linux-kernel - [PATCH] KVM: arm64: vgic: simplify vgic_v3_redist_region

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Message-ID: <20251211225114.20474-1-osama.abdelkader@gmail.com>
Date: Thu, 11 Dec 2025 23:51:09 +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>,
	Timothy Hayes <timothy.hayes@....com>,
	Sascha Bischoff <Sascha.Bischoff@....com>,
	Raghavendra Rao Ananta <rananta@...gle.com>,
	Osama Abdelkader <osama.abdelkader@...il.com>,
	Jing Zhang <jingzhangos@...gle.com>,
	linux-arm-kernel@...ts.infradead.org,
	kvmarm@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH] KVM: arm64: vgic: simplify vgic_v3_redist_region_full()

Simplify the function by converting the if-return-false pattern to a
direct boolean expression return, making the code more concise and
readable.

Signed-off-by: Osama Abdelkader <osama.abdelkader@...il.com>
---
 arch/arm64/kvm/vgic/vgic.h | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h
index 5f0fc96b4dc2..04dd2055e7df 100644
--- a/arch/arm64/kvm/vgic/vgic.h
+++ b/arch/arm64/kvm/vgic/vgic.h
@@ -382,10 +382,7 @@ static inline int vgic_v3_max_apr_idx(struct kvm_vcpu *vcpu)
 static inline bool
 vgic_v3_redist_region_full(struct vgic_redist_region *region)
 {
-	if (!region->count)
-		return false;
-
-	return (region->free_index >= region->count);
+	return region->count > 0 && region->free_index >= region->count;
 }
 
 struct vgic_redist_region *vgic_v3_rdist_free_slot(struct list_head *rdregs);
-- 
2.43.0