From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F1292CD6E5D for ; Fri, 5 Jun 2026 06:02:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=mOltCJFAEiXOMn/JouwewzAaDuJLAap1VZFGpCvHcIA=; b=H2+6VZtkbjdt9KIzEINmQHa/dI yCVqT/CyLZ1JrXOkOxOVUUewBb82YC1Dinh+C3AeXHHq/7Okg2WOraaSaRZGLENaOX2ni0jGQhjez 9DrT0IksHdTyoCGaJNd6ok27D/nr2wV0GERnaovzN9bPoAGs7FM0VFaJEWXT0TqQ/lt1PsHn/TQ8K 5w5kBOCTXZ8+ZAYDd3c9sHcmdUwP1vJX7A7hTJ8/Hgw4dXx7NqeYAotGKyhjUrULsDp2Dnl/OeFGa aqbA6zHQMrPGVsg6dXWNXs9LCTO5aQXJrplkDRtKlIO+zHncCcoeWOUDbHnyFQ+cltDLWDXHnEFrj 2PuXmgUw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wVNcx-000000008Fd-2hee; Fri, 05 Jun 2026 06:01:55 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wVNcw-000000008FX-3ZaQ for linux-arm-kernel@lists.infradead.org; Fri, 05 Jun 2026 06:01:54 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 4E9D0600AA; Fri, 5 Jun 2026 06:01:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E51E01F00893; Fri, 5 Jun 2026 06:01:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780639314; bh=mOltCJFAEiXOMn/JouwewzAaDuJLAap1VZFGpCvHcIA=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=ewkGhwdXA3jXxCUU/ZDD+xelPAyMLHoLodsabcEAwbdwR+baNzCAIcq0KXv9m5DRt Gk4+HDVIIpTnXDWc1cfBMqDZVD3jZa/T/QlgOmJTHPKjeYBowRuwmG86MXPFwMFreY K+FVNdCiNitq+7J9mgYhjt6zEgCIAIWMYATyXTEmdPzZGNauwJ02p7tX/jupEooyDR rJHCSZ5Xayl+TEkTsezpd903WaFRxGLyUiRw1kOAfehkDv7sYuWQtWeApJXqRSoAxz usC4diPpSx8T5WjmvGzhoQvt5ofjR7s8CNpFrogDZ9fhrKqNT03ZgSKbDMcmWxeDpj 6S6t0PHSdDEPA== Date: Thu, 4 Jun 2026 23:01:52 -0700 From: Oliver Upton To: Jackie Liu Cc: maz@kernel.org, linux-arm-kernel@lists.infradead.org, yuzenghui@huawei.com, will@kernel.org, kvmarm@lists.linux.dev Subject: Re: [PATCH v2] KVM/arm64: vgic-its: Make ABI commit helpers return void Message-ID: References: <20260604075147.53299-1-liu.yun@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260604075147.53299-1-liu.yun@linux.dev> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Jun 04, 2026 at 03:51:47PM +0800, Jackie Liu wrote: > From: Jackie Liu > > The return values of vgic_its_set_abi() and vgic_its_commit_v0() are always > 0 and do not carry useful error information. Simplify by changing them to > void. > > Suggested-by: Oliver Upton > Signed-off-by: Jackie Liu Reviewed-by: Oliver Upton Thanks, Oliver > --- > arch/arm64/kvm/vgic/vgic-its.c | 21 +++++++++------------ > 1 file changed, 9 insertions(+), 12 deletions(-) > > diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c > index 1d7e5d560af4..ca48b34dec20 100644 > --- a/arch/arm64/kvm/vgic/vgic-its.c > +++ b/arch/arm64/kvm/vgic/vgic-its.c > @@ -27,7 +27,7 @@ static struct kvm_device_ops kvm_arm_vgic_its_ops; > > static int vgic_its_save_tables_v0(struct vgic_its *its); > static int vgic_its_restore_tables_v0(struct vgic_its *its); > -static int vgic_its_commit_v0(struct vgic_its *its); > +static void vgic_its_commit_v0(struct vgic_its *its); > static int update_lpi_config(struct kvm *kvm, struct vgic_irq *irq, > struct kvm_vcpu *filter_vcpu, bool needs_inv); > > @@ -168,7 +168,7 @@ struct vgic_its_abi { > int ite_esz; > int (*save_tables)(struct vgic_its *its); > int (*restore_tables)(struct vgic_its *its); > - int (*commit)(struct vgic_its *its); > + void (*commit)(struct vgic_its *its); > }; > > #define ABI_0_ESZ 8 > @@ -192,13 +192,13 @@ inline const struct vgic_its_abi *vgic_its_get_abi(struct vgic_its *its) > return &its_table_abi_versions[its->abi_rev]; > } > > -static int vgic_its_set_abi(struct vgic_its *its, u32 rev) > +static void vgic_its_set_abi(struct vgic_its *its, u32 rev) > { > const struct vgic_its_abi *abi; > > its->abi_rev = rev; > abi = vgic_its_get_abi(its); > - return abi->commit(its); > + abi->commit(its); > } > > /* > @@ -472,7 +472,8 @@ static int vgic_mmio_uaccess_write_its_iidr(struct kvm *kvm, > > if (rev >= NR_ITS_ABIS) > return -EINVAL; > - return vgic_its_set_abi(its, rev); > + vgic_its_set_abi(its, rev); > + return 0; > } > > static unsigned long vgic_mmio_read_its_idregs(struct kvm *kvm, > @@ -1888,14 +1889,11 @@ static int vgic_its_create(struct kvm_device *dev, u32 type) > its->baser_coll_table = INITIAL_BASER_VALUE | > ((u64)GITS_BASER_TYPE_COLLECTION << GITS_BASER_TYPE_SHIFT); > dev->kvm->arch.vgic.propbaser = INITIAL_PROPBASER_VALUE; > - > dev->private = its; > > - ret = vgic_its_set_abi(its, NR_ITS_ABIS - 1); > - > + vgic_its_set_abi(its, NR_ITS_ABIS - 1); > mutex_unlock(&dev->kvm->arch.config_lock); > - > - return ret; > + return 0; > } > > static void vgic_its_destroy(struct kvm_device *kvm_dev) > @@ -2610,7 +2608,7 @@ static int vgic_its_restore_tables_v0(struct vgic_its *its) > return ret; > } > > -static int vgic_its_commit_v0(struct vgic_its *its) > +static void vgic_its_commit_v0(struct vgic_its *its) > { > const struct vgic_its_abi *abi; > > @@ -2623,7 +2621,6 @@ static int vgic_its_commit_v0(struct vgic_its *its) > > its->baser_device_table |= (GIC_ENCODE_SZ(abi->dte_esz, 5) > << GITS_BASER_ENTRY_SIZE_SHIFT); > - return 0; > } > > static void vgic_its_reset(struct kvm *kvm, struct vgic_its *its) > -- > 2.54.0 > >