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Subjectlinux-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

From: Stephen Rothwell <>
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 <>
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;
- x86_init.mapping.pagetable_reserve = xen_mapping_pagetable_reserve;
pv_mmu_ops = xen_mmu_ops;

memset(dummy_mapping, 0xff, PAGE_SIZE);
Stephen Rothwell
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