Messages in this thread Patch in this message | | | From | Xiaofei Tan <> | Subject | [PATCH for-next 14/32] scsi: ibmvscsi: Replace spin_lock_irqsave with spin_lock in hard IRQ | Date | Sun, 7 Feb 2021 19:36:45 +0800 |
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It is redundant to do irqsave and irqrestore in hardIRQ context, where it has been in a irq-disabled context.
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com> --- drivers/scsi/ibmvscsi/ibmvfc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 755313b..9afe1b2 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -3604,12 +3604,11 @@ static struct ibmvfc_crq *ibmvfc_next_crq(struct ibmvfc_host *vhost) static irqreturn_t ibmvfc_interrupt(int irq, void *dev_instance) { struct ibmvfc_host *vhost = (struct ibmvfc_host *)dev_instance; - unsigned long flags; - spin_lock_irqsave(vhost->host->host_lock, flags); + spin_lock(vhost->host->host_lock); vio_disable_interrupts(to_vio_dev(vhost->dev)); tasklet_schedule(&vhost->tasklet); - spin_unlock_irqrestore(vhost->host->host_lock, flags); + spin_unlock(vhost->host->host_lock); return IRQ_HANDLED; } -- 2.8.1
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