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dma-noop: remove dma_supported and mapping_error methods

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These just duplicate the default behavior if no method is provided.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2017-05-22 11:03:30 +02:00
parent b02c2b0bfd
commit 050d228a74
1 changed files with 0 additions and 12 deletions
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12
lib/dma-noop.c
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@ -54,23 +54,11 @@ static int dma_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nent
return nents; return nents;
} }
static int dma_noop_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
return 0;
}
static int dma_noop_supported(struct device *dev, u64 mask)
{
return 1;
}
const struct dma_map_ops dma_noop_ops = { const struct dma_map_ops dma_noop_ops = {
.alloc = dma_noop_alloc, .alloc = dma_noop_alloc,
.free = dma_noop_free, .free = dma_noop_free,
.map_page = dma_noop_map_page, .map_page = dma_noop_map_page,
.map_sg = dma_noop_map_sg, .map_sg = dma_noop_map_sg,
.mapping_error = dma_noop_mapping_error,
.dma_supported = dma_noop_supported,
}; };
EXPORT_SYMBOL(dma_noop_ops); EXPORT_SYMBOL(dma_noop_ops);