dma-mapping: remove DMA_MASK_NONE

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>

diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 09d06b082f8b8c8911548c300cd56898e45efbc5..72114907c0e4d20f28168b33f313e86c5990d987 100644 (file)
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -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))

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index bb138ac6f5e63e89d584e7ada680abf1850d7b8e..e074588d753ff65cf56fe6d521cf653215675502 100644 (file)
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -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) ||