Commit 7ae10eb9 authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

dma-mapping: remove DMA_MASK_NONE 



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

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Acked-by: default avatarDominik Brodowski <linux@dominikbrodwski.net>
parent b9bb694b

drivers/pcmcia/ds.c

+1 −1
Original line number Diff line number Diff line
@@ -516,7 +516,7 @@ static struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, 
	p_dev->dev.parent = s->dev.parent;

	p_dev->dev.release = pcmcia_release_dev;

	/* by default don't allow DMA */

	p_dev->dma_mask = DMA_MASK_NONE;

	p_dev->dma_mask = 0;

	p_dev->dev.dma_mask = &p_dev->dma_mask;

	dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no);

	if (!dev_name(&p_dev->dev))

include/linux/dma-mapping.h

+0 −2
Original line number Diff line number Diff line
@@ -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) ||