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From: Qian Cai <>
Cc:,,, Qian Cai <>
Subject: [PATCH -next] x86/kvm: fix a missing-prototypes "vmread_error"
Date: Thu,  2 Apr 2020 11:39:55 -0400	[thread overview]
Message-ID: <> (raw)

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

diff --git a/arch/x86/kvm/vmx/ops.h b/arch/x86/kvm/vmx/ops.h
index 09b0937d56b1..19717d0a1100 100644
--- 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);
2.21.0 (Apple Git-122.2)

             reply	other threads:[~2020-04-02 15:40 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-02 15:39 Qian Cai [this message]
2020-04-02 19:23 ` Paolo Bonzini

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