linux-kernel - Re: linux-next: powerpc boot failure

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Date:	Thu, 08 Apr 2010 13:13:04 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	tony.luck@...el.com
Cc:	timo.teras@....fi, sfr@...b.auug.org.au, netdev@...r.kernel.org,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: powerpc boot failure

From: Tony Luck <tony.luck@...el.com>
Date: Thu, 8 Apr 2010 11:55:34 -0700

> I tried the patch you just posted.  Compiling with it gave this warning:
> 
> net/xfrm/xfrm_policy.c: In function ‘__xfrm_lookup’:
> net/xfrm/xfrm_policy.c:1735: warning: ‘num_xfrms’ may be used
> uninitialized in this function

This is just because gcc is stupid, you can ignore this.

It can't see that when a real 'err' error is returned we never end up
referencing the num_xfrms value.

> but the patched kernel booted ok.

Thanks for testing, I pushed Timo's fix to net-next-2.6 earlier today
so it'll hopefully show up in the next linux-next.