[PATCH v5 1/3] KVM: x86: Isolate edge vs. level check in userspace I/O APIC route scanning

[Sean Christopherson <seanjc@google.com>]

Extract and isolate the trigger mode check in kvm_scan_ioapic_routes() in
anticipation of moving destination matching logic to a common helper (for
userspace vs. in-kernel I/O APIC emulation).

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 arch/x86/kvm/irq_comm.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/irq_comm.c b/arch/x86/kvm/irq_comm.c
index 8136695f7b96..866f84392797 100644
--- a/arch/x86/kvm/irq_comm.c
+++ b/arch/x86/kvm/irq_comm.c
@@ -424,10 +424,12 @@ void kvm_scan_ioapic_routes(struct kvm_vcpu *vcpu,
 
 			kvm_set_msi_irq(vcpu->kvm, entry, &irq);
 
-			if (irq.trig_mode &&
-			    (kvm_apic_match_dest(vcpu, NULL, APIC_DEST_NOSHORT,
-						 irq.dest_id, irq.dest_mode) ||
-			     kvm_apic_pending_eoi(vcpu, irq.vector)))
+			if (!irq.trig_mode)
+				continue;
+
+			if (kvm_apic_match_dest(vcpu, NULL, APIC_DEST_NOSHORT,
+						irq.dest_id, irq.dest_mode) ||
+			     kvm_apic_pending_eoi(vcpu, irq.vector))
 				__set_bit(irq.vector, ioapic_handled_vectors);
 		}
 	}
-- 
2.48.1.711.g2feabab25a-goog