int selected_phy; + u32 select_mask; +}; + +struct rcar_gen2_phy_driver { + void __iomem *base; + struct clk *clk; + spinlock_t lock; + int num_channels; + struct rcar_gen2_channel *channels; +}; + +static int rcar_gen2_phy_init(struct phy *p) +{ + struct rcar_gen2_phy *phy = phy_get_drvdata(p); + struct rcar_gen2_channel *channel = phy->channel; + struct rcar_gen2_phy_driver *drv = channel->drv; + unsigned long flags; + u32 ugctrl2; + + /* + * Try to acquire exclusive access to PHY. The first driver calling + * phy_init() on a given channel wins, and all attempts to use another + * PHY on this channel will fail until phy_exit() is called by the first + * driver. Achieving this with cmpxcgh() should be SMP-safe. + */ + if (cmpxchg(&channel->selected_phy, -1, phy->number) != -1) + return -EBUSY; + + clk_prepare_enable(drv->clk); + + spin_lock_irqsave(&drv->lock, flags); + ugctrl2 = readl(drv->base + USBHS_UGCTRL2); + ugctrl2 &= ~channel->select_mask; + ugctrl2 |= phy->select_value; + writel(ugctrl2, drv->base + USBHS_UGCTRL2); + spin_unlock_irqrestore(&drv->lock, flags); + return 0; +} + +static int rcar_gen2_phy_exit(struct phy *p) +{ + struct rcar_gen2_phy *phy = phy_get_drvdata(p); + struct rcar_gen2_channel *channel = phy->channel; + + clk_disable_unprepare(channel->drv->clk); + + channel->selected_phy = -1; + + return 0; +} + +static int rcar_gen2_phy_power_on(struct phy *p) +{ + struct rcar_gen2_phy *phy = phy_get_drvdata(p); + struct rcar_gen2_phy_driver *drv = phy->channel->drv; + void __iomem *base = drv->base; + unsigned long flags; + u32 value; + int err = 0, i; + + /* Skip if it's not USBHS */ + if (phy->select_value != USBHS_UGCTRL2_USB0SEL_HS_USB) + return 0; + + spin_lock_irqsave(&drv->lock, flags); + + /* Power on USBHS PHY */ + value = readl(base + USBHS_UGCTRL); + value &= ~USBHS_UGCTRL_PLLRESET; + writel(value, base + USBHS_UGCTRL); + + value = readw(base + USBHS_LPSTS); + value |= USBHS_LPSTS_SUSPM; + writew(value, base + USBHS_LPSTS); + + for (i = 0; i < 20; i++) { + value = readl(base + USBHS_UGSTS); + if ((value & USBHS_UGSTS_LOCK) == USBHS_UGSTS_LOCK) { + value = readl(base + USBHS_UGCTRL); + value |= USBHS_UGCTRL_CONNECT; + writel(value, base + USBHS_UGCTRL); + goto out; + } + udelay(1); + } + + /* Timed out waiting for the PLL lock */ + err = -ETIMEDOUT; + +out: + spin_unlock_irqrestore(&drv->lock, flags); + + return err; +} + +static int rcar_gen2_phy_power_off(struct phy *p) +{ + struct rcar_gen2_phy *phy = phy_get_drvdata(p); + struct rcar_gen2_phy_driver *drv = phy->channel->drv; + void __iomem *base = drv->base; + unsigned long flags; + u32 value; + + /* Skip if it's not USBHS */ + if (phy->select_value != USBHS_UGCTRL2_USB0SEL_HS_USB) + return 0; + + spin_lock_irqsave(&drv->lock, flags); + + /* Power off USBHS PHY */ + value = readl(base + USBHS_UGCTRL); + value &= ~USBHS_UGCTRL_CONNECT; + writel(value, base + USBHS_UGCTRL); + + value = readw(base + USBHS_LPSTS); + value &= ~USBHS_LPSTS_SUSPM; + writew(value, base + USBHS_LPSTS); + + value = readl(base + USBHS_UGCTRL); + value |= USBHS_UGCTRL_PLLRESET; + writel(value, base + USBHS_UGCTRL); + + spin_unlock_irqrestore(&drv->lock, flags); + + return 0; +} + +static struct phy_ops rcar_gen2_phy_ops = { + .init = rcar_gen2_phy_init, + .exit = rcar_gen2_phy_exit, + .power_on = rcar_gen2_phy_power_on, + .power_off = rcar_gen2_phy_power_off, + .owner = THIS_MODULE, +}; + +static const struct of_device_id rcar_gen2_phy_match_table[] = { + { .compatible = "renesas,usb-phy-r8a7790" }, + { .compatible = "renesas,usb-phy-r8a7791" }, + { } +}; +MODULE_DEVICE_TABLE(of, rcar_gen2_phy_match_table); + +static struct phy *rcar_gen2_phy_xlate(struct device *dev, + struct of_phandle_args *args) +{ + struct rcar_gen2_phy_driver *drv; + struct device_node *np = args->np; + int i; + + if (!of_device_is_available(np)) { + dev_warn(dev, "Requested PHY is disabled\n"); + return ERR_PTR(-ENODEV); + } + + drv = dev_get_drvdata(dev); + if (!drv) + return ERR_PTR(-EINVAL); + + for (i = 0; i < drv->num_channels; i++) { + if (np == drv->channels[i].of_node) + break; + } + + if (i >= drv->num_channels || args->args[0] >= 2) + return ERR_PTR(-ENODEV); + + return drv->channels[i].phys[args->args[0]].phy; +} + +static const u32 select_mask[] = { + [0] = USBHS_UGCTRL2_USB0SEL, + [2] = USBHS_UGCTRL2_USB2SEL, +}; + +static const u32 select_value[][PHYS_PER_CHANNEL] = { + [0] = { USBHS_UGCTRL2_USB0SEL_PCI, USBHS_UGCTRL2_USB0SEL_HS_USB }, + [2] = { USBHS_UGCTRL2_USB2SEL_PCI, USBHS_UGCTRL2_USB2SEL_USB30 }, +}; + +static int rcar_gen2_phy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct rcar_gen2_phy_driver *drv; + struct phy_provider *provider; + struct device_node *np; + struct resource *res; + void __iomem *base; + struct clk *clk; + int i = 0; + + if (!dev->of_node) { + dev_err(dev, + "This driver is required to be instantiated from device tree\n"); + return -EINVAL; + } + + clk = devm_clk_get(dev, "usbhs"); + if (IS_ERR(clk)) { + dev_err(dev, "Can't get USBHS clock\n"); + return PTR_ERR(clk); + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + base = devm_ioremap_resource(dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); + + drv = devm_kzalloc(dev, sizeof(*drv), GFP_KERNEL); + if (!drv) + return -ENOMEM; + + spin_lock_init(&drv->lock); + + drv->clk = clk; + drv->base = base; + + drv->num_channels = of_get_child_count(dev->of_node); + drv->channels = devm_kcalloc(dev, drv->num_channels, + sizeof(struct rcar_gen2_channel), + GFP_KERNEL); + if (!drv->channels) + return -ENOMEM; + + for_each_child_of_node(dev->of_node, np) { + struct rcar_gen2_channel *channel = drv->channels + i; + u32 channel_num; + int error, n; + + channel->of_node = np; + channel->drv = drv; + channel->selected_phy = -1; + + error = of_property_read_u32(np, "reg", &channel_num); + if (error || channel_num > 2) { + dev_err(dev, "Invalid \"reg\" property\n"); + return error; + } + channel->select_mask = select_mask[channel_num]; + + for (n = 0; n < PHYS_PER_CHANNEL; n++) { + struct rcar_gen2_phy *phy = &channel->phys[n]; + + phy->channel = channel; + phy->number = n; + phy->select_value = select_value[channel_num][n]; + + phy->phy = devm_phy_create(dev, NULL, + &rcar_gen2_phy_ops, NULL); + if (IS_ERR(phy->phy)) { + dev_err(dev, "Failed to create PHY\n"); + return PTR_ERR(phy->phy); + } + phy_set_drvdata(phy->phy, phy); + } + + i++; + } + + provider = devm_of_phy_provider_register(dev, rcar_gen2_phy_xlate); + if (IS_ERR(provider)) { + dev_err(dev, "Failed to register PHY provider\n"); + return PTR_ERR(provider); + } + + dev_set_drvdata(dev, drv); + + return 0; +} + +static struct platform_driver rcar_gen2_phy_driver = { + .driver = { + .name = "phy_rcar_gen2", + .of_match_table = rcar_gen2_phy_match_table, + }, + .probe = rcar_gen2_phy_probe, +}; + +module_platform_driver(rcar_gen2_phy_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Renesas R-Car Gen2 PHY"); +MODULE_AUTHOR("Sergei Shtylyov "); From 437a6bc478e6530efad9aeb04b84b2f5c4e356d5 Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Fri, 15 Aug 2014 13:40:08 +0100 Subject: [PATCH 152/172] phy: phy-omap-control: Remove unncessary site specific OOM messages The site specific OOM messages are unncessary, because they duplicate messages from the memory subsystem which include dump_stack(). Removing these superflous messages makes the kernel smaller. A discussion here http://patchwork.ozlabs.org/patch/324158/ found that all error paths from kzalloc will print a error message, and that any error path which maybe found which doesn't would be considered a bug in kzalloc. Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-omap-control.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/phy/phy-omap-control.c b/drivers/phy/phy-omap-control.c index 9487bf112267..cb2f4d1c14aa 100644 --- a/drivers/phy/phy-omap-control.c +++ b/drivers/phy/phy-omap-control.c @@ -295,10 +295,8 @@ static int omap_control_phy_probe(struct platform_device *pdev) control_phy = devm_kzalloc(&pdev->dev, sizeof(*control_phy), GFP_KERNEL); - if (!control_phy) { - dev_err(&pdev->dev, "unable to alloc memory for control phy\n"); + if (!control_phy) return -ENOMEM; - } control_phy->dev = &pdev->dev; control_phy->type = *(enum omap_control_phy_type *)of_id->data; From 1f8de849cf8399ff287bab560d04df4515ec73c0 Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Fri, 15 Aug 2014 13:40:09 +0100 Subject: [PATCH 153/172] phy: phy-mvebu-sata: Add missing error check for devm_kzalloc Currently this driver is missing a check on the return value of devm_kzalloc, which would cause a NULL pointer dereference in a OOM situation. This patch adds the aformentioned missing check. Signed-off-by: Peter Griffin Acked-by: Andrew Lunn Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-mvebu-sata.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/phy/phy-mvebu-sata.c b/drivers/phy/phy-mvebu-sata.c index cc3c0e166daf..10bb8e5aa940 100644 --- a/drivers/phy/phy-mvebu-sata.c +++ b/drivers/phy/phy-mvebu-sata.c @@ -89,6 +89,8 @@ static int phy_mvebu_sata_probe(struct platform_device *pdev) struct phy *phy; priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); priv->base = devm_ioremap_resource(&pdev->dev, res); From 0b68253d9f8d25728bd2b7ec378bfb5e116cbe17 Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Fri, 15 Aug 2014 13:40:10 +0100 Subject: [PATCH 154/172] phy: phy-omap-usb2: Remove unncessary site specific OOM messages The site specific OOM messages are unncessary, because they duplicate messages from the memory subsystem which include dump_stack(). Removing these superflous messages makes the kernel smaller. A discussion here http://patchwork.ozlabs.org/patch/324158/ found that all error paths from kzalloc will print a error message, and that any error path which maybe found which doesn't would be considered a bug in kzalloc. Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-omap-usb2.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c index 93d78359246c..51c6f92220c5 100644 --- a/drivers/phy/phy-omap-usb2.c +++ b/drivers/phy/phy-omap-usb2.c @@ -212,16 +212,12 @@ static int omap_usb2_probe(struct platform_device *pdev) phy_data = (struct usb_phy_data *)of_id->data; phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); - if (!phy) { - dev_err(&pdev->dev, "unable to allocate memory for USB2 PHY\n"); + if (!phy) return -ENOMEM; - } otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL); - if (!otg) { - dev_err(&pdev->dev, "unable to allocate memory for USB OTG\n"); + if (!otg) return -ENOMEM; - } phy->dev = &pdev->dev; From 3a4cfcbbaf675eca0d6a3be224212a98cca60c2b Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Fri, 15 Aug 2014 13:40:11 +0100 Subject: [PATCH 155/172] phy: phy-ti-pipe3: Remove unncessary site specific OOM messages The site specific OOM messages are unncessary, because they duplicate messages from the memory subsystem which include dump_stack(). Removing these superflous messages makes the kernel smaller. A discussion here http://patchwork.ozlabs.org/patch/324158/ found that all error paths from kzalloc will print a error message, and that any error path which maybe found which doesn't would be considered a bug in kzalloc. Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-ti-pipe3.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/phy/phy-ti-pipe3.c b/drivers/phy/phy-ti-pipe3.c index b964aa967b46..9280ef8a05f5 100644 --- a/drivers/phy/phy-ti-pipe3.c +++ b/drivers/phy/phy-ti-pipe3.c @@ -299,10 +299,9 @@ static int ti_pipe3_probe(struct platform_device *pdev) struct clk *clk; phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); - if (!phy) { - dev_err(&pdev->dev, "unable to alloc mem for TI PIPE3 PHY\n"); + if (!phy) return -ENOMEM; - } + phy->dev = &pdev->dev; if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie")) { From 0e71e235638b9422b4c2c81e939a4d8d4509349a Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Fri, 15 Aug 2014 13:40:12 +0100 Subject: [PATCH 156/172] phy: phy-spear1310-miphy: Remove unncessary site specific OOM messages The site specific OOM messages are unncessary, because they duplicate messages from the memory subsystem which include dump_stack(). Removing these superflous messages makes the kernel smaller. A discussion here http://patchwork.ozlabs.org/patch/324158/ found that all error paths from kzalloc will print a error message, and that any error path which maybe found which doesn't would be considered a bug in kzalloc. Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-spear1310-miphy.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/phy/phy-spear1310-miphy.c b/drivers/phy/phy-spear1310-miphy.c index 6dcbfcddb372..911d25b53064 100644 --- a/drivers/phy/phy-spear1310-miphy.c +++ b/drivers/phy/phy-spear1310-miphy.c @@ -212,10 +212,8 @@ static int spear1310_miphy_probe(struct platform_device *pdev) struct phy_provider *phy_provider; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); - if (!priv) { - dev_err(dev, "can't alloc spear1310_miphy private date memory\n"); + if (!priv) return -ENOMEM; - } priv->misc = syscon_regmap_lookup_by_phandle(dev->of_node, "misc"); From 556bdebb3bb155459d3ed1d0c23fdb34cd46af33 Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Fri, 15 Aug 2014 13:40:13 +0100 Subject: [PATCH 157/172] phy: phy-spear1340-miphy: Remove unncessary site specific OOM messages The site specific OOM messages are unncessary, because they duplicate messages from the memory subsystem which include dump_stack(). Removing these superflous messages makes the kernel smaller. A discussion here http://patchwork.ozlabs.org/patch/324158/ found that all error paths from kzalloc will print a error message, and that any error path which maybe found which doesn't would be considered a bug in kzalloc. Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-spear1340-miphy.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/phy/phy-spear1340-miphy.c b/drivers/phy/phy-spear1340-miphy.c index 7135ba2603b6..ee4d66f588e3 100644 --- a/drivers/phy/phy-spear1340-miphy.c +++ b/drivers/phy/phy-spear1340-miphy.c @@ -249,10 +249,8 @@ static int spear1340_miphy_probe(struct platform_device *pdev) struct phy_provider *phy_provider; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); - if (!priv) { - dev_err(dev, "can't alloc spear1340_miphy private date memory\n"); + if (!priv) return -ENOMEM; - } priv->misc = syscon_regmap_lookup_by_phandle(dev->of_node, "misc"); From 7e65e9c94a0d8dba3a6e1e2052fca26d6ca853e7 Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Fri, 15 Aug 2014 13:40:15 +0100 Subject: [PATCH 158/172] phy: phy-spear1310-miphy: Use module_platform_driver to register driver. Use the module_platform_driver macro to register the driver as this gets rid of a lot of the boilerplate code. Also remove .owner field as this gets overridden in __platform_driver_register. Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-spear1310-miphy.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/drivers/phy/phy-spear1310-miphy.c b/drivers/phy/phy-spear1310-miphy.c index 911d25b53064..5f4c586ee951 100644 --- a/drivers/phy/phy-spear1310-miphy.c +++ b/drivers/phy/phy-spear1310-miphy.c @@ -250,22 +250,11 @@ static struct platform_driver spear1310_miphy_driver = { .probe = spear1310_miphy_probe, .driver = { .name = "spear1310-miphy", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(spear1310_miphy_of_match), }, }; -static int __init spear1310_miphy_phy_init(void) -{ - return platform_driver_register(&spear1310_miphy_driver); -} -module_init(spear1310_miphy_phy_init); - -static void __exit spear1310_miphy_phy_exit(void) -{ - platform_driver_unregister(&spear1310_miphy_driver); -} -module_exit(spear1310_miphy_phy_exit); +module_platform_driver(spear1310_miphy_driver); MODULE_DESCRIPTION("ST SPEAR1310-MIPHY driver"); MODULE_AUTHOR("Pratyush Anand "); From 25451e5cb99d6e8ab848b9c2c277fef532240a5a Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Fri, 15 Aug 2014 13:40:16 +0100 Subject: [PATCH 159/172] phy: phy-spear1340-miphy: Use module_platform_driver to register driver. Using the module_platform_driver macro to register the driver as this gets rid of a lot of the boilerplate code. Also remove .owner field as this gets overridden in __platform_driver_register. Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-spear1340-miphy.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/drivers/phy/phy-spear1340-miphy.c b/drivers/phy/phy-spear1340-miphy.c index ee4d66f588e3..1ecd0945bad3 100644 --- a/drivers/phy/phy-spear1340-miphy.c +++ b/drivers/phy/phy-spear1340-miphy.c @@ -282,23 +282,12 @@ static struct platform_driver spear1340_miphy_driver = { .probe = spear1340_miphy_probe, .driver = { .name = "spear1340-miphy", - .owner = THIS_MODULE, .pm = &spear1340_miphy_pm_ops, .of_match_table = of_match_ptr(spear1340_miphy_of_match), }, }; -static int __init spear1340_miphy_phy_init(void) -{ - return platform_driver_register(&spear1340_miphy_driver); -} -module_init(spear1340_miphy_phy_init); - -static void __exit spear1340_miphy_phy_exit(void) -{ - platform_driver_unregister(&spear1340_miphy_driver); -} -module_exit(spear1340_miphy_phy_exit); +module_platform_driver(spear1340_miphy_driver); MODULE_DESCRIPTION("ST SPEAR1340-MIPHY driver"); MODULE_AUTHOR("Pratyush Anand "); From bb419402cc1075db508f9ee8cfff3618e111f744 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 18 Aug 2014 07:54:16 -0700 Subject: [PATCH 160/172] usb: phy: twl4030-usb: Remove unused irq_enabled It's not being used any longer. Signed-off-by: Tony Lindgren Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-twl4030-usb.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index 9cd33a4bcfb1..bc28eccb029e 100644 --- a/drivers/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -164,7 +164,6 @@ struct twl4030_usb { enum omap_musb_vbus_id_status linkstat; bool vbus_supplied; u8 asleep; - bool irq_enabled; struct delayed_work id_workaround_work; }; @@ -755,7 +754,6 @@ static int twl4030_usb_probe(struct platform_device *pdev) * set_host() and/or set_peripheral() ... OTG_capable boards * need both handles, otherwise just one suffices. */ - twl->irq_enabled = true; status = devm_request_threaded_irq(twl->dev, twl->irq, NULL, twl4030_usb_irq, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | IRQF_ONESHOT, "twl4030_usb", twl); From 62dc5769bbd9f187e2e5df64f4e3b5affd48fe7b Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 27 Aug 2014 16:28:08 -0700 Subject: [PATCH 161/172] usb: phy: twl4030-usb: Simplify phy init to use runtime PM We can now let the interrupt and delayed work do all that's needed with runtime PM. Signed-off-by: Tony Lindgren Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-twl4030-usb.c | 20 +++----------------- 1 file changed, 3 insertions(+), 17 deletions(-) diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index bc28eccb029e..a292db01b503 100644 --- a/drivers/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -471,16 +471,8 @@ static int twl4030_phy_power_on(struct phy *phy) twl4030_usb_set_mode(twl, twl->usb_mode); if (twl->usb_mode == T2_USB_MODE_ULPI) twl4030_i2c_access(twl, 0); + schedule_delayed_work(&twl->id_workaround_work, 0); - /* - * XXX When VBUS gets driven after musb goes to A mode, - * ID_PRES related interrupts no longer arrive, why? - * Register itself is updated fine though, so we must poll. - */ - if (twl->linkstat == OMAP_MUSB_ID_GROUND) { - cancel_delayed_work(&twl->id_workaround_work); - schedule_delayed_work(&twl->id_workaround_work, HZ); - } return 0; } @@ -612,16 +604,9 @@ static void twl4030_id_workaround_work(struct work_struct *work) static int twl4030_phy_init(struct phy *phy) { struct twl4030_usb *twl = phy_get_drvdata(phy); - enum omap_musb_vbus_id_status status; pm_runtime_get_sync(twl->dev); - status = twl4030_usb_linkstat(twl); - twl->linkstat = status; - - if (status == OMAP_MUSB_ID_GROUND || status == OMAP_MUSB_VBUS_VALID) - omap_musb_mailbox(twl->linkstat); - - sysfs_notify(&twl->dev->kobj, NULL, "vbus"); + schedule_delayed_work(&twl->id_workaround_work, 0); pm_runtime_mark_last_busy(twl->dev); pm_runtime_put_autosuspend(twl->dev); @@ -698,6 +683,7 @@ static int twl4030_usb_probe(struct platform_device *pdev) twl->dev = &pdev->dev; twl->irq = platform_get_irq(pdev, 0); twl->vbus_supplied = false; + twl->linkstat = -EINVAL; twl->asleep = 1; twl->linkstat = OMAP_MUSB_UNKNOWN; From bad8e33582cb3ea5f3a7a3517ca48e0a03be11a3 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 27 Aug 2014 16:28:09 -0700 Subject: [PATCH 162/172] usb: phy: twl4030-usb: Move code from twl4030_phy_power to the runtime PM calls We don't need twl4030_phy_power() any longer now that we have the runtime PM calls. Let's get rid of it as it's confusing. No functional changes, just move the code and use res instead of ret as we are not returning that value. Signed-off-by: Tony Lindgren Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-twl4030-usb.c | 72 +++++++++++++++-------------------- 1 file changed, 31 insertions(+), 41 deletions(-) diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index a292db01b503..519cc909b25a 100644 --- a/drivers/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -383,45 +383,6 @@ static void __twl4030_phy_power(struct twl4030_usb *twl, int on) WARN_ON(twl4030_usb_write_verify(twl, PHY_PWR_CTRL, pwr) < 0); } -static void twl4030_phy_power(struct twl4030_usb *twl, int on) -{ - int ret; - - if (on) { - ret = regulator_enable(twl->usb3v1); - if (ret) - dev_err(twl->dev, "Failed to enable usb3v1\n"); - - ret = regulator_enable(twl->usb1v8); - if (ret) - dev_err(twl->dev, "Failed to enable usb1v8\n"); - - /* - * Disabling usb3v1 regulator (= writing 0 to VUSB3V1_DEV_GRP - * in twl4030) resets the VUSB_DEDICATED2 register. This reset - * enables VUSB3V1_SLEEP bit that remaps usb3v1 ACTIVE state to - * SLEEP. We work around this by clearing the bit after usv3v1 - * is re-activated. This ensures that VUSB3V1 is really active. - */ - twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2); - - ret = regulator_enable(twl->usb1v5); - if (ret) - dev_err(twl->dev, "Failed to enable usb1v5\n"); - - __twl4030_phy_power(twl, 1); - twl4030_usb_write(twl, PHY_CLK_CTRL, - twl4030_usb_read(twl, PHY_CLK_CTRL) | - (PHY_CLK_CTRL_CLOCKGATING_EN | - PHY_CLK_CTRL_CLK32K_EN)); - } else { - __twl4030_phy_power(twl, 0); - regulator_disable(twl->usb1v5); - regulator_disable(twl->usb1v8); - regulator_disable(twl->usb3v1); - } -} - static int twl4030_usb_runtime_suspend(struct device *dev) { struct twl4030_usb *twl = dev_get_drvdata(dev); @@ -430,7 +391,10 @@ static int twl4030_usb_runtime_suspend(struct device *dev) if (twl->asleep) return 0; - twl4030_phy_power(twl, 0); + __twl4030_phy_power(twl, 0); + regulator_disable(twl->usb1v5); + regulator_disable(twl->usb1v8); + regulator_disable(twl->usb3v1); twl->asleep = 1; return 0; @@ -439,12 +403,38 @@ static int twl4030_usb_runtime_suspend(struct device *dev) static int twl4030_usb_runtime_resume(struct device *dev) { struct twl4030_usb *twl = dev_get_drvdata(dev); + int res; dev_dbg(twl->dev, "%s\n", __func__); if (!twl->asleep) return 0; - twl4030_phy_power(twl, 1); + res = regulator_enable(twl->usb3v1); + if (res) + dev_err(twl->dev, "Failed to enable usb3v1\n"); + + res = regulator_enable(twl->usb1v8); + if (res) + dev_err(twl->dev, "Failed to enable usb1v8\n"); + + /* + * Disabling usb3v1 regulator (= writing 0 to VUSB3V1_DEV_GRP + * in twl4030) resets the VUSB_DEDICATED2 register. This reset + * enables VUSB3V1_SLEEP bit that remaps usb3v1 ACTIVE state to + * SLEEP. We work around this by clearing the bit after usv3v1 + * is re-activated. This ensures that VUSB3V1 is really active. + */ + twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2); + + res = regulator_enable(twl->usb1v5); + if (res) + dev_err(twl->dev, "Failed to enable usb1v5\n"); + + __twl4030_phy_power(twl, 1); + twl4030_usb_write(twl, PHY_CLK_CTRL, + twl4030_usb_read(twl, PHY_CLK_CTRL) | + (PHY_CLK_CTRL_CLOCKGATING_EN | + PHY_CLK_CTRL_CLK32K_EN)); twl->asleep = 0; return 0; From 48f48e172c45e66e5323813fccc7dfd34e404bbe Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 27 Aug 2014 16:28:10 -0700 Subject: [PATCH 163/172] usb: phy: twl4030-usb: Remove asleep and rely on runtime PM There's no longer need for tracking the phy state in the driver with asleep, we can now rely on runtime PM. Signed-off-by: Tony Lindgren Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-twl4030-usb.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index 519cc909b25a..24ff3c6f1499 100644 --- a/drivers/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -163,7 +163,6 @@ struct twl4030_usb { int irq; enum omap_musb_vbus_id_status linkstat; bool vbus_supplied; - u8 asleep; struct delayed_work id_workaround_work; }; @@ -388,14 +387,13 @@ static int twl4030_usb_runtime_suspend(struct device *dev) struct twl4030_usb *twl = dev_get_drvdata(dev); dev_dbg(twl->dev, "%s\n", __func__); - if (twl->asleep) + if (pm_runtime_suspended(dev)) return 0; __twl4030_phy_power(twl, 0); regulator_disable(twl->usb1v5); regulator_disable(twl->usb1v8); regulator_disable(twl->usb3v1); - twl->asleep = 1; return 0; } @@ -406,7 +404,7 @@ static int twl4030_usb_runtime_resume(struct device *dev) int res; dev_dbg(twl->dev, "%s\n", __func__); - if (!twl->asleep) + if (pm_runtime_active(dev)) return 0; res = regulator_enable(twl->usb3v1); @@ -435,7 +433,6 @@ static int twl4030_usb_runtime_resume(struct device *dev) twl4030_usb_read(twl, PHY_CLK_CTRL) | (PHY_CLK_CTRL_CLOCKGATING_EN | PHY_CLK_CTRL_CLK32K_EN)); - twl->asleep = 0; return 0; } @@ -560,10 +557,10 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl) */ if ((status == OMAP_MUSB_VBUS_VALID) || (status == OMAP_MUSB_ID_GROUND)) { - if (twl->asleep) + if (pm_runtime_suspended(twl->dev)) pm_runtime_get_sync(twl->dev); } else { - if (!twl->asleep) { + if (pm_runtime_active(twl->dev)) { pm_runtime_mark_last_busy(twl->dev); pm_runtime_put_autosuspend(twl->dev); } @@ -572,7 +569,7 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl) } /* don't schedule during sleep - irq works right then */ - if (status == OMAP_MUSB_ID_GROUND && !twl->asleep) { + if (status == OMAP_MUSB_ID_GROUND && pm_runtime_active(twl->dev)) { cancel_delayed_work(&twl->id_workaround_work); schedule_delayed_work(&twl->id_workaround_work, HZ); } @@ -674,7 +671,6 @@ static int twl4030_usb_probe(struct platform_device *pdev) twl->irq = platform_get_irq(pdev, 0); twl->vbus_supplied = false; twl->linkstat = -EINVAL; - twl->asleep = 1; twl->linkstat = OMAP_MUSB_UNKNOWN; twl->phy.dev = twl->dev; From dcc35b2160f32b8528973e91c25595fc91354e92 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 27 Aug 2014 16:28:11 -0700 Subject: [PATCH 164/172] usb: phy: twl4030-usb: Use mutex instead of spinlock for protecting the data We're using threaded irq on a I2C bus and we're sleeping in twl4030_usb_irq() as it calls twl4030_usb_linkstat() which calls the i2c functions. If we ever need to lock for longer I2C transaction sequences a mutex will allow us to do that easily. Signed-off-by: Tony Lindgren Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-twl4030-usb.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index 24ff3c6f1499..1e0e2d1f7941 100644 --- a/drivers/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -28,7 +28,6 @@ #include #include #include -#include #include #include #include @@ -155,7 +154,7 @@ struct twl4030_usb { struct regulator *usb3v1; /* for vbus reporting with irqs disabled */ - spinlock_t lock; + struct mutex lock; /* pin configuration */ enum twl4030_usb_mode usb_mode; @@ -516,13 +515,12 @@ static ssize_t twl4030_usb_vbus_show(struct device *dev, struct device_attribute *attr, char *buf) { struct twl4030_usb *twl = dev_get_drvdata(dev); - unsigned long flags; int ret = -EINVAL; - spin_lock_irqsave(&twl->lock, flags); + mutex_lock(&twl->lock); ret = sprintf(buf, "%s\n", twl->vbus_supplied ? "on" : "off"); - spin_unlock_irqrestore(&twl->lock, flags); + mutex_unlock(&twl->lock); return ret; } @@ -536,12 +534,12 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl) status = twl4030_usb_linkstat(twl); - spin_lock_irq(&twl->lock); + mutex_lock(&twl->lock); if (status >= 0 && status != twl->linkstat) { twl->linkstat = status; status_changed = true; } - spin_unlock_irq(&twl->lock); + mutex_unlock(&twl->lock); if (status_changed) { /* FIXME add a set_power() method so that B-devices can @@ -695,8 +693,8 @@ static int twl4030_usb_probe(struct platform_device *pdev) if (IS_ERR(phy_provider)) return PTR_ERR(phy_provider); - /* init spinlock for workqueue */ - spin_lock_init(&twl->lock); + /* init mutex for workqueue */ + mutex_init(&twl->lock); INIT_DELAYED_WORK(&twl->id_workaround_work, twl4030_id_workaround_work); From 89ae1f5d4c9a62dd32e14d5edfb7221d2f73039e Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Thu, 11 Sep 2014 18:02:44 +0100 Subject: [PATCH 165/172] phy: phy-stih407-usb: Add usb picoPHY driver found on stih407 SoC family This is the generic phy driver for the picoPHY ports used by the USB2 and USB3 Host controllers when controlling usb2/1.1 devices. It is found on STiH407 SoC family from STMicroelectronics. Signed-off-by: Giuseppe Cavallaro Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/Kconfig | 9 ++ drivers/phy/Makefile | 1 + drivers/phy/phy-stih407-usb.c | 177 ++++++++++++++++++++++++++++++++++ 3 files changed, 187 insertions(+) create mode 100644 drivers/phy/phy-stih407-usb.c diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index 1802fa767aa5..11c66d7ae252 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -239,4 +239,13 @@ config PHY_XGENE help This option enables support for APM X-Gene SoC multi-purpose PHY. +config PHY_STIH407_USB + tristate "STMicroelectronics USB2 picoPHY driver for STiH407 family" + depends on RESET_CONTROLLER + depends on ARCH_STI || COMPILE_TEST + select GENERIC_PHY + help + Enable this support to enable the picoPHY device used by USB2 + and USB3 controllers on STMicroelectronics STiH407 SoC families. + endmenu diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index 8ac9df5bd069..a8d1e114a8af 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -29,3 +29,4 @@ obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA) += phy-qcom-ipq806x-sata.o obj-$(CONFIG_PHY_ST_SPEAR1310_MIPHY) += phy-spear1310-miphy.o obj-$(CONFIG_PHY_ST_SPEAR1340_MIPHY) += phy-spear1340-miphy.o obj-$(CONFIG_PHY_XGENE) += phy-xgene.o +obj-$(CONFIG_PHY_STIH407_USB) += phy-stih407-usb.o diff --git a/drivers/phy/phy-stih407-usb.c b/drivers/phy/phy-stih407-usb.c new file mode 100644 index 000000000000..42428d4181ea --- /dev/null +++ b/drivers/phy/phy-stih407-usb.c @@ -0,0 +1,177 @@ +/* + * Copyright (C) 2014 STMicroelectronics + * + * STMicroelectronics Generic PHY driver for STiH407 USB2. + * + * Author: Giuseppe Cavallaro + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2, as + * published by the Free Software Foundation. + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Default PHY_SEL and REFCLKSEL configuration */ +#define STIH407_USB_PICOPHY_CTRL_PORT_CONF 0x6 +#define STIH407_USB_PICOPHY_CTRL_PORT_MASK 0x1f + +/* ports parameters overriding */ +#define STIH407_USB_PICOPHY_PARAM_DEF 0x39a4dc +#define STIH407_USB_PICOPHY_PARAM_MASK 0xffffffff + +struct stih407_usb2_picophy { + struct phy *phy; + struct regmap *regmap; + struct device *dev; + struct reset_control *rstc; + struct reset_control *rstport; + int ctrl; + int param; +}; + +static int stih407_usb2_pico_ctrl(struct stih407_usb2_picophy *phy_dev) +{ + reset_control_deassert(phy_dev->rstc); + + return regmap_update_bits(phy_dev->regmap, phy_dev->ctrl, + STIH407_USB_PICOPHY_CTRL_PORT_MASK, + STIH407_USB_PICOPHY_CTRL_PORT_CONF); +} + +static int stih407_usb2_init_port(struct phy *phy) +{ + int ret; + struct stih407_usb2_picophy *phy_dev = phy_get_drvdata(phy); + + stih407_usb2_pico_ctrl(phy_dev); + + ret = regmap_update_bits(phy_dev->regmap, + phy_dev->param, + STIH407_USB_PICOPHY_PARAM_MASK, + STIH407_USB_PICOPHY_PARAM_DEF); + if (ret) + return ret; + + return reset_control_deassert(phy_dev->rstport); +} + +static int stih407_usb2_exit_port(struct phy *phy) +{ + struct stih407_usb2_picophy *phy_dev = phy_get_drvdata(phy); + + /* + * Only port reset is asserted, phy global reset is kept untouched + * as other ports may still be active. When all ports are in reset + * state, assumption is made that power will be cut off on the phy, in + * case of suspend for instance. Theoretically, asserting individual + * reset (like here) or global reset should be equivalent. + */ + return reset_control_assert(phy_dev->rstport); +} + +static const struct phy_ops stih407_usb2_picophy_data = { + .init = stih407_usb2_init_port, + .exit = stih407_usb2_exit_port, + .owner = THIS_MODULE, +}; + +static int stih407_usb2_picophy_probe(struct platform_device *pdev) +{ + struct stih407_usb2_picophy *phy_dev; + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct phy_provider *phy_provider; + struct phy *phy; + struct resource *res; + + phy_dev = devm_kzalloc(dev, sizeof(*phy_dev), GFP_KERNEL); + if (!phy_dev) + return -ENOMEM; + + phy_dev->dev = dev; + dev_set_drvdata(dev, phy_dev); + + phy_dev->rstc = devm_reset_control_get(dev, "global"); + if (IS_ERR(phy_dev->rstc)) { + dev_err(dev, "failed to ctrl picoPHY reset\n"); + return PTR_ERR(phy_dev->rstc); + } + + phy_dev->rstport = devm_reset_control_get(dev, "port"); + if (IS_ERR(phy_dev->rstport)) { + dev_err(dev, "failed to ctrl picoPHY reset\n"); + return PTR_ERR(phy_dev->rstport); + } + + /* Reset port by default: only deassert it in phy init */ + reset_control_assert(phy_dev->rstport); + + phy_dev->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg"); + if (IS_ERR(phy_dev->regmap)) { + dev_err(dev, "No syscfg phandle specified\n"); + return PTR_ERR(phy_dev->regmap); + } + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ctrl"); + if (!res) { + dev_err(dev, "No ctrl reg found\n"); + return -ENXIO; + } + phy_dev->ctrl = res->start; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "param"); + if (!res) { + dev_err(dev, "No param reg found\n"); + return -ENXIO; + } + phy_dev->param = res->start; + + phy = devm_phy_create(dev, NULL, &stih407_usb2_picophy_data, NULL); + if (IS_ERR(phy)) { + dev_err(dev, "failed to create Display Port PHY\n"); + return PTR_ERR(phy); + } + + phy_dev->phy = phy; + phy_set_drvdata(phy, phy_dev); + + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + if (IS_ERR(phy_provider)) + return PTR_ERR(phy_provider); + + dev_info(dev, "STiH407 USB Generic picoPHY driver probed!"); + + return 0; +} + +static const struct of_device_id stih407_usb2_picophy_of_match[] = { + { .compatible = "st,stih407-usb2-phy" }, + { /*sentinel */ }, +}; + +MODULE_DEVICE_TABLE(of, stih407_usb2_picophy_of_match); + +static struct platform_driver stih407_usb2_picophy_driver = { + .probe = stih407_usb2_picophy_probe, + .driver = { + .name = "stih407-usb-genphy", + .of_match_table = stih407_usb2_picophy_of_match, + } +}; + +module_platform_driver(stih407_usb2_picophy_driver); + +MODULE_AUTHOR("Giuseppe Cavallaro "); +MODULE_DESCRIPTION("STMicroelectronics Generic picoPHY driver for STiH407"); +MODULE_LICENSE("GPL v2"); From ea1e53c7f147c48e5227f7ba67224ee99b67f865 Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Thu, 11 Sep 2014 18:02:45 +0100 Subject: [PATCH 166/172] phy: phy-stih407-usb: Add dt documentation for USB picophy found on stih407 SoC family This patch adds the dt documentation for the usb picophy found on stih407 SoC family available from STMicroelectronics. Signed-off-by: Giuseppe Cavallaro Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- .../bindings/phy/phy-stih407-usb.txt | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/phy-stih407-usb.txt diff --git a/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt b/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt new file mode 100644 index 000000000000..1ef8228db73b --- /dev/null +++ b/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt @@ -0,0 +1,30 @@ +ST STiH407 USB PHY controller + +This file documents the dt bindings for the usb picoPHY driver which is the PHY for both USB2 and USB3 +host controllers (when controlling usb2/1.1 devices) available on STiH407 SoC family from STMicroelectronics. + +Required properties: +- compatible : should be "st,stih407-usb2-phy" +- reg : contain the offset and length of the system configuration registers + used as glue logic to control & parameter phy +- reg-names : the names of the system configuration registers in "reg", should be "param" and "reg" +- st,syscfg : sysconfig register to manage phy parameter at driver level +- resets : list of phandle and reset specifier pairs. There should be two entries, one + for the whole phy and one for the port +- reset-names : list of reset signal names. Should be "global" and "port" +See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt +See: Documentation/devicetree/bindings/reset/reset.txt + +Example: + +usb2_picophy0: usbpicophy@f8 { + compatible = "st,stih407-usb2-phy"; + reg = <0xf8 0x04>, /* syscfg 5062 */ + <0xf4 0x04>; /* syscfg 5061 */ + reg-names = "param", "ctrl"; + #phy-cells = <0>; + st,syscfg = <&syscfg_core>; + resets = <&softreset STIH407_PICOPHY_SOFTRESET>, + <&picophyreset STIH407_PICOPHY0_RESET>; + reset-names = "global", "port"; +}; From 6da969a5fe9768f4735480c91e4885cf9babf023 Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Thu, 11 Sep 2014 18:02:46 +0100 Subject: [PATCH 167/172] MAINTAINERS: Add phy-stih407-usb.c file to ARCH/STI architecture This patch adds the new phy-stih407-usb.c usb phy driver found on STMicroelectronics stih407 consumer electronics SoC's into the STI arch section of the maintainers file. Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 670b3dcce2de..93fd8afdd55e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1398,6 +1398,7 @@ F: drivers/media/rc/st_rc.c F: drivers/i2c/busses/i2c-st.c F: drivers/tty/serial/st-asc.c F: drivers/mmc/host/sdhci-st.c +F: drivers/phy/phy-stih407-usb.c ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT M: Lennert Buytenhek From 3f8da2e36c04577a39dc210255f53bdc9e4ca0e4 Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Mon, 8 Sep 2014 11:33:00 +0100 Subject: [PATCH 168/172] phy: phy-stih41x-usb: Add usb phy support for STiH41x SoCs. This driver adds support for USB (1.1 and 2.0) phy for STiH415 and STiH416 System-On-Chips from STMicroelectronics. Signed-off-by: Maxime Coquelin Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/Kconfig | 8 ++ drivers/phy/Makefile | 1 + drivers/phy/phy-stih41x-usb.c | 187 ++++++++++++++++++++++++++++++++++ 3 files changed, 196 insertions(+) create mode 100644 drivers/phy/phy-stih41x-usb.c diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index 11c66d7ae252..2a436e607f99 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -248,4 +248,12 @@ config PHY_STIH407_USB Enable this support to enable the picoPHY device used by USB2 and USB3 controllers on STMicroelectronics STiH407 SoC families. +config PHY_STIH41X_USB + tristate "STMicroelectronics USB2 PHY driver for STiH41x series" + depends on ARCH_STI + select GENERIC_PHY + help + Enable this to support the USB transceiver that is part of + STMicroelectronics STiH41x SoC series. + endmenu diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index a8d1e114a8af..c4590fce082f 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -30,3 +30,4 @@ obj-$(CONFIG_PHY_ST_SPEAR1310_MIPHY) += phy-spear1310-miphy.o obj-$(CONFIG_PHY_ST_SPEAR1340_MIPHY) += phy-spear1340-miphy.o obj-$(CONFIG_PHY_XGENE) += phy-xgene.o obj-$(CONFIG_PHY_STIH407_USB) += phy-stih407-usb.o +obj-$(CONFIG_PHY_STIH41X_USB) += phy-stih41x-usb.o diff --git a/drivers/phy/phy-stih41x-usb.c b/drivers/phy/phy-stih41x-usb.c new file mode 100644 index 000000000000..9f16cb8e01f4 --- /dev/null +++ b/drivers/phy/phy-stih41x-usb.c @@ -0,0 +1,187 @@ +/* + * Copyright (C) 2014 STMicroelectronics + * + * STMicroelectronics PHY driver for STiH41x USB. + * + * Author: Maxime Coquelin + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2, as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define SYSCFG332 0x80 +#define SYSCFG2520 0x820 + +/** + * struct stih41x_usb_cfg - SoC specific PHY register mapping + * @syscfg: Offset in syscfg registers bank + * @cfg_mask: Bits mask for PHY configuration + * @cfg: Static configuration value for PHY + * @oscok: Notify the PHY oscillator clock is ready + * Setting this bit enable the PHY + */ +struct stih41x_usb_cfg { + u32 syscfg; + u32 cfg_mask; + u32 cfg; + u32 oscok; +}; + +/** + * struct stih41x_usb_phy - Private data for the PHY + * @dev: device for this controller + * @regmap: Syscfg registers bank in which PHY is configured + * @cfg: SoC specific PHY register mapping + * @clk: Oscillator used by the PHY + */ +struct stih41x_usb_phy { + struct device *dev; + struct regmap *regmap; + const struct stih41x_usb_cfg *cfg; + struct clk *clk; +}; + +static struct stih41x_usb_cfg stih415_usb_phy_cfg = { + .syscfg = SYSCFG332, + .cfg_mask = 0x3f, + .cfg = 0x38, + .oscok = BIT(6), +}; + +static struct stih41x_usb_cfg stih416_usb_phy_cfg = { + .syscfg = SYSCFG2520, + .cfg_mask = 0x33f, + .cfg = 0x238, + .oscok = BIT(6), +}; + +static int stih41x_usb_phy_init(struct phy *phy) +{ + struct stih41x_usb_phy *phy_dev = phy_get_drvdata(phy); + + return regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg, + phy_dev->cfg->cfg_mask, phy_dev->cfg->cfg); +} + +static int stih41x_usb_phy_power_on(struct phy *phy) +{ + struct stih41x_usb_phy *phy_dev = phy_get_drvdata(phy); + int ret; + + ret = clk_prepare_enable(phy_dev->clk); + if (ret) { + dev_err(phy_dev->dev, "Failed to enable osc_phy clock\n"); + return ret; + } + + return regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg, + phy_dev->cfg->oscok, phy_dev->cfg->oscok); +} + +static int stih41x_usb_phy_power_off(struct phy *phy) +{ + struct stih41x_usb_phy *phy_dev = phy_get_drvdata(phy); + int ret; + + ret = regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg, + phy_dev->cfg->oscok, 0); + if (ret) { + dev_err(phy_dev->dev, "Failed to clear oscok bit\n"); + return ret; + } + + clk_disable_unprepare(phy_dev->clk); + + return 0; +} + +static struct phy_ops stih41x_usb_phy_ops = { + .init = stih41x_usb_phy_init, + .power_on = stih41x_usb_phy_power_on, + .power_off = stih41x_usb_phy_power_off, + .owner = THIS_MODULE, +}; + +static const struct of_device_id stih41x_usb_phy_of_match[]; + +static int stih41x_usb_phy_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + const struct of_device_id *match; + struct stih41x_usb_phy *phy_dev; + struct device *dev = &pdev->dev; + struct phy_provider *phy_provider; + struct phy *phy; + + phy_dev = devm_kzalloc(dev, sizeof(*phy_dev), GFP_KERNEL); + if (!phy_dev) + return -ENOMEM; + + match = of_match_device(stih41x_usb_phy_of_match, &pdev->dev); + if (!match) + return -ENODEV; + + phy_dev->cfg = match->data; + + phy_dev->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg"); + if (IS_ERR(phy_dev->regmap)) { + dev_err(dev, "No syscfg phandle specified\n"); + return PTR_ERR(phy_dev->regmap); + } + + phy_dev->clk = devm_clk_get(dev, "osc_phy"); + if (IS_ERR(phy_dev->clk)) { + dev_err(dev, "osc_phy clk not found\n"); + return PTR_ERR(phy_dev->clk); + } + + phy = devm_phy_create(dev, NULL, &stih41x_usb_phy_ops, NULL); + + if (IS_ERR(phy)) { + dev_err(dev, "failed to create phy\n"); + return PTR_ERR(phy); + } + + phy_dev->dev = dev; + + phy_set_drvdata(phy, phy_dev); + + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + if (IS_ERR(phy_provider)) + return PTR_ERR(phy_provider); + + return 0; +} + +static const struct of_device_id stih41x_usb_phy_of_match[] = { + { .compatible = "st,stih415-usb-phy", .data = &stih415_usb_phy_cfg }, + { .compatible = "st,stih416-usb-phy", .data = &stih416_usb_phy_cfg }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, stih41x_usb_phy_of_match); + +static struct platform_driver stih41x_usb_phy_driver = { + .probe = stih41x_usb_phy_probe, + .driver = { + .name = "stih41x-usb-phy", + .of_match_table = stih41x_usb_phy_of_match, + } +}; +module_platform_driver(stih41x_usb_phy_driver); + +MODULE_AUTHOR("Maxime Coquelin "); +MODULE_DESCRIPTION("STMicroelectronics USB PHY driver for STiH41x series"); +MODULE_LICENSE("GPL v2"); From d6140c70ed5759e1097cf8ac80f89b208cf0260f Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Mon, 8 Sep 2014 11:33:01 +0100 Subject: [PATCH 169/172] phy: phy-stih41x-usb: Add dt documentation for USB phy on STiH415/6 This patch adds dt documentation bindings for the usb phy found on STiH415/5 SoC's from STMicroelectronics, which support USB 1.1 and 2.0. Signed-off-by: Maxime Coquelin Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- .../bindings/phy/phy-stih41x-usb.txt | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/phy-stih41x-usb.txt diff --git a/Documentation/devicetree/bindings/phy/phy-stih41x-usb.txt b/Documentation/devicetree/bindings/phy/phy-stih41x-usb.txt new file mode 100644 index 000000000000..00944a05ee6b --- /dev/null +++ b/Documentation/devicetree/bindings/phy/phy-stih41x-usb.txt @@ -0,0 +1,24 @@ +STMicroelectronics STiH41x USB PHY binding +------------------------------------------ + +This file contains documentation for the usb phy found in STiH415/6 SoCs from +STMicroelectronics. + +Required properties: +- compatible : should be "st,stih416-usb-phy" or "st,stih415-usb-phy" +- st,syscfg : should be a phandle of the syscfg node +- clock-names : must contain "osc_phy" +- clocks : must contain an entry for each name in clock-names. +See: Documentation/devicetree/bindings/clock/clock-bindings.txt +- #phy-cells : must be 0 for this phy +See: Documentation/devicetree/bindings/phy/phy-bindings.txt + +Example: + +usb2_phy: usb2phy@0 { + compatible = "st,stih416-usb-phy"; + #phy-cell = <0>; + st,syscfg = <&syscfg_rear>; + clocks = <&clk_sysin>; + clock-names = "osc_phy"; +}; From 26389c78269ada2927a4ec114bbf4df45776445d Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Mon, 8 Sep 2014 11:33:02 +0100 Subject: [PATCH 170/172] MAINTAINERS: Add phy-stih41x-usb.c to ARCH/STI architecture This patch adds the new phy-sti41x-usb.c PHY driver found on STMicroelectronics stih41x consumer electronics SoC's into the STI arch section of the maintainers file. Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 93fd8afdd55e..a5cdbe94862c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1399,6 +1399,7 @@ F: drivers/i2c/busses/i2c-st.c F: drivers/tty/serial/st-asc.c F: drivers/mmc/host/sdhci-st.c F: drivers/phy/phy-stih407-usb.c +F: drivers/phy/phy-stih41x-usb.c ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT M: Lennert Buytenhek From a5ec598650257d9a7abefa6616840c872e194fdb Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 16 Sep 2014 10:32:06 +0530 Subject: [PATCH 171/172] phy: exynos-dp-video: Use syscon support to control pmu register Currently the DP_PHY_ENABLE register is mapped in the driver, and accessed to control power to the PHY. With mfd-syscon and regmap interface available at our disposal, it's wise to use that instead of using a 'reg' property for the controller and allocating a memory resource for that. To facilitate this, we have added another compatible string for Exynso5420 SoC to acquire driver data which contains different DP-PHY-CONTROL register offset. Signed-off-by: Vivek Gautam Cc: Jingoo Han Cc: Kishon Vijay Abraham I Signed-off-by: Kishon Vijay Abraham I --- .../devicetree/bindings/phy/samsung-phy.txt | 7 +- drivers/phy/phy-exynos-dp-video.c | 83 +++++++++++++------ 2 files changed, 61 insertions(+), 29 deletions(-) diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt index 7a6feea2a48b..15e0f2c7130f 100644 --- a/Documentation/devicetree/bindings/phy/samsung-phy.txt +++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt @@ -17,8 +17,11 @@ Samsung EXYNOS SoC series Display Port PHY ------------------------------------------------- Required properties: -- compatible : should be "samsung,exynos5250-dp-video-phy"; -- reg : offset and length of the Display Port PHY register set; +- compatible : should be one of the following supported values: + - "samsung,exynos5250-dp-video-phy" + - "samsung,exynos5420-dp-video-phy" +- samsung,pmu-syscon: phandle for PMU system controller interface, used to + control pmu registers for power isolation. - #phy-cells : from the generic PHY bindings, must be 0; Samsung S5P/EXYNOS SoC series USB PHY diff --git a/drivers/phy/phy-exynos-dp-video.c b/drivers/phy/phy-exynos-dp-video.c index 8b3026e2af7f..53f44a0fe0aa 100644 --- a/drivers/phy/phy-exynos-dp-video.c +++ b/drivers/phy/phy-exynos-dp-video.c @@ -13,44 +13,55 @@ #include #include #include +#include +#include #include #include #include #include +#include -/* DPTX_PHY_CONTROL register */ -#define EXYNOS_DPTX_PHY_ENABLE (1 << 0) - -struct exynos_dp_video_phy { - void __iomem *regs; +struct exynos_dp_video_phy_drvdata { + u32 phy_ctrl_offset; }; -static int __set_phy_state(struct exynos_dp_video_phy *state, unsigned int on) +struct exynos_dp_video_phy { + struct regmap *regs; + const struct exynos_dp_video_phy_drvdata *drvdata; +}; + +static void exynos_dp_video_phy_pwr_isol(struct exynos_dp_video_phy *state, + unsigned int on) { - u32 reg; + unsigned int val; - reg = readl(state->regs); - if (on) - reg |= EXYNOS_DPTX_PHY_ENABLE; - else - reg &= ~EXYNOS_DPTX_PHY_ENABLE; - writel(reg, state->regs); + if (IS_ERR(state->regs)) + return; - return 0; + val = on ? 0 : EXYNOS5_PHY_ENABLE; + + regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset, + EXYNOS5_PHY_ENABLE, val); } static int exynos_dp_video_phy_power_on(struct phy *phy) { struct exynos_dp_video_phy *state = phy_get_drvdata(phy); - return __set_phy_state(state, 1); + /* Disable power isolation on DP-PHY */ + exynos_dp_video_phy_pwr_isol(state, 0); + + return 0; } static int exynos_dp_video_phy_power_off(struct phy *phy) { struct exynos_dp_video_phy *state = phy_get_drvdata(phy); - return __set_phy_state(state, 0); + /* Enable power isolation on DP-PHY */ + exynos_dp_video_phy_pwr_isol(state, 1); + + return 0; } static struct phy_ops exynos_dp_video_phy_ops = { @@ -59,11 +70,31 @@ static struct phy_ops exynos_dp_video_phy_ops = { .owner = THIS_MODULE, }; +static const struct exynos_dp_video_phy_drvdata exynos5250_dp_video_phy = { + .phy_ctrl_offset = EXYNOS5_DPTX_PHY_CONTROL, +}; + +static const struct exynos_dp_video_phy_drvdata exynos5420_dp_video_phy = { + .phy_ctrl_offset = EXYNOS5420_DPTX_PHY_CONTROL, +}; + +static const struct of_device_id exynos_dp_video_phy_of_match[] = { + { + .compatible = "samsung,exynos5250-dp-video-phy", + .data = &exynos5250_dp_video_phy, + }, { + .compatible = "samsung,exynos5420-dp-video-phy", + .data = &exynos5420_dp_video_phy, + }, + { }, +}; +MODULE_DEVICE_TABLE(of, exynos_dp_video_phy_of_match); + static int exynos_dp_video_phy_probe(struct platform_device *pdev) { struct exynos_dp_video_phy *state; struct device *dev = &pdev->dev; - struct resource *res; + const struct of_device_id *match; struct phy_provider *phy_provider; struct phy *phy; @@ -71,11 +102,15 @@ static int exynos_dp_video_phy_probe(struct platform_device *pdev) if (!state) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - state->regs = devm_ioremap_resource(dev, res); - if (IS_ERR(state->regs)) + state->regs = syscon_regmap_lookup_by_phandle(dev->of_node, + "samsung,pmu-syscon"); + if (IS_ERR(state->regs)) { + dev_err(dev, "Failed to lookup PMU regmap\n"); return PTR_ERR(state->regs); + } + + match = of_match_node(exynos_dp_video_phy_of_match, dev->of_node); + state->drvdata = match->data; phy = devm_phy_create(dev, NULL, &exynos_dp_video_phy_ops, NULL); if (IS_ERR(phy)) { @@ -89,12 +124,6 @@ static int exynos_dp_video_phy_probe(struct platform_device *pdev) return PTR_ERR_OR_ZERO(phy_provider); } -static const struct of_device_id exynos_dp_video_phy_of_match[] = { - { .compatible = "samsung,exynos5250-dp-video-phy" }, - { }, -}; -MODULE_DEVICE_TABLE(of, exynos_dp_video_phy_of_match); - static struct platform_driver exynos_dp_video_phy_driver = { .probe = exynos_dp_video_phy_probe, .driver = { From 4f0eb5d7efe375859b15c97f453113a242bf057b Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Fri, 15 Aug 2014 13:40:14 +0100 Subject: [PATCH 172/172] phy: remove .owner field for drivers using module_platform_driver This patch removes the superflous .owner field for drivers which use the module_platform_driver or platform_driver_register api, as this is overriden in __platform_driver_register. Signed-off-by: Peter Griffin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-bcm-kona-usb2.c | 1 - drivers/phy/phy-berlin-sata.c | 1 - drivers/phy/phy-exynos-dp-video.c | 1 - drivers/phy/phy-exynos-mipi-video.c | 1 - drivers/phy/phy-exynos5-usbdrd.c | 1 - drivers/phy/phy-exynos5250-sata.c | 1 - drivers/phy/phy-hix5hd2-sata.c | 1 - drivers/phy/phy-miphy365x.c | 1 - drivers/phy/phy-mvebu-sata.c | 1 - drivers/phy/phy-omap-control.c | 1 - drivers/phy/phy-omap-usb2.c | 1 - drivers/phy/phy-qcom-apq8064-sata.c | 1 - drivers/phy/phy-qcom-ipq806x-sata.c | 1 - drivers/phy/phy-samsung-usb2.c | 1 - drivers/phy/phy-sun4i-usb.c | 1 - drivers/phy/phy-ti-pipe3.c | 1 - drivers/phy/phy-twl4030-usb.c | 1 - drivers/phy/phy-xgene.c | 1 - 18 files changed, 18 deletions(-) diff --git a/drivers/phy/phy-bcm-kona-usb2.c b/drivers/phy/phy-bcm-kona-usb2.c index 894fe74c1e44..c1e0ca335c0e 100644 --- a/drivers/phy/phy-bcm-kona-usb2.c +++ b/drivers/phy/phy-bcm-kona-usb2.c @@ -143,7 +143,6 @@ static struct platform_driver bcm_kona_usb2_driver = { .probe = bcm_kona_usb2_probe, .driver = { .name = "bcm-kona-usb2", - .owner = THIS_MODULE, .of_match_table = bcm_kona_usb2_dt_ids, }, }; diff --git a/drivers/phy/phy-berlin-sata.c b/drivers/phy/phy-berlin-sata.c index 5c3a0424aeb4..69ced52d72aa 100644 --- a/drivers/phy/phy-berlin-sata.c +++ b/drivers/phy/phy-berlin-sata.c @@ -273,7 +273,6 @@ static struct platform_driver phy_berlin_sata_driver = { .probe = phy_berlin_sata_probe, .driver = { .name = "phy-berlin-sata", - .owner = THIS_MODULE, .of_match_table = phy_berlin_sata_of_match, }, }; diff --git a/drivers/phy/phy-exynos-dp-video.c b/drivers/phy/phy-exynos-dp-video.c index 53f44a0fe0aa..84f49e5a3f24 100644 --- a/drivers/phy/phy-exynos-dp-video.c +++ b/drivers/phy/phy-exynos-dp-video.c @@ -128,7 +128,6 @@ static struct platform_driver exynos_dp_video_phy_driver = { .probe = exynos_dp_video_phy_probe, .driver = { .name = "exynos-dp-video-phy", - .owner = THIS_MODULE, .of_match_table = exynos_dp_video_phy_of_match, } }; diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c index b55a92e12496..6a9bef138617 100644 --- a/drivers/phy/phy-exynos-mipi-video.c +++ b/drivers/phy/phy-exynos-mipi-video.c @@ -165,7 +165,6 @@ static struct platform_driver exynos_mipi_video_phy_driver = { .driver = { .of_match_table = exynos_mipi_video_phy_of_match, .name = "exynos-mipi-video-phy", - .owner = THIS_MODULE, } }; module_platform_driver(exynos_mipi_video_phy_driver); diff --git a/drivers/phy/phy-exynos5-usbdrd.c b/drivers/phy/phy-exynos5-usbdrd.c index 392101c8d6b0..f756aca871db 100644 --- a/drivers/phy/phy-exynos5-usbdrd.c +++ b/drivers/phy/phy-exynos5-usbdrd.c @@ -667,7 +667,6 @@ static struct platform_driver exynos5_usb3drd_phy = { .driver = { .of_match_table = exynos5_usbdrd_phy_of_match, .name = "exynos5_usb3drd_phy", - .owner = THIS_MODULE, } }; diff --git a/drivers/phy/phy-exynos5250-sata.c b/drivers/phy/phy-exynos5250-sata.c index 19a679aca4ac..54cf4ae60d29 100644 --- a/drivers/phy/phy-exynos5250-sata.c +++ b/drivers/phy/phy-exynos5250-sata.c @@ -240,7 +240,6 @@ static struct platform_driver exynos_sata_phy_driver = { .driver = { .of_match_table = exynos_sata_phy_of_match, .name = "samsung,sata-phy", - .owner = THIS_MODULE, } }; module_platform_driver(exynos_sata_phy_driver); diff --git a/drivers/phy/phy-hix5hd2-sata.c b/drivers/phy/phy-hix5hd2-sata.c index 6a08fa5f81eb..d5d978085c6d 100644 --- a/drivers/phy/phy-hix5hd2-sata.c +++ b/drivers/phy/phy-hix5hd2-sata.c @@ -180,7 +180,6 @@ static struct platform_driver hix5hd2_sata_phy_driver = { .probe = hix5hd2_sata_phy_probe, .driver = { .name = "hix5hd2-sata-phy", - .owner = THIS_MODULE, .of_match_table = hix5hd2_sata_phy_of_match, } }; diff --git a/drivers/phy/phy-miphy365x.c b/drivers/phy/phy-miphy365x.c index e0fb7a1e5a5a..801afaf2d449 100644 --- a/drivers/phy/phy-miphy365x.c +++ b/drivers/phy/phy-miphy365x.c @@ -626,7 +626,6 @@ static struct platform_driver miphy365x_driver = { .probe = miphy365x_probe, .driver = { .name = "miphy365x-phy", - .owner = THIS_MODULE, .of_match_table = miphy365x_of_match, } }; diff --git a/drivers/phy/phy-mvebu-sata.c b/drivers/phy/phy-mvebu-sata.c index 10bb8e5aa940..d395558cb12e 100644 --- a/drivers/phy/phy-mvebu-sata.c +++ b/drivers/phy/phy-mvebu-sata.c @@ -128,7 +128,6 @@ static struct platform_driver phy_mvebu_sata_driver = { .probe = phy_mvebu_sata_probe, .driver = { .name = "phy-mvebu-sata", - .owner = THIS_MODULE, .of_match_table = phy_mvebu_sata_of_match, } }; diff --git a/drivers/phy/phy-omap-control.c b/drivers/phy/phy-omap-control.c index cb2f4d1c14aa..c96e8183a8ff 100644 --- a/drivers/phy/phy-omap-control.c +++ b/drivers/phy/phy-omap-control.c @@ -345,7 +345,6 @@ static struct platform_driver omap_control_phy_driver = { .probe = omap_control_phy_probe, .driver = { .name = "omap-control-phy", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(omap_control_phy_id_table), }, }; diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c index 51c6f92220c5..8c842980834a 100644 --- a/drivers/phy/phy-omap-usb2.c +++ b/drivers/phy/phy-omap-usb2.c @@ -378,7 +378,6 @@ static struct platform_driver omap_usb2_driver = { .remove = omap_usb2_remove, .driver = { .name = "omap-usb2", - .owner = THIS_MODULE, .pm = DEV_PM_OPS, .of_match_table = of_match_ptr(omap_usb2_id_table), }, diff --git a/drivers/phy/phy-qcom-apq8064-sata.c b/drivers/phy/phy-qcom-apq8064-sata.c index b3ef7d805765..7b3ddfb65898 100644 --- a/drivers/phy/phy-qcom-apq8064-sata.c +++ b/drivers/phy/phy-qcom-apq8064-sata.c @@ -279,7 +279,6 @@ static struct platform_driver qcom_apq8064_sata_phy_driver = { .remove = qcom_apq8064_sata_phy_remove, .driver = { .name = "qcom-apq8064-sata-phy", - .owner = THIS_MODULE, .of_match_table = qcom_apq8064_sata_phy_of_match, } }; diff --git a/drivers/phy/phy-qcom-ipq806x-sata.c b/drivers/phy/phy-qcom-ipq806x-sata.c index 909b5a87fc6a..759b0bf5b6b3 100644 --- a/drivers/phy/phy-qcom-ipq806x-sata.c +++ b/drivers/phy/phy-qcom-ipq806x-sata.c @@ -201,7 +201,6 @@ static struct platform_driver qcom_ipq806x_sata_phy_driver = { .remove = qcom_ipq806x_sata_phy_remove, .driver = { .name = "qcom-ipq806x-sata-phy", - .owner = THIS_MODULE, .of_match_table = qcom_ipq806x_sata_phy_of_match, } }; diff --git a/drivers/phy/phy-samsung-usb2.c b/drivers/phy/phy-samsung-usb2.c index 3732ca25e09f..908949dfb4db 100644 --- a/drivers/phy/phy-samsung-usb2.c +++ b/drivers/phy/phy-samsung-usb2.c @@ -231,7 +231,6 @@ static struct platform_driver samsung_usb2_phy_driver = { .driver = { .of_match_table = samsung_usb2_phy_of_match, .name = "samsung-usb2-phy", - .owner = THIS_MODULE, } }; diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c index 61ebea49709b..0baf5efc8a40 100644 --- a/drivers/phy/phy-sun4i-usb.c +++ b/drivers/phy/phy-sun4i-usb.c @@ -325,7 +325,6 @@ static struct platform_driver sun4i_usb_phy_driver = { .driver = { .of_match_table = sun4i_usb_phy_of_match, .name = "sun4i-usb-phy", - .owner = THIS_MODULE, } }; module_platform_driver(sun4i_usb_phy_driver); diff --git a/drivers/phy/phy-ti-pipe3.c b/drivers/phy/phy-ti-pipe3.c index 9280ef8a05f5..ab1e22d9a1e8 100644 --- a/drivers/phy/phy-ti-pipe3.c +++ b/drivers/phy/phy-ti-pipe3.c @@ -518,7 +518,6 @@ static struct platform_driver ti_pipe3_driver = { .remove = ti_pipe3_remove, .driver = { .name = "ti-pipe3", - .owner = THIS_MODULE, .pm = DEV_PM_OPS, .of_match_table = of_match_ptr(ti_pipe3_id_table), }, diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index 1e0e2d1f7941..7b04befd5271 100644 --- a/drivers/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -785,7 +785,6 @@ static struct platform_driver twl4030_usb_driver = { .driver = { .name = "twl4030_usb", .pm = &twl4030_usb_pm_ops, - .owner = THIS_MODULE, .of_match_table = of_match_ptr(twl4030_usb_id_table), }, }; diff --git a/drivers/phy/phy-xgene.c b/drivers/phy/phy-xgene.c index db809b97219e..f8a51b16ade8 100644 --- a/drivers/phy/phy-xgene.c +++ b/drivers/phy/phy-xgene.c @@ -1738,7 +1738,6 @@ static struct platform_driver xgene_phy_driver = { .probe = xgene_phy_probe, .driver = { .name = "xgene-phy", - .owner = THIS_MODULE, .of_match_table = xgene_phy_of_match, }, };