netdev - Re: [PATCH] net: reference the ipv4 sysctl table header

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Message-Id: <20120328.165132.1309449708287640005.davem@davemloft.net>
Date:	Wed, 28 Mar 2012 16:51:32 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	rostedt@...dmis.org
Cc:	tixxdz@...ndz.org, ebiederm@...ssion.com, viro@...iv.linux.org.uk,
	netdev@...r.kernel.org
Subject: Re: [PATCH] net: reference the ipv4 sysctl table header

From: Steven Rostedt <rostedt@...dmis.org>
Date: Wed, 28 Mar 2012 12:32:20 -0400

> I just started using kmemleak and notice that it reports false positives
> for several __init functions that call register_sysctl_paths(). The fix
> you want is:
> 
> {
> 	sturct ctl_table_header *head;
> 
> 	head = register_sysctl_paths(ipv4_path, ipv4_skeleton);
> 	BUG_ON(!head);
> 	kmemleak_ignore(head);
> 
> 
> No need to waste a pointer just to keep the reference around for
> kmemleak.

That looks a lot saner than the other suggestions, indeed.
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