From nobody Sat Nov 30 07:46:59 2024 Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190]) (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 E0190183CC8; Wed, 11 Sep 2024 09:35:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.190 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726047357; cv=none; b=VLJWuWhbQwjqfUI6fcswLX+Fwy/zNazppgHgiOWWY8FCFmMOo0pWeX9QpOauNeOwKOzRQyls+herfCKbn3s3LYSvLvsQrhGbXJy2NX0wITLMHzewvLIxHIrILgUwrsuw3QLuSIPtrqI+7GRnJEdJilFSrDFYHRwle16kj/OohKc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726047357; c=relaxed/simple; bh=8v4X2mR/K7wYuo7N7TApXzmz7OcsAcfPXqyy9IePGH0=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=RjTIaXKLSa4b+qUR/xLCpS1jii9uoB9V0N4SoN0+HId5RcGqti+KM4fU/GeFKI/EXD9Pyxm4i+P0Ei4s4AwtVce6Ddnx9OTS3gv7rgvyz15pWXdeYSTZpSt0nh3kDSzeFwq0L/mWUbInUNANWOLbWsLMBRYDZH4DxB9g6ya2888= 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=45.249.212.190 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 [172.19.163.44]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4X3b650dt8z20ng4; Wed, 11 Sep 2024 17:35:41 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 0111714010C; Wed, 11 Sep 2024 17:35:47 +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; Wed, 11 Sep 2024 17:35:46 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , CC: Subject: [PATCH net RESEND 3/3] nfp: Use IRQF_NO_AUTOEN flag in request_irq() Date: Wed, 11 Sep 2024 17:44:45 +0800 Message-ID: <20240911094445.1922476-4-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240911094445.1922476-1-ruanjinjie@huawei.com> References: <20240911094445.1922476-1-ruanjinjie@huawei.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemh500013.china.huawei.com (7.202.181.146) Content-Type: text/plain; charset="utf-8" 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. Reviewed-by: Louis Peens Signed-off-by: Jinjie Ruan --- v1 -> RESEND - Put wireless into another patch set. - Add reviewed-by. --- drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/= net/ethernet/netronome/nfp/nfp_net_common.c index 182ba0a8b095..6e0929af0f72 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -821,14 +821,13 @@ nfp_net_prepare_vector(struct nfp_net *nn, struct nfp= _net_r_vector *r_vec, =20 snprintf(r_vec->name, sizeof(r_vec->name), "%s-rxtx-%d", nfp_net_name(nn), idx); - err =3D request_irq(r_vec->irq_vector, r_vec->handler, 0, r_vec->name, - r_vec); + err =3D request_irq(r_vec->irq_vector, r_vec->handler, IRQF_NO_AUTOEN, + r_vec->name, r_vec); if (err) { nfp_net_napi_del(&nn->dp, r_vec); nn_err(nn, "Error requesting IRQ %d\n", r_vec->irq_vector); return err; } - disable_irq(r_vec->irq_vector); =20 irq_set_affinity_hint(r_vec->irq_vector, &r_vec->affinity_mask); =20 --=20 2.34.1