dma-mapping: mark dma_sync_single and dma_sync_sg as deprecated

dma_sync_single() and dma_sync_sg() have been described as "Backwards
compat, remove in 2.7.x" for a long time (since 2.6.5).

This marks dma_sync_single() and dma_sync_sg() as deprecated so the users
get notified before removing them.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 14 insertions, 3 deletions

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 38f5608d2460..07dfd460d286 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -109,9 +109,20 @@ static inline int is_buffer_dma_capable(u64 mask, dma_addr_t addr, size_t size)
 #include <asm-generic/dma-mapping-broken.h>
 #endif
 
-/* Backwards compat, remove in 2.7.x */
-#define dma_sync_single         dma_sync_single_for_cpu
-#define dma_sync_sg             dma_sync_sg_for_cpu
+/* for backwards compatibility, removed soon */
+static inline void __deprecated dma_sync_single(struct device *dev,
+                                                dma_addr_t addr, size_t size,
+                                                enum dma_data_direction dir)
+{
+        dma_sync_single_for_cpu(dev, addr, size, dir);
+}
+
+static inline void __deprecated dma_sync_sg(struct device *dev,
+                                            struct scatterlist *sg, int nelems,
+                                            enum dma_data_direction dir)
+{
+        dma_sync_sg_for_cpu(dev, sg, nelems, dir);
+}
 
 static inline u64 dma_get_mask(struct device *dev)
 {