linux-kernel - linux-next: build warning in Linus' tree

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Message-Id: <20100526114306.5fa6fa0e.sfr@canb.auug.org.au>
Date:	Wed, 26 May 2010 11:43:06 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	David Miller <davem@...emloft.net>, <netdev@...r.kernel.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Linus <torvalds@...ux-foundation.org>,
	Herbert Xu <herbert@...dor.apana.org.au>
Subject: linux-next: build warning in Linus' tree

Hi Dave,

Today's linux-next build (x86_64 allmodconfig) produced this warning:

net/core/sock.c: In function 'sock_update_classid':
include/net/cls_cgroup.h:42: warning: 'classid' may be used uninitialized in this function
include/net/cls_cgroup.h:42: note: 'classid' was declared here

In the case that rcu_dereference() returns a value < 0, classid will not
be assigned in task_cls_classid().  I don't know if this is possible - if
not, then why is the test there?
-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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