From 9ab80843c01ac25139e635d018467e528729a317 Mon Sep 17 00:00:00 2001 From: Hollis Blanchard Date: Wed, 5 Nov 2008 09:36:22 -0600 Subject: [PATCH] KVM: ppc: optimize find first bit Since we use a unsigned long here anyway we can use the optimized __ffs. Signed-off-by: Christian Ehrhardt Signed-off-by: Hollis Blanchard Signed-off-by: Avi Kivity --- arch/powerpc/kvm/booke.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index b285e3d..0f06471 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -222,7 +222,7 @@ void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu) unsigned int exception; unsigned int priority; - priority = find_first_bit(pending, BITS_PER_BYTE * sizeof(*pending)); + priority = __ffs(*pending); while (priority <= BOOKE_MAX_INTERRUPT) { exception = priority_exception[priority]; if (kvmppc_can_deliver_interrupt(vcpu, exception)) { -- 1.8.2.3