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Commit 9ab80843 authored by Hollis Blanchard's avatar Hollis Blanchard Committed by Avi Kivity
Browse files

KVM: ppc: optimize find first bit 



Since we use a unsigned long here anyway we can use the optimized __ffs.

Signed-off-by: default avatarChristian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: default avatarHollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 1b6766c7

arch/powerpc/kvm/booke.c

+1 −1
Original line number Diff line number Diff line
@@ -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)) {