x86: move dma_sync_sg_for_cpu to common header
i386 gets an empty function.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index 260538b..1a301d7 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -139,4 +139,13 @@
flush_write_buffers();
}
+static inline void
+dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
+ int nelems, int direction)
+{
+ BUG_ON(!valid_dma_direction(direction));
+ if (dma_ops->sync_sg_for_cpu)
+ dma_ops->sync_sg_for_cpu(hwdev, sg, nelems, direction);
+ flush_write_buffers();
+}
#endif