microblaze: Do not setup empty unmap_sg function
No reason to setup empty function. Core is checking
if this function should be called or not.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 8f9b995..4633c36 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -68,12 +68,6 @@
return nents;
}
-static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction direction,
- struct dma_attrs *attrs)
-{
-}
-
static int dma_direct_dma_supported(struct device *dev, u64 mask)
{
return 1;
@@ -164,7 +158,6 @@
.alloc = dma_direct_alloc_coherent,
.free = dma_direct_free_coherent,
.map_sg = dma_direct_map_sg,
- .unmap_sg = dma_direct_unmap_sg,
.dma_supported = dma_direct_dma_supported,
.map_page = dma_direct_map_page,
.unmap_page = dma_direct_unmap_page,