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authorMiaohe Lin <linmiaohe@huawei.com>2020-02-19 10:45:48 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2020-05-27 13:11:09 -0400
commita8cfbae59284ef20f38936a135f82a4d8d9105d2 (patch)
tree34775b905af95cd5a86975823aa406aa0281b596 /arch/x86
parentcb97c2d680dd9cefd2b36cafd2426f52d85b27e7 (diff)
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KVM: VMX: replace "fall through" with "return" to indicate different case
The second "/* fall through */" in rmode_exception() makes code harder to read. Replace it with "return" to indicate they are different cases, only the #DB and #BP check vcpu->guest_debug, while others don't care. And this also improves the readability. Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Message-Id: <1582080348-20827-1-git-send-email-linmiaohe@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kvm/vmx/vmx.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index ab31033121f9..4e76e30b661c 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4626,10 +4626,8 @@ static bool rmode_exception(struct kvm_vcpu *vcpu, int vec)
return false;
/* fall through */
case DB_VECTOR:
- if (vcpu->guest_debug &
- (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP))
- return false;
- /* fall through */
+ return !(vcpu->guest_debug &
+ (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP));
case DE_VECTOR:
case OF_VECTOR:
case BR_VECTOR: