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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D9261C3DA6E for ; Mon, 8 Jan 2024 14:30:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=sVMqThbVP0Q8RE+595KzEmSzoEzPpkpeb2mdqe/54Po=; b=aKB15tzrpS91KhlOtEpMuNIGgZ bdWk3H6fqMwxrCkheYFjF6FcbQ/gS571+10W8liOefSVSNeAKWFEkbSj31E0Yq6bPWw4bFvU42cjU 2a78mooNAPHkq9QKkE5HNRaWn+HNU17hAb9kaRXJgvuLU56hFWA7e2IqaKfL8bW990UwnhOV+KBt+ xK9+ZbGtmRE0Pu4jHVUrqEEe7ck3m3k1EytGE/wfVc//vyHiRxGb7g4bdp4Z9QE1hrwNJZ4yLVgYu r8jcDO7RHyQtwe6vtmKtsHo0FRpkbXyepu4jWCgXTSvaIuMhNHntqIIIDZ3Fl6LhZBfz8SbDilJbk NkS2YYyw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rMqdp-005Mpo-31; Mon, 08 Jan 2024 14:30:13 +0000 Received: from mail-pl1-f178.google.com ([209.85.214.178]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rMqdm-005Mo8-2f; Mon, 08 Jan 2024 14:30:12 +0000 Received: by mail-pl1-f178.google.com with SMTP id d9443c01a7336-1d3e2972f65so2808175ad.3; Mon, 08 Jan 2024 06:30:09 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704724209; x=1705329009; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=sVMqThbVP0Q8RE+595KzEmSzoEzPpkpeb2mdqe/54Po=; b=iQP+cXWeI6Rsla/j0MstBMmavlZpx8zqi751cZHP636GQ4jMEv06jWbFVnlG3ThIe4 LN9T7IomgLxH/zU7oYSfwxk0fOLOnNp058AQOSWgbdNLbGDk64gUL2afTJS29n7oXrLm 3BO3JLO+w40DHn7Weyl0aazJTRQFZ3S6asmaLggoXd2rZpj82O8xNowZ6rKEPcNH5Rl4 f82wC0dclCbucC1cMfcge7mvKW9DIvMLXg6EnPJkKc1GkpsMf1TINe1wbL0tqrnIf7Kv 7mjvO8qDW5cLjXlUiZyXgz/Jg23ESB4nkhfZeAgrRHb2DtIalj0HzfH6zC1SyqNIypj9 UT2Q== X-Gm-Message-State: AOJu0Yz+Iv/lj6okIIo5wRjJ8k9arSZOf87z34DS8krqF2mPPbbb9CrS vum1gy9rgKKKt3cZ8Q5iXW8= X-Google-Smtp-Source: AGHT+IE3fdqzVYISbL4ZtM/lxTCygtaE0GCar9x98h7e8R949MP4dVwbh+1fDeut8mKc+f/isMwbKQ== X-Received: by 2002:a17:902:ce81:b0:1d5:2197:46e9 with SMTP id f1-20020a170902ce8100b001d5219746e9mr1033721plg.117.1704724208990; Mon, 08 Jan 2024 06:30:08 -0800 (PST) Received: from localhost (fpd11144dd.ap.nuro.jp. [209.17.68.221]) by smtp.gmail.com with ESMTPSA id u13-20020a170902e5cd00b001d09c5424d4sm6321570plf.297.2024.01.08.06.30.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Jan 2024 06:30:08 -0800 (PST) Date: Mon, 8 Jan 2024 23:30:06 +0900 From: Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= To: Jianjun Wang Cc: Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Matthias Brugger , AngeloGioacchino Del Regno , Ryder Lee , linux-pci@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, qizhong.cheng@mediatek.com, stable@vger.kernel.org Subject: Re: [PATCH v4] PCI: mediatek: Clear interrupt status before dispatching handler Message-ID: <20240108143006.GA2602112@rocinante> References: <20231211094923.31967-1-jianjun.wang@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231211094923.31967-1-jianjun.wang@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240108_063010_867230_57C2EBAA X-CRM114-Status: UNSURE ( 9.40 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Hello, > We found a failure when used iperf tool for wifi performance testing, > there are some MSIs received while clearing the interrupt status, > these MSIs cannot be serviced. > > The interrupt status can be cleared even the MSI status still remaining, > as an edge-triggered interrupts, its interrupt status should be cleared > before dispatching to the handler of device. Applied to controller/mediatek, thank you! [1/1] PCI: mediatek: Clear interrupt status before dispatching handler https://git.kernel.org/pci/pci/c/4fea201e110e Krzysztof