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

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Date:	Thu, 08 Apr 2010 11:40:13 +0300
From:	Timo Teräs <timo.teras@....fi>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: powerpc boot failure

Stephen Rothwell wrote:
> On Thu, 08 Apr 2010 10:29:49 +0300 Timo Teräs <timo.teras@....fi> wrote:
>> You don't probably have any xfrm policies then. And that code should not
>> really get executed.
>>
>> Some of the changes touch globally visible structs, and inline functions.
>> Was this a clean rebuild? And did you update all kernel modules, also in
>> the initramfs?
> 
> Yes, the build is started from scratch and the kernel and modules are
> updated (this is our automated build and test system).
> 
> I have attached the config in case that is of use.

It looks like my new code uses xfrm_pols_put assuming it always does the
proper thing. But seems like it's doing funny stuff if CONFIG_XFRM_SUB_POLICY
is not set, which is your case.

Can you try if this helps?

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 625dd61..cccb049 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -735,19 +735,12 @@ static inline void xfrm_pol_put(struct xfrm_policy *policy
                xfrm_policy_destroy(policy);
 }
 
-#ifdef CONFIG_XFRM_SUB_POLICY
 static inline void xfrm_pols_put(struct xfrm_policy **pols, int npols)
 {
        int i;
        for (i = npols - 1; i >= 0; --i)
                xfrm_pol_put(pols[i]);
 }
-#else
-static inline void xfrm_pols_put(struct xfrm_policy **pols, int npols)
-{
-       xfrm_pol_put(pols[0]);
-}
-#endif
 
 extern void __xfrm_state_destroy(struct xfrm_state *);
 
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