From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933288AbaDILan (ORCPT ); Wed, 9 Apr 2014 07:30:43 -0400 Received: from smtp-out-071.synserver.de ([212.40.185.71]:1043 "EHLO smtp-out-115.synserver.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932542AbaDILam (ORCPT ); Wed, 9 Apr 2014 07:30:42 -0400 X-SynServer-TrustedSrc: 1 X-SynServer-AuthUser: lars@metafoo.de X-SynServer-PPID: 19297 Message-ID: <53452F67.3060400@metafoo.de> Date: Wed, 09 Apr 2014 13:30:47 +0200 From: Lars-Peter Clausen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131103 Icedove/17.0.10 MIME-Version: 1.0 To: Krzysztof Kozlowski CC: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ASoC: core: Fix Sparse incompatible types warning References: <1397028108-10976-1-git-send-email-k.kozlowski@samsung.com> <5345279F.6070005@metafoo.de> <1397041934.11424.2.camel@AMDC1943> In-Reply-To: <1397041934.11424.2.camel@AMDC1943> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/09/2014 01:12 PM, Krzysztof Kozlowski wrote: > On śro, 2014-04-09 at 12:57 +0200, Lars-Peter Clausen wrote: >> On 04/09/2014 09:21 AM, Krzysztof Kozlowski wrote: >>> Fix following Sparse warning: >>> sound/soc/soc-core.c:252:20: error: incompatible types in comparison expression (different type sizes) >>> >>> Signed-off-by: Krzysztof Kozlowski >>> --- >>> sound/soc/soc-core.c | 2 +- >>> 1 file changed, 1 insertion(+), 1 deletion(-) >>> >>> diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c >>> index 051c006281f5..41f6178249df 100644 >>> --- a/sound/soc/soc-core.c >>> +++ b/sound/soc/soc-core.c >>> @@ -249,7 +249,7 @@ static ssize_t codec_reg_write_file(struct file *file, >>> struct snd_soc_codec *codec = file->private_data; >>> int ret; >>> >>> - buf_size = min(count, (sizeof(buf)-1)); >>> + buf_size = min(count, (size_t)(sizeof(buf)-1)); >> >> But shouldn't the type of sizeof already be size_t? > > Hmmm... yes it should. It looks like a false positive from Sparse so the > commit message should be rather "Suppress" than "Fix". I'm pretty sure it is a bug in sparse, we shouldn't suppress those, but rather fix them in sparse itself.