[PATCH kernel-4.19 1/2] scsi: hisi_sas: use threaded irq to process CQ interrupts
From: Yang Xingui <yangxingui@huawei.com> mainline inclusion from mainline-v5.10-rc4 commit 81f338e9709d category: bugfix bugzilla: NA CVE: NA Currently IRQ_EFFECTIVE_AFF_MASK is enabled for ARM_GIC and ARM_GIC3, so it only allows a single target CPU in the affinity mask to process interrupts and also interrupt thread, and the performance of using threaded irq is almost the same as tasklet. But if the config is not enabled, the interrupt thread will be allowed all the CPUs in the affinity mask. At that situation it improves the performance (about 20%). Note: IRQ_EFFECTIVE_AFF_MASK is configured differently for different architecture chip, and it seems to be better to make it be configured easily. Link: https://lore.kernel.org/r/1579522957-4393-2-git-send-email-john.garry@huawei... Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Yang Xingui <yangxingui@huawei.com> Reviewed-by: kangfenglong <kangfenglong@huawei.com> Reviewed-by: ouyangdelong < ouyangdelong@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/scsi/hisi_sas/hisi_sas.h | 4 ++-- drivers/scsi/hisi_sas/hisi_sas_main.c | 22 +++++++++--------- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 28 ++++++++-------------- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 32 ++++++++++++-------------- 4 files changed, 38 insertions(+), 48 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index 80cd8870477b4..eae0e533ce7fc 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -173,9 +173,9 @@ struct hisi_sas_port { struct hisi_sas_cq { struct hisi_hba *hisi_hba; - struct tasklet_struct tasklet; int rd_point; int id; + int irq_no; }; struct hisi_sas_dq { @@ -591,7 +591,7 @@ extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, extern void hisi_sas_init_mem(struct hisi_hba *hisi_hba); extern void hisi_sas_rst_work_handler(struct work_struct *work); extern void hisi_sas_sync_rst_work_handler(struct work_struct *work); -extern void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba); +extern void hisi_sas_sync_irqs(struct hisi_hba *hisi_hba); extern bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy, enum hisi_sas_phy_event event); extern void hisi_sas_release_tasks(struct hisi_hba *hisi_hba); diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 902893dfaacc2..6138e5240c347 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -1248,10 +1248,10 @@ static int hisi_sas_exec_internal_tmf_task(struct domain_device *device, struct hisi_sas_cq *cq = &hisi_hba->cq[slot->dlvry_queue]; /* - * flush tasklet to avoid free'ing task + * sync irq to avoid free'ing task * before using task in IO completion */ - tasklet_kill(&cq->tasklet); + synchronize_irq(cq->irq_no); slot->task = NULL; } @@ -1660,11 +1660,11 @@ static int hisi_sas_abort_task(struct sas_task *task) if (slot) { /* - * flush tasklet to avoid free'ing task + * sync irq to avoid free'ing task * before using task in IO completion */ cq = &hisi_hba->cq[slot->dlvry_queue]; - tasklet_kill(&cq->tasklet); + synchronize_irq(cq->irq_no); } spin_unlock_irqrestore(&task->task_state_lock, flags); rc = TMF_RESP_FUNC_COMPLETE; @@ -1727,10 +1727,10 @@ static int hisi_sas_abort_task(struct sas_task *task) if (((rc < 0) || (rc == TMF_RESP_FUNC_FAILED)) && task->lldd_task) { /* - * flush tasklet to avoid free'ing task + * sync irq to avoid free'ing task * before using task in IO completion */ - tasklet_kill(&cq->tasklet); + synchronize_irq(cq->irq_no); slot->task = NULL; } } @@ -2103,10 +2103,10 @@ _hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba, struct hisi_sas_cq *cq = &hisi_hba->cq[slot->dlvry_queue]; /* - * flush tasklet to avoid free'ing task + * sync irq to avoid free'ing task * before using task in IO completion */ - tasklet_kill(&cq->tasklet); + synchronize_irq(cq->irq_no); slot->task = NULL; } dev_err(dev, "internal task abort: timeout and not done.\n"); @@ -2262,17 +2262,17 @@ void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy) } EXPORT_SYMBOL_GPL(hisi_sas_phy_down); -void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba) +void hisi_sas_sync_irqs(struct hisi_hba *hisi_hba) { int i; for (i = 0; i < hisi_hba->nvecs; i++) { struct hisi_sas_cq *cq = &hisi_hba->cq[i]; - tasklet_kill(&cq->tasklet); + synchronize_irq(cq->irq_no); } } -EXPORT_SYMBOL_GPL(hisi_sas_kill_tasklets); +EXPORT_SYMBOL_GPL(hisi_sas_sync_irqs); int hisi_sas_host_reset(struct Scsi_Host *shost, int reset_type) { diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index 61ff065e5d9b8..fa4233454dccb 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -3148,9 +3148,9 @@ static irqreturn_t fatal_axi_int_v2_hw(int irq_no, void *p) return IRQ_HANDLED; } -static void cq_tasklet_v2_hw(unsigned long val) +static irqreturn_t cq_thread_v2_hw(int irq_no, void *p) { - struct hisi_sas_cq *cq = (struct hisi_sas_cq *)val; + struct hisi_sas_cq *cq = p; struct hisi_hba *hisi_hba = cq->hisi_hba; struct hisi_sas_slot *slot; struct hisi_sas_itct *itct; @@ -3212,6 +3212,8 @@ static void cq_tasklet_v2_hw(unsigned long val) /* update rd_point */ cq->rd_point = rd_point; hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point); + + return IRQ_HANDLED; } static irqreturn_t cq_interrupt_v2_hw(int irq_no, void *p) @@ -3222,9 +3224,7 @@ static irqreturn_t cq_interrupt_v2_hw(int irq_no, void *p) hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue); - tasklet_schedule(&cq->tasklet); - - return IRQ_HANDLED; + return IRQ_WAKE_THREAD; } static irqreturn_t sata_int_v2_hw(int irq_no, void *p) @@ -3394,11 +3394,11 @@ static int interrupt_init_v2_hw(struct hisi_hba *hisi_hba) for (queue_no = 0; queue_no < hisi_hba->queue_count; queue_no++) { struct hisi_sas_cq *cq = &hisi_hba->cq[queue_no]; - struct tasklet_struct *t = &cq->tasklet; - - irq = irq_map[queue_no + 96]; - rc = devm_request_irq(dev, irq, cq_interrupt_v2_hw, 0, - DRV_NAME " cq", cq); + cq->irq_no = irq_map[queue_no + 96]; + rc = devm_request_threaded_irq(dev, cq->irq_no, + cq_interrupt_v2_hw, + cq_thread_v2_hw, IRQF_ONESHOT, + DRV_NAME " cq", cq); if (rc) { dev_err(dev, "irq init: could not request cq interrupt %d, rc=%d\n", @@ -3406,7 +3406,6 @@ static int interrupt_init_v2_hw(struct hisi_hba *hisi_hba) rc = -ENOENT; goto free_cq_int_irqs; } - tasklet_init(t, cq_tasklet_v2_hw, (unsigned long)cq); } hisi_hba->nvecs = hisi_hba->queue_count; @@ -3418,7 +3417,6 @@ static int interrupt_init_v2_hw(struct hisi_hba *hisi_hba) struct hisi_sas_cq *cq = &hisi_hba->cq[k]; free_irq(irq_map[k + 96], cq); - tasklet_kill(&cq->tasklet); } free_fatal_int_irqs: for (k = 0; k < fatal_no; k++) @@ -3487,7 +3485,6 @@ static int soft_reset_v2_hw(struct hisi_hba *hisi_hba) interrupt_disable_v2_hw(hisi_hba); hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0x0); - hisi_sas_kill_tasklets(hisi_hba); hisi_sas_stop_phys(hisi_hba); @@ -3660,11 +3657,6 @@ static int hisi_sas_v2_probe(struct platform_device *pdev) static int hisi_sas_v2_remove(struct platform_device *pdev) { - struct sas_ha_struct *sha = platform_get_drvdata(pdev); - struct hisi_hba *hisi_hba = sha->lldd_ha; - - hisi_sas_kill_tasklets(hisi_hba); - return hisi_sas_remove(pdev); } diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index b38aa8d0a2242..a9f53dbb91679 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -2506,9 +2506,9 @@ slot_complete_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot) return sts; } -static void cq_tasklet_v3_hw(unsigned long val) +static irqreturn_t cq_thread_v3_hw(int irq_no, void *p) { - struct hisi_sas_cq *cq = (struct hisi_sas_cq *)val; + struct hisi_sas_cq *cq = p; struct hisi_hba *hisi_hba = cq->hisi_hba; struct hisi_sas_slot *slot; struct hisi_sas_complete_v3_hdr *complete_queue; @@ -2545,6 +2545,8 @@ static void cq_tasklet_v3_hw(unsigned long val) hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (NEXT_DQCQ_REG_OFF * queue), rd_point); + + return IRQ_HANDLED; } static irqreturn_t cq_interrupt_v3_hw(int irq_no, void *p) @@ -2555,9 +2557,7 @@ static irqreturn_t cq_interrupt_v3_hw(int irq_no, void *p) hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue); - tasklet_schedule(&cq->tasklet); - - return IRQ_HANDLED; + return IRQ_WAKE_THREAD; } static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba) @@ -2626,17 +2626,19 @@ static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba) goto free_chnl_interrupt; } - /* Init tasklets for cq only */ for (i = 0; i < hisi_hba->nvecs; i++) { struct hisi_sas_cq *cq = &hisi_hba->cq[i]; - struct tasklet_struct *t = &cq->tasklet; int nr = hisi_sas_intr_conv ? PCI_IRQ_CQ_BASE : PCI_IRQ_CQ_BASE + i; - unsigned long irqflags = hisi_sas_intr_conv ? IRQF_SHARED : 0; - - rc = devm_request_irq(dev, pci_irq_vector(pdev, nr), - cq_interrupt_v3_hw, irqflags, - DRV_NAME " cq", cq); + unsigned long irqflags = hisi_sas_intr_conv ? IRQF_SHARED : + IRQF_ONESHOT; + + cq->irq_no = pci_irq_vector(pdev, nr); + rc = devm_request_threaded_irq(dev, cq->irq_no, + cq_interrupt_v3_hw, + cq_thread_v3_hw, + irqflags, + DRV_NAME " cq", cq); if (rc) { dev_err(dev, "could not request cq%d interrupt, rc=%d\n", @@ -2644,8 +2646,6 @@ static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba) rc = -ENOENT; goto free_cq_irqs; } - - tasklet_init(t, cq_tasklet_v3_hw, (uintptr_t)cq); } return 0; @@ -2768,7 +2768,6 @@ static int disable_host_v3_hw(struct hisi_hba *hisi_hba) interrupt_disable_v3_hw(hisi_hba); hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0x0); - hisi_sas_kill_tasklets(hisi_hba); hisi_sas_stop_phys(hisi_hba); @@ -3121,7 +3120,7 @@ static void debugfs_snapshot_prepare_v3_hw(struct hisi_hba *hisi_hba) if (wait_cmds_complete_timeout_v3_hw(hisi_hba, 100, 5000) == -ETIMEDOUT) dev_dbg(dev, "Wait commands complete timeout!\n"); - hisi_sas_kill_tasklets(hisi_hba); + hisi_sas_sync_irqs(hisi_hba); } static void debugfs_snapshot_restore_v3_hw(struct hisi_hba *hisi_hba) @@ -3509,7 +3508,6 @@ static void hisi_sas_v3_remove(struct pci_dev *pdev) sas_remove_host(sha->core.shost); hisi_sas_v3_destroy_irqs(pdev, hisi_hba); - hisi_sas_kill_tasklets(hisi_hba); pci_release_regions(pdev); pci_disable_device(pdev); hisi_sas_free(hisi_hba); -- 2.25.1
From: Yang Xingui <yangxingui@huawei.com> mainline inclusion from mainline-v5.10-rc4 commit e9dc5e11c97e category: bugfix bugzilla: NA CVE: NA After changing tasklet to workqueue or threaded irq, some critical resources are only used on threads (not in interrupt or bottom half of interrupt), so replace spin_lock_irqsave/spin_unlock_restore with spin_lock/spin_unlock to protect those critical resources. Link: https://lore.kernel.org/r/1579522957-4393-3-git-send-email-john.garry@huawei... Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Yang Xingui <yangxingui@huawei.com> Reviewed-by: kangfenglong <kangfenglong@huawei.com> Reviewed-by: ouyangdelong < ouyangdelong@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/scsi/hisi_sas/hisi_sas_main.c | 50 ++++++++++++-------------- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 12 +++---- 2 files changed, 27 insertions(+), 35 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 6138e5240c347..f944371ac3133 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -172,13 +172,11 @@ static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx) static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx) { - unsigned long flags; - if (hisi_hba->hw->slot_index_alloc || (slot_idx >= hisi_hba->hw->max_command_entries - HISI_SAS_RESERVED_IPTT_CNT)) { - spin_lock_irqsave(&hisi_hba->lock, flags); + spin_lock(&hisi_hba->lock); hisi_sas_slot_index_clear(hisi_hba, slot_idx); - spin_unlock_irqrestore(&hisi_hba->lock, flags); + spin_unlock(&hisi_hba->lock); } } @@ -194,13 +192,12 @@ static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba, { int index; void *bitmap = hisi_hba->slot_index_tags; - unsigned long flags; if (scsi_cmnd) { return scsi_cmnd->request->tag; } - spin_lock_irqsave(&hisi_hba->lock, flags); + spin_lock(&hisi_hba->lock); index = find_next_zero_bit(bitmap, hisi_hba->slot_index_count, hisi_hba->last_slot_index + 1); if (index >= hisi_hba->slot_index_count) { @@ -209,13 +206,13 @@ static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba, hisi_hba->hw->max_command_entries - HISI_SAS_RESERVED_IPTT_CNT); if (index >= hisi_hba->slot_index_count) { - spin_unlock_irqrestore(&hisi_hba->lock, flags); + spin_unlock(&hisi_hba->lock); return -SAS_QUEUE_FULL; } } hisi_sas_slot_index_set(hisi_hba, index); hisi_hba->last_slot_index = index; - spin_unlock_irqrestore(&hisi_hba->lock, flags); + spin_unlock(&hisi_hba->lock); return index; } @@ -231,7 +228,6 @@ static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba) void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, struct hisi_sas_slot *slot) { - unsigned long flags; int device_id = slot->device_id; struct hisi_sas_device *sas_dev = &hisi_hba->devices[device_id]; @@ -260,9 +256,9 @@ void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, } } - spin_lock_irqsave(&sas_dev->lock, flags); + spin_lock(&sas_dev->lock); list_del_init(&slot->entry); - spin_unlock_irqrestore(&sas_dev->lock, flags); + spin_unlock(&sas_dev->lock); memset(slot, 0, offsetof(struct hisi_sas_slot, buf)); @@ -514,14 +510,14 @@ static int hisi_sas_task_prep(struct sas_task *task, slot_idx = rc; slot = &hisi_hba->slot_info[slot_idx]; - spin_lock_irqsave(&dq->lock, flags); + spin_lock(&dq->lock); wr_q_index = dq->wr_point; dq->wr_point = (dq->wr_point + 1) % HISI_SAS_QUEUE_SLOTS; list_add_tail(&slot->delivery, &dq->list); - spin_unlock_irqrestore(&dq->lock, flags); - spin_lock_irqsave(&sas_dev->lock, flags); + spin_unlock(&dq->lock); + spin_lock(&sas_dev->lock); list_add_tail(&slot->entry, &sas_dev->list); - spin_unlock_irqrestore(&sas_dev->lock, flags); + spin_unlock(&sas_dev->lock); dlvry_queue = dq->id; dlvry_queue_slot = wr_q_index; @@ -587,7 +583,6 @@ static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, { u32 rc; u32 pass = 0; - unsigned long flags; struct hisi_hba *hisi_hba; struct device *dev; struct domain_device *device = task->dev; @@ -621,9 +616,9 @@ static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, dev_err(dev, "task exec: failed[%d]!\n", rc); if (likely(pass)) { - spin_lock_irqsave(&dq->lock, flags); + spin_lock(&dq->lock); hisi_hba->hw->start_delivery(dq); - spin_unlock_irqrestore(&dq->lock, flags); + spin_unlock(&dq->lock); } return rc; @@ -674,12 +669,11 @@ static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device) { struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); struct hisi_sas_device *sas_dev = NULL; - unsigned long flags; int first = (hisi_hba->last_dev_id + 1) % HISI_SAS_MAX_DEVICES; int dev_id; int i; - spin_lock_irqsave(&hisi_hba->lock, flags); + spin_lock(&hisi_hba->lock); for (i = first; i < first + HISI_SAS_MAX_DEVICES; i++) { dev_id = i % HISI_SAS_MAX_DEVICES; if (hisi_hba->devices[dev_id].dev_type == SAS_PHY_UNUSED) { @@ -700,7 +694,7 @@ static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device) } if (sas_dev) hisi_hba->last_dev_id = i; - spin_unlock_irqrestore(&hisi_hba->lock, flags); + spin_unlock(&hisi_hba->lock); return sas_dev; } @@ -1976,7 +1970,7 @@ hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, struct asd_sas_port *sas_port = device->port; struct hisi_sas_cmd_hdr *cmd_hdr_base; int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; - unsigned long flags, flags_dq = 0; + unsigned long flags; int wr_q_index; if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) @@ -1995,14 +1989,14 @@ hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, slot_idx = rc; slot = &hisi_hba->slot_info[slot_idx]; - spin_lock_irqsave(&dq->lock, flags_dq); + spin_lock(&dq->lock); wr_q_index = dq->wr_point; dq->wr_point = (dq->wr_point + 1) % HISI_SAS_QUEUE_SLOTS; list_add_tail(&slot->delivery, &dq->list); - spin_unlock_irqrestore(&dq->lock, flags_dq); - spin_lock_irqsave(&sas_dev->lock, flags); + spin_unlock(&dq->lock); + spin_lock(&sas_dev->lock); list_add_tail(&slot->entry, &sas_dev->list); - spin_unlock_irqrestore(&sas_dev->lock, flags); + spin_unlock(&sas_dev->lock); dlvry_queue = dq->id; dlvry_queue_slot = wr_q_index; @@ -2031,9 +2025,9 @@ hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, spin_unlock_irqrestore(&task->task_state_lock, flags); WRITE_ONCE(slot->ready, 1); /* send abort command to the chip */ - spin_lock_irqsave(&dq->lock, flags); + spin_lock(&dq->lock); hisi_hba->hw->start_delivery(dq); - spin_unlock_irqrestore(&dq->lock, flags); + spin_unlock(&dq->lock); return 0; diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index fa4233454dccb..730191e7f55b8 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -778,7 +778,6 @@ slot_index_alloc_quirk_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_device *sas_dev = device->lldd_dev; int sata_idx = sas_dev->sata_idx; int start, end; - unsigned long flags; if (!sata_dev) { /* @@ -802,12 +801,12 @@ slot_index_alloc_quirk_v2_hw(struct hisi_hba *hisi_hba, end = 64 * (sata_idx + 2); } - spin_lock_irqsave(&hisi_hba->lock, flags); + spin_lock(&hisi_hba->lock); while (1) { start = find_next_zero_bit(bitmap, hisi_hba->slot_index_count, start); if (start >= end) { - spin_unlock_irqrestore(&hisi_hba->lock, flags); + spin_unlock(&hisi_hba->lock); return -SAS_QUEUE_FULL; } /* @@ -819,7 +818,7 @@ slot_index_alloc_quirk_v2_hw(struct hisi_hba *hisi_hba, } set_bit(start, bitmap); - spin_unlock_irqrestore(&hisi_hba->lock, flags); + spin_unlock(&hisi_hba->lock); return start; } @@ -848,9 +847,8 @@ hisi_sas_device *alloc_dev_quirk_v2_hw(struct domain_device *device) struct hisi_sas_device *sas_dev = NULL; int i, sata_dev = dev_is_sata(device); int sata_idx = -1; - unsigned long flags; - spin_lock_irqsave(&hisi_hba->lock, flags); + spin_lock(&hisi_hba->lock); if (sata_dev) if (!sata_index_alloc_v2_hw(hisi_hba, &sata_idx)) @@ -881,7 +879,7 @@ hisi_sas_device *alloc_dev_quirk_v2_hw(struct domain_device *device) } out: - spin_unlock_irqrestore(&hisi_hba->lock, flags); + spin_unlock(&hisi_hba->lock); return sas_dev; } -- 2.25.1
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Yang Yingliang