Commit Graph

649799 Commits

Author SHA1 Message Date
Marcelo Ricardo Leitner
2dcab59848 sctp: avoid BUG_ON on sctp_wait_for_sndbuf
Alexander Popov reported that an application may trigger a BUG_ON in
sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is
waiting on it to queue more data and meanwhile another thread peels off
the association being used by the first thread.

This patch replaces the BUG_ON call with a proper error handling. It
will return -EPIPE to the original sendmsg call, similarly to what would
have been done if the association wasn't found in the first place.

Acked-by: Alexander Popov <alex.popov@linux.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 12:54:59 -05:00
Benjamin Poirier
bd4ce941c8 mlx4: Invoke softirqs after napi_reschedule
mlx4 may schedule napi from a workqueue. Afterwards, softirqs are not run
in a deterministic time frame and the following message may be logged:
NOHZ: local_softirq_pending 08

The problem is the same as what was described in commit ec13ee8014
("virtio_net: invoke softirqs after __napi_schedule") and this patch
applies the same fix to mlx4.

Fixes: 07841f9d94 ("net/mlx4_en: Schedule napi when RX buffers allocation fails")
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 12:50:43 -05:00
Eric Dumazet
69629464e0 udp: properly cope with csum errors
Dmitry reported that UDP sockets being destroyed would trigger the
WARN_ON(atomic_read(&sk->sk_rmem_alloc)); in inet_sock_destruct()

It turns out we do not properly destroy skb(s) that have wrong UDP
checksum.

Thanks again to syzkaller team.

Fixes : 7c13f97ffd ("udp: do fwd memory scheduling on dequeue")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 11:19:00 -05:00
David S. Miller
6a413e269b Merge branch 'net-Fix-on-stack-USB-buffers'
Ben Hutchings says:

====================
net: Fix on-stack USB buffers

Allocating USB buffers on the stack is not portable, and no longer
works on x86_64 (with VMAP_STACK enabled as per default).  This
series fixes all the instances I could find where USB networking
drivers do that.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 10:07:03 -05:00
Ben Hutchings
2d6a0e9de0 catc: Use heap buffer for memory size test
Allocating USB buffers on the stack is not portable, and no longer
works on x86_64 (with VMAP_STACK enabled as per default).

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 10:07:02 -05:00
Ben Hutchings
d41149145f catc: Combine failure cleanup code in catc_probe()
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 10:07:02 -05:00
Ben Hutchings
7926aff5c5 rtl8150: Use heap buffers for all register access
Allocating USB buffers on the stack is not portable, and no longer
works on x86_64 (with VMAP_STACK enabled as per default).

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 10:07:02 -05:00
Ben Hutchings
5593523f96 pegasus: Use heap buffers for all register access
Allocating USB buffers on the stack is not portable, and no longer
works on x86_64 (with VMAP_STACK enabled as per default).

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
References: https://bugs.debian.org/852556
Reported-by: Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>
Tested-by: Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 10:07:01 -05:00
Takashi Iwai
f3d83317a6 Revert "ALSA: line6: Only determine control port properties if needed"
This reverts commit f6a0dd107a.

The commit caused a regression on LINE6 Transport that has no control
caps.  Although reverting the commit may result back in a spurious
error message for some device again, it's the simplest regression fix,
hence it's taken as is at first.  The further code fix will follow
later.

Fixes: f6a0dd107a ("ALSA: line6: Only determine control port properties if needed")
Reported-by: Igor Zinovev <zinigor@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-07 09:37:11 +01:00
David S. Miller
432d4f8ab0 Merge branch 'read-vnet_hdr_sz-once'
Willem de Bruijn says:

====================
read vnet_hdr_sz once

Tuntap devices allow concurrent use and update of field vnet_hdr_sz.
Read the field once to avoid TOCTOU.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06 22:41:27 -05:00
Willem de Bruijn
837585a537 macvtap: read vnet_hdr_size once
When IFF_VNET_HDR is enabled, a virtio_net header must precede data.
Data length is verified to be greater than or equal to expected header
length tun->vnet_hdr_sz before copying.

Macvtap functions read the value once, but unless READ_ONCE is used,
the compiler may ignore this and read multiple times. Enforce a single
read and locally cached value to avoid updates between test and use.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Suggested-by: Eric Dumazet <edumazet@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06 22:41:27 -05:00
Willem de Bruijn
e1edab87fa tun: read vnet_hdr_sz once
When IFF_VNET_HDR is enabled, a virtio_net header must precede data.
Data length is verified to be greater than or equal to expected header
length tun->vnet_hdr_sz before copying.

Read this value once and cache locally, as it can be updated between
the test and use (TOCTOU).

Signed-off-by: Willem de Bruijn <willemb@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
CC: Eric Dumazet <edumazet@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06 22:41:27 -05:00
Eric Dumazet
ccf7abb93a tcp: avoid infinite loop in tcp_splice_read()
Splicing from TCP socket is vulnerable when a packet with URG flag is
received and stored into receive queue.

__tcp_splice_read() returns 0, and sk_wait_data() immediately
returns since there is the problematic skb in queue.

This is a nice way to burn cpu (aka infinite loop) and trigger
soft lockups.

Again, this gem was found by syzkaller tool.

Fixes: 9c55e01c0c ("[TCP]: Splice receive support.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov  <dvyukov@google.com>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06 22:38:55 -05:00
Linus Torvalds
8b1b41ee74 Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
 "None of these are showstoppers for 4.10 and could wait for 4.11 merge
  window, but they are low enough risk for this late in the cycle and
  the fixes have waiting users . They have received a build success
  notification from the 0day robot, pass the latest ndctl unit tests,
  and appeared in next:

   - Fix a crash that can result when SIGINT is sent to a process that
     is awaiting completion of an address range scrub command. We were
     not properly cleaning up the workqueue after
     wait_event_interruptible().

   - Fix a memory hotplug failure condition that results from not
     reserving enough space out of persistent memory for the memmap. By
     default we align to 2M allocations that the memory hotplug code
     assumes, but if the administrator specifies a non-default
     4K-alignment then we can fail to correctly size the reservation.

   - A one line fix to improve the predictability of libnvdimm block
     device names. A common operation is to reconfigure /dev/pmem0 into
     a different mode. For example, a reconfiguration might set a new
     mode that reserves some of the capacity for a struct page memmap
     array. It surprises users if the device name changes to
     "/dev/pmem0.1" after the mode change and then back to /dev/pmem0
     after a reboot.

   - Add 'const' to some function pointer tables"

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  libnvdimm, pfn: fix memmap reservation size versus 4K alignment
  acpi, nfit: fix acpi_nfit_flush_probe() crash
  libnvdimm, namespace: do not delete namespace-id 0
  nvdimm: constify device_type structures
2017-02-06 19:36:04 -08:00
Linus Torvalds
f7d6040aa4 Power management fixes for v4.10-rc8
- Add an intel_pstate driver quirk to work around a firmware setting
    that leads to frequency scaling issues on desktop Intel Kaby Lake
    processors in some configurations if the hardware-managed P-states
    (HWP) feature is in use (Srinivas Pandruvada).
 
  - Fix up the recently added brcmstb-avs cpufreq driver: fix a bug
    related to system suspend and change the sysfs interface to match
    the user space expectations (Markus Mayer).
 
  - Modify the runtime PM framework to avoid false-positive warnings
    from the might_sleep_if() assertions in it (Rafael Wysocki).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJYmIOoAAoJEILEb/54YlRx2XgP/AjkxDOBep8mnY3xHNMvx887
 BjWWGkuO3qZiX/xFhkhlBuxx8zLfg3ie7NJiSpn1Lj0192M9ggwn4RrM61V1SBX6
 QTOeP68uueIIA/SCt2dw9DdEpepzyvwSJpUTqRmZubZAAYjcVHN+FLgNa5QzUdMb
 X73zORAXsOu4SAguS4MP3yvPvFfdsOwSexllfsK9IAd+eb5RSZYnNyHuwW+S8EK5
 zVCE+cwJOYU4SFh0speGpvUh7wXtWdYM3CV6mzrkiQqfvS6q29xillrxKWaEIk7Z
 5Y6sReFl6i/zIuFQnx0nKPNM5DUhiOY80ha5uaZzde+vRRR7EM7n6LaIQVp672A7
 mq6d0YxsJD8Z9Gx9r66oID/pfEkviRvRc4ejm0Xb187QN9jZvBhY85WD22X5p3KR
 B0B/mhN1zN8ruaLvitqKwXtTntq4ahLtjfxtsyYoH56kh8J6C5KNlJ985/q2hhLD
 8W1ZAaXPy+vyfODsnxdzfnYvkOgeY/XIg9NQ++QGdhXNwDBb1QZP34zdNsIF/YXR
 8A+usM8BAq4r2dDROFfxtCkIVH6JsMkqWVbrUPkM9hdIL2jF3IpRS9bXKBvDICMc
 ZsbDm4ihz+XtjVG4GxmrB5SZ2C3qPYwbmLBiu1CwfY7L6lN8azF0RmRJ0s2fpvAG
 d4nxEZa5ysPKEZfU6PyE
 =2NdR
 -----END PGP SIGNATURE-----

Merge tag 'pm-4.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These add a quirk to intel_pstate to work around a firmware setting
  that leads to frequency scaling issues (discovered recently) on some
  Intel Kaby Lake processors, fix up the recently added brcmstb-avs
  cpufreq driver and avoid false-positive warnings from the runtime PM
  framework triggered by recent changes in i915.

  Specifics:

   - Add an intel_pstate driver quirk to work around a firmware setting
     that leads to frequency scaling issues on desktop Intel Kaby Lake
     processors in some configurations if the hardware-managed P-states
     (HWP) feature is in use (Srinivas Pandruvada)

   - Fix up the recently added brcmstb-avs cpufreq driver: fix a bug
     related to system suspend and change the sysfs interface to match
     the user space expectations (Markus Mayer)

   - Modify the runtime PM framework to avoid false-positive warnings
     from the might_sleep_if() assertions in it (Rafael Wysocki)"

* tag 'pm-4.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / runtime: Avoid false-positive warnings from might_sleep_if()
  cpufreq: intel_pstate: Disable energy efficiency optimization
  cpufreq: brcmstb-avs-cpufreq: properly retrieve P-state upon suspend
  cpufreq: brcmstb-avs-cpufreq: extend sysfs entry brcm_avs_pmap
2017-02-06 15:11:04 -08:00
Linus Torvalds
50dcb6cdb7 - A fix for a race in .request_fn request-based DM request handling vs
DM device destruction
 
 - An RCU fix for dm-crypt's kernel keyring support that was included in
   4.10-rc1
 
 - A -Wbool-operation warning fix for DM multipath
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJYlKLnAAoJEMUj8QotnQNaUOcH/3OgBjsRuFpNmrW3bzzcpLUQ
 XH6R2YAc1/14BU6rUYY7vLA905n7Jw3VyyJGgl2cJUqaDqA/Qj6uBmwfOve019Fl
 xTzi8rMAas05zqs9b5SrRAtSt2z6eZnbpm8df+QjrFQZjsDzsl2+PLxR+emp9YIQ
 wXLAU4Re35v/jPUccoNB0Be0LARIh0dSPQYWCYPomYqFHBoioHinGBOJpeq8HXFp
 U+JRXPcjrFxs4zjKq8aRE1XhN7lqLt7uZ4gi43sRCgieWXApoOfmo634IINyZtCf
 WIjS92qbFeyZfMk65q+GzfUYM9ZdAvzwXMlHnECYSd+jfbz89DhKv7YOuyCf1CU=
 =RSQc
 -----END PGP SIGNATURE-----

Merge tag 'dm-4.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - a fix for a race in .request_fn request-based DM request handling vs
   DM device destruction

 - an RCU fix for dm-crypt's kernel keyring support that was included in
   4.10-rc1

 - a -Wbool-operation warning fix for DM multipath

* tag 'dm-4.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm crypt: replace RCU read-side section with rwsem
  dm rq: cope with DM device destruction while in dm_old_request_fn()
  dm mpath: cleanup -Wbool-operation warning in choose_pgpath()
2017-02-06 14:42:34 -08:00
Linus Torvalds
72df5eba70 media fixes for v4.10-rc8
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJYmJDxAAoJEAhfPr2O5OEVFtkQAJHHkcc4H139Fdp0ThGLLLf/
 1VWAwQqWb/WmXMqIrE2fIQdEty8za8GvX6gQMsgeDS06GTlxtprnBeH/ZKlwrNR3
 akq/mwQPtJhOUe5uuAmgcGUOrIUIRfO0kmY6hZY+92MyxHbUbmSvpV6YHe81eWV1
 Emkwc4cMrir3RaCAsn2FgRnFRRpB58oi9TCe89LtLI4zzCMuTzEvEfG7O9u5WCcO
 SrhMv05M5XWIvEywoZsKcUW+vBZxZ6QvbG970MY5czW2WRs5GIoOnwskNYpo/bxy
 ttKmcgDXD63Wa2JPuEImLm8imyHhquJMKXCFrCRDvSWVw5p+xKDx5lX56cMhJYmr
 ZHG32Z7dsG2bfVLY5+L/B+4QhnBYqEehhgh/8oDhrR8POw+71L40aWCq5gC9cHp4
 fjNBRxII11i6AEqyMA2Dv+aSyeW3LSYBxV11h5F/Zef5fpa+WMgtHLjKKxRMOnzF
 lt81OC5yg3XWBRb4s/4xXghOOmMPFMPCo8LUbo3wB5wGNBtguBBXssZ2HIolrSCA
 /NAD01Eb29dRhtRXEqQYAhEuSiuob6ETdn+FktbtUeZl5ZUg7JfZ+A5MqTmH1l1u
 Ezl8I42BnkMuSc2gdkWh1eBJfrzNEytiW7EOZO4TMfi00PzlshwusQkXtRTUC5aC
 DG5W41QC2PolZnV8XcXs
 =nEM8
 -----END PGP SIGNATURE-----

Merge tag 'media/v4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "A few documentation fixes at CEC (with got promoted from staging for
  4.10), and one fix on its core."

* tag 'media/v4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] cec: fix wrong last_la determination
  [media] cec-intro.rst: mention the v4l-utils package and CEC utilities
  [media] cec rst: remove "This API is not yet finalized" notice
2017-02-06 14:37:55 -08:00
Linus Torvalds
396bf4cd83 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:

 - use-after-free in algif_aead

 - modular aesni regression when pcbc is modular but absent

 - bug causing IO page faults in ccp

 - double list add in ccp

 - NULL pointer dereference in qat (two patches)

 - panic in chcr

 - NULL pointer dereference in chcr

 - out-of-bound access in chcr

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: chcr - Fix key length for RFC4106
  crypto: algif_aead - Fix kernel panic on list_del
  crypto: aesni - Fix failure when pcbc module is absent
  crypto: ccp - Fix double add when creating new DMA command
  crypto: ccp - Fix DMA operations when IOMMU is enabled
  crypto: chcr - Check device is allocated before use
  crypto: chcr - Fix panic on dma_unmap_sg
  crypto: qat - zero esram only for DH85x devices
  crypto: qat - fix bar discovery for c62x
2017-02-06 14:16:23 -08:00
Arnd Bergmann
b3f2d07f46 hns: avoid stack overflow with CONFIG_KASAN
The use of ACCESS_ONCE() looks like a micro-optimization to force gcc to use
an indexed load for the register address, but it has an absolutely detrimental
effect on builds with gcc-5 and CONFIG_KASAN=y, leading to a very likely
kernel stack overflow aside from very complex object code:

hisilicon/hns/hns_dsaf_gmac.c: In function 'hns_gmac_update_stats':
hisilicon/hns/hns_dsaf_gmac.c:419:1: error: the frame size of 2912 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
hisilicon/hns/hns_dsaf_ppe.c: In function 'hns_ppe_reset_common':
hisilicon/hns/hns_dsaf_ppe.c:390:1: error: the frame size of 1184 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
hisilicon/hns/hns_dsaf_ppe.c: In function 'hns_ppe_get_regs':
hisilicon/hns/hns_dsaf_ppe.c:621:1: error: the frame size of 3632 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
hisilicon/hns/hns_dsaf_rcb.c: In function 'hns_rcb_get_common_regs':
hisilicon/hns/hns_dsaf_rcb.c:970:1: error: the frame size of 2784 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
hisilicon/hns/hns_dsaf_gmac.c: In function 'hns_gmac_get_regs':
hisilicon/hns/hns_dsaf_gmac.c:641:1: error: the frame size of 5728 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
hisilicon/hns/hns_dsaf_rcb.c: In function 'hns_rcb_get_ring_regs':
hisilicon/hns/hns_dsaf_rcb.c:1021:1: error: the frame size of 2208 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
hisilicon/hns/hns_dsaf_main.c: In function 'hns_dsaf_comm_init':
hisilicon/hns/hns_dsaf_main.c:1209:1: error: the frame size of 1904 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
hisilicon/hns/hns_dsaf_xgmac.c: In function 'hns_xgmac_get_regs':
hisilicon/hns/hns_dsaf_xgmac.c:748:1: error: the frame size of 4704 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
hisilicon/hns/hns_dsaf_main.c: In function 'hns_dsaf_update_stats':
hisilicon/hns/hns_dsaf_main.c:2420:1: error: the frame size of 1088 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
hisilicon/hns/hns_dsaf_main.c: In function 'hns_dsaf_get_regs':
hisilicon/hns/hns_dsaf_main.c:2753:1: error: the frame size of 10768 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

This does not seem to happen any more with gcc-7, but removing the ACCESS_ONCE
seems safe anyway and it avoids a serious issue for some people. I have verified
that with gcc-5.3.1, the object code we get is better in the new version
both with and without CONFIG_KASAN, as we no longer allocate a 1344 byte
stack frame for hns_dsaf_get_regs() but otherwise have practically identical
object code.

With gcc-7.0.0, removing ACCESS_ONCE has no effect, the object code is already
good either way.

This patch is probably not urgent to get into 4.11 as only KASAN=y builds
with certain compilers are affected, but I still think it makes sense to
backport into older kernels.

Cc: stable@vger.kernel.org
Fixes: 511e6bc ("net: add Hisilicon Network Subsystem DSAF support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06 12:02:32 -05:00
Linus Lüssing
a088d1d73a ipv6: Fix IPv6 packet loss in scenarios involving roaming + snooping switches
When for instance a mobile Linux device roams from one access point to
another with both APs sharing the same broadcast domain and a
multicast snooping switch in between:

1)    (c) <~~~> (AP1) <--[SSW]--> (AP2)

2)              (AP1) <--[SSW]--> (AP2) <~~~> (c)

Then currently IPv6 multicast packets will get lost for (c) until an
MLD Querier sends its next query message. The packet loss occurs
because upon roaming the Linux host so far stayed silent regarding
MLD and the snooping switch will therefore be unaware of the
multicast topology change for a while.

This patch fixes this by always resending MLD reports when an interface
change happens, for instance from NO-CARRIER to CARRIER state.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06 11:43:01 -05:00
Arnd Bergmann
5aff1d245e ARM: defconfigs: make NF_CT_PROTO_SCTP and NF_CT_PROTO_UDPLITE built-in
The symbols can no longer be used as loadable modules, leading to a harmless Kconfig
warning:

arch/arm/configs/imote2_defconfig:60:warning: symbol value 'm' invalid for NF_CT_PROTO_UDPLITE
arch/arm/configs/imote2_defconfig:59:warning: symbol value 'm' invalid for NF_CT_PROTO_SCTP
arch/arm/configs/ezx_defconfig:68:warning: symbol value 'm' invalid for NF_CT_PROTO_UDPLITE
arch/arm/configs/ezx_defconfig:67:warning: symbol value 'm' invalid for NF_CT_PROTO_SCTP

Let's make them built-in.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-02-06 17:37:42 +01:00
Christoph Hellwig
eeeefd4184 block: don't try Write Same from __blkdev_issue_zeroout
Write Same can return an error asynchronously if it turns out the
underlying SCSI device does not support Write Same, which makes a
proper fallback to other methods in __blkdev_issue_zeroout impossible.
Thus only issue a Write Same from blkdev_issue_zeroout an don't try it
at all from __blkdev_issue_zeroout as a non-invasive workaround.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout")
Tested-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-02-06 09:34:46 -07:00
Arnd Bergmann
a47b3fca62 mvebu fixes for 4.10 (part 1)
More consistent naming for some orion5x based boards helping the
 switch to device tree for debian users.
 -----BEGIN PGP SIGNATURE-----
 
 iIEEABECAEEWIQQYqXDMF3cvSLY+g9cLBhiOFHI71QUCWJNvuSMcZ3JlZ29yeS5j
 bGVtZW50QGZyZWUtZWxlY3Ryb25zLmNvbQAKCRALBhiOFHI71bUAAJ9F2ae0LEvo
 4Fu44238w1Kr6hC6LQCeO16PL46cLMTZj2E/hOy/9eytbM0=
 =IcBG
 -----END PGP SIGNATURE-----

Merge tag 'mvebu-fixes-4.10-1' of git://git.infradead.org/linux-mvebu into fixes

Pull "mvebu fixes for 4.10 (part 1)" from Gregory CLEMENT:

More consistent naming for some orion5x based boards helping the
switch to device tree for debian users.

* tag 'mvebu-fixes-4.10-1' of git://git.infradead.org/linux-mvebu:
  ARM: orion5x: fix Makefile for linkstation-lschl.dtb
  ARM: dts: orion5x-lschl: More consistent naming on linkstation series
  ARM: dts: orion5x-lschl: Fix model name
2017-02-06 17:33:51 +01:00
Dinh Nguyen
08b3b33f3e MAINTAINERS: socfpga: update email for Dinh Nguyen
My opensource.altera.com email will be going away soon.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-02-06 17:33:01 +01:00
David S. Miller
62f01db9cf wireless-drivers fixes for 4.10
Only one important fix for rtlwifi which fixes a regression introduced
 in 4.9 and which caused problems for many users.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJYmJChAAoJEG4XJFUm622b+GIIAJCOUqAC67Mk1/jTgyVlUHZc
 4uLocdhupiozZjBTh7z1lClY3EdT38AAkstcPRXIIQLcVMjkU4B9e5nLUQFv3R/u
 Bt7waNd5KixG+fX0iDPiuLj21SeMNYGtBNQ1PYSiiuuYaWXyAwplK4FW00KkUlqA
 i0V2DHt1BZD3psfhPcKAmx/8kAjCjg2jX1HxMoaLHpC4HUkDdNSd87ZjrEJWN37u
 eLihSdtw5+d8HMqHTmbgGXhiQKNRN9GRv7NMX+iUSSmu4oPwJtE5VLMU24VDeDwW
 3rgprba5p/ddz20iBtWAVRytOHdt5GtrnWCInI2jZk3QpjmM4hqEqoOhc9E47Dc=
 =0wO8
 -----END PGP SIGNATURE-----

Merge tag 'wireless-drivers-for-davem-2017-02-06' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 4.10

Only one important fix for rtlwifi which fixes a regression introduced
in 4.9 and which caused problems for many users.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06 11:20:48 -05:00
David S. Miller
89389b4d55 A few simple fixes:
* fix FILS AEAD cipher usage to use the correct AAD vectors
    and to use synchronous algorithms
  * fix using mesh HT operation data from userspace
  * fix adding mesh vendor elements to beacons & plink frames
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCgAGBQJYmCBmAAoJEGt7eEactAAd5BAP/2oPaRDgJv0ByqoFPh0pzKqx
 RwoXOW9xqtp+wWFA8hPTe2niVtNpexwo4ZQ2I2hkjeomFfbw0gwklBFQQ0Vbq5b9
 6UtClEBHp/xW5vdvooBwMAcUBJQMM25wIFt2jwz9xRIUxjiOisZBIp7avLTtoQKC
 +hsNJOWOmyeJYLXdeJVaJM953dANCKdzL590JX3f6tbr8LPpszrg8TmVLJWklTYQ
 Cm2latv0GezxL/d+KcSWbNoX+X+d5D0gVZXHmp5UFWX6yT0FMkNmSURmkHEfuiuD
 z11befXgvXAr3l7cxE/TEtrNCh57pwDoPtJmBqJ9G68aURK8iVb4XB/ZEB8hEvHi
 EchMXompYU/xPiGVbkb/wOFXlBY+xc85uoEwkSL1CZs4eX6r6JawrHG7RUcTKFsv
 V2zAQU0pDO29OcprHbjD+rnjrG2qtZ/pDKO7X5+eIgHvEzwaqZY3yd1YmJK52d67
 J4slSS/jislTg+rbhFi8NrCONuRlp5rixjmHINUWCsilojrKeDh9thMYrVmXWZjT
 qjoOojMmiGH7ekhvSVDciRxoLgP9aIShuIvbub9uOPQAPXsVf3KHquSiY9JOpJI8
 PpY3hPWQS6j2r5Q2pZu/LM345r0rcj5At1BzCzGqcfKxRUH7rbFDQQ1D3Moehzho
 Gqrkv2/p4FAAGFG+4bJ6
 =ZzHl
 -----END PGP SIGNATURE-----

Merge tag 'mac80211-for-davem-2017-02-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
A few simple fixes:
 * fix FILS AEAD cipher usage to use the correct AAD vectors
   and to use synchronous algorithms
 * fix using mesh HT operation data from userspace
 * fix adding mesh vendor elements to beacons & plink frames
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06 10:55:08 -05:00
Eric Dumazet
ebf6c9cb23 ipv6: tcp: add a missing tcp_v6_restore_cb()
Dmitry reported use-after-free in ip6_datagram_recv_specific_ctl()

A similar bug was fixed in commit 8ce48623f0 ("ipv6: tcp: restore
IP6CB for pktoptions skbs"), but I missed another spot.

tcp_v6_syn_recv_sock() can indeed set np->pktoptions from ireq->pktopts

Fixes: 971f10eca1 ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06 10:52:45 -05:00
Takashi Iwai
37a7ea4a9b ALSA: seq: Don't handle loop timeout at snd_seq_pool_done()
snd_seq_pool_done() syncs with closing of all opened threads, but it
aborts the wait loop with a timeout, and proceeds to the release
resource even if not all threads have been closed.  The timeout was 5
seconds, and if you run a crazy stuff, it can exceed easily, and may
result in the access of the invalid memory address -- this is what
syzkaller detected in a bug report.

As a fix, let the code graduate from naiveness, simply remove the loop
timeout.

BugLink: http://lkml.kernel.org/r/CACT4Y+YdhDV2H5LLzDTJDVF-qiYHUHhtRaW4rbb4gUhTCQB81w@mail.gmail.com
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-06 15:09:48 +01:00
Rafael J. Wysocki
cbf304e420 Merge branches 'pm-core-fixes' and 'pm-cpufreq-fixes'
* pm-core-fixes:
  PM / runtime: Avoid false-positive warnings from might_sleep_if()

* pm-cpufreq-fixes:
  cpufreq: intel_pstate: Disable energy efficiency optimization
  cpufreq: brcmstb-avs-cpufreq: properly retrieve P-state upon suspend
  cpufreq: brcmstb-avs-cpufreq: extend sysfs entry brcm_avs_pmap
2017-02-06 14:52:10 +01:00
Masashi Honma
fd551bac47 nl80211: Fix mesh HT operation check
A previous change to fix checks for NL80211_MESHCONF_HT_OPMODE
missed setting the flag when replacing FILL_IN_MESH_PARAM_IF_SET
with checking codes. This results in dropping the received HT
operation value when called by nl80211_update_mesh_config(). Fix
this by setting the flag properly.

Fixes: 9757235f45 ("nl80211: correct checks for NL80211_MESHCONF_HT_OPMODE value")
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
[rewrite commit message to use Fixes: line]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-06 07:59:07 +01:00
Thorsten Horstmann
da7061c82e mac80211: Fix adding of mesh vendor IEs
The function ieee80211_ie_split_vendor doesn't return 0 on errors. Instead
it returns any offset < ielen when WLAN_EID_VENDOR_SPECIFIC is found. The
return value in mesh_add_vendor_ies must therefore be checked against
ifmsh->ie_len and not 0. Otherwise all ifmsh->ie starting with
WLAN_EID_VENDOR_SPECIFIC will be rejected.

Fixes: 082ebb0c25 ("mac80211: fix mesh beacon format")
Signed-off-by: Thorsten Horstmann <thorsten@defutech.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fit.fraunhofer.de>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
[sven@narfation.org: Add commit message]
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-06 07:55:44 +01:00
Jouni Malinen
01fba20b59 mac80211: Allocate a sync skcipher explicitly for FILS AEAD
The skcipher could have been of the async variant which may return from
skcipher_encrypt() with -EINPROGRESS after having queued the request.
The FILS AEAD implementation here does not have code for dealing with
that possibility, so allocate a sync cipher explicitly to avoid
potential issues with hardware accelerators.

This is based on the patch sent out by Ard.

Fixes: 39404feee6 ("mac80211: FILS AEAD protection for station mode association frames")
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-06 07:42:47 +01:00
Jouni Malinen
e479ab651f mac80211: Fix FILS AEAD protection in Association Request frame
Incorrect num_elem parameter value (1 vs. 5) was used in the
aes_siv_encrypt() call. This resulted in only the first one of the five
AAD vectors to SIV getting included in calculation. This does not
protect all the contents correctly and would not interoperate with a
standard compliant implementation.

Fix this by using the correct number. A matching fix is needed in the AP
side (hostapd) to get FILS authentication working properly.

Fixes: 39404feee6 ("mac80211: FILS AEAD protection for station mode association frames")
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-06 07:42:39 +01:00
Linus Torvalds
d5adbfcd5f Linux 4.10-rc7 2017-02-05 15:10:58 -08:00
Eric Dumazet
7892032cfe ip6_gre: fix ip6gre_err() invalid reads
Andrey Konovalov reported out of bound accesses in ip6gre_err()

If GRE flags contains GRE_KEY, the following expression
*(((__be32 *)p) + (grehlen / 4) - 1)

accesses data ~40 bytes after the expected point, since
grehlen includes the size of IPv6 headers.

Let's use a "struct gre_base_hdr *greh" pointer to make this
code more readable.

p[1] becomes greh->protocol.
grhlen is the GRE header length.

Fixes: c12b395a46 ("gre: Support GRE over IPv6")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-05 17:23:04 -05:00
Yazen Ghannam
08b259631b x86/CPU/AMD: Fix Zen SMT topology
After:

  a33d331761 ("x86/CPU/AMD: Fix Bulldozer topology")

our  SMT scheduling topology for Fam17h systems is broken, because
the ThreadId is included in the ApicId when SMT is enabled.

So, without further decoding cpu_core_id is unique for each thread
rather than the same for threads on the same core. This didn't affect
systems with SMT disabled. Make cpu_core_id be what it is defined to be.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org> # 4.9
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170205105022.8705-2-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-05 12:18:45 +01:00
Borislav Petkov
79a8b9aa38 x86/CPU/AMD: Bring back Compute Unit ID
Commit:

  a33d331761 ("x86/CPU/AMD: Fix Bulldozer topology")

restored the initial approach we had with the Fam15h topology of
enumerating CU (Compute Unit) threads as cores. And this is still
correct - they're beefier than HT threads but still have some
shared functionality.

Our current approach has a problem with the Mad Max Steam game, for
example. Yves Dionne reported a certain "choppiness" while playing on
v4.9.5.

That problem stems most likely from the fact that the CU threads share
resources within one CU and when we schedule to a thread of a different
compute unit, this incurs latency due to migrating the working set to a
different CU through the caches.

When the thread siblings mask mirrors that aspect of the CUs and
threads, the scheduler pays attention to it and tries to schedule within
one CU first. Which takes care of the latency, of course.

Reported-by: Yves Dionne <yves.dionne@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org> # 4.9
Cc: Brice Goglin <Brice.Goglin@inria.fr>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yazen Ghannam <yazen.ghannam@amd.com>
Link: http://lkml.kernel.org/r/20170205105022.8705-1-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-05 12:18:45 +01:00
Eric Dumazet
d71b789688 netlabel: out of bound access in cipso_v4_validate()
syzkaller found another out of bound access in ip_options_compile(),
or more exactly in cipso_v4_validate()

Fixes: 20e2a86485 ("cipso: handle CIPSO options correctly when NetLabel is disabled")
Fixes: 446fda4f26 ("[NetLabel]: CIPSOv4 engine")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov  <dvyukov@google.com>
Cc: Paul Moore <paul@paul-moore.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-04 19:44:22 -05:00
Eric Dumazet
34b2cef20f ipv4: keep skb->dst around in presence of IP options
Andrey Konovalov got crashes in __ip_options_echo() when a NULL skb->dst
is accessed.

ipv4_pktinfo_prepare() should not drop the dst if (evil) IP options
are present.

We could refine the test to the presence of ts_needtime or srr,
but IP options are not often used, so let's be conservative.

Thanks to syzkaller team for finding this bug.

Fixes: d826eb14ec ("ipv4: PKTINFO doesnt need dst reference")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-04 19:42:28 -05:00
Dan Williams
bfb34527a3 libnvdimm, pfn: fix memmap reservation size versus 4K alignment
When vmemmap_populate() allocates space for the memmap it does so in 2MB
sized chunks. The libnvdimm-pfn driver incorrectly accounts for this
when the alignment of the device is set to 4K. When this happens we
trigger memory allocation failures in altmap_alloc_block_buf() and
trigger warnings of the form:

 WARNING: CPU: 0 PID: 3376 at arch/x86/mm/init_64.c:656 arch_add_memory+0xe4/0xf0
 [..]
 Call Trace:
  dump_stack+0x86/0xc3
  __warn+0xcb/0xf0
  warn_slowpath_null+0x1d/0x20
  arch_add_memory+0xe4/0xf0
  devm_memremap_pages+0x29b/0x4e0

Fixes: 315c562536 ("libnvdimm, pfn: add 'align' attribute, default to HPAGE_SIZE")
Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-02-04 14:47:31 -08:00
Linus Torvalds
a572a1b999 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:

 - Prevent double activation of interrupt lines, which causes problems
   on certain interrupt controllers

 - Handle the fallout of the above because x86 (ab)uses the activation
   function to reconfigure interrupts under the hood.

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/irq: Make irq activate operations symmetric
  irqdomain: Avoid activating interrupts more than once
2017-02-04 12:18:01 -08:00
Linus Torvalds
24bc5fe716 KVM fix for v4.10-rc7
Fix a regression that prevented migration between hosts with different
 XSAVE features even if the missing features were not used by the guest
 (for stable).
 -----BEGIN PGP SIGNATURE-----
 
 iQEcBAABCAAGBQJYlf83AAoJEED/6hsPKofoQI8H/2Y9v5FkIMUeLVPf5nskcomw
 pV/IqqMJEQ0sEp0+fkGhk15nykrVpXfOdqgGD8FI9Xk8rlkTEcUSGMGvfXrIk0ir
 fzX27ASWrHvyjso+6XZzarSUhMFiBljU+NDcqWgjAeYEA1H+fxtxcomx+KiC1D1H
 Q3kYMWTDQ0q/QU0q/4ohVM0gfVIunmVjoJaMK3tlrPP+w4MgMu2WALi0BlZKyugZ
 fcVxzgGxPKoxAfXoFHohS7jKhLX9rF8MJoSH2NxInguajpMtf76Jw+YOr10yWtR2
 ESY/5JXb4KLE94cwM3XiDghYg2ak/zphTFxBbPHmSxY3nim7QahRyuiMQFr3VN8=
 =0UcD
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fix from Radim Krčmář:
 "Fix a regression that prevented migration between hosts with different
  XSAVE features even if the missing features were not used by the guest
  (for stable)"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: do not save guest-unsupported XSAVE state
2017-02-04 12:07:54 -08:00
Linus Torvalds
412e6d3fec Char/misc driver fixes for 4.10-rc7
Here are two bugfixes that resolve some reported issues.  One in the
 firmware loader, that should fix the much-reported problem of crashes
 with it.  The other is a hyperv fix for a reported regression.
 
 Both have been in linux-next for a week or so with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWJWsGA8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ylWmwCgjvg9SImQDY2FKYNAOhQnBh9gtXUAn0Gux/KD
 yzqEsG5BOmjD3YcYGsx6
 =VzHo
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are two bugfixes that resolve some reported issues. One in the
  firmware loader, that should fix the much-reported problem of crashes
  with it. The other is a hyperv fix for a reported regression.

  Both have been in linux-next for a week or so with no reported issues"

* tag 'char-misc-4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
  firmware: fix NULL pointer dereference in __fw_load_abort()
2017-02-04 10:44:15 -08:00
Linus Torvalds
252bf9f4c4 Staging/IIO fixes for 4.10-rc7
Here are a few small IIO and one staging driver fix for 4.10-rc7.  They
 fix some reported issues with the drivers.
 
 All of them have been in linux-next for a week or so with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWJW6xQ8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ynvjACgsAba59pU0bEDsUmtzgF4WoPYX3sAoLgB5I16
 MHXQKHRl//uQtYboSufC
 =CM0c
 -----END PGP SIGNATURE-----

Merge tag 'staging-4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO fixes from Greg KH:
 "Here are a few small IIO and one staging driver fix for 4.10-rc7. They
  fix some reported issues with the drivers.

  All of them have been in linux-next for a week or so with no reported
  issues"

* tag 'staging-4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: greybus: timesync: validate platform state callback
  iio: dht11: Use usleep_range instead of msleep for start signal
  iio: adc: palmas_gpadc: retrieve a valid iio_dev in suspend/resume
  iio: health: max30100: fixed parenthesis around FIFO count check
  iio: health: afe4404: retrieve a valid iio_dev in suspend/resume
  iio: health: afe4403: retrieve a valid iio_dev in suspend/resume
2017-02-04 10:38:09 -08:00
Linus Torvalds
8fcdcc42a5 USB fixes for 4.10-rc7
Here are some small USB fixes for some reported issues, and the usual
 number of new device ids for 4.10-rc7.
 
 All of these, except the last new device id, have been in linux-next for
 a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWJW8Iw8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ynTtQCfTZyPCHsDudlzuJeqrigE2AsfRfYAnR7OQiZK
 6GgUHc8ulHGyF/Vuib3A
 =dZOf
 -----END PGP SIGNATURE-----

Merge tag 'usb-4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for some reported issues, and the usual
  number of new device ids for 4.10-rc7.

  All of these, except the last new device id, have been in linux-next
  for a while with no reported issues"

* tag 'usb-4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: serial: pl2303: add ATEN device ID
  usb: gadget: f_fs: Assorted buffer overflow checks.
  USB: Add quirk for WORLDE easykey.25 MIDI keyboard
  usb: musb: Fix external abort on non-linefetch for musb_irq_work()
  usb: musb: Fix host mode error -71 regression
  USB: serial: option: add device ID for HP lt2523 (Novatel E371)
  USB: serial: qcserial: add Dell DW5570 QDL
2017-02-04 10:35:55 -08:00
Linus Torvalds
a0a28644c1 SCSI fixes on 20170203
A single fix this time: a fix for a virtqueue removal bug which only
 appears to affect S390, but which results in the queue hanging forever
 thus causing the machine to fail shutdown.
 
 Signed-off-by: James E. J. Bottomley <jejb@linux.vnet.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIbBAABAgAGBQJYlPNHAAoJEAVr7HOZEZN4OsgP9Rlu6udoNn5If6lPly77hjsQ
 ukiXZNtPNOuxeiCrUmTMBm69588/XNyuVrrpP7pccujQhX+5sv2qd2Ph4uoaXLeK
 zq695/Y/ejAVRhORCJNibA+EQ6Dr4+DGEm+Iitifa1ILO/npaf5hCzNfdY7Ln3pb
 cUu8FhXQkFkKOwhNovtOzkB6lXDobh3pZKBxYOsK4Ea5f1CSB+Sjdr/Xl4l141Ei
 3eN+flX9VLX8pV6mJ7xQEoWCYrqjgh7l0PYSgX011S2Qniw8sgwI91XsNABZP3oJ
 Ceu+COJPt3fRYcJugBYvAJB0pFUyxPh8rC0NL6nJLBcWVm5hJoaHX96/I5hgx+r2
 9ZH4lLOiIyyEZQxz31qe73YzGkBe6lBNxJMjRcP3o5MXw+GDsUhZfuwqnX/Zc6EH
 o7R4cW1o08HTgZcE3pKAwhTzzZ5IxMe4pkUiVBxb2TgUMvKfeX9dRBW4YStgRLKC
 EHBQ89g1DSWbP15a4OX45sNYCSYPvq+HyNQCFzXXIhELVsEd7VyCyMK2i8E/ccAu
 UwusYLDpX1QH56IpYNMgwoTJeCjI9HeOTGf7EWtJSMUTa/rrYSFZwcEA6xHxVPco
 o3GqJMID84sg9fOCvToW8tKbl38Smkse9r24FhqBdiZRRJXsCogPCgt2Fa9ZRcPx
 oNy87IN7k4K+bL6BAJw=
 =1j2t
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fix from James Bottomley:
 "A single fix this time: a fix for a virtqueue removal bug which only
  appears to affect S390, but which results in the queue hanging forever
  thus causing the machine to fail shutdown"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: virtio_scsi: Reject commands when virtqueue is broken
2017-02-03 16:18:51 -08:00
Rafael J. Wysocki
a9306a6363 PM / runtime: Avoid false-positive warnings from might_sleep_if()
The might_sleep_if() assertions in __pm_runtime_idle(),
__pm_runtime_suspend() and __pm_runtime_resume() may generate
false-positive warnings in some situations.  For example, that
happens if a nested pm_runtime_get_sync()/pm_runtime_put() pair
is executed with disabled interrupts within an outer
pm_runtime_get_sync()/pm_runtime_put() section for the same device.
[Generally, pm_runtime_get_sync() may sleep, so it should not be
called with disabled interrupts, but in this particular case the
previous pm_runtime_get_sync() guarantees that the device will not
be suspended, so the inner pm_runtime_get_sync() will return
immediately after incrementing the device's usage counter.]

That started to happen in the i915 driver in 4.10-rc, leading to
the following splat:

 BUG: sleeping function called from invalid context at drivers/base/power/runtime.c:1032
 in_atomic(): 1, irqs_disabled(): 0, pid: 1500, name: Xorg
 1 lock held by Xorg/1500:
  #0:  (&dev->struct_mutex){+.+.+.}, at:
  [<ffffffffa0680c13>] i915_mutex_lock_interruptible+0x43/0x140 [i915]
 CPU: 0 PID: 1500 Comm: Xorg Not tainted
 Call Trace:
  dump_stack+0x85/0xc2
  ___might_sleep+0x196/0x260
  __might_sleep+0x53/0xb0
  __pm_runtime_resume+0x7a/0x90
  intel_runtime_pm_get+0x25/0x90 [i915]
  aliasing_gtt_bind_vma+0xaa/0xf0 [i915]
  i915_vma_bind+0xaf/0x1e0 [i915]
  i915_gem_execbuffer_relocate_entry+0x513/0x6f0 [i915]
  i915_gem_execbuffer_relocate_vma.isra.34+0x188/0x250 [i915]
  ? trace_hardirqs_on+0xd/0x10
  ? i915_gem_execbuffer_reserve_vma.isra.31+0x152/0x1f0 [i915]
  ? i915_gem_execbuffer_reserve.isra.32+0x372/0x3a0 [i915]
  i915_gem_do_execbuffer.isra.38+0xa70/0x1a40 [i915]
  ? __might_fault+0x4e/0xb0
  i915_gem_execbuffer2+0xc5/0x260 [i915]
  ? __might_fault+0x4e/0xb0
  drm_ioctl+0x206/0x450 [drm]
  ? i915_gem_execbuffer+0x340/0x340 [i915]
  ? __fget+0x5/0x200
  do_vfs_ioctl+0x91/0x6f0
  ? __fget+0x111/0x200
  ? __fget+0x5/0x200
  SyS_ioctl+0x79/0x90
  entry_SYSCALL_64_fastpath+0x23/0xc6

even though the code triggering it is correct.

Unfortunately, the might_sleep_if() assertions in question are
too coarse-grained to cover such cases correctly, so make them
a bit less sensitive in order to avoid the false-positives.

Reported-and-tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-04 00:44:36 +01:00
Linus Torvalds
a49e6f584e virtio, vhost: last minute fixes
ARM DMA fix revert
 vhost endian-ness fix
 MAINTAINERS: email address change for Amit
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJYlPj5AAoJECgfDbjSjVRp2L0IALFxjzTaXDy+39y3zTkMu97r
 r2Mm2CiduZJ3XrCRFKWnZleA3yKpE1zNkZlpdVV252tG0YC7oHdtdE3Ctu7x8gCv
 25rH7nEbQTF5NcRh/Ur2h1oR1PGXT/CuIkEQCH8FxUWa1anbJC0Y6dpd+VSd4wWV
 eQMqh/1775IdH7XeYbWvgOi3FK0ox9RclcxzRzUqEcVxL3MkZaKzPh7Qh2dGokLA
 vF/ao5fchepXtUbyDwdIjvkc9bQlEjcXhch7Zz+aep+iwfEfZqB7Ku4yDmXrGTuw
 URFlRen83zFMfu2Xd10hVL1JukR8TWxuxcQx8yzYEOqe9uF8LAq8hsXAgV72VmM=
 =xnLA
 -----END PGP SIGNATURE-----

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio/vhost fixes from Michael S. Tsirkin:
 "Last minute fixes:

   - ARM DMA fix revert

   - vhost endian-ness fix

   - MAINTAINERS: email address change for Amit"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  MAINTAINERS: update email address for Amit Shah
  vhost: fix initialization for vq->is_le
  Revert "vring: Force use of DMA API for ARM-based systems with legacy devices"
2017-02-03 15:43:30 -08:00
Linus Torvalds
e9f7f17d53 VFIO fixes for v4.10-rc7
- Fix an error path in SPAPR IOMMU backend (Alexey Kardashevskiy)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.14 (GNU/Linux)
 
 iQIcBAABAgAGBQJYlKX5AAoJECObm247sIsiYWIP/3nXMKTH7zf56TNLFZ0Eqk9C
 lBCBMaVjQ6Um3LUutLfc9IxEPE7M2vqFL9mfrshv1vwObz5zlvoPvzUm7QAn+eeS
 RN6vgQRTRrBrfcvAIsIZe7YDEXDXwYRl0KzhaasGpKXOdir8qp4ZyhTzWq9f7IG3
 nq4LfqelEVivp6Fcoy/ENdGueFIeGzo+PY5ofqg5eIrNVPdqoeT9BDIjeL+QR396
 ONDtdMGMuWFUC20jKYq17yhu5siHQVmGYIvLbEuURRvLFszkHkXkKRHufmk6AXxe
 Zq/jkvTpEIBdy+hZWetKNDMkgyGb6CFlJrliXAu6gOxDHHEvidRwny8Ydfzb4X6x
 UZfNEkjC5H2lDTAIBXzJdPYkSo6MnEdmsVdiLlsCGeSxfxqIUwk+pK8VZBgfZcFa
 kK5Qkzcd7WvRMjpqbVZky+XSrWfINaoLAob1NmPZ61iz6Z6YbofPmRB3eFGEyAU7
 PIsgCM36C2j38o9s6k2SUKFf3kjWQQLvwndtE9sW5lX8l5qr/mVPm6rWT/f+rW6K
 tVqgexebT/SPOLYTyXo4XPuGsjc9C3ueLfYwmECT7Cr+wSP8BxRrPCKup9/6JTVT
 EBNdpz2JnX4qmegxCjKi1I4axDq3eULLpi89Sk99LrFnd0TedorcK0j9FEZmcgH8
 G0LYXBq/ffDSN5dCAaVa
 =5FCd
 -----END PGP SIGNATURE-----

Merge tag 'vfio-v4.10-rc7' of git://github.com/awilliam/linux-vfio

Pull VFIO fix from Alex Williamson:
 "Fix an error path in SPAPR IOMMU backend (Alexey Kardashevskiy)"

* tag 'vfio-v4.10-rc7' of git://github.com/awilliam/linux-vfio:
  vfio/spapr: Fix missing mutex unlock when creating a window
2017-02-03 15:38:53 -08:00
Srinivas Pandruvada
6e978b22ef cpufreq: intel_pstate: Disable energy efficiency optimization
Some Kabylake desktop processors may not reach max turbo when running in
HWP mode, even if running under sustained 100% utilization.

This occurs when the HWP.EPP (Energy Performance Preference) is set to
"balance_power" (0x80) -- the default on most systems.

It occurs because the platform BIOS may erroneously enable an
energy-efficiency setting -- MSR_IA32_POWER_CTL BIT-EE, which is not
recommended to be enabled on this SKU.

On the failing systems, this BIOS issue was not discovered when the
desktop motherboard was tested with Windows, because the BIOS also
neglects to provide the ACPI/CPPC table, that Windows requires to enable
HWP, and so Windows runs in legacy P-state mode, where this setting has
no effect.

Linux' intel_pstate driver does not require ACPI/CPPC to enable HWP, and
so it runs in HWP mode, exposing this incorrect BIOS configuration.

There are several ways to address this problem.

First, Linux can also run in legacy P-state mode on this system.
As intel_pstate is how Linux enables HWP, booting with
"intel_pstate=disable"
will run in acpi-cpufreq/ondemand legacy p-state mode.

Or second, the "performance" governor can be used with intel_pstate,
which will modify HWP.EPP to 0.

Or third, starting in 4.10, the
/sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
attribute in can be updated from "balance_power" to "performance".

Or fourth, apply this patch, which fixes the erroneous setting of
MSR_IA32_POWER_CTL BIT_EE on this model, allowing the default
configuration to function as designed.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Cc: 4.6+ <stable@vger.kernel.org> # 4.6+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-04 00:11:08 +01:00