linux-kernel - Re: [PATCH] autofs4 - fix false positive compile error

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Message-Id: <20140625130648.1e3cd0e578602918dc38bb6a@linux-foundation.org>
Date:	Wed, 25 Jun 2014 13:06:48 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ian Kent <raven@...maw.net>
Cc:	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	autofs mailing list <autofs@...r.kernel.org>,
	Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] autofs4 - fix false positive compile error

On Wed, 25 Jun 2014 20:49:39 +0800 Ian Kent <raven@...maw.net> wrote:

> On strict build environments we can see:
> 
> fs/autofs4/inode.c: In function 'autofs4_fill_super':
> fs/autofs4/inode.c:312: error: 'pgrp' may be used uninitialized in this
> function
> make[2]: *** [fs/autofs4/inode.o] Error 1
> make[1]: *** [fs/autofs4] Error 2
> make: *** [fs] Error 2
> make: *** Waiting for unfinished jobs....
> 
> This is due to the use of pgrp_set being used to indicate pgrp has
> has been set rather than initializing pgrp itself.
> 

Yes, that code seems to be explicitly designed to trigger a gcc warning ;)

What is a "strict build environment"?  Someone's using -Werror for the
entire kernel?  That must make for a miserable life.


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