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=-12.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 789B5C47426 for ; Wed, 30 Sep 2020 16:09:40 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 06A8221481 for ; Wed, 30 Sep 2020 16:09:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="P3xuRpLp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 06A8221481 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id C901487231; Wed, 30 Sep 2020 16:09:39 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8a6sw3d3de0I; Wed, 30 Sep 2020 16:09:39 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by hemlock.osuosl.org (Postfix) with ESMTP id 632AA87222; Wed, 30 Sep 2020 16:09:39 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 5E6A7C0893; Wed, 30 Sep 2020 16:09:39 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id AF657C0051 for ; Wed, 30 Sep 2020 16:09:37 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 9D1AE87233 for ; Wed, 30 Sep 2020 16:09:37 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9ITNIuwYJ8kF for ; Wed, 30 Sep 2020 16:09:36 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by hemlock.osuosl.org (Postfix) with ESMTPS id 9E6228721B for ; Wed, 30 Sep 2020 16:09:36 +0000 (UTC) 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=jLVH2ETUcna4vnSJJM6qywpgQCBtyE661AcFkWsPNQc=; b=P3xuRpLpWkE6u3BGD3WvuVniKG aCLFBV/3BO8MRlfymLp6EYoYWaJKOi3sDy8xSAcdLIQon++6H2oEFkBJl22oNVEG5rJXr5NabZFML LSxzhjXq9CzGRjzdKjCMmbnQsoq7H4C1AQYThJOjWCPwVE/W7YOgEiYUk7jb8QDaxiKmM4pkI2JDN gVlveu0fpxAFqCweZzvqmpgA0yGT3KP+lz0wbFbyVAFtoLHlFRxa6v7SF8bV4FVGvXeEawkjaI1r0 uCQy4mWJlE9d4k6Lv/wNJMHdNhtEyW9NBA1XvdjHzweDMC+sFSChe+gxXfai2OeNX9yi2YKN07Ea5 qVyfOXGQ==; Received: from [2001:4bb8:180:7b62:c70:4a89:bc61:4] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kNefb-0003E1-2j; Wed, 30 Sep 2020 16:09:31 +0000 From: Christoph Hellwig To: Mauro Carvalho Chehab , Marek Szyprowski , Tomasz Figa , iommu@lists.linux-foundation.org Subject: [PATCH 7/8] dma-iommu: remove __iommu_dma_mmap Date: Wed, 30 Sep 2020 18:09:16 +0200 Message-Id: <20200930160917.1234225-8-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200930160917.1234225-1-hch@lst.de> References: <20200930160917.1234225-1-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 Cc: linux-media@vger.kernel.org, Robin Murphy , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" The function has a single caller, so open code it there and take advantage of the precalculated page count variable. Signed-off-by: Christoph Hellwig --- drivers/iommu/dma-iommu.c | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index b363b20a9f41ce..7922f545cd5eef 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -656,21 +656,6 @@ static void *iommu_dma_alloc_remap(struct device *dev, size_t size, return NULL; } -/** - * __iommu_dma_mmap - Map a buffer into provided user VMA - * @pages: Array representing buffer from __iommu_dma_alloc() - * @size: Size of buffer in bytes - * @vma: VMA describing requested userspace mapping - * - * Maps the pages of the buffer in @pages into @vma. The caller is responsible - * for verifying the correct size and protection of @vma beforehand. - */ -static int __iommu_dma_mmap(struct page **pages, size_t size, - struct vm_area_struct *vma) -{ - return vm_map_pages(vma, pages, PAGE_ALIGN(size) >> PAGE_SHIFT); -} - static void iommu_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction dir) { @@ -1075,7 +1060,7 @@ static int iommu_dma_mmap(struct device *dev, struct vm_area_struct *vma, struct page **pages = dma_common_find_pages(cpu_addr); if (pages) - return __iommu_dma_mmap(pages, size, vma); + return vm_map_pages(vma, pages, nr_pages); pfn = vmalloc_to_pfn(cpu_addr); } else { pfn = page_to_pfn(virt_to_page(cpu_addr)); -- 2.28.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu