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 X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B951EC43219 for ; Wed, 1 May 2019 10:38:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 908AE20835 for ; Wed, 1 May 2019 10:38:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726243AbfEAKiS (ORCPT ); Wed, 1 May 2019 06:38:18 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:57718 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725782AbfEAKiS (ORCPT ); Wed, 1 May 2019 06:38:18 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id BBCEB80D; Wed, 1 May 2019 03:38:17 -0700 (PDT) Received: from [10.1.37.14] (unknown [10.1.37.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id BF9383F719; Wed, 1 May 2019 03:38:14 -0700 (PDT) From: Jean-Philippe Brucker Subject: Re: [PATCH v7 05/23] iommu: Introduce cache_invalidate API To: Eric Auger , eric.auger.pro@gmail.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, joro@8bytes.org, alex.williamson@redhat.com, jacob.jun.pan@linux.intel.com, yi.l.liu@intel.com, will.deacon@arm.com, robin.murphy@arm.com Cc: peter.maydell@linaro.org, kevin.tian@intel.com, vincent.stehle@arm.com, ashok.raj@intel.com, marc.zyngier@arm.com, christoffer.dall@arm.com References: <20190408121911.24103-1-eric.auger@redhat.com> <20190408121911.24103-6-eric.auger@redhat.com> Message-ID: Date: Wed, 1 May 2019 11:38:13 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20190408121911.24103-6-eric.auger@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 08/04/2019 13:18, Eric Auger wrote: > +int iommu_cache_invalidate(struct iommu_domain *domain, struct device *dev, > + struct iommu_cache_invalidate_info *inv_info) > +{ > + int ret = 0; > + > + if (unlikely(!domain->ops->cache_invalidate)) > + return -ENODEV; > + > + ret = domain->ops->cache_invalidate(domain, dev, inv_info); > + > + return ret; Nit: you don't really need ret The UAPI looks good to me, so Reviewed-by: Jean-Philippe Brucker