linux-kernel - [PATCH] KVM: arm64: vgic: Remove duplicate check in update_affinity

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 23 Sep 2022 14:54:47 +0800
From:   Gavin Shan <gshan@...hat.com>
To:     kvmarm@...ts.cs.columbia.edu
Cc:     linux-kernel@...r.kernel.org, maz@...nel.org, will@...nel.org,
        eric.auger@...hat.com, yuzhe@...china.com, oliver.upton@...ux.dev,
        shan.gavin@...il.com
Subject: [PATCH] KVM: arm64: vgic: Remove duplicate check in update_affinity_collection()

The ITS collection is guranteed to be !NULL when update_affinity_collection()
is called. So we needn't check ITE's collection with NULL because the
check has been included to the later one.

Remove the duplicate check in update_affinity_collection().

Signed-off-by: Gavin Shan <gshan@...hat.com>
---
 arch/arm64/kvm/vgic/vgic-its.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c
index 9d3299a70242..24d7778d1ce6 100644
--- a/arch/arm64/kvm/vgic/vgic-its.c
+++ b/arch/arm64/kvm/vgic/vgic-its.c
@@ -406,7 +406,7 @@ static void update_affinity_collection(struct kvm *kvm, struct vgic_its *its,
 	struct its_ite *ite;
 
 	for_each_lpi_its(device, ite, its) {
-		if (!ite->collection || coll != ite->collection)
+		if (ite->collection != coll)
 			continue;
 
 		update_affinity_ite(kvm, ite);
-- 
2.23.0