diff options
| author | John Garry <john.garry@huawei.com> | 2021-12-15 17:37:34 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-12-17 06:59:57 +0300 |
| commit | 0e4620856b89335426a17904933a92346ee4599d (patch) | |
| tree | 7c55a7fb3ee69067b882de43ee5362b152e208a1 /drivers/scsi/hisi_sas | |
| parent | efac162a4e4dc4cebcc658e02676821ca834b56c (diff) | |
| download | linux-0e4620856b89335426a17904933a92346ee4599d.tar.xz | |
scsi: hisi_sas: Start delivery hisi_sas_task_exec() directly
Currently we start delivery of commands to the DQ after returning from
hisi_sas_task_exec() with success.
Let's just start delivery directly in that function without having to check
if some local variable is set.
Link: https://lore.kernel.org/r/1639579061-179473-2-git-send-email-john.garry@huawei.com
Reviewed-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>
Diffstat (limited to 'drivers/scsi/hisi_sas')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas_main.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 889c36fa9309..0137ce7c544e 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -397,8 +397,7 @@ err_out_dif_dma_unmap: static int hisi_sas_task_prep(struct sas_task *task, struct hisi_sas_dq **dq_pointer, - bool is_tmf, struct hisi_sas_tmf_task *tmf, - int *pass) + bool is_tmf, struct hisi_sas_tmf_task *tmf) { struct domain_device *device = task->dev; struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); @@ -536,9 +535,12 @@ static int hisi_sas_task_prep(struct sas_task *task, task->task_state_flags |= SAS_TASK_AT_INITIATOR; spin_unlock_irqrestore(&task->task_state_lock, flags); - ++(*pass); WRITE_ONCE(slot->ready, 1); + spin_lock(&dq->lock); + hisi_hba->hw->start_delivery(dq); + spin_unlock(&dq->lock); + return 0; err_out_dif_dma_unmap: @@ -556,7 +558,6 @@ static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, bool is_tmf, struct hisi_sas_tmf_task *tmf) { u32 rc; - u32 pass = 0; struct hisi_hba *hisi_hba; struct device *dev; struct domain_device *device = task->dev; @@ -589,16 +590,10 @@ static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, } /* protect task_prep and start_delivery sequence */ - rc = hisi_sas_task_prep(task, &dq, is_tmf, tmf, &pass); + rc = hisi_sas_task_prep(task, &dq, is_tmf, tmf); if (rc) dev_err(dev, "task exec: failed[%d]!\n", rc); - if (likely(pass)) { - spin_lock(&dq->lock); - hisi_hba->hw->start_delivery(dq); - spin_unlock(&dq->lock); - } - return rc; } |