Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754329AbdHUUiQ (ORCPT ); Mon, 21 Aug 2017 16:38:16 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44464 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754199AbdHUUiK (ORCPT ); Mon, 21 Aug 2017 16:38:10 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 9E76E46298 Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=rkrcmar@redhat.com From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-mips@linux-mips.org, kvm-ppc@vger.kernel.org, linux-s390@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Paolo Bonzini , David Hildenbrand , Christoffer Dall , Marc Zyngier , Christian Borntraeger , Cornelia Huck , James Hogan , Paul Mackerras , Alexander Graf Subject: [PATCH RFC v3 2/9] KVM: arm/arm64: fix vcpu self-detection in vgic_v3_dispatch_sgi() Date: Mon, 21 Aug 2017 22:35:23 +0200 Message-Id: <20170821203530.9266-3-rkrcmar@redhat.com> In-Reply-To: <20170821203530.9266-1-rkrcmar@redhat.com> References: <20170821203530.9266-1-rkrcmar@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Mon, 21 Aug 2017 20:38:09 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 969 Lines: 31 The index in kvm->vcpus array and vcpu->vcpu_id are very different things. Comparing struct kvm_vcpu pointers is a sure way to know. Signed-off-by: Radim Krčmář --- virt/kvm/arm/vgic/vgic-mmio-v3.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/virt/kvm/arm/vgic/vgic-mmio-v3.c b/virt/kvm/arm/vgic/vgic-mmio-v3.c index 408ef06638fc..9d4b69b766ec 100644 --- a/virt/kvm/arm/vgic/vgic-mmio-v3.c +++ b/virt/kvm/arm/vgic/vgic-mmio-v3.c @@ -797,7 +797,6 @@ void vgic_v3_dispatch_sgi(struct kvm_vcpu *vcpu, u64 reg) u16 target_cpus; u64 mpidr; int sgi, c; - int vcpu_id = vcpu->vcpu_id; bool broadcast; sgi = (reg & ICC_SGI1R_SGI_ID_MASK) >> ICC_SGI1R_SGI_ID_SHIFT; @@ -821,7 +820,7 @@ void vgic_v3_dispatch_sgi(struct kvm_vcpu *vcpu, u64 reg) break; /* Don't signal the calling VCPU */ - if (broadcast && c == vcpu_id) + if (broadcast && c_vcpu == vcpu) continue; if (!broadcast) { -- 2.13.3