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-rw-r--r--include/linux/dmaengine.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index feee6ec..5336808 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -894,6 +894,17 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memset(
len, flags);
}
+static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memcpy(
+ struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
+ size_t len, unsigned long flags)
+{
+ if (!chan || !chan->device || !chan->device->device_prep_dma_memcpy)
+ return NULL;
+
+ return chan->device->device_prep_dma_memcpy(chan, dest, src,
+ len, flags);
+}
+
static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_sg(
struct dma_chan *chan,
struct scatterlist *dst_sg, unsigned int dst_nents,
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