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dmaengine: idxd: Remove unnecessary synchronize_irq() before free_irq() 

Calling synchronize_irq() right before free_irq() is quite useless. On one
hand the IRQ can easily fire again before free_irq() is entered, on the
other hand free_irq() itself calls synchronize_irq() internally (in a race
condition free way), before any state associated with the IRQ is freed.

Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Link: https://lore.kernel.org/r/20220516115412.1651772-1-chi.minghao@zte.com.cn
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Minghao Chi 2022-05-16 11:54:12 +00:00 committed by Vinod Koul
parent 2112b8f4fb
commit 411dccf9d2
1 changed files with 0 additions and 1 deletions
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1
drivers/dma/idxd/device.c
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@ -1179,7 +1179,6 @@ void idxd_wq_free_irq(struct idxd_wq *wq)
if (wq->type != IDXD_WQT_KERNEL)
return;
synchronize_irq(ie->vector);
free_irq(ie->vector, ie);
idxd_flush_pending_descs(ie);
if (idxd->request_int_handles)