diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-07-19 15:02:30 +0200 |
|---|---|---|
| committer | Stafford Horne <shorne@gmail.com> | 2018-07-21 06:49:48 +0200 |
| commit | dcc9c91944129c9541cafe3112e69c1bdd328701 (patch) | |
| tree | ff3ab1d9d5bb57cbc71066b8968b778513aa5fb1 /arch/openrisc | |
| parent | openrisc: remove the sync_single_for_cpu DMA operation (diff) | |
| download | linux-dcc9c91944129c9541cafe3112e69c1bdd328701.tar.xz linux-dcc9c91944129c9541cafe3112e69c1bdd328701.zip | |
openrisc: remove the no-op unmap_page and unmap_sg DMA operations
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Diffstat (limited to 'arch/openrisc')
| -rw-r--r-- | arch/openrisc/kernel/dma.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c index 47601274abf7..7cadff93d179 100644 --- a/arch/openrisc/kernel/dma.c +++ b/arch/openrisc/kernel/dma.c @@ -171,14 +171,6 @@ or1k_map_page(struct device *dev, struct page *page, return addr; } -static void -or1k_unmap_page(struct device *dev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction dir, - unsigned long attrs) -{ - /* Nothing special to do here... */ -} - static int or1k_map_sg(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir, @@ -196,19 +188,6 @@ or1k_map_sg(struct device *dev, struct scatterlist *sg, } static void -or1k_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir, - unsigned long attrs) -{ - struct scatterlist *s; - int i; - - for_each_sg(sg, s, nents, i) { - or1k_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir, 0); - } -} - -static void or1k_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction dir) @@ -226,9 +205,7 @@ const struct dma_map_ops or1k_dma_map_ops = { .alloc = or1k_dma_alloc, .free = or1k_dma_free, .map_page = or1k_map_page, - .unmap_page = or1k_unmap_page, .map_sg = or1k_map_sg, - .unmap_sg = or1k_unmap_sg, .sync_single_for_device = or1k_sync_single_for_device, }; EXPORT_SYMBOL(or1k_dma_map_ops); |