Date: Mon, 31 Oct 2005 00:57:26 +0000
From: Al Viro <viro@ftp.linux.org.uk>
To: Paul Mackerras <paulus@samba.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Dave Jones <davej@redhat.com>,
       Keith Owens <kaos@ocs.com.au>, linux-kernel@vger.kernel.org
Subject: Re: 2.6.14 assorted warnings
Message-ID: <20051031005726.GS7992@ftp.linux.org.uk>
References: <5455.1130484079@kao2.melbourne.sgi.com> <20051028073049.GA27389@redhat.com> <1130710531.32734.5.camel@localhost.localdomain> <17253.27399.700034.125453@cargo.ozlabs.ibm.com>
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On Mon, Oct 31, 2005 at 11:53:27AM +1100, Paul Mackerras wrote:
> Gcc will warn on the use of x when in fact it is perfectly OK, and we
> get quite a few of these in compiling a kernel.  At a minimum, I would
> like to be able to disable the "may be used uninitialized" warnings
> while still getting the "is used uninitialized" warnings.

Quite.  "may be used uninitialized" has _way_ too low S/N ratio - absolute
majority of these warnings are bogus.  Moreover, several very common use
patterns reliably trigger them.
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