linux-kernel - Re: v2.6.31-7381-g7fa0772: new build warnings: kmemcheck, _

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Date:	Wed, 23 Sep 2009 10:20:46 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
Cc:	linux-kernel@...r.kernel.org,
	Vegard Nossum <vegard.nossum@...il.com>,
	Eric B Munson <ebmunson@...ibm.com>,
	Johannes Berg <johannes@...solutions.net>,
	Dave Airlie <airlied@...ux.ie>
Subject: Re: v2.6.31-7381-g7fa0772: new build warnings: kmemcheck, 
	__deprecated, hugetlb, radeon

On Tue, Sep 22, 2009 at 7:34 PM, Stefan Richter
<stefanr@...6.in-berlin.de> wrote:
> Latest git compiles with extreme noise:
>
> In file included from include/net/inet_connection_sock.h:23,
>                 from include/linux/tcp.h:178,
>                 from include/linux/ipv6.h:215,
>                 from include/net/ipv6.h:16,
>                 from include/linux/sunrpc/clnt.h:25,
>                 from include/linux/nfs_fs.h:52,
>                 from kernel/sysctl.c:48:
> include/net/inet_sock.h: In function 'inet_reqsk_alloc':
> include/net/inet_sock.h:208: warning: ISO C90 forbids mixed declarations and
> code
>
> Vegard, this is obviously caused by commit
> 45e3ff82708c65c895d5c5882aff17ecf62a80b5.
>
> $ grep KMEMCH .config
> CONFIG_HAVE_ARCH_KMEMCHECK=y
>
> (I.e. CONFIG_KMEMCHECK is off.)

Curious, I haven't seen this before. Is it coming from the
BUILD_BUG_ON() in kmemcheck_annotate_bitfield()? I can't seem to spot
the error.

                       Pekka
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