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| author | Julia Lawall <julia@diku.dk> | 2010-02-06 09:43:03 +0100 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-03-01 12:36:07 -0300 |
| commit | c45b4fd416f5497b6b38dd70acc0e5b01399e5c9 (patch) | |
| tree | be641dac5be99156204405d5e8cb78765e015d61 /arch | |
| parent | 16fbb5eecc4ab8d4eb4d2a683d7fd74ccacc890b (diff) | |
| download | blackbird-op-linux-c45b4fd416f5497b6b38dd70acc0e5b01399e5c9.tar.gz blackbird-op-linux-c45b4fd416f5497b6b38dd70acc0e5b01399e5c9.zip | |
KVM: VMX: Remove redundant test in vmx_set_efer()
msr was tested above, so the second test is not needed.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r@
expression *x;
expression e;
identifier l;
@@
if (x == NULL || ...) {
... when forall
return ...; }
... when != goto l;
when != x = e
when != &x
*x == NULL
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 82fb810afd3f..b400be06c8cd 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1602,8 +1602,6 @@ static void vmx_set_efer(struct kvm_vcpu *vcpu, u64 efer) */ vmx_load_host_state(to_vmx(vcpu)); vcpu->arch.efer = efer; - if (!msr) - return; if (efer & EFER_LMA) { vmcs_write32(VM_ENTRY_CONTROLS, vmcs_read32(VM_ENTRY_CONTROLS) | |
