[PATCH 5.10 086/518] net: enetc: Use IRQF_NO_AUTOEN flag in request_irq()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>

[ Upstream commit 799a9225997799f7b1b579bc50a93b78b4fb2a01 ]

disable_irq() after request_irq() still has a time gap in which
interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will
disable IRQ auto-enable when request IRQ.

Fixes: bbb96dc7fa1a ("enetc: Factor out the traffic start/stop procedures")
Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
Link: https://patch.msgid.link/20240911094445.1922476-3-ruanjinjie@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/freescale/enetc/enetc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index 5f9603d4c0493..18c8621246677 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -1333,12 +1333,11 @@ static int enetc_setup_irqs(struct enetc_ndev_priv *priv)
 
 		snprintf(v->name, sizeof(v->name), "%s-rxtx%d",
 			 priv->ndev->name, i);
-		err = request_irq(irq, enetc_msix, 0, v->name, v);
+		err = request_irq(irq, enetc_msix, IRQF_NO_AUTOEN, v->name, v);
 		if (err) {
 			dev_err(priv->dev, "request_irq() failed!\n");
 			goto irq_err;
 		}
-		disable_irq(irq);
 
 		v->tbier_base = hw->reg + ENETC_BDR(TX, 0, ENETC_TBIER);
 		v->rbier = hw->reg + ENETC_BDR(RX, i, ENETC_RBIER);
-- 
2.43.0







[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux