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authorLars-Peter Clausen <lars@metafoo.de>2013-03-25 16:23:52 +0400
committerVinod Koul <vinod.koul@intel.com>2013-04-15 08:21:18 +0400
commita53e28da574a40bcc9f78f5d0b0b60570182595b (patch)
tree9b39b12b7e52518ca08a351112ba69a8229fa907 /include/linux/dmaengine.h
parenta7e340657a04777077a86e235f7074e8e261ac2e (diff)
downloadlinux-a53e28da574a40bcc9f78f5d0b0b60570182595b.tar.xz
dma: Make the 'mask' parameter of __dma_request_channel const
The 'mask' parameter is not modified in __dma_request_channel and really shouldn't be. Make this explicit by making the parameter const. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'include/linux/dmaengine.h')
-rw-r--r--include/linux/dmaengine.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 91ac8da25020..dd6d21b335c8 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -967,7 +967,8 @@ enum dma_status dma_sync_wait(struct dma_chan *chan, dma_cookie_t cookie);
#ifdef CONFIG_DMA_ENGINE
enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx);
void dma_issue_pending_all(void);
-struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask, dma_filter_fn fn, void *fn_param);
+struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
+ dma_filter_fn fn, void *fn_param);
struct dma_chan *dma_request_slave_channel(struct device *dev, char *name);
void dma_release_channel(struct dma_chan *chan);
#else
@@ -978,7 +979,7 @@ static inline enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descript
static inline void dma_issue_pending_all(void)
{
}
-static inline struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask,
+static inline struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
dma_filter_fn fn, void *fn_param)
{
return NULL;
@@ -1005,9 +1006,9 @@ struct dma_chan *net_dma_find_channel(void);
__dma_request_slave_channel_compat(&(mask), x, y, dev, name)
static inline struct dma_chan
-*__dma_request_slave_channel_compat(dma_cap_mask_t *mask, dma_filter_fn fn,
- void *fn_param, struct device *dev,
- char *name)
+*__dma_request_slave_channel_compat(const dma_cap_mask_t *mask,
+ dma_filter_fn fn, void *fn_param,
+ struct device *dev, char *name)
{
struct dma_chan *chan;