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authorWeihang Li <liweihang@huawei.com>2021-02-05 16:37:58 +0800
committerJason Gunthorpe <jgg@nvidia.com>2021-02-05 12:03:07 -0400
commitb53005d66bb0c3939790d89702333f89ce556c5b (patch)
treeecf6f3327d395ca59c0d84ab2fa0b4eac34ef2c7 /drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
parentIB/mlx5: Support default partition key for representor port (diff)
downloadlinux-dev-b53005d66bb0c3939790d89702333f89ce556c5b.tar.xz
linux-dev-b53005d66bb0c3939790d89702333f89ce556c5b.zip
RDMA/pvrdma: Replace spin_lock_irqsave with spin_lock in hard IRQ
There is no need to do irqsave and irqrestore in context of hard IRQ. Link: https://lore.kernel.org/r/1612514278-49220-1-git-send-email-liweihang@huawei.com Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c')
-rw-r--r--drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
index 00a330909bb3..4b6019e7de67 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
@@ -474,7 +474,6 @@ static irqreturn_t pvrdma_intrx_handler(int irq, void *dev_id)
int ring_slots = (dev->dsr->cq_ring_pages.num_pages - 1) * PAGE_SIZE /
sizeof(struct pvrdma_cqne);
unsigned int head;
- unsigned long flags;
dev_dbg(&dev->pdev->dev, "interrupt x (completion) handler\n");
@@ -483,11 +482,11 @@ static irqreturn_t pvrdma_intrx_handler(int irq, void *dev_id)
struct pvrdma_cq *cq;
cqne = get_cqne(dev, head);
- spin_lock_irqsave(&dev->cq_tbl_lock, flags);
+ spin_lock(&dev->cq_tbl_lock);
cq = dev->cq_tbl[cqne->info % dev->dsr->caps.max_cq];
if (cq)
refcount_inc(&cq->refcnt);
- spin_unlock_irqrestore(&dev->cq_tbl_lock, flags);
+ spin_unlock(&dev->cq_tbl_lock);
if (cq && cq->ibcq.comp_handler)
cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);