On 12/23/2013 02:07 PM, Tomas Henzl wrote: > On 12/18/2013 12:28 PM, Viswas G wrote: >> From 9338d4bc92b23b4c283f9bd6812646ab74866a40 Mon Sep 17 00:00:00 2001 >> From: Suresh Thiagarajan <Suresh.Thiagarajan@xxxxxxxx> >> Date: Mon, 16 Dec 2013 21:15:20 +0530 >> Subject: [PATCH] pm80xx: Spinlock fix >> >> spin_unlock was used instead of spin_unlock_irqrestore. To fix this >> lock_flags per-adapter is added and used across all the places where pm8001_ha->lock is used. > > I think this could have been fixed but just using spin_unlock_irqsave instead of spin_unlock_irq > why the change to global lock_flags? I'm not a spinlock expert, but is this safe? > Agree with Tomas, it's dangerous to change to global lock_flags. Have you reproduce the bug reported from Jason, and verify the patch? I think better just to change the spin_lock_irq to spin_lock_irqsave if that is the cause. Jack >> >> Reported-by: Jason Seba <jason.seba42@xxxxxxxxx> >> Signed-off-by: Suresh Thiagarajan <Suresh.Thiagarajan@xxxxxxxx> >> Signed-off-by: Viswas G <Viswas.G@xxxxxxxx> >> --- >> drivers/scsi/pm8001/pm8001_hwi.c | 158 ++++++++++++++++++++++---------------- >> drivers/scsi/pm8001/pm8001_sas.c | 50 ++++++------ >> drivers/scsi/pm8001/pm8001_sas.h | 1 + >> drivers/scsi/pm8001/pm80xx_hwi.c | 69 ++++++++++------- >> 4 files changed, 160 insertions(+), 118 deletions(-) >> >> diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c >> index 0a1296a..3901c40 100644 >> --- a/drivers/scsi/pm8001/pm8001_hwi.c >> +++ b/drivers/scsi/pm8001/pm8001_hwi.c >> @@ -411,7 +411,6 @@ static void mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha, >> u32 SSCbit) >> { >> u32 value, offset, i; >> - unsigned long flags; >> >> #define SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR 0x00030000 >> #define SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR 0x00040000 >> @@ -425,10 +424,10 @@ static void mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha, >> * Using shifted destination address 0x3_0000:0x1074 + 0x4000*N (N=0:3) >> * Using shifted destination address 0x4_0000:0x1074 + 0x4000*(N-4) (N=4:7) >> */ >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> if (-1 == pm8001_bar4_shift(pm8001_ha, >> SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return; >> } >> >> @@ -439,7 +438,7 @@ static void mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha, >> /* shift membase 3 for SAS2_SETTINGS_LOCAL_PHY 4 - 7 */ >> if (-1 == pm8001_bar4_shift(pm8001_ha, >> SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return; >> } >> for (i = 4; i < 8; i++) { >> @@ -466,7 +465,7 @@ static void mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha, >> >> /*set the shifted destination address to 0x0 to avoid error operation */ >> pm8001_bar4_shift(pm8001_ha, 0x0); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return; >> } >> >> @@ -481,7 +480,6 @@ static void mpi_set_open_retry_interval_reg(struct pm8001_hba_info *pm8001_ha, >> u32 offset; >> u32 value; >> u32 i; >> - unsigned long flags; >> >> #define OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR 0x00030000 >> #define OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR 0x00040000 >> @@ -490,11 +488,11 @@ static void mpi_set_open_retry_interval_reg(struct pm8001_hba_info *pm8001_ha, >> #define OPEN_RETRY_INTERVAL_REG_MASK 0x0000FFFF >> >> value = interval & OPEN_RETRY_INTERVAL_REG_MASK; >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> /* shift bar and set the OPEN_REJECT(RETRY) interval time of PHY 0 -3.*/ >> if (-1 == pm8001_bar4_shift(pm8001_ha, >> OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return; >> } >> for (i = 0; i < 4; i++) { >> @@ -504,7 +502,7 @@ static void mpi_set_open_retry_interval_reg(struct pm8001_hba_info *pm8001_ha, >> >> if (-1 == pm8001_bar4_shift(pm8001_ha, >> OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return; >> } >> for (i = 4; i < 8; i++) { >> @@ -513,7 +511,7 @@ static void mpi_set_open_retry_interval_reg(struct pm8001_hba_info *pm8001_ha, >> } >> /*set the shifted destination address to 0x0 to avoid error operation */ >> pm8001_bar4_shift(pm8001_ha, 0x0); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return; >> } >> >> @@ -768,11 +766,11 @@ static u32 soft_reset_ready_check(struct pm8001_hba_info *pm8001_ha) >> PM8001_INIT_DBG(pm8001_ha, >> pm8001_printk("Firmware is ready for reset .\n")); >> } else { >> - unsigned long flags; >> /* Trigger NMI twice via RB6 */ >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> if (-1 == pm8001_bar4_shift(pm8001_ha, RB6_ACCESS_REG)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> PM8001_FAIL_DBG(pm8001_ha, >> pm8001_printk("Shift Bar4 to 0x%x failed\n", >> RB6_ACCESS_REG)); >> @@ -798,10 +796,11 @@ static u32 soft_reset_ready_check(struct pm8001_hba_info *pm8001_ha) >> PM8001_FAIL_DBG(pm8001_ha, >> pm8001_printk("SCRATCH_PAD3 value = 0x%x\n", >> pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3))); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return -1; >> } >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } >> return 0; >> } >> @@ -818,7 +817,6 @@ pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) >> u32 max_wait_count; >> u32 regVal1, regVal2, regVal3; >> u32 signature = 0x252acbcd; /* for host scratch pad0 */ >> - unsigned long flags; >> >> /* step1: Check FW is ready for soft reset */ >> if (soft_reset_ready_check(pm8001_ha) != 0) { >> @@ -829,9 +827,9 @@ pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) >> /* step 2: clear NMI status register on AAP1 and IOP, write the same >> value to clear */ >> /* map 0x60000 to BAR4(0x20), BAR2(win) */ >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_AAP1_ADDR_BASE)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> PM8001_FAIL_DBG(pm8001_ha, >> pm8001_printk("Shift Bar4 to 0x%x failed\n", >> MBIC_AAP1_ADDR_BASE)); >> @@ -843,7 +841,7 @@ pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) >> pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP, 0x0); >> /* map 0x70000 to BAR4(0x20), BAR2(win) */ >> if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_IOP_ADDR_BASE)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> PM8001_FAIL_DBG(pm8001_ha, >> pm8001_printk("Shift Bar4 to 0x%x failed\n", >> MBIC_IOP_ADDR_BASE)); >> @@ -886,7 +884,7 @@ pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) >> /* read required registers for confirmming */ >> /* map 0x0700000 to BAR4(0x20), BAR2(win) */ >> if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> PM8001_FAIL_DBG(pm8001_ha, >> pm8001_printk("Shift Bar4 to 0x%x failed\n", >> GSM_ADDR_BASE)); >> @@ -953,7 +951,7 @@ pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) >> udelay(10); >> /* step 5-b: set GPIO-0 output control to tristate anyway */ >> if (-1 == pm8001_bar4_shift(pm8001_ha, GPIO_ADDR_BASE)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> PM8001_INIT_DBG(pm8001_ha, >> pm8001_printk("Shift Bar4 to 0x%x failed\n", >> GPIO_ADDR_BASE)); >> @@ -970,7 +968,7 @@ pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) >> /* Step 6: Reset the IOP and AAP1 */ >> /* map 0x00000 to BAR4(0x20), BAR2(win) */ >> if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> PM8001_FAIL_DBG(pm8001_ha, >> pm8001_printk("SPC Shift Bar4 to 0x%x failed\n", >> SPC_TOP_LEVEL_ADDR_BASE)); >> @@ -1008,7 +1006,7 @@ pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) >> /* step 11: reads and sets the GSM Configuration and Reset Register */ >> /* map 0x0700000 to BAR4(0x20), BAR2(win) */ >> if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> PM8001_FAIL_DBG(pm8001_ha, >> pm8001_printk("SPC Shift Bar4 to 0x%x failed\n", >> GSM_ADDR_BASE)); >> @@ -1062,7 +1060,7 @@ pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) >> /* step 13: bring the IOP and AAP1 out of reset */ >> /* map 0x00000 to BAR4(0x20), BAR2(win) */ >> if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> PM8001_FAIL_DBG(pm8001_ha, >> pm8001_printk("Shift Bar4 to 0x%x failed\n", >> SPC_TOP_LEVEL_ADDR_BASE)); >> @@ -1104,7 +1102,8 @@ pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) >> pm8001_printk("SCRATCH_PAD3 value = 0x%x\n", >> pm8001_cr32(pm8001_ha, 0, >> MSGU_SCRATCH_PAD_3))); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return -1; >> } >> >> @@ -1134,12 +1133,13 @@ pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) >> pm8001_printk("SCRATCH_PAD3 value = 0x%x\n", >> pm8001_cr32(pm8001_ha, 0, >> MSGU_SCRATCH_PAD_3))); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return -1; >> } >> } >> pm8001_bar4_shift(pm8001_ha, 0); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> >> PM8001_INIT_DBG(pm8001_ha, >> pm8001_printk("SPC soft reset Complete\n")); >> @@ -1517,18 +1517,19 @@ void pm8001_work_fn(struct work_struct *work) >> u32 tag; >> struct pm8001_ccb_info *ccb; >> struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha; >> - unsigned long flags, flags1; >> + unsigned long flags1; >> struct task_status_struct *ts; >> int i; >> >> if (pm8001_query_task(t) == TMF_RESP_FUNC_SUCC) >> break; /* Task still on lu */ >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> >> spin_lock_irqsave(&t->task_state_lock, flags1); >> if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) { >> spin_unlock_irqrestore(&t->task_state_lock, flags1); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> break; /* Task got completed by another */ >> } >> spin_unlock_irqrestore(&t->task_state_lock, flags1); >> @@ -1541,7 +1542,8 @@ void pm8001_work_fn(struct work_struct *work) >> break; >> } >> if (!ccb) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> break; /* Task got freed by another */ >> } >> ts = &t->task_status; >> @@ -1562,12 +1564,14 @@ void pm8001_work_fn(struct work_struct *work) >> " aborted by upper layer!\n", >> t, pw->handler, ts->resp, ts->stat)); >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> } else { >> spin_unlock_irqrestore(&t->task_state_lock, flags1); >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/* in order to force CPU ordering */ >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> } >> } break; >> @@ -1577,7 +1581,7 @@ void pm8001_work_fn(struct work_struct *work) >> u32 tag; >> struct pm8001_ccb_info *ccb; >> struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha; >> - unsigned long flags, flags1; >> + unsigned long flags1; >> int i, ret = 0; >> >> PM8001_IO_DBG(pm8001_ha, >> @@ -1600,13 +1604,14 @@ void pm8001_work_fn(struct work_struct *work) >> break; >> }); >> >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> >> spin_lock_irqsave(&t->task_state_lock, flags1); >> >> if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) { >> spin_unlock_irqrestore(&t->task_state_lock, flags1); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */ >> (void)pm8001_abort_task(t); >> break; /* Task got completed by another */ >> @@ -1622,7 +1627,8 @@ void pm8001_work_fn(struct work_struct *work) >> break; >> } >> if (!ccb) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */ >> (void)pm8001_abort_task(t); >> break; /* Task got freed by another */ >> @@ -1634,7 +1640,8 @@ void pm8001_work_fn(struct work_struct *work) >> switch (ret) { >> case TMF_RESP_FUNC_SUCC: /* task on lu */ >> ccb->open_retry = 1; /* Snub completion */ >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> ret = pm8001_abort_task(t); >> ccb->open_retry = 0; >> switch (ret) { >> @@ -1651,12 +1658,14 @@ void pm8001_work_fn(struct work_struct *work) >> break; >> >> case TMF_RESP_FUNC_COMPLETE: /* task not on lu */ >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> /* Do we need to abort the task locally? */ >> break; >> >> default: /* device misbehavior */ >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> ret = TMF_RESP_FUNC_FAILED; >> PM8001_IO_DBG(pm8001_ha, >> pm8001_printk("...Reset phy\n")); >> @@ -2504,9 +2513,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*in order to force CPU ordering*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2524,9 +2535,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2552,9 +2565,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/* ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2619,9 +2634,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2643,9 +2660,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2678,16 +2697,16 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> spin_unlock_irqrestore(&t->task_state_lock, flags); >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/* ditto */ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } else if (!t->uldd_task) { >> spin_unlock_irqrestore(&t->task_state_lock, flags); >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } >> } >> >> @@ -2798,9 +2817,11 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2913,16 +2934,16 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb) >> spin_unlock_irqrestore(&t->task_state_lock, flags); >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/* ditto */ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } else if (!t->uldd_task) { >> spin_unlock_irqrestore(&t->task_state_lock, flags); >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } >> } >> >> @@ -4194,9 +4215,8 @@ static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec) >> void *pMsg1 = NULL; >> u8 uninitialized_var(bc); >> u32 ret = MPI_IO_STATUS_FAIL; >> - unsigned long flags; >> >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> circularQ = &pm8001_ha->outbnd_q_tbl[vec]; >> do { >> ret = pm8001_mpi_msg_consume(pm8001_ha, circularQ, &pMsg1, &bc); >> @@ -4217,7 +4237,7 @@ static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec) >> break; >> } >> } while (1); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return ret; >> } >> >> @@ -4472,18 +4492,22 @@ static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha, >> flags); >> pm8001_ccb_task_free(pm8001_ha, task, ccb, tag); >> mb();/* ditto */ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> task->task_done(task); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return 0; >> } else if (!task->uldd_task) { >> spin_unlock_irqrestore(&task->task_state_lock, >> flags); >> pm8001_ccb_task_free(pm8001_ha, task, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> task->task_done(task); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return 0; >> } >> } >> diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c >> index f50ac44..eac1b81 100644 >> --- a/drivers/scsi/pm8001/pm8001_sas.c >> +++ b/drivers/scsi/pm8001/pm8001_sas.c >> @@ -166,7 +166,6 @@ int pm8001_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, >> struct pm8001_hba_info *pm8001_ha = NULL; >> struct sas_phy_linkrates *rates; >> DECLARE_COMPLETION_ONSTACK(completion); >> - unsigned long flags; >> pm8001_ha = sas_phy->ha->lldd_ha; >> pm8001_ha->phy[phy_id].enable_completion = &completion; >> switch (func) { >> @@ -211,11 +210,12 @@ int pm8001_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, >> PM8001_CHIP_DISP->phy_stop_req(pm8001_ha, phy_id); >> break; >> case PHY_FUNC_GET_EVENTS: >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> if (pm8001_ha->chip_id == chip_8001) { >> if (-1 == pm8001_bar4_shift(pm8001_ha, >> (phy_id < 4) ? 0x30000 : 0x40000)) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return -EINVAL; >> } >> } >> @@ -232,7 +232,7 @@ int pm8001_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, >> } >> if (pm8001_ha->chip_id == chip_8001) >> pm8001_bar4_shift(pm8001_ha, 0); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return 0; >> default: >> rc = -EOPNOTSUPP; >> @@ -369,7 +369,6 @@ static int pm8001_task_exec(struct sas_task *task, const int num, >> struct pm8001_ccb_info *ccb; >> u32 tag = 0xdeadbeef, rc, n_elem = 0; >> u32 n = num; >> - unsigned long flags = 0; >> >> if (!dev->port) { >> struct task_status_struct *tsm = &t->task_status; >> @@ -380,8 +379,8 @@ static int pm8001_task_exec(struct sas_task *task, const int num, >> return 0; >> } >> pm8001_ha = pm8001_find_ha_by_dev(task->dev); >> - PM8001_IO_DBG(pm8001_ha, pm8001_printk("pm8001_task_exec device \n ")); >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + PM8001_IO_DBG(pm8001_ha, pm8001_printk("pm8001_task_exec device\n")); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> do { >> dev = t->dev; >> pm8001_dev = dev->lldd_dev; >> @@ -392,9 +391,11 @@ static int pm8001_task_exec(struct sas_task *task, const int num, >> ts->resp = SAS_TASK_UNDELIVERED; >> ts->stat = SAS_PHY_DOWN; >> >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> if (n > 1) >> t = list_entry(t->list.next, >> struct sas_task, list); >> @@ -482,7 +483,7 @@ err_out: >> dma_unmap_sg(pm8001_ha->dev, t->scatter, n_elem, >> t->data_dir); >> out_done: >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return rc; >> } >> >> @@ -607,7 +608,6 @@ static void pm8001_free_dev(struct pm8001_device *pm8001_dev) >> */ >> static int pm8001_dev_found_notify(struct domain_device *dev) >> { >> - unsigned long flags = 0; >> int res = 0; >> struct pm8001_hba_info *pm8001_ha = NULL; >> struct domain_device *parent_dev = dev->parent; >> @@ -615,7 +615,7 @@ static int pm8001_dev_found_notify(struct domain_device *dev) >> DECLARE_COMPLETION_ONSTACK(completion); >> u32 flag = 0; >> pm8001_ha = pm8001_find_ha_by_dev(dev); >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> >> pm8001_device = pm8001_alloc_dev(pm8001_ha); >> if (!pm8001_device) { >> @@ -654,14 +654,14 @@ static int pm8001_dev_found_notify(struct domain_device *dev) >> } /*register this device to HBA*/ >> PM8001_DISC_DBG(pm8001_ha, pm8001_printk("Found device\n")); >> PM8001_CHIP_DISP->reg_dev_req(pm8001_ha, pm8001_device, flag); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> wait_for_completion(&completion); >> if (dev->dev_type == SAS_END_DEVICE) >> msleep(50); >> pm8001_ha->flags = PM8001F_RUN_TIME; >> return 0; >> found_out: >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return res; >> } >> >> @@ -864,13 +864,12 @@ ex_err: >> */ >> static void pm8001_dev_gone_notify(struct domain_device *dev) >> { >> - unsigned long flags = 0; >> u32 tag; >> struct pm8001_hba_info *pm8001_ha; >> struct pm8001_device *pm8001_dev = dev->lldd_dev; >> >> pm8001_ha = pm8001_find_ha_by_dev(dev); >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> pm8001_tag_alloc(pm8001_ha, &tag); >> if (pm8001_dev) { >> u32 device_id = pm8001_dev->device_id; >> @@ -879,10 +878,12 @@ static void pm8001_dev_gone_notify(struct domain_device *dev) >> pm8001_printk("found dev[%d:%x] is gone.\n", >> pm8001_dev->device_id, pm8001_dev->dev_type)); >> if (pm8001_dev->running_req) { >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev , >> dev, 1, 0); >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> } >> PM8001_CHIP_DISP->dereg_dev_req(pm8001_ha, device_id); >> pm8001_free_dev(pm8001_dev); >> @@ -891,7 +892,7 @@ static void pm8001_dev_gone_notify(struct domain_device *dev) >> pm8001_printk("Found dev has gone.\n")); >> } >> dev->lldd_dev = NULL; >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } >> >> void pm8001_dev_gone(struct domain_device *dev) >> @@ -918,12 +919,11 @@ void pm8001_open_reject_retry( >> struct pm8001_device *device_to_close) >> { >> int i; >> - unsigned long flags; >> >> if (pm8001_ha == NULL) >> return; >> >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> >> for (i = 0; i < PM8001_MAX_CCB; i++) { >> struct sas_task *task; >> @@ -973,13 +973,15 @@ void pm8001_open_reject_retry( >> flags1); >> pm8001_ccb_task_free(pm8001_ha, task, ccb, tag); >> mb();/* in order to force CPU ordering */ >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> task->task_done(task); >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> } >> } >> >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } >> >> /** >> diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h >> index 6c5fd5e..2b8065c 100644 >> --- a/drivers/scsi/pm8001/pm8001_sas.h >> +++ b/drivers/scsi/pm8001/pm8001_sas.h >> @@ -475,6 +475,7 @@ struct pm8001_hba_info { >> struct list_head list; >> unsigned long flags; >> spinlock_t lock;/* host-wide lock */ >> + unsigned long lock_flags; >> struct pci_dev *pdev;/* our device */ >> struct device *dev; >> struct pm8001_hba_memspace io_mem[6]; >> diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c >> index c950dc5..3ac024a 100644 >> --- a/drivers/scsi/pm8001/pm80xx_hwi.c >> +++ b/drivers/scsi/pm8001/pm80xx_hwi.c >> @@ -2177,9 +2177,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*in order to force CPU ordering*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2197,9 +2199,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2223,9 +2227,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/* ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2290,9 +2296,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2314,9 +2322,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2349,16 +2359,16 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) >> spin_unlock_irqrestore(&t->task_state_lock, flags); >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/* ditto */ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } else if (!t->uldd_task) { >> spin_unlock_irqrestore(&t->task_state_lock, flags); >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } >> } >> >> @@ -2472,9 +2482,11 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb) >> ts->stat = SAS_QUEUE_FULL; >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return; >> } >> break; >> @@ -2600,16 +2612,16 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb) >> spin_unlock_irqrestore(&t->task_state_lock, flags); >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/* ditto */ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } else if (!t->uldd_task) { >> spin_unlock_irqrestore(&t->task_state_lock, flags); >> pm8001_ccb_task_free(pm8001_ha, t, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> t->task_done(t); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> } >> } >> >> @@ -3705,9 +3717,8 @@ static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec) >> void *pMsg1 = NULL; >> u8 uninitialized_var(bc); >> u32 ret = MPI_IO_STATUS_FAIL; >> - unsigned long flags; >> >> - spin_lock_irqsave(&pm8001_ha->lock, flags); >> + spin_lock_irqsave(&pm8001_ha->lock, pm8001_ha->lock_flags); >> circularQ = &pm8001_ha->outbnd_q_tbl[vec]; >> do { >> ret = pm8001_mpi_msg_consume(pm8001_ha, circularQ, &pMsg1, &bc); >> @@ -3728,7 +3739,7 @@ static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec) >> break; >> } >> } while (1); >> - spin_unlock_irqrestore(&pm8001_ha->lock, flags); >> + spin_unlock_irqrestore(&pm8001_ha->lock, pm8001_ha->lock_flags); >> return ret; >> } >> >> @@ -4309,18 +4320,22 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha, >> flags); >> pm8001_ccb_task_free(pm8001_ha, task, ccb, tag); >> mb();/* ditto */ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> task->task_done(task); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return 0; >> } else if (!task->uldd_task) { >> spin_unlock_irqrestore(&task->task_state_lock, >> flags); >> pm8001_ccb_task_free(pm8001_ha, task, ccb, tag); >> mb();/*ditto*/ >> - spin_unlock_irq(&pm8001_ha->lock); >> + spin_unlock_irqrestore(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> task->task_done(task); >> - spin_lock_irq(&pm8001_ha->lock); >> + spin_lock_irqsave(&pm8001_ha->lock, >> + pm8001_ha->lock_flags); >> return 0; >> } >> } > -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html