From mboxrd@z Thu Jan 1 00:00:00 1970 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 8B847C433EF for ; Mon, 31 Jan 2022 11:50:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350469AbiAaLun (ORCPT ); Mon, 31 Jan 2022 06:50:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358889AbiAaLkb (ORCPT ); Mon, 31 Jan 2022 06:40:31 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98A08C02B759; Mon, 31 Jan 2022 03:26:01 -0800 (PST) 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 2361C61207; Mon, 31 Jan 2022 11:26:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D95F2C340E8; Mon, 31 Jan 2022 11:25:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643628360; bh=ndc/QEHzXBjo0Z3px9sIrvoNwv0d3Hm942zQU65+mHE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lfBrcNoYuf1z0zPSBkeDfOooWdXU7JPfJrTbASliLz/QPMTmlPuf8vUW4JxpE9OFT lRq80WjBSU1JEqiablz4O4Msz+bo9D7ZnxfH7gRXSPwg657hiv65NJd7HuqxhQYSVt vCS/U6F76nhoeeuYW4bT7UdhuyMvrforxJM1Rv3A= 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 5.16 174/200] net: hns3: handle empty unknown interrupt for VF Date: Mon, 31 Jan 2022 11:57:17 +0100 Message-Id: <20220131105239.401839850@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220131105233.561926043@linuxfoundation.org> References: <20220131105233.561926043@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 41afaeea881bc..70491e07b0ff6 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -2496,8 +2496,7 @@ 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; } -- 2.34.1