From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3y5wcP1BjczDql8 for ; Tue, 3 Oct 2017 21:43:31 +1100 (AEDT) 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 03/11] frv: make dma_cache_sync a no-op Date: Tue, 3 Oct 2017 12:43:03 +0200 Message-Id: <20171003104311.10058-4-hch@lst.de> In-Reply-To: <20171003104311.10058-1-hch@lst.de> References: <20171003104311.10058-1-hch@lst.de> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , frv 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/frv/include/asm/dma-mapping.h | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h index 354900917585..da0e5c9744c4 100644 --- a/arch/frv/include/asm/dma-mapping.h +++ b/arch/frv/include/asm/dma-mapping.h @@ -18,7 +18,6 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { - flush_write_buffers(); } #endif /* _ASM_DMA_MAPPING_H */ -- 2.14.1