KVM: use symbolic constant for nr interrupts

interrupt_bitmap is KVM_NR_INTERRUPTS bits in size,
so just use that instead of hard-coded constants
and math.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index f91e2c9d7cb1fda4fc932ef8f823e7487726b1e1..c4d451ed1573982521dfcc344600bbbae73bfac3 100644 (file)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2366,7 +2366,7 @@ static int kvm_vcpu_ioctl_set_lapic(struct kvm_vcpu *vcpu,
 static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
                                    struct kvm_interrupt *irq)
 {
-       if (irq->irq < 0 || irq->irq >= 256)
+       if (irq->irq < 0 || irq->irq >= KVM_NR_INTERRUPTS)
                return -EINVAL;
        if (irqchip_in_kernel(vcpu->kvm))
                return -ENXIO;
@@ -5793,7 +5793,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
        if (mmu_reset_needed)
                kvm_mmu_reset_context(vcpu);
 
-       max_bits = (sizeof sregs->interrupt_bitmap) << 3;
+       max_bits = KVM_NR_INTERRUPTS;
        pending_vec = find_first_bit(
                (const unsigned long *)sregs->interrupt_bitmap, max_bits);
        if (pending_vec < max_bits) {