[PATCH 1/2] MIPS: mm: remove mips_dma_mapping_error

[Felix Fietkau <nbd@nbd.name>]

dma_mapping_error() already checks if ops->mapping_error is a null
pointer

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 arch/mips/mm/dma-default.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index e3e94d05f0fd..1af0cd90cc34 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -373,11 +373,6 @@ static void mips_dma_sync_sg_for_device(struct device *dev,
        }
 }
 
-static int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-       return 0;
-}
-
 static int mips_dma_supported(struct device *dev, u64 mask)
 {
        return plat_dma_supported(dev, mask);
@@ -404,7 +399,6 @@ static const struct dma_map_ops mips_default_dma_map_ops = {
        .sync_single_for_device = mips_dma_sync_single_for_device,
        .sync_sg_for_cpu = mips_dma_sync_sg_for_cpu,
        .sync_sg_for_device = mips_dma_sync_sg_for_device,
-       .mapping_error = mips_dma_mapping_error,
        .dma_supported = mips_dma_supported,
        .cache_sync = mips_dma_cache_sync,
 };
-- 
2.14.2