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authorChristoph Hellwig <hch@lst.de>2018-11-21 19:18:10 +0100
committerChristoph Hellwig <hch@lst.de>2018-12-06 06:56:44 -0800
commit608b9761a06089ac22bb157bc70d16e9df12ca7c (patch)
tree286052f7a2bb6190b77d3c3a6ac18859fd8d1c37 /arch/ia64
parent07256950cd69a31d79bfd605a7023c61cf09b161 (diff)
downloadlinux-608b9761a06089ac22bb157bc70d16e9df12ca7c.tar.bz2
ia64/sn: remove the mapping_error dma_map_ops method
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 <hch@lst.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/sn/pci/pci_dma.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index 4ce4ee4ef9f2..b7d42e4edc1f 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -196,7 +196,7 @@ static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page,
if (!dma_addr) {
printk(KERN_ERR "%s: out of ATEs\n", __func__);
- return 0;
+ return DMA_MAPPING_ERROR;
}
return dma_addr;
}
@@ -314,11 +314,6 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
return nhwentries;
}
-static int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
- return 0;
-}
-
static u64 sn_dma_get_required_mask(struct device *dev)
{
return DMA_BIT_MASK(64);
@@ -441,7 +436,6 @@ static struct dma_map_ops sn_dma_ops = {
.unmap_page = sn_dma_unmap_page,
.map_sg = sn_dma_map_sg,
.unmap_sg = sn_dma_unmap_sg,
- .mapping_error = sn_dma_mapping_error,
.dma_supported = sn_dma_supported,
.get_required_mask = sn_dma_get_required_mask,
};