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@@ -967,7 +967,8 @@ enum dma_status dma_sync_wait(struct dma_chan *chan, dma_cookie_t cookie);
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#ifdef CONFIG_DMA_ENGINE
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enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx);
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void dma_issue_pending_all(void);
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-struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask, dma_filter_fn fn, void *fn_param);
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+struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
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+ dma_filter_fn fn, void *fn_param);
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struct dma_chan *dma_request_slave_channel(struct device *dev, char *name);
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void dma_release_channel(struct dma_chan *chan);
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#else
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@@ -978,7 +979,7 @@ static inline enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descript
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static inline void dma_issue_pending_all(void)
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{
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}
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-static inline struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask,
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+static inline struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
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dma_filter_fn fn, void *fn_param)
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{
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return NULL;
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@@ -1005,9 +1006,9 @@ struct dma_chan *net_dma_find_channel(void);
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__dma_request_slave_channel_compat(&(mask), x, y, dev, name)
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static inline struct dma_chan
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-*__dma_request_slave_channel_compat(dma_cap_mask_t *mask, dma_filter_fn fn,
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- void *fn_param, struct device *dev,
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- char *name)
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+*__dma_request_slave_channel_compat(const dma_cap_mask_t *mask,
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+ dma_filter_fn fn, void *fn_param,
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+ struct device *dev, char *name)
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{
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struct dma_chan *chan;
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