MIPS: mm: remove mips_dma_mapping_error

Web:        https://git.kernel.org/torvalds/c/7d8c6d6a180ae776070d26dc58f3ecb5560f9a48
Commit:     7d8c6d6a180ae776070d26dc58f3ecb5560f9a48
Parent:     6538953f1e1f8001efde1cee8eb61f5ef8ec7b5d
Refname:    refs/heads/master
Author:     Felix Fietkau <[email protected]>
AuthorDate: Tue Dec 5 12:50:33 2017 +0100
Committer:  James Hogan <[email protected]>
CommitDate: Tue Jan 9 22:30:02 2018 +0000

    MIPS: mm: remove mips_dma_mapping_error
    
    dma_mapping_error() already checks if ops->mapping_error is a null
    pointer
    
    Signed-off-by: Felix Fietkau <[email protected]>
    Cc: [email protected]
    Patchwork: https://patchwork.linux-mips.org/patch/17881/
    Signed-off-by: James Hogan <[email protected]>
---
 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;
-}