From patchwork Mon Sep 9 13:30:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 826931 Received: from szxga06-in.huawei.com (szxga06-in.huawei.com [45.249.212.32]) (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 71A6E1BA286; Mon, 9 Sep 2024 13:21:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.32 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725888104; cv=none; b=LFxyOiW6dHH8dpM1OY5tXM3GH1XgHHszejksAqqHwfAHSCA8u6iOgYZr7CWeU6FLaES2kY4EGKNJDDKqQPPMkmoZMewnnvflxyv6kKk876AmPcrVjDPEpAdiYJt5axJzQ3WSf2FDW1RXKQ1WEBek2uZvezCo/L35QQOKgbuNy/A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725888104; c=relaxed/simple; bh=y601in2hbLggRcDATiq6SPBqagAjG+jhatLQtvv2dI0=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=d4Or4NQwVB9ziInu/x1htSqY2BnufHO4/yaGz3IYVkKwNpDuduy2pjqu1GlxEevoUmfWY+T2WwOUfoKzOYUCEs2eRqwuv25cDU/MZzLleEZbhWyeEU+K1+19KB4y0Q9cpONxTKVYhdyVF8e8t190WMI5EE5lJeDoG/1m+BYtZAA= 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=45.249.212.32 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 [172.19.88.234]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4X2SCl2Z6Mz1xxBX; Mon, 9 Sep 2024 21:21:39 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id EC672140134; 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 3/7] nfp: Use IRQF_NO_AUTOEN flag in request_irq() Date: Mon, 9 Sep 2024 21:30:30 +0800 Message-ID: <20240909133034.1296930-4-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. Signed-off-by: Jinjie Ruan Signed-off-by: Louis Peens --- 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, snprintf(r_vec->name, sizeof(r_vec->name), "%s-rxtx-%d", nfp_net_name(nn), idx); - err = request_irq(r_vec->irq_vector, r_vec->handler, 0, r_vec->name, - r_vec); + err = 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); irq_set_affinity_hint(r_vec->irq_vector, &r_vec->affinity_mask);