--- zzzz-none-000/linux-3.10.107/include/linux/dmaengine.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/include/linux/dmaengine.h	2021-11-10 11:53:56.000000000 +0000
@@ -425,27 +425,35 @@
 };
 
 #ifndef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH
-static inline void txd_lock(struct dma_async_tx_descriptor *txd)
+static inline void txd_lock(struct dma_async_tx_descriptor *txd __maybe_unused)
 {
 }
-static inline void txd_unlock(struct dma_async_tx_descriptor *txd)
+static inline void txd_unlock(struct dma_async_tx_descriptor *txd
+			      __maybe_unused)
 {
 }
-static inline void txd_chain(struct dma_async_tx_descriptor *txd, struct dma_async_tx_descriptor *next)
+static inline void txd_chain(struct dma_async_tx_descriptor *txd
+			     __maybe_unused,
+			     struct dma_async_tx_descriptor *next
+			     __maybe_unused)
 {
 	BUG();
 }
-static inline void txd_clear_parent(struct dma_async_tx_descriptor *txd)
+static inline void txd_clear_parent(struct dma_async_tx_descriptor *txd
+				    __maybe_unused)
 {
 }
-static inline void txd_clear_next(struct dma_async_tx_descriptor *txd)
+static inline void txd_clear_next(struct dma_async_tx_descriptor *txd
+				  __maybe_unused)
 {
 }
-static inline struct dma_async_tx_descriptor *txd_next(struct dma_async_tx_descriptor *txd)
+static inline struct dma_async_tx_descriptor *txd_next(
+			struct dma_async_tx_descriptor *txd __maybe_unused)
 {
 	return NULL;
 }
-static inline struct dma_async_tx_descriptor *txd_parent(struct dma_async_tx_descriptor *txd)
+static inline struct dma_async_tx_descriptor *txd_parent(
+			struct dma_async_tx_descriptor *txd __maybe_unused)
 {
 	return NULL;
 }
@@ -833,7 +841,7 @@
 {
 }
 static inline struct dma_chan *
-async_dma_find_channel(enum dma_transaction_type type)
+async_dma_find_channel(enum dma_transaction_type type __maybe_unused)
 {
 	return NULL;
 }
@@ -972,24 +980,28 @@
 struct dma_chan *dma_request_slave_channel(struct device *dev, const char *name);
 void dma_release_channel(struct dma_chan *chan);
 #else
-static inline enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx)
+static inline enum dma_status dma_wait_for_async_tx(
+			struct dma_async_tx_descriptor *tx __maybe_unused)
 {
 	return DMA_SUCCESS;
 }
 static inline void dma_issue_pending_all(void)
 {
 }
-static inline struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
-					      dma_filter_fn fn, void *fn_param)
+static inline struct dma_chan *__dma_request_channel(
+				const dma_cap_mask_t *mask __maybe_unused,
+				dma_filter_fn fn __maybe_unused,
+				void *fn_param __maybe_unused)
 {
 	return NULL;
 }
-static inline struct dma_chan *dma_request_slave_channel(struct device *dev,
-							 const char *name)
+static inline struct dma_chan *dma_request_slave_channel(
+				struct device *dev __maybe_unused,
+				const char *name __maybe_unused)
 {
 	return NULL;
 }
-static inline void dma_release_channel(struct dma_chan *chan)
+static inline void dma_release_channel(struct dma_chan *chan __maybe_unused)
 {
 }
 #endif