This patch #if 0's the unused dma_async_memcpy_buf_to_buf().

Signed-off-by: Adrian Bunk <bunk@kernel.org>

---

 drivers/dma/dmaengine.c   |    2 ++
 include/linux/dmaengine.h |    2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

b91933344bed48adf2b64ca0f98c45b92ef69b79 
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 8248992..f0cda56 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -459,6 +459,7 @@ void dma_async_device_unregister(struct dma_device *device)
 }
 EXPORT_SYMBOL(dma_async_device_unregister);
 
+#if 0
 /**
  * dma_async_memcpy_buf_to_buf - offloaded copy between virtual addresses
  * @chan: DMA channel to offload copy to
@@ -501,6 +502,7 @@ dma_async_memcpy_buf_to_buf(struct dma_chan *chan, void *dest,
 	return cookie;
 }
 EXPORT_SYMBOL(dma_async_memcpy_buf_to_buf);
+#endif  /*  0  */
 
 /**
  * dma_async_memcpy_buf_to_pg - offloaded copy from address to page
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index a3b6035..75bdd65 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -302,8 +302,6 @@ struct dma_device {
 void dma_async_client_register(struct dma_client *client);
 void dma_async_client_unregister(struct dma_client *client);
 void dma_async_client_chan_request(struct dma_client *client);
-dma_cookie_t dma_async_memcpy_buf_to_buf(struct dma_chan *chan,
-	void *dest, void *src, size_t len);
 dma_cookie_t dma_async_memcpy_buf_to_pg(struct dma_chan *chan,
 	struct page *page, unsigned int offset, void *kdata, size_t len);
 dma_cookie_t dma_async_memcpy_pg_to_pg(struct dma_chan *chan,

-
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