Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759647Ab3CZMck (ORCPT ); Tue, 26 Mar 2013 08:32:40 -0400 Received: from intranet.asianux.com ([58.214.24.6]:16925 "EHLO intranet.asianux.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758020Ab3CZMcj (ORCPT ); Tue, 26 Mar 2013 08:32:39 -0400 X-Spam-Score: -100.8 Message-ID: <51519549.5070204@asianux.com> Date: Tue, 26 Mar 2013 20:32:09 +0800 From: Chen Gang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 MIME-Version: 1.0 To: Frederic Weisbecker CC: tglx@linutronix.de, Greg KH , "linux-kernel@vger.kernel.org" , Andrew Morton Subject: Re: [Suggestion] kernel: 'now' may be used uninitialized in posix_cpu_timer_schedule function References: <51514202.2030504@asianux.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1390 Lines: 40 On 2013年03月26日 20:27, Frederic Weisbecker wrote: > 2013/3/26 Chen Gang : >> > Hello Maintainers: >> > >> > compiling with EXTRA_CFLAGS=-W: >> > make V=1 EXTRA_CFLAGS=-W ARCH=arm s3c2410_defconfig >> > make V=1 EXTRA_CFLAGS=-W ARCH=arm menuconfig >> > set 'arm-linux-gnu-' for cross chain prefix >> > make V=1 EXTRA_CFLAGS=-W ARCH=arm >> > >> > it will report: >> > kernel/posix-cpu-timers.c:1065:19: warning: �now� may be used uninitialized in this function [-Wuninitialized] >> > >> > it seems it is really a bug. >> > can any member help to fix it ? >> > or provide additional suggestion ? >> > (it seems only "unsigned long long now = 0" is not enough). > Yeah it's missing a call to cpu_timer_sample_group() before > clear_dead_task(). Andrew Morton reported the warning and I have a > pending patch to fix that. I'm just checking a few other things before > sending it. These clear_dead_task() calls seem to also conflict with > cleanup_timers(). I'm fixing that too. > > Thanks for your report! > > thank you, too. :-) -- Chen Gang Asianux Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/