From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id D23292C026E for ; Wed, 26 Nov 2025 12:31:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764160313; cv=none; b=Y34XSZA/t53bD2rNKB4/JM6jQZr1jDWEjx+a/ff2yAnzF3i8fhZrTKcDqegsLYbtvqcopyyGB02Dy334EmoI1tRJ/UDsgq82++D7XubhwI6k5cLysxUo2RZe6T3lVr4rQwkgXZci57Ee4V5ufdIg7UWFEHrzxoWgH6iMC/uukGw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764160313; c=relaxed/simple; bh=x+x1aQMbIS3i8nLXPOquvs3bH9qXGi1RzK/NmtDuYrs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=fNYk2uEdXcMi3lG52d/sAVehalxuRPoFrKuMYBydmojX0rNgR2oEn5yKO8NXUM9aglbjMTuXxcU5xLS3jv+C0OVWtTVfa4W2wrUdeFA11l7L6VZJuAdgZPVdJxYR0K/wvX7ovg9zNhB1OxsPyvTiBBRRv33f5aG34MIGbLtkaR4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6391D168F; Wed, 26 Nov 2025 04:31:42 -0800 (PST) Received: from localhost (e132581.arm.com [10.1.196.87]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 78E243F73B; Wed, 26 Nov 2025 04:31:49 -0800 (PST) Date: Wed, 26 Nov 2025 12:31:47 +0000 From: Leo Yan To: James Clark Cc: Kuan-Wei Chiu , suzuki.poulose@arm.com, mike.leach@linaro.org, alexander.shishkin@linux.intel.com, pratikp@codeaurora.org, mathieu.poirier@linaro.org, gregkh@linuxfoundation.org, jserv@ccns.ncku.edu.tw, marscheng@google.com, ericchancf@google.com, milesjiang@google.com, nickpan@google.com, coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] coresight: etm3x: Fix buffer overwrite in cntr_val_show() Message-ID: <20251126123147.GI724103@e132581.arm.com> References: <20251121002350.1166758-1-visitorckw@gmail.com> <20251126120914.GH724103@e132581.arm.com> 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=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Nov 26, 2025 at 12:11:05PM +0000, James Clark wrote: [...] > > This fix can still be applied to older kernels, but seems to me that > > now might be an appropriate time to consider removing the ETMv3 driver > > from the mainline kernel? > > Yeah, if anyone is using it it would be on an old kernel surely? We can confirm this in another way: if I don't miss anything, over the past several years (since 2017), we have not received any questions or bug reports based on hands-on practice regarding ETMv3 on the Coresight or perf mailing lists. Thanks, Leo