From patchwork Tue May 22 12:04:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 10418461 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 2E01B600CC for ; Tue, 22 May 2018 12:14:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1DE8E28823 for ; Tue, 22 May 2018 12:14:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 12B3C28C67; Tue, 22 May 2018 12:14:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A85EC28823 for ; Tue, 22 May 2018 12:14:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752586AbeEVMFl (ORCPT ); Tue, 22 May 2018 08:05:41 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:53868 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751314AbeEVMFf (ORCPT ); Tue, 22 May 2018 08:05:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=By986hH0zoJAF0egojGGYE/aPSnpLAiQwpxv7XTUbxM=; b=S6dUD3dFwuhtitJgWKKMTxp/F rma38hzjYvYUaILpB3IZmXtykGS9fYbcZliT0jEKRZwYg5zIyQ7AzKn3K82iGjExl5Yy5dQWUs6sc TcD2e3ak2aGBVXElgtHGVUfF6AqsH6Cgkrf6S85Z3FcfzG+HUtBVQnUarHt/iUgKMTA7Ytl5VIDLU CQhPKHKr6X7RUzyt7No26QSFKQFwtttr6/6Pj1mKj/ZvICMnCHI8rdMPRFVNST47vYqJ4RyMfnUxU SrnuIlS1LD9VkRfmYWA/aFyW9F3KcATmch/yGlEyi3Wb5Cwfpt9pvL5G6SK1Lmoazp931VYJk11Vg 6Jt6VwGXA==; Received: from 80-109-164-210.cable.dynamic.surfer.at ([80.109.164.210] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fL62a-0000S9-Tw; Tue, 22 May 2018 12:05:21 +0000 From: Christoph Hellwig To: iommu@lists.linux-foundation.org Cc: linux-arch@vger.kernel.org, Michal Simek , Greentime Hu , Vincent Chen , linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org, linux-m68k@lists.linux-m68k.org, nios2-dev@lists.rocketboards.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org Subject: [PATCH 13/25] openrisc: remove the no-op unmap_page and unmap_sg DMA operations Date: Tue, 22 May 2018 14:04:18 +0200 Message-Id: <20180522120430.28709-14-hch@lst.de> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180522120430.28709-1-hch@lst.de> References: <20180522120430.28709-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Christoph Hellwig --- arch/openrisc/kernel/dma.c | 23 ----------------------- 1 file changed, 23 deletions(-) diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c index 47601274abf7..7cadff93d179 100644 --- a/arch/openrisc/kernel/dma.c +++ b/arch/openrisc/kernel/dma.c @@ -171,14 +171,6 @@ or1k_map_page(struct device *dev, struct page *page, return addr; } -static void -or1k_unmap_page(struct device *dev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction dir, - unsigned long attrs) -{ - /* Nothing special to do here... */ -} - static int or1k_map_sg(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir, @@ -195,19 +187,6 @@ or1k_map_sg(struct device *dev, struct scatterlist *sg, return nents; } -static void -or1k_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir, - unsigned long attrs) -{ - struct scatterlist *s; - int i; - - for_each_sg(sg, s, nents, i) { - or1k_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir, 0); - } -} - static void or1k_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, @@ -226,9 +205,7 @@ const struct dma_map_ops or1k_dma_map_ops = { .alloc = or1k_dma_alloc, .free = or1k_dma_free, .map_page = or1k_map_page, - .unmap_page = or1k_unmap_page, .map_sg = or1k_map_sg, - .unmap_sg = or1k_unmap_sg, .sync_single_for_device = or1k_sync_single_for_device, }; EXPORT_SYMBOL(or1k_dma_map_ops);