From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751436AbdH0QLD (ORCPT ); Sun, 27 Aug 2017 12:11:03 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:55942 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751208AbdH0QK7 (ORCPT ); Sun, 27 Aug 2017 12:10:59 -0400 From: Christoph Hellwig To: iommu@lists.linux-foundation.org Cc: Marek Szyprowski , Robin Murphy , Michal Simek , David Howells , Guan Xuetao , Chris Zankel , Max Filippov , x86@kernel.org, linux-mips@linux-mips.org, linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-xtensa@linux-xtensa.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 07/12] mn10300: make dma_cache_sync a no-op Date: Sun, 27 Aug 2017 18:10:27 +0200 Message-Id: <20170827161032.22772-8-hch@lst.de> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170827161032.22772-1-hch@lst.de> References: <20170827161032.22772-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org mn10300 does not implement DMA_ATTR_NON_CONSISTENT allocations, so it doesn't make any sense to do any work in dma_cache_sync given that it must be a no-op when dma_alloc_attrs returns coherent memory. Signed-off-by: Christoph Hellwig --- arch/mn10300/include/asm/dma-mapping.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h index 737ef574b3ea..dc24163b190f 100644 --- a/arch/mn10300/include/asm/dma-mapping.h +++ b/arch/mn10300/include/asm/dma-mapping.h @@ -11,9 +11,6 @@ #ifndef _ASM_DMA_MAPPING_H #define _ASM_DMA_MAPPING_H -#include -#include - extern const struct dma_map_ops mn10300_dma_ops; static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) @@ -25,7 +22,6 @@ static inline void dma_cache_sync(void *vaddr, size_t size, enum dma_data_direction direction) { - mn10300_dcache_flush_inv(); } #endif -- 2.11.0