From mboxrd@z Thu Jan 1 00:00:00 1970 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 7BE1F21ABDA for ; Fri, 16 May 2025 10:23:20 +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=1747391000; cv=none; b=ly+evB3WL9O79+rMrz5PWDpStsmIiw11UcmB4/sWwn0bmZvN7YjrKxKUq8y743r8JXSX67AgQAoEC+Wwgoll0+lHK/QZVfsy5uTZPXo191mrirMFOC1tHLMdiwsHq/ANJMDoLMTO6brXrfK7/7CgG+QoEkhFUEJb7ajCxYBkyRo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747391000; c=relaxed/simple; bh=xjHLA3BWSq3W749LUYRSlJVMwRjkGpbKLhKT3AS5O1w=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=u3kNfuk0J57F3cmI7IMFx7EwmkxQ7oDsqHj2J35/s3zdeqZXLR5ACyHbeJb3piE21kN+qC41ZHsAPpRFi1KQtwtgnrpTPdokrPslQrDBIyEs+cMIt2E0v/Sp8pSBc+x79g0U2ssotZWNiBKDsdMdVe3XeJXl5XqwIFbAwIXV5zw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gGHIlBKo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gGHIlBKo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7C7F2C4CEF1; Fri, 16 May 2025 10:23:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747391000; bh=xjHLA3BWSq3W749LUYRSlJVMwRjkGpbKLhKT3AS5O1w=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=gGHIlBKowna1VHP6Fo4OUaUFMDzETqeeQHIOhI2B5Uwmr9o5LCMfJ3wlRMEOVt/jf cIYUDcekCd4gt5Qq/wyrI8ry7WOjLG6jXv2jyrirx75ZZl3z3yqYj/2bt/hRPjXqwV CESgQBDqKPnV/OecpdPhd5FpLwWUslsG9MYa7DUW2xk7NduftSGaZ0JF5u75Y2klhR +WoEGXLFhvWhrhiMcKtM5TlxG3q/zS0zHyZSzDnHEUEuvTcA7e8TL2JSeqzB5J3P1y Z6X8yl1+K5k5/nHSXawXv9iXg8cI1/N3vs0tIcIE+t2rV3Dbp4OoHX5dOJCpgj921O UjnTkL21b2o3w== Message-ID: <79bd93c0-52b6-45cf-9e65-1e3636b5d95e@kernel.org> Date: Fri, 16 May 2025 12:23:17 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 1/1] genirq: Bump the size of the local variable for sprintf() To: Andy Shevchenko Cc: Thomas Gleixner , linux-kernel@vger.kernel.org, kernel test robot References: <20250515085516.2913290-1-andriy.shevchenko@linux.intel.com> <0e79e48c-f466-41f7-bb60-03f45f6b0628@kernel.org> Content-Language: en-US From: Jiri Slaby Autocrypt: addr=jirislaby@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 16. 05. 25, 11:07, Andy Shevchenko wrote: > On Fri, May 16, 2025 at 06:45:04AM +0200, Jiri Slaby wrote: >> On 15. 05. 25, 10:55, Andy Shevchenko wrote: > > ... > >>> - char name [10]; >>> + char name [12]; >> >> The max irq is ~ 512000, if I am counting correctly, so 7 B should be >> actually enough for everybody ;). > > GCC can't proved it. And FWIW, on current Debian unstable (GCC 14?) I can't > reproduce this. In any case this doesn't increase stack usage AFAICT, the array > already have reserved 12 or 16 bytes. Yes, sure, I am not disputing the fix. >> But well, can we silence the warning in a better way? I doubt that... > > With the above said, I think it's pretty much close to the best way. > But if you find anything better, I also would like to learn. Perhaps next in row would be using snprintf(), but dunno if it's better at all. -- js suse labs