From 4037c92f0a3022825e56f60d09f05e2ab37ccd7e Mon Sep 17 00:00:00 2001 From: Kees Cook <keescook@chromium.org> Date: Wed, 4 Oct 2017 17:45:35 -0700 Subject: [PATCH] IB/qib: Convert timers to use timer_setup() In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() helper to pass the timer pointer explicitly. Cc: Mike Marciniszyn <infinipath@intel.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: linux-rdma@vger.kernel.org Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Doug Ledford <dledford@redhat.com> --- drivers/infiniband/hw/qib/qib.h | 4 ++-- drivers/infiniband/hw/qib/qib_7220.h | 1 + drivers/infiniband/hw/qib/qib_driver.c | 9 ++++---- drivers/infiniband/hw/qib/qib_iba6120.c | 19 ++++++++-------- drivers/infiniband/hw/qib/qib_iba7220.c | 20 ++++++++--------- drivers/infiniband/hw/qib/qib_iba7322.c | 17 +++++++-------- drivers/infiniband/hw/qib/qib_init.c | 29 ++++++++++--------------- drivers/infiniband/hw/qib/qib_intr.c | 6 ++--- drivers/infiniband/hw/qib/qib_mad.c | 12 +++++----- drivers/infiniband/hw/qib/qib_sd7220.c | 10 ++++----- drivers/infiniband/hw/qib/qib_tx.c | 4 ++-- drivers/infiniband/hw/qib/qib_verbs.c | 6 ++--- 12 files changed, 62 insertions(+), 75 deletions(-) diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h index f9e1c69603a5..f9541a0ee5cd 100644 --- a/drivers/infiniband/hw/qib/qib.h +++ b/drivers/infiniband/hw/qib/qib.h @@ -1188,7 +1188,7 @@ int qib_set_lid(struct qib_pportdata *, u32, u8); void qib_hol_down(struct qib_pportdata *); void qib_hol_init(struct qib_pportdata *); void qib_hol_up(struct qib_pportdata *); -void qib_hol_event(unsigned long); +void qib_hol_event(struct timer_list *); void qib_disable_after_error(struct qib_devdata *); int qib_set_uevent_bits(struct qib_pportdata *, const int); @@ -1302,7 +1302,7 @@ void qib_get_eeprom_info(struct qib_devdata *); #define qib_inc_eeprom_err(dd, eidx, incr) void qib_dump_lookup_output_queue(struct qib_devdata *); void qib_force_pio_avail_update(struct qib_devdata *); -void qib_clear_symerror_on_linkup(unsigned long opaque); +void qib_clear_symerror_on_linkup(struct timer_list *t); /* * Set LED override, only the two LSBs have "public" meaning, but diff --git a/drivers/infiniband/hw/qib/qib_7220.h b/drivers/infiniband/hw/qib/qib_7220.h index a5356cb4252e..c467a6076aa8 100644 --- a/drivers/infiniband/hw/qib/qib_7220.h +++ b/drivers/infiniband/hw/qib/qib_7220.h @@ -75,6 +75,7 @@ struct qib_chip_specific { char bitsmsgbuf[64]; struct timer_list relock_timer; unsigned int relock_interval; /* in jiffies */ + struct qib_devdata *dd; }; struct qib_chippport_specific { diff --git a/drivers/infiniband/hw/qib/qib_driver.c b/drivers/infiniband/hw/qib/qib_driver.c index 719906a9fd51..33d3335385e8 100644 --- a/drivers/infiniband/hw/qib/qib_driver.c +++ b/drivers/infiniband/hw/qib/qib_driver.c @@ -682,9 +682,10 @@ int qib_set_lid(struct qib_pportdata *ppd, u32 lid, u8 lmc) /* Below is "non-zero" to force override, but both actual LEDs are off */ #define LED_OVER_BOTH_OFF (8) -static void qib_run_led_override(unsigned long opaque) +static void qib_run_led_override(struct timer_list *t) { - struct qib_pportdata *ppd = (struct qib_pportdata *)opaque; + struct qib_pportdata *ppd = from_timer(ppd, t, + led_override_timer); struct qib_devdata *dd = ppd->dd; int timeoff; int ph_idx; @@ -735,9 +736,7 @@ void qib_set_led_override(struct qib_pportdata *ppd, unsigned int val) */ if (atomic_inc_return(&ppd->led_override_timer_active) == 1) { /* Need to start timer */ - init_timer(&ppd->led_override_timer); - ppd->led_override_timer.function = qib_run_led_override; - ppd->led_override_timer.data = (unsigned long) ppd; + timer_setup(&ppd->led_override_timer, qib_run_led_override, 0); ppd->led_override_timer.expires = jiffies + 1; add_timer(&ppd->led_override_timer); } else { diff --git a/drivers/infiniband/hw/qib/qib_iba6120.c b/drivers/infiniband/hw/qib/qib_iba6120.c index 3259a60e4f4f..0113b4e60447 100644 --- a/drivers/infiniband/hw/qib/qib_iba6120.c +++ b/drivers/infiniband/hw/qib/qib_iba6120.c @@ -266,6 +266,7 @@ struct qib_chip_specific { u64 rpkts; /* total packets received (sample result) */ u64 xmit_wait; /* # of ticks no data sent (sample result) */ struct timer_list pma_timer; + struct qib_pportdata *ppd; char emsgbuf[128]; char bitsmsgbuf[64]; u8 pma_sample_status; @@ -2647,9 +2648,9 @@ static void qib_chk_6120_errormask(struct qib_devdata *dd) * need traffic_wds done the way it is * called from add_timer */ -static void qib_get_6120_faststats(unsigned long opaque) +static void qib_get_6120_faststats(struct timer_list *t) { - struct qib_devdata *dd = (struct qib_devdata *) opaque; + struct qib_devdata *dd = from_timer(dd, t, stats_timer); struct qib_pportdata *ppd = dd->pport; unsigned long flags; u64 traffic_wds; @@ -2937,10 +2938,10 @@ static int qib_6120_set_loopback(struct qib_pportdata *ppd, const char *what) return ret; } -static void pma_6120_timer(unsigned long data) +static void pma_6120_timer(struct timer_list *t) { - struct qib_pportdata *ppd = (struct qib_pportdata *)data; - struct qib_chip_specific *cs = ppd->dd->cspec; + struct qib_chip_specific *cs = from_timer(cs, t, pma_timer); + struct qib_pportdata *ppd = cs->ppd; struct qib_ibport *ibp = &ppd->ibport_data; unsigned long flags; @@ -3205,6 +3206,7 @@ static int init_6120_variables(struct qib_devdata *dd) dd->num_pports = 1; dd->cspec = (struct qib_chip_specific *)(ppd + dd->num_pports); + dd->cspec->ppd = ppd; ppd->cpspec = NULL; /* not used in this chip */ spin_lock_init(&dd->cspec->kernel_tid_lock); @@ -3289,11 +3291,8 @@ static int init_6120_variables(struct qib_devdata *dd) dd->rhdrhead_intr_off = 1ULL << 32; /* setup the stats timer; the add_timer is done at end of init */ - setup_timer(&dd->stats_timer, qib_get_6120_faststats, - (unsigned long)dd); - - setup_timer(&dd->cspec->pma_timer, pma_6120_timer, - (unsigned long)ppd); + timer_setup(&dd->stats_timer, qib_get_6120_faststats, 0); + timer_setup(&dd->cspec->pma_timer, pma_6120_timer, 0); dd->ureg_align = qib_read_kreg32(dd, kr_palign); diff --git a/drivers/infiniband/hw/qib/qib_iba7220.c b/drivers/infiniband/hw/qib/qib_iba7220.c index 04bdd3d487b1..d400aa7c73b4 100644 --- a/drivers/infiniband/hw/qib/qib_iba7220.c +++ b/drivers/infiniband/hw/qib/qib_iba7220.c @@ -1042,9 +1042,11 @@ static int qib_decode_7220_err(struct qib_devdata *dd, char *buf, size_t blen, return iserr; } -static void reenable_7220_chase(unsigned long opaque) +static void reenable_7220_chase(struct timer_list *t) { - struct qib_pportdata *ppd = (struct qib_pportdata *)opaque; + struct qib_chippport_specific *cpspec = from_timer(cpspec, t, + chase_timer); + struct qib_pportdata *ppd = &cpspec->pportdata; ppd->cpspec->chase_timer.expires = 0; qib_set_ib_7220_lstate(ppd, QLOGIC_IB_IBCC_LINKCMD_DOWN, @@ -1663,7 +1665,7 @@ static void qib_7220_quiet_serdes(struct qib_pportdata *ppd) dd->control | QLOGIC_IB_C_FREEZEMODE); ppd->cpspec->chase_end = 0; - if (ppd->cpspec->chase_timer.data) /* if initted */ + if (ppd->cpspec->chase_timer.function) /* if initted */ del_timer_sync(&ppd->cpspec->chase_timer); if (ppd->cpspec->ibsymdelta || ppd->cpspec->iblnkerrdelta || @@ -3263,9 +3265,9 @@ static u32 qib_read_7220portcntrs(struct qib_devdata *dd, loff_t pos, u32 port, * need traffic_wds done the way it is * called from add_timer */ -static void qib_get_7220_faststats(unsigned long opaque) +static void qib_get_7220_faststats(struct timer_list *t) { - struct qib_devdata *dd = (struct qib_devdata *) opaque; + struct qib_devdata *dd = from_timer(dd, t, stats_timer); struct qib_pportdata *ppd = dd->pport; unsigned long flags; u64 traffic_wds; @@ -3997,6 +3999,7 @@ static int qib_init_7220_variables(struct qib_devdata *dd) dd->num_pports = 1; dd->cspec = (struct qib_chip_specific *)(cpspec + dd->num_pports); + dd->cspec->dd = dd; ppd->cpspec = cpspec; spin_lock_init(&dd->cspec->sdepb_lock); @@ -4069,8 +4072,7 @@ static int qib_init_7220_variables(struct qib_devdata *dd) if (!qib_mini_init) qib_write_kreg(dd, kr_rcvbthqp, QIB_KD_QP); - setup_timer(&ppd->cpspec->chase_timer, reenable_7220_chase, - (unsigned long)ppd); + timer_setup(&ppd->cpspec->chase_timer, reenable_7220_chase, 0); qib_num_cfg_vls = 1; /* if any 7220's, only one VL */ @@ -4095,9 +4097,7 @@ static int qib_init_7220_variables(struct qib_devdata *dd) dd->rhdrhead_intr_off = 1ULL << 32; /* setup the stats timer; the add_timer is done at end of init */ - init_timer(&dd->stats_timer); - dd->stats_timer.function = qib_get_7220_faststats; - dd->stats_timer.data = (unsigned long) dd; + timer_setup(&dd->stats_timer, qib_get_7220_faststats, 0); dd->stats_timer.expires = jiffies + ACTIVITY_TIMER * HZ; /* diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c index 14cadf6d6214..a432d8e450b4 100644 --- a/drivers/infiniband/hw/qib/qib_iba7322.c +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -1739,9 +1739,10 @@ static void qib_error_tasklet(unsigned long data) qib_write_kreg(dd, kr_errmask, dd->cspec->errormask); } -static void reenable_chase(unsigned long opaque) +static void reenable_chase(struct timer_list *t) { - struct qib_pportdata *ppd = (struct qib_pportdata *)opaque; + struct qib_chippport_specific *cp = from_timer(cp, t, chase_timer); + struct qib_pportdata *ppd = cp->ppd; ppd->cpspec->chase_timer.expires = 0; qib_set_ib_7322_lstate(ppd, QLOGIC_IB_IBCC_LINKCMD_DOWN, @@ -2531,7 +2532,7 @@ static void qib_7322_mini_quiet_serdes(struct qib_pportdata *ppd) cancel_delayed_work_sync(&ppd->cpspec->ipg_work); ppd->cpspec->chase_end = 0; - if (ppd->cpspec->chase_timer.data) /* if initted */ + if (ppd->cpspec->chase_timer.function) /* if initted */ del_timer_sync(&ppd->cpspec->chase_timer); /* @@ -5138,9 +5139,9 @@ static u32 qib_read_7322portcntrs(struct qib_devdata *dd, loff_t pos, u32 port, * * called from add_timer */ -static void qib_get_7322_faststats(unsigned long opaque) +static void qib_get_7322_faststats(struct timer_list *t) { - struct qib_devdata *dd = (struct qib_devdata *) opaque; + struct qib_devdata *dd = from_timer(dd, t, stats_timer); struct qib_pportdata *ppd; unsigned long flags; u64 traffic_wds; @@ -6614,8 +6615,7 @@ static int qib_init_7322_variables(struct qib_devdata *dd) if (!qib_mini_init) write_7322_init_portregs(ppd); - setup_timer(&cp->chase_timer, reenable_chase, - (unsigned long)ppd); + timer_setup(&cp->chase_timer, reenable_chase, 0); ppd++; } @@ -6641,8 +6641,7 @@ static int qib_init_7322_variables(struct qib_devdata *dd) (u64) rcv_int_count << IBA7322_HDRHEAD_PKTINT_SHIFT; /* setup the stats timer; the add_timer is done at end of init */ - setup_timer(&dd->stats_timer, qib_get_7322_faststats, - (unsigned long)dd); + timer_setup(&dd->stats_timer, qib_get_7322_faststats, 0); dd->ureg_align = 0x10000; /* 64KB alignment */ diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c index c5a4c65636d6..5243ad30dfc0 100644 --- a/drivers/infiniband/hw/qib/qib_init.c +++ b/drivers/infiniband/hw/qib/qib_init.c @@ -93,7 +93,7 @@ unsigned qib_cc_table_size; module_param_named(cc_table_size, qib_cc_table_size, uint, S_IRUGO); MODULE_PARM_DESC(cc_table_size, "Congestion control table entries 0 (CCA disabled - default), min = 128, max = 1984"); -static void verify_interrupt(unsigned long); +static void verify_interrupt(struct timer_list *); static struct idr qib_unit_table; u32 qib_cpulist_count; @@ -233,8 +233,7 @@ int qib_init_pportdata(struct qib_pportdata *ppd, struct qib_devdata *dd, spin_lock_init(&ppd->cc_shadow_lock); init_waitqueue_head(&ppd->state_wait); - setup_timer(&ppd->symerr_clear_timer, qib_clear_symerror_on_linkup, - (unsigned long)ppd); + timer_setup(&ppd->symerr_clear_timer, qib_clear_symerror_on_linkup, 0); ppd->qib_wq = NULL; ppd->ibport_data.pmastats = @@ -428,8 +427,7 @@ static int loadtime_init(struct qib_devdata *dd) qib_get_eeprom_info(dd); /* setup time (don't start yet) to verify we got interrupt */ - setup_timer(&dd->intrchk_timer, verify_interrupt, - (unsigned long)dd); + timer_setup(&dd->intrchk_timer, verify_interrupt, 0); done: return ret; } @@ -493,9 +491,9 @@ static void enable_chip(struct qib_devdata *dd) } } -static void verify_interrupt(unsigned long opaque) +static void verify_interrupt(struct timer_list *t) { - struct qib_devdata *dd = (struct qib_devdata *) opaque; + struct qib_devdata *dd = from_timer(dd, t, intrchk_timer); u64 int_counter; if (!dd) @@ -753,8 +751,7 @@ int qib_init(struct qib_devdata *dd, int reinit) continue; if (dd->flags & QIB_HAS_SEND_DMA) ret = qib_setup_sdma(ppd); - setup_timer(&ppd->hol_timer, qib_hol_event, - (unsigned long)ppd); + timer_setup(&ppd->hol_timer, qib_hol_event, 0); ppd->hol_state = QIB_HOL_UP; } @@ -815,23 +812,19 @@ static void qib_stop_timers(struct qib_devdata *dd) struct qib_pportdata *ppd; int pidx; - if (dd->stats_timer.data) { + if (dd->stats_timer.function) del_timer_sync(&dd->stats_timer); - dd->stats_timer.data = 0; - } - if (dd->intrchk_timer.data) { + if (dd->intrchk_timer.function) del_timer_sync(&dd->intrchk_timer); - dd->intrchk_timer.data = 0; - } for (pidx = 0; pidx < dd->num_pports; ++pidx) { ppd = dd->pport + pidx; - if (ppd->hol_timer.data) + if (ppd->hol_timer.function) del_timer_sync(&ppd->hol_timer); - if (ppd->led_override_timer.data) { + if (ppd->led_override_timer.function) { del_timer_sync(&ppd->led_override_timer); atomic_set(&ppd->led_override_timer_active, 0); } - if (ppd->symerr_clear_timer.data) + if (ppd->symerr_clear_timer.function) del_timer_sync(&ppd->symerr_clear_timer); } } diff --git a/drivers/infiniband/hw/qib/qib_intr.c b/drivers/infiniband/hw/qib/qib_intr.c index a014fd4cd076..65c3b964ad1b 100644 --- a/drivers/infiniband/hw/qib/qib_intr.c +++ b/drivers/infiniband/hw/qib/qib_intr.c @@ -141,7 +141,7 @@ void qib_handle_e_ibstatuschanged(struct qib_pportdata *ppd, u64 ibcs) qib_hol_up(ppd); /* useful only for 6120 now */ *ppd->statusp |= QIB_STATUS_IB_READY | QIB_STATUS_IB_CONF; - qib_clear_symerror_on_linkup((unsigned long)ppd); + qib_clear_symerror_on_linkup(&ppd->symerr_clear_timer); spin_lock_irqsave(&ppd->lflags_lock, flags); ppd->lflags |= QIBL_LINKACTIVE | QIBL_LINKV; ppd->lflags &= ~(QIBL_LINKINIT | @@ -170,9 +170,9 @@ void qib_handle_e_ibstatuschanged(struct qib_pportdata *ppd, u64 ibcs) signal_ib_event(ppd, ev); } -void qib_clear_symerror_on_linkup(unsigned long opaque) +void qib_clear_symerror_on_linkup(struct timer_list *t) { - struct qib_pportdata *ppd = (struct qib_pportdata *)opaque; + struct qib_pportdata *ppd = from_timer(ppd, t, symerr_clear_timer); if (ppd->lflags & QIBL_LINKACTIVE) return; diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c index 82d9da9b6997..dd0992e9ab50 100644 --- a/drivers/infiniband/hw/qib/qib_mad.c +++ b/drivers/infiniband/hw/qib/qib_mad.c @@ -2446,9 +2446,9 @@ int qib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port, return ret; } -static void xmit_wait_timer_func(unsigned long opaque) +static void xmit_wait_timer_func(struct timer_list *t) { - struct qib_pportdata *ppd = (struct qib_pportdata *)opaque; + struct qib_pportdata *ppd = from_timer(ppd, t, cong_stats.timer); struct qib_devdata *dd = dd_from_ppd(ppd); unsigned long flags; u8 status; @@ -2478,10 +2478,8 @@ void qib_notify_create_mad_agent(struct rvt_dev_info *rdi, int port_idx) /* Initialize xmit_wait structure */ dd->pport[port_idx].cong_stats.counter = 0; - init_timer(&dd->pport[port_idx].cong_stats.timer); - dd->pport[port_idx].cong_stats.timer.function = xmit_wait_timer_func; - dd->pport[port_idx].cong_stats.timer.data = - (unsigned long)(&dd->pport[port_idx]); + timer_setup(&dd->pport[port_idx].cong_stats.timer, + xmit_wait_timer_func, 0); dd->pport[port_idx].cong_stats.timer.expires = 0; add_timer(&dd->pport[port_idx].cong_stats.timer); } @@ -2492,7 +2490,7 @@ void qib_notify_free_mad_agent(struct rvt_dev_info *rdi, int port_idx) struct qib_devdata *dd = container_of(ibdev, struct qib_devdata, verbs_dev); - if (dd->pport[port_idx].cong_stats.timer.data) + if (dd->pport[port_idx].cong_stats.timer.function) del_timer_sync(&dd->pport[port_idx].cong_stats.timer); if (dd->pport[port_idx].ibport_data.smi_ah) diff --git a/drivers/infiniband/hw/qib/qib_sd7220.c b/drivers/infiniband/hw/qib/qib_sd7220.c index c72775f27212..c06bcb1a208d 100644 --- a/drivers/infiniband/hw/qib/qib_sd7220.c +++ b/drivers/infiniband/hw/qib/qib_sd7220.c @@ -1390,11 +1390,11 @@ module_param_named(relock_by_timer, qib_relock_by_timer, uint, S_IWUSR | S_IRUGO); MODULE_PARM_DESC(relock_by_timer, "Allow relock attempt if link not up"); -static void qib_run_relock(unsigned long opaque) +static void qib_run_relock(struct timer_list *t) { - struct qib_devdata *dd = (struct qib_devdata *)opaque; + struct qib_chip_specific *cs = from_timer(cs, t, relock_timer); + struct qib_devdata *dd = cs->dd; struct qib_pportdata *ppd = dd->pport; - struct qib_chip_specific *cs = dd->cspec; int timeoff; /* @@ -1440,9 +1440,7 @@ void set_7220_relock_poll(struct qib_devdata *dd, int ibup) /* If timer has not yet been started, do so. */ if (!cs->relock_timer_active) { cs->relock_timer_active = 1; - init_timer(&cs->relock_timer); - cs->relock_timer.function = qib_run_relock; - cs->relock_timer.data = (unsigned long) dd; + timer_setup(&cs->relock_timer, qib_run_relock, 0); cs->relock_interval = timeout; cs->relock_timer.expires = jiffies + timeout; add_timer(&cs->relock_timer); diff --git a/drivers/infiniband/hw/qib/qib_tx.c b/drivers/infiniband/hw/qib/qib_tx.c index eface3b3dacf..db6e925058b7 100644 --- a/drivers/infiniband/hw/qib/qib_tx.c +++ b/drivers/infiniband/hw/qib/qib_tx.c @@ -552,9 +552,9 @@ void qib_hol_up(struct qib_pportdata *ppd) /* * This is only called via the timer. */ -void qib_hol_event(unsigned long opaque) +void qib_hol_event(struct timer_list *t) { - struct qib_pportdata *ppd = (struct qib_pportdata *)opaque; + struct qib_pportdata *ppd = from_timer(ppd, t, hol_timer); /* If hardware error, etc, skip. */ if (!(ppd->dd->flags & QIB_INITTED)) diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c index 9d92aeb8d9a1..db958b1f60b1 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.c +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -389,9 +389,9 @@ void qib_ib_rcv(struct qib_ctxtdata *rcd, void *rhdr, void *data, u32 tlen) * This is called from a timer to check for QPs * which need kernel memory in order to send a packet. */ -static void mem_timer(unsigned long data) +static void mem_timer(struct timer_list *t) { - struct qib_ibdev *dev = (struct qib_ibdev *) data; + struct qib_ibdev *dev = from_timer(dev, t, mem_timer); struct list_head *list = &dev->memwait; struct rvt_qp *qp = NULL; struct qib_qp_priv *priv = NULL; @@ -1532,7 +1532,7 @@ int qib_register_ib_device(struct qib_devdata *dd) init_ibport(ppd + i); /* Only need to initialize non-zero fields. */ - setup_timer(&dev->mem_timer, mem_timer, (unsigned long)dev); + timer_setup(&dev->mem_timer, mem_timer, 0); INIT_LIST_HEAD(&dev->piowait); INIT_LIST_HEAD(&dev->dmawait);