Messages in this thread Patch in this message | | | From | cgel.zte@gmail ... | Subject | [PATCH] qed: Remove unnecessary synchronize_irq() before free_irq() | Date | Mon, 16 May 2022 07:26:46 +0000 |
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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/qed/qed_main.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c index c5003fa1a25e..c91898be7c03 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_main.c +++ b/drivers/net/ethernet/qlogic/qed/qed_main.c @@ -823,7 +823,6 @@ static void qed_slowpath_irq_free(struct qed_dev *cdev) for_each_hwfn(cdev, i) { if (!cdev->hwfns[i].b_int_requested) break; - synchronize_irq(cdev->int_params.msix_table[i].vector); free_irq(cdev->int_params.msix_table[i].vector, &cdev->hwfns[i].sp_dpc); } -- 2.25.1
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