[PATCH] MMU: fix cmpxchg8b emulation on i386 to use the right address

[Carlo Marcelo Arenas Belon <carenas-kLeDWSohozoJb6fo7hG9ng@public.gmane.org>]

change the function parameter to use vaddr instead of addr to avoid a
variable name redefinition from 9a5ee611ca79bec98e9d97e93f11df8083b8af6e
that resulted in :

  kernel/x86.c:1746: warning: passing argument 2 of 'vcpu->arch.mmu.gva_to_gpa' makes integer from pointer without a cast
  kernel/x86.c:1746: warning: 'addr' is used uninitialized in this function

Signed-off-by: Carlo Marcelo Arenas Belon <carenas-kLeDWSohozoJb6fo7hG9ng@public.gmane.org>
---
 arch/x86/kvm/x86.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c5b4825..abe08d1 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1722,7 +1722,7 @@ int emulator_write_emulated(unsigned long addr,
 }
 EXPORT_SYMBOL_GPL(emulator_write_emulated);
 
-static int emulator_cmpxchg_emulated(unsigned long addr,
+static int emulator_cmpxchg_emulated(unsigned long vaddr,
 				     const void *old,
 				     const void *new,
 				     unsigned int bytes,
@@ -1743,7 +1743,7 @@ static int emulator_cmpxchg_emulated(unsigned long addr,
 		u64 val;
 
 		down_read(&current->mm->mmap_sem);
-		gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+		gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, vaddr);
 
 		if (gpa == UNMAPPED_GVA ||
 		   (gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
@@ -1763,7 +1763,7 @@ static int emulator_cmpxchg_emulated(unsigned long addr,
 	}
 #endif
 
-	return emulator_write_emulated(addr, new, bytes, vcpu);
+	return emulator_write_emulated(vaddr, new, bytes, vcpu);
 }
 
 static unsigned long get_segment_base(struct kvm_vcpu *vcpu, int seg)
-- 
1.5.3.7


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