linux-kernel - linux-next: build failure after merge of the xen-two tree

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Date:	Mon, 4 Feb 2013 15:14:56 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Yinghai Lu <yinghai@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Mukesh Rathor <mukesh.rathor@...cle.com>
Subject: linux-next: build failure after merge of the xen-two tree

Hi Konrad,

After merging the xen-two tree, today's linux-next build (x86_64
allmodconfig) failed like this:

arch/x86/xen/mmu.c: In function 'xen_init_mmu_ops':
arch/x86/xen/mmu.c:2213:10: error: 'struct x86_init_ops' has no member named 'mapping'
arch/x86/xen/mmu.c:2213:39: error: 'xen_mapping_pagetable_reserve' undeclared (first use in this function)

Caused by commit 8154d7a6b9b9 ("xen/pvh: Implement MMU changes for PVH")
from the xen-two tree interacting with commit 6f80b68e9e51 ("x86, mm,
Xen: Remove mapping_pagetable_reserve()") from the tip tree.  The
automatic merge left the moved version of the above line intact while it
should have been removed (I assume).

I have added the following merge fix patch and can carry the fix as
necessary.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Mon, 4 Feb 2013 15:08:33 +1100
Subject: [PATCH] xen: fix bad merge of arch/x86/xen/mmu.c

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 arch/x86/xen/mmu.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 824706a..3228600 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -2210,7 +2210,6 @@ void __init xen_init_mmu_ops(void)
 		pv_mmu_ops.flush_tlb_others = xen_flush_tlb_others;
 		return;
 	}
-	x86_init.mapping.pagetable_reserve = xen_mapping_pagetable_reserve;
 	pv_mmu_ops = xen_mmu_ops;
 
 	memset(dummy_mapping, 0xff, PAGE_SIZE);
-- 
1.8.1

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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