dma-debug: add add checking for map/unmap_sg
Impact: add debug callbacks for dma_{un}map_sg
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index 65f7352..ee9fdb3 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -23,6 +23,7 @@
#include <linux/types.h>
struct device;
+struct scatterlist;
#ifdef CONFIG_DMA_API_DEBUG
@@ -36,6 +37,11 @@
extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
size_t size, int direction, bool map_single);
+extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
+ int nents, int mapped_ents, int direction);
+
+extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
+ int nelems, int dir);
#else /* CONFIG_DMA_API_DEBUG */
@@ -56,6 +62,16 @@
{
}
+static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
+ int nents, int mapped_ents, int direction)
+{
+}
+
+static inline void debug_dma_unmap_sg(struct device *dev,
+ struct scatterlist *sglist,
+ int nelems, int dir)
+{
+}
#endif /* CONFIG_DMA_API_DEBUG */