frv: dma-mapping: support debug_dma_mapping_error

Add support for debug_dma_mapping_error() call to avoid warning from debug_dma_unmap() interface when it checks for mapping error checked status. Without this patch, device driver failed to check map error warning is generated.

Signed-off-by Shuah Khan <[email protected]>

---
 arch/frv/include/asm/dma-mapping.h |    2 ++
 1 file changed, 2 insertions(+)

arch/frv/include/asm/dma-mapping.h +2 -0

index dfb8110..d8a8aac 100644
@@ -6,6 +6,7 @@
 #include <asm/cacheflush.h>
 #include <asm/scatterlist.h>
 #include <asm/io.h>
+#include <linux/dma-debug.h>
 
 /*
  * See Documentation/DMA-API.txt for the description of how the

@@ -97,6 +98,7 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nele
 static inline
 int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
+	debug_dma_mapping_error(dev, dma_addr);
 	return 0;
 }
 

Quoted 6 lines · Shuah Khan

Add support for debug_dma_mapping_error() call to avoid warning from debug_dma_unmap() interface when it checks for mapping error checked status. Without this patch, device driver failed to check map error warning is generated.

Signed-off-by Shuah Khan <[email protected]>

Please ignore this patch if frv doesn't use dma_map_page() and dma_map_single() from arch/mips/include/asm/dma-mapping.

frv defines dma_map_page() and dma_map_single() in arch/frv/mb93090-mb00/pci-dma.c and arch/frv/mb93090-mb00/pci-dma-nommu.c

-- Shuah

Quoted 14 lines

---
 arch/frv/include/asm/dma-mapping.h |    2 ++
 1 file changed, 2 insertions(+)

arch/frv/include/asm/dma-mapping.h +1 -0

index dfb8110..d8a8aac 100644
@@ -6,6 +6,7 @@
 #include <asm/cacheflush.h>
 #include <asm/scatterlist.h>
 #include <asm/io.h>
+#include <linux/dma-debug.h>
 

arch/frv/include/asm/dma-mapping.h void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nele · line 104

Quoted 10 lines

arch/frv/include/asm/dma-mapping.h +1 -0

 /*
  * See Documentation/DMA-API.txt for the description of how the

@@ -97,6 +98,7 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nele
 static inline
 int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
+	debug_dma_mapping_error(dev, dma_addr);
 	return 0;
 }