arch/x86/kvm/mmu.c: work around gcc-4.4.4 bug

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@linux.intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 7 deletions

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 44a7d2515497..b73337634214 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4215,13 +4215,13 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
         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