From patchwork Tue Aug 24 14:46:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12455319 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=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 ADF86C4338F for ; Tue, 24 Aug 2021 15:06:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8A0B260231 for ; Tue, 24 Aug 2021 15:06:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238081AbhHXPGu (ORCPT ); Tue, 24 Aug 2021 11:06:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237966AbhHXPGt (ORCPT ); Tue, 24 Aug 2021 11:06:49 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A32CCC061757 for ; Tue, 24 Aug 2021 08:06:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=1VNBK0D56SUo2dHkmlJ33YIGrsDG4gY27rkWRbTafAE=; b=q26kwGeqzNjnNyXMahBApnKGVg ZjxvJLdz/wy2Q7+ALiU9bZ/G8E23b+XcbqRCAm7hKp5IQsoCB8xISiPkhyfJHUDP6690xsn02eahB he3Fdv+hJUidR4GC+FDIJiJa5FC53/XhL0OgiBu38gp5TJOSfTwciWMfLIGBvFPvsMDEsdGmr7X2H Xa8vJpIredgrVxeCxUmsgY6r95tiOawsAYvple5Z7m3mKN4e5rJGvd2xnsk7xRFv1IcnkCAQwTuBG gmacVL29Re4qoTMvAsDLAOoezewKA2IVk6tbt0NtxhFIQ7wEeMjTqeqMtLf+PHhkj7woyFvTK8pYo GoEezaGw==; Received: from [2001:4bb8:193:fd10:b8ba:7bad:652e:75fa] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mIXyW-00BCu1-Oh; Tue, 24 Aug 2021 15:04:39 +0000 From: Christoph Hellwig To: Alex Williamson Cc: Diana Craciun , Cornelia Huck , Kirti Wankhede , Eric Auger , Jason Gunthorpe , kvm@vger.kernel.org Subject: [PATCH 14/14] vfio/iommu_type1: remove IS_IOMMU_CAP_DOMAIN_IN_CONTAINER Date: Tue, 24 Aug 2021 16:46:49 +0200 Message-Id: <20210824144649.1488190-15-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210824144649.1488190-1-hch@lst.de> References: <20210824144649.1488190-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org IS_IOMMU_CAP_DOMAIN_IN_CONTAINER just obsfucated the checks being performed, so open code it in the callers. Signed-off-by: Christoph Hellwig Reviewed-by: Jason Gunthorpe --- drivers/vfio/vfio_iommu_type1.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index 205f13c05b236e..42bd902243eca5 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -144,9 +144,6 @@ struct vfio_regions { size_t len; }; -#define IS_IOMMU_CAP_DOMAIN_IN_CONTAINER(iommu) \ - (!list_empty(&iommu->domain_list)) - #define DIRTY_BITMAP_BYTES(n) (ALIGN(n, BITS_PER_TYPE(u64)) / BITS_PER_BYTE) /* @@ -884,7 +881,7 @@ static int vfio_iommu_type1_pin_pages(void *iommu_data, * already pinned and accounted. Accounting should be done if there is no * iommu capable domain in the container. */ - do_accounting = !IS_IOMMU_CAP_DOMAIN_IN_CONTAINER(iommu); + do_accounting = list_empty(&iommu->domain_list); for (i = 0; i < npage; i++) { struct vfio_pfn *vpfn; @@ -973,7 +970,7 @@ static int vfio_iommu_type1_unpin_pages(void *iommu_data, mutex_lock(&iommu->lock); - do_accounting = !IS_IOMMU_CAP_DOMAIN_IN_CONTAINER(iommu); + do_accounting = list_empty(&iommu->domain_list); for (i = 0; i < npage; i++) { struct vfio_dma *dma; dma_addr_t iova; @@ -1094,7 +1091,7 @@ static long vfio_unmap_unpin(struct vfio_iommu *iommu, struct vfio_dma *dma, if (!dma->size) return 0; - if (!IS_IOMMU_CAP_DOMAIN_IN_CONTAINER(iommu)) + if (list_empty(&iommu->domain_list)) return 0; /* @@ -1671,7 +1668,7 @@ static int vfio_dma_do_map(struct vfio_iommu *iommu, vfio_link_dma(iommu, dma); /* Don't pin and map if container doesn't contain IOMMU capable domain*/ - if (!IS_IOMMU_CAP_DOMAIN_IN_CONTAINER(iommu)) + if (list_empty(&iommu->domain_list)) dma->size = size; else ret = vfio_pin_map_dma(iommu, dma, size); @@ -2477,7 +2474,7 @@ static void vfio_iommu_type1_detach_group(void *iommu_data, kfree(group); if (list_empty(&iommu->mediated_groups) && - !IS_IOMMU_CAP_DOMAIN_IN_CONTAINER(iommu)) { + list_empty(&iommu->domain_list)) { WARN_ON(iommu->notifier.head); vfio_iommu_unmap_unpin_all(iommu); }