linux-kernel - [PATCH net RESEND 2/3] net: enetc: Use IRQF_NO_AUTOEN flag in request

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Message-ID: <20240911094445.1922476-3-ruanjinjie@huawei.com>
Date: Wed, 11 Sep 2024 17:44:44 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <claudiu.manoil@....com>, <vladimir.oltean@....com>,
	<louis.peens@...igine.com>, <damien.lemoal@...nsource.wdc.com>,
	<set_pte_at@...look.com>, <mpe@...erman.id.au>, <horms@...nel.org>,
	<yinjun.zhang@...igine.com>, <ryno.swart@...igine.com>,
	<johannes.berg@...el.com>, <fei.qin@...igine.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <oss-drivers@...igine.com>
CC: <ruanjinjie@...wei.com>
Subject: [PATCH net RESEND 2/3] net: enetc: Use IRQF_NO_AUTOEN flag in request_irq()

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@...wei.com>
---
v1 -> RESEND
- Put wireless into another patch set.
---
 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 5c45f42232d3..f04f42ea60c0 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -2305,12 +2305,11 @@ 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);
-- 
2.34.1