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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-09-25 20:05:02 (GMT) |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-09-25 22:39:24 (GMT) |
commit | 01135d92c1a540cd3370f7cf3d1c762320b85034 (patch) | |
tree | a6344d942a4f63cba85290a93008ce211996d27d /arch/arm/common | |
parent | 56f55f8b58a02e95b401cb50df05086cabeaeeb5 (diff) | |
download | linux-fsl-qoriq-01135d92c1a540cd3370f7cf3d1c762320b85034.tar.xz |
[ARM] dma: Reduce to one dma_map_sg()/dma_unmap_sg() implementation
No point having two of these; dma_map_page() can do all the work
for us.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/common')
-rw-r--r-- | arch/arm/common/dmabounce.c | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index c7f23ce..20d9673 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -444,50 +444,6 @@ dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, unmap_single(dev, dma_addr, size, dir); } -int -dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir) -{ - struct scatterlist *s; - int i; - - dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", - __func__, sg, nents, dir); - - BUG_ON(dir == DMA_NONE); - - for_each_sg(sg, s, nents, i) { - struct page *page = sg_page(s); - unsigned int offset = s->offset; - unsigned int length = s->length; - void *ptr = page_address(page) + offset; - - s->dma_address = map_single(dev, ptr, length, dir); - } - - return nents; -} - -void -dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir) -{ - struct scatterlist *s; - int i; - - dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", - __func__, sg, nents, dir); - - BUG_ON(dir == DMA_NONE); - - for_each_sg(sg, s, nents, i) { - dma_addr_t dma_addr = s->dma_address; - unsigned int length = s->length; - - unmap_single(dev, dma_addr, length, dir); - } -} - void dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_addr, unsigned long offset, size_t size, enum dma_data_direction dir) @@ -662,8 +618,6 @@ dmabounce_unregister_dev(struct device *dev) EXPORT_SYMBOL(dma_map_single); EXPORT_SYMBOL(dma_unmap_single); -EXPORT_SYMBOL(dma_map_sg); -EXPORT_SYMBOL(dma_unmap_sg); EXPORT_SYMBOL(dma_sync_sg_for_cpu); EXPORT_SYMBOL(dma_sync_sg_for_device); EXPORT_SYMBOL(dmabounce_register_dev); |