linux-kernel - [PATCH] KVM: arm64: vgic: add default case to switch statement

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Message-ID: <20251211224033.18079-1-osama.abdelkader@gmail.com>
Date: Thu, 11 Dec 2025 23:40:28 +0100
From: Osama Abdelkader <osama.abdelkader@...il.com>
To: Marc Zyngier <maz@...nel.org>,
	Oliver Upton <oupton@...nel.org>,
	Joey Gouly <joey.gouly@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Zenghui Yu <yuzenghui@...wei.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	kvmarm@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Cc: Osama Abdelkader <osama.abdelkader@...il.com>
Subject: [PATCH] KVM: arm64: vgic: add default case to switch statement

The switch statement in vgic_validate_injection() handles all enum
values for irq->config, but lacked a default case. Add one to match
the pattern used in other switch statements in the same file and make
the defensive return explicit.

Signed-off-by: Osama Abdelkader <osama.abdelkader@...il.com>
---
 arch/arm64/kvm/vgic/vgic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic.c b/arch/arm64/kvm/vgic/vgic.c
index 430aa98888fd..a035ce6231e2 100644
--- a/arch/arm64/kvm/vgic/vgic.c
+++ b/arch/arm64/kvm/vgic/vgic.c
@@ -369,9 +369,9 @@ static bool vgic_validate_injection(struct vgic_irq *irq, bool level, void *owne
 		return irq->line_level != level;
 	case VGIC_CONFIG_EDGE:
 		return level;
+	default:
+		return false;
 	}
-
-	return false;
 }
 
 static bool vgic_model_needs_bcst_kick(struct kvm *kvm)
-- 
2.43.0