Re: [PATCH 03/11] KVM: x86: Clean up kvm_vcpu_ioctl_x86_setup_mce()

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Paolo,

Isaku is going to re-organize TDX KVM series based on your and tglx's comments. I'm not sure if it's good/correct to make this series separate. Maybe introduction of vm_type is better to sit at the very beginning of Isaku's next series. In that case, I think you can pick this cleanup patch separately?

Thanks,
-Xiaoyao

On 11/12/2021 11:37 PM, Xiaoyao Li wrote:
No need to use goto.

Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx>
---
  arch/x86/kvm/x86.c | 12 +++++-------
  1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 23617582712d..b02088343d80 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4505,15 +4505,13 @@ static int vcpu_ioctl_tpr_access_reporting(struct kvm_vcpu *vcpu,
  static int kvm_vcpu_ioctl_x86_setup_mce(struct kvm_vcpu *vcpu,
  					u64 mcg_cap)
  {
-	int r;
  	unsigned bank_num = mcg_cap & 0xff, bank;
- r = -EINVAL;
  	if (!bank_num || bank_num > KVM_MAX_MCE_BANKS)
-		goto out;
+		return -EINVAL;
  	if (mcg_cap & ~(kvm_mce_cap_supported | 0xff | 0xff0000))
-		goto out;
-	r = 0;
+		return -EINVAL;
+
  	vcpu->arch.mcg_cap = mcg_cap;
  	/* Init IA32_MCG_CTL to all 1s */
  	if (mcg_cap & MCG_CTL_P)
@@ -4523,8 +4521,8 @@ static int kvm_vcpu_ioctl_x86_setup_mce(struct kvm_vcpu *vcpu,
  		vcpu->arch.mce_banks[bank*4] = ~(u64)0;
static_call(kvm_x86_setup_mce)(vcpu);
-out:
-	return r;
+
+	return 0;
  }
static int kvm_vcpu_ioctl_x86_set_mce(struct kvm_vcpu *vcpu,





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