net: enetc: Use IRQF_NO_AUTOEN flag in request_irq()

[ 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@huawei.com>
Link: https://patch.msgid.link/20240911094445.1922476-3-ruanjinjie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index 5f9603d4c0493ceb44bef26eb96db167e94c66b4..18c8621246677678b7835e7f4803027a5c63711e 100644 (file)
--- 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);