From patchwork Mon Sep 9 13:30:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13797023 X-Patchwork-Delegate: johannes@sipsolutions.net Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7EF5B1B86E6; Mon, 9 Sep 2024 13:21:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.189 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725888105; cv=none; b=V5Wn0Pwunj2v3Sb6zy0JMI8D84eGk971jc+bt2iNZ6cXf+LvubpC4LvuHRS8DUCZFkpqhwrM7thcq1xPKogcstEV0zdeCBplEsomlYqwibnbhL2PByln2frZW+6cId6QAZWJWQFAwJyELb0wuMDJ3ZKpCR5QXkaU529OsyPKo8c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725888105; c=relaxed/simple; bh=14G2yxnR16Xq95zsXhnuAQ+zX26+M91rNzW+wVNNaKo=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=BWwdwqbOoABZQhYlsxJEugwUQ7OYjRwggEo7WWPONy9NM59Gm+UeNXV40v8erFEPEilSpUVMhov0R2lVKipEW/Xm3IF4AZtVdcbqLhATmSJk2cLGnLVEk6vp8jOcjh/m51Rwgk4Im9PMCKvw+h/nIBEUJYqjv+9gxPA+uqTwFbs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.189 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.88.105]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4X2SCh0JQtz69Ns; Mon, 9 Sep 2024 21:21:36 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 2490B1402CF; Mon, 9 Sep 2024 21:21:40 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemh500013.china.huawei.com (7.202.181.146) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 9 Sep 2024 21:21:39 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH 2/7] net: enetc: Use IRQF_NO_AUTOEN flag in request_irq() Date: Mon, 9 Sep 2024 21:30:29 +0800 Message-ID: <20240909133034.1296930-3-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240909133034.1296930-1-ruanjinjie@huawei.com> References: <20240909133034.1296930-1-ruanjinjie@huawei.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemh500013.china.huawei.com (7.202.181.146) 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 --- 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);