linux-kernel - Re: linux-next: build warning after merge of the char-misc tree

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Message-ID: <20130215173429.GA27707@kroah.com>
Date:	Fri, 15 Feb 2013 09:34:29 -0800
From:	Greg KH <greg@...ah.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Arnd Bergmann <arnd@...db.de>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, David Stevenson <david@...ncliff.com>
Subject: Re: linux-next: build warning after merge of the char-misc tree

On Fri, Feb 15, 2013 at 04:26:57PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the char-misc tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
> 
> drivers/w1/slaves/w1_therm.c: In function 'w1_therm_read':
> drivers/w1/slaves/w1_therm.c:245:15: warning: 'crc' may be used uninitialized in this function [-Wuninitialized]
> 
> Its a false positive, but it was introduced by commit 867ff9880d5d
> ("w1_therm: Retries: remove old code add CRC")

I don't see that here with gcc 4.7.1, perhaps you need to upgrade your
version of gcc to not show these false positives?

thanks,

greg k-h
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