From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Date: Thu, 22 Nov 2018 14:03:11 +0000 Subject: [PATCH 15/24] ia64/sba_iommu: remove the mapping_error dma_map_ops method Message-Id: <20181122140320.24080-16-hch@lst.de> List-Id: References: <20181122140320.24080-1-hch@lst.de> In-Reply-To: <20181122140320.24080-1-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: iommu@lists.linux-foundation.org Cc: Linus Torvalds , Jon Mason , Joerg Roedel , David Woodhouse , Marek Szyprowski , Robin Murphy , x86@kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org, xen-devel@lists.xenproject.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Return DMA_MAPPING_ERROR instead of 0 on a dma mapping failure and let the core dma-mapping code handle the rest. Signed-off-by: Christoph Hellwig --- arch/ia64/hp/common/sba_iommu.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index b953282d4704..0316af2cb426 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -974,7 +974,7 @@ static dma_addr_t sba_map_page(struct device *dev, struct page *page, pide = sba_alloc_range(ioc, dev, size); if (pide < 0) - return 0; + return DMA_MAPPING_ERROR; iovp = (dma_addr_t) pide << iovp_shift; @@ -2151,11 +2151,6 @@ static int sba_dma_supported (struct device *dev, u64 mask) return ((mask & 0xFFFFFFFFUL) = 0xFFFFFFFFUL); } -static int sba_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return 0; -} - __setup("nosbagart", nosbagart); static int __init @@ -2189,7 +2184,6 @@ const struct dma_map_ops sba_dma_ops = { .map_sg = sba_map_sg_attrs, .unmap_sg = sba_unmap_sg_attrs, .dma_supported = sba_dma_supported, - .mapping_error = sba_dma_mapping_error, }; void sba_dma_init(void) -- 2.19.1