This is a note to let you know that I've just added the patch titled
arch/x86/kvm/mmu.c: work around gcc-4.4.4 bug
to the 4.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arch-x86-kvm-mmu.c-work-around-gcc-4.4.4-bug.patch
and it can be found in the queue-4.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5ec45a192fe6e287f0fc06d5ca4f3bd446d94803 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Date: Wed, 10 Jun 2015 11:15:02 -0700
Subject: arch/x86/kvm/mmu.c: work around gcc-4.4.4 bug
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
commit 5ec45a192fe6e287f0fc06d5ca4f3bd446d94803 upstream.
Fix this compile issue with gcc-4.4.4:
arch/x86/kvm/mmu.c: In function 'kvm_mmu_pte_write':
arch/x86/kvm/mmu.c:4256: error: unknown field 'cr0_wp' specified in initializer
arch/x86/kvm/mmu.c:4257: error: unknown field 'cr4_pae' specified in initializer
arch/x86/kvm/mmu.c:4257: warning: excess elements in union initializer
...
gcc-4.4.4 (at least) has issues when using anonymous unions in
initializers.
Fixes: edc90b7dc4ceef6 ("KVM: MMU: fix SMAP virtualization")
Cc: Xiao Guangrong <guangrong.xiao@xxxxxxxxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Donald Parsons <dparsons@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/kvm/mmu.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4215,13 +4215,13 @@ void kvm_mmu_pte_write(struct kvm_vcpu *
u64 entry, gentry, *spte;
int npte;
bool remote_flush, local_flush, zap_page;
- union kvm_mmu_page_role mask = (union kvm_mmu_page_role) {
- .cr0_wp = 1,
- .cr4_pae = 1,
- .nxe = 1,
- .smep_andnot_wp = 1,
- .smap_andnot_wp = 1,
- };
+ union kvm_mmu_page_role mask = { };
+
+ mask.cr0_wp = 1;
+ mask.cr4_pae = 1;
+ mask.nxe = 1;
+ mask.smep_andnot_wp = 1;
+ mask.smap_andnot_wp = 1;
/*
* If we don't have indirect shadow pages, it means no page is
Patches currently in stable-queue which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
queue-4.0/arch-x86-kvm-mmu.c-work-around-gcc-4.4.4-bug.patch
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