[PATCH 7/9] ia64/sn2: remove no-ops dma sync methods

Christoph Hellwig
2018-08-01T16:02:50Z

These do nothing but duplicating an assert that would have triggered
earlier on setting the dma mask, so remove them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/ia64/sn/pci/pci_dma.c | 29 -----------------------------
1 file changed, 29 deletions(-)

diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index 74c934a997bb..3b944fba0a3e 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -314,31 +314,6 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
return nhwentries;
}

-static void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction dir)
-{
- BUG_ON(!dev_is_pci(dev));
-}
-
-static void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
- size_t size,
- enum dma_data_direction dir)
-{
- BUG_ON(!dev_is_pci(dev));
-}
-
-static void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
- int nelems, enum dma_data_direction dir)
-{
- BUG_ON(!dev_is_pci(dev));
-}
-
-static void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
- int nelems, enum dma_data_direction dir)
-{
- BUG_ON(!dev_is_pci(dev));
-}
-
static int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
return 0;
@@ -467,10 +442,6 @@ static struct dma_map_ops sn_dma_ops = {
.unmap_page = sn_dma_unmap_page,
.map_sg = sn_dma_map_sg,
.unmap_sg = sn_dma_unmap_sg,
- .sync_single_for_cpu = sn_dma_sync_single_for_cpu,
- .sync_sg_for_cpu = sn_dma_sync_sg_for_cpu,
- .sync_single_for_device = sn_dma_sync_single_for_device,
- .sync_sg_for_device = sn_dma_sync_sg_for_device,
.mapping_error = sn_dma_mapping_error,
.dma_supported = sn_dma_supported,
};
--
2.18.0