[PATCH 9/9] scsi: bfad: move spin_lock_irqsave to spin_lock in interrupt handler

From: Tuo Cao
Date: Sun Aug 14 2022 - 02:45:44 EST


it is unnecessary to call spin_lock_irqsave in a interrupt handler.

Signed-off-by: Tuo Cao <91tuocao@xxxxxxxxx>
---
drivers/scsi/bfa/bfad.c | 20 +++++++++-----------
1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index e5aa982ffedc..3191377d543b 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1086,25 +1086,24 @@ bfad_intx(int irq, void *dev_id)
{
struct bfad_s *bfad = dev_id;
struct list_head doneq;
- unsigned long flags;
bfa_boolean_t rc;

- spin_lock_irqsave(&bfad->bfad_lock, flags);
+ spin_lock(&bfad->bfad_lock);
rc = bfa_intx(&bfad->bfa);
if (!rc) {
- spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ spin_unlock(&bfad->bfad_lock);
return IRQ_NONE;
}

bfa_comp_deq(&bfad->bfa, &doneq);
- spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ spin_unlock(&bfad->bfad_lock);

if (!list_empty(&doneq)) {
bfa_comp_process(&bfad->bfa, &doneq);

- spin_lock_irqsave(&bfad->bfad_lock, flags);
+ spin_lock(&bfad->bfad_lock);
bfa_comp_free(&bfad->bfa, &doneq);
- spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ spin_unlock(&bfad->bfad_lock);
}

return IRQ_HANDLED;
@@ -1117,20 +1116,19 @@ bfad_msix(int irq, void *dev_id)
struct bfad_msix_s *vec = dev_id;
struct bfad_s *bfad = vec->bfad;
struct list_head doneq;
- unsigned long flags;

- spin_lock_irqsave(&bfad->bfad_lock, flags);
+ spin_lock(&bfad->bfad_lock);

bfa_msix(&bfad->bfa, vec->msix.entry);
bfa_comp_deq(&bfad->bfa, &doneq);
- spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ spin_unlock(&bfad->bfad_lock);

if (!list_empty(&doneq)) {
bfa_comp_process(&bfad->bfa, &doneq);

- spin_lock_irqsave(&bfad->bfad_lock, flags);
+ spin_lock(&bfad->bfad_lock);
bfa_comp_free(&bfad->bfa, &doneq);
- spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ spin_unlock(&bfad->bfad_lock);
}

return IRQ_HANDLED;
--
2.17.1