Messages in this thread Patch in this message | | | From | cgel.zte@gmail ... | Subject | [PATCH] net: qede: Remove unnecessary synchronize_irq() before free_irq() | Date | Mon, 16 May 2022 08:22:51 +0000 |
| |
From: Minghao Chi <chi.minghao@zte.com.cn>
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.
Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> --- drivers/net/ethernet/qlogic/qede/qede_main.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c index b4e5a15e308b..f56b679adb4b 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -1916,7 +1916,6 @@ static void qede_sync_free_irqs(struct qede_dev *edev) for (i = 0; i < edev->int_info.used_cnt; i++) { if (edev->int_info.msix_cnt) { - synchronize_irq(edev->int_info.msix[i].vector); free_irq(edev->int_info.msix[i].vector, &edev->fp_array[i]); } else { -- 2.25.1
| |