dma-debug: add initialization code

Impact: add code to initialize dma-debug core data structures

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index ce4ace707c7b..345d5387a30d 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -20,6 +20,20 @@
 #ifndef __DMA_DEBUG_H
 #define __DMA_DEBUG_H
 
+#include <linux/types.h>
+
 struct device;
 
+#ifdef CONFIG_DMA_API_DEBUG
+
+extern void dma_debug_init(u32 num_entries);
+
+#else /* CONFIG_DMA_API_DEBUG */
+
+static inline void dma_debug_init(u32 num_entries)
+{
+}
+
+#endif /* CONFIG_DMA_API_DEBUG */
+
 #endif /* __DMA_DEBUG_H */