[PATCH][next] KVM: x86: remove redundant WARN_ON check of an unsigned less than zero

[Colin King]

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

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@xxxxxxxxxxxxx>
---
 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