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[2604:1380:40f1:3f00::1]) by mx.google.com with ESMTPS id h190-20020a636cc7000000b005ce087e004dsi11629097pgc.799.2024.04.02.14.57.25 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Apr 2024 14:57:26 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-128737-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="dYPk/mFO"; arc=pass (i=1 dkim=pass dkdomain=kernel.org); spf=pass (google.com: domain of linux-kernel+bounces-128737-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-128737-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id 766F3B250AE for ; Tue, 2 Apr 2024 21:37:43 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 3FC8915E7F3; Tue, 2 Apr 2024 21:37:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dYPk/mFO" Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 5AC4A5BAE4; Tue, 2 Apr 2024 21:37:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712093853; cv=none; b=YJob8j+TF/l+d4E2rsZFhHoKhprSa5vOaky6Uja8E772imD/bu1AC9DbSfWN1ZwzHbDgmSajPNpIucNXoa0trBjNTwrM7mwWGxdFzjNUnm3LFhlB2GaUtqqT4+yHNQUQggOimXAIkhz0EZtoBidXapAPaUWnzTnK5a7PdKceEds= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712093853; c=relaxed/simple; bh=sIBx7RwB2qvqQW6tyO38tW+0CwyoH7iyM/+YOWV6j2g=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aEH0lFwD90JMJXM9i12lfrb6O25jwKhiB9wMdDuI6pRuHrFW7+dyAblROotwPL1RY6kdi0kTrbTgGUeVmE5YVrjq3/nb22lBLXQE/Uyfg8UHncAeP4JunvHGvRXyZtsaqVJHh7CcZZwyle1/dkNDXnXRu0VrhnV08rsuHAkzK0k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dYPk/mFO; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6BC9EC433F1; Tue, 2 Apr 2024 21:37:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712093852; bh=sIBx7RwB2qvqQW6tyO38tW+0CwyoH7iyM/+YOWV6j2g=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dYPk/mFOIrLBeqSqXApAw9JLachGsiZgh4M8lzDFqhtSb/lMqDGerEkJSM+8n3wYm QAUOAh5E3q0PZ7QqPjm4l1MsWAmAREDtzDac/Hp/Vgm666MKBzzKe7t0MmLalkmhai p68d6fGuW0sSlV9OsBuP/aqQ0UaRwiAN+RywlAov6Ujv06nbWvZjUlMXScUQpa+znk VqtFyZtFSJ+cYkyrWgKDEKs72YdcQkAOLwtsCX2eJgLkRx7jmqaUJcaZbYL6dWcopE gBqtgZCOuj4BZryf4rIdeHSuT+hzxtZLFOvWFFmp7WMK1BcFxBujmMe5ugdQUJtREi hfqDfSYNCYI5A== Date: Tue, 2 Apr 2024 18:37:28 -0300 From: Arnaldo Carvalho de Melo To: Namhyung Kim Cc: Ian Rogers , Kan Liang , Jiri Olsa , Adrian Hunter , Peter Zijlstra , Ingo Molnar , LKML , linux-perf-users@vger.kernel.org, Song Liu , bpf@vger.kernel.org Subject: Re: [PATCH] perf lock contention: Add a missing NULL check Message-ID: References: <20240402184543.898923-1-namhyung@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Tue, Apr 02, 2024 at 01:42:05PM -0700, Namhyung Kim wrote: > On Tue, Apr 2, 2024 at 12:45 PM Arnaldo Carvalho de Melo wrote: > > Acked-by: Arnaldo Carvalho de Melo > > Are you going to have this merged into perf-tools? > > A Fixes: tag isn't perhaps needed as it worked in the past? > Fixes: 1811e82767dcc ("perf lock contention: Track and show siglock > with address") > It was introduced in v6.4 and it should be fine to have this > even without the error. I'll queue it to perf-tools. ok, better, people trying the tool with a recent kernel will experience this, so its the right thing to get it thru perf-tools. Thanks! - Arnaldo