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Subject[PATCH 5.4 39/50] x86/kvm: fix a missing-prototypes "vmread_error"
Date
From: Qian Cai <cai@lca.pw>

commit 514ccc194971d0649e4e7ec8a9b3a6e33561d7bf upstream.

The commit 842f4be95899 ("KVM: VMX: Add a trampoline to fix VMREAD error
handling") removed the declaration of vmread_error() causes a W=1 build
failure with KVM_WERROR=y. Fix it by adding it back.

arch/x86/kvm/vmx/vmx.c:359:17: error: no previous prototype for 'vmread_error' [-Werror=missing-prototypes]
asmlinkage void vmread_error(unsigned long field, bool fault)
^~~~~~~~~~~~

Signed-off-by: Qian Cai <cai@lca.pw>
Message-Id: <20200402153955.1695-1-cai@lca.pw>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
arch/x86/kvm/vmx/ops.h | 1 +
1 file changed, 1 insertion(+)

--- a/arch/x86/kvm/vmx/ops.h
+++ b/arch/x86/kvm/vmx/ops.h
@@ -12,6 +12,7 @@

#define __ex(x) __kvm_handle_fault_on_reboot(x)

+asmlinkage void vmread_error(unsigned long field, bool fault);
__attribute__((regparm(0))) void vmread_error_trampoline(unsigned long field,
bool fault);
void vmwrite_error(unsigned long field, unsigned long value);

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