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authorDan Williams <dan.j.williams@intel.com>2009-01-06 11:38:19 -0700
committerDan Williams <dan.j.williams@intel.com>2009-01-06 11:38:19 -0700
commit7dd602510128d7a64b11ff3b7d4f30ac8e3946ce (patch)
tree6a87f942c72b0b02d24db7144cad435211178fcc /include/linux/dmaengine.h
parentf27c580c3628d79b17f38976d842a6d7f3616e2e (diff)
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dmaengine: kill enum dma_state_client
DMA_NAK is now useless. We can just use a bool instead. Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/linux/dmaengine.h')
-rw-r--r--include/linux/dmaengine.h17
1 files changed, 3 insertions, 14 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index bca2fc7..1419a50 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -29,18 +29,6 @@
#include <linux/dma-mapping.h>
/**
- * enum dma_state_client - state of the channel in the client
- * @DMA_ACK: client would like to use, or was using this channel
- * @DMA_DUP: client has already seen this channel, or is not using this channel
- * @DMA_NAK: client does not want to see any more channels
- */
-enum dma_state_client {
- DMA_ACK,
- DMA_DUP,
- DMA_NAK,
-};
-
-/**
* typedef dma_cookie_t - an opaque DMA cookie
*
* if dma_cookie_t is >0 it's a DMA request cookie, <0 it's an error code
@@ -160,9 +148,10 @@ void dma_chan_cleanup(struct kref *kref);
* When this optional parameter is specified in a call to dma_request_channel a
* suitable channel is passed to this routine for further dispositioning before
* being returned. Where 'suitable' indicates a non-busy channel that
- * satisfies the given capability mask.
+ * satisfies the given capability mask. It returns 'true' to indicate that the
+ * channel is suitable.
*/
-typedef enum dma_state_client (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
+typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
typedef void (*dma_async_tx_callback)(void *dma_async_param);
/**
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