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dma-mapping: remove DMA_MASK_NONE

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This value is only used by a PCMCIA driver and not very useful.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dominik Brodowski <linux@dominikbrodwski.net>
This commit is contained in:
Christoph Hellwig 2020-09-11 09:29:50 +02:00
parent b9bb694b9f
commit 7ae10eb903
2 changed files with 1 additions and 3 deletions
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2
include/linux/dma-mapping.h
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@ -138,8 +138,6 @@ extern const struct dma_map_ops dma_dummy_ops;
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
#define DMA_MASK_NONE 0x0ULL
static inline int valid_dma_direction(int dma_direction)
{
return ((dma_direction == DMA_BIDIRECTIONAL) ||