Messages in this thread Patch in this message | | | From | Colin King <> | Subject | [PATCH][next] KVM: x86: remove redundant WARN_ON check of an unsigned less than zero | Date | Fri, 7 Feb 2020 23:18:13 +0000 |
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From: Colin Ian King <colin.king@canonical.com>
The check cpu->hv_clock.system_time < 0 is redundant since system_time is a u64 and hence can never be less than zero. Remove it.
Addresses-Coverity: ("Macro compares unsigned to 0") Signed-off-by: Colin Ian King <colin.king@canonical.com> --- arch/x86/kvm/x86.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index fbabb2f06273..d4967ac47e68 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2448,7 +2448,6 @@ static int kvm_guest_time_update(struct kvm_vcpu *v) vcpu->hv_clock.tsc_timestamp = tsc_timestamp; vcpu->hv_clock.system_time = kernel_ns + v->kvm->arch.kvmclock_offset; vcpu->last_guest_tsc = tsc_timestamp; - WARN_ON(vcpu->hv_clock.system_time < 0); /* If the host uses TSC clocksource, then it is stable */ pvclock_flags = 0; -- 2.24.0
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