From b1e952b4e484ebc9ffad674c361d261a1af02a13 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Mon, 24 Nov 2014 10:41:56 +0100
Subject: [PATCH] arm/arm64: vgic: Remove unreachable irq_clear_pending
When 'injecting' an edge-triggered interrupt with a falling edge we
shouldn't clear the pending state on the distributor. In fact, we
don't, because the check in vgic_validate_injection would prevent us
from ever reaching this bit of code.
Remove the unreachable snippet.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
virt/kvm/arm/vgic.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 5acf2c93f616..631a472e41cf 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -1643,8 +1643,6 @@ static bool vgic_update_irq_pending(struct kvm *kvm, int cpuid,
vgic_dist_irq_clear_level(vcpu, irq_num);
if (!vgic_dist_irq_soft_pend(vcpu, irq_num))
vgic_dist_irq_clear_pending(vcpu, irq_num);
- } else {
- vgic_dist_irq_clear_pending(vcpu, irq_num);
}
ret = false;
--
2.34.1