From patchwork Mon Jan 31 10:56:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 538907 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A98CC433F5 for ; Mon, 31 Jan 2022 11:01:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1358547AbiAaLBw (ORCPT ); Mon, 31 Jan 2022 06:01:52 -0500 Received: from dfw.source.kernel.org ([139.178.84.217]:33372 "EHLO dfw.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358543AbiAaLAq (ORCPT ); Mon, 31 Jan 2022 06:00:46 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id AF73D60B2E; Mon, 31 Jan 2022 11:00:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 75F3EC340EF; Mon, 31 Jan 2022 11:00:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643626846; bh=UX7bfLZZjswaacQhiYiq56Uuh1Jos6QIbBnp3bN5WmQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XZFXv5B1EEgsavwjI/ucDADPBp6dkj8H+dKA61aGAlF73/gcAub7GhqQrABjqMbjZ VmKCAUuUS6fG5KKV5zUysbze21ZQycGq121K/CQY/w7SwljuV1dyC0jRJqRRtKO3nP 1qr9rrGmLkFA/PTQhXRf1MeF3u6v7HW9mGdae3m0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yufeng Mo , Guangbin Huang , "David S. Miller" , Sasha Levin Subject: [PATCH 5.4 58/64] net: hns3: handle empty unknown interrupt for VF Date: Mon, 31 Jan 2022 11:56:43 +0100 Message-Id: <20220131105217.631535565@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220131105215.644174521@linuxfoundation.org> References: <20220131105215.644174521@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Yufeng Mo [ Upstream commit 2f61353cd2f789a4229b6f5c1c24a40a613357bb ] Since some interrupt states may be cleared by hardware, the driver may receive an empty interrupt. Currently, the VF driver directly disables the vector0 interrupt in this case. As a result, the VF is unavailable. Therefore, the vector0 interrupt should be enabled in this case. Fixes: b90fcc5bd904 ("net: hns3: add reset handling for VF when doing Core/Global/IMP reset") Signed-off-by: Yufeng Mo Signed-off-by: Guangbin Huang Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index ce6a4e1965e1d..403c1b9cf6ab8 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -1970,8 +1970,7 @@ static irqreturn_t hclgevf_misc_irq_handle(int irq, void *data) break; } - if (event_cause != HCLGEVF_VECTOR0_EVENT_OTHER) - hclgevf_enable_vector(&hdev->misc_vector, true); + hclgevf_enable_vector(&hdev->misc_vector, true); return IRQ_HANDLED; }