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dmaengine: kill enum dma_state_client

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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>
This commit is contained in:
Dan Williams
2009-01-06 11:38:19 -07:00
parent f27c580c36
commit 7dd6025101
4 changed files with 14 additions and 31 deletions
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16
drivers/dma/dmaengine.c
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@@ -440,7 +440,7 @@ struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask, dma_filter_fn fn, v
{
struct dma_device *device, *_d;
struct dma_chan *chan = NULL;
enum dma_state_client ack;
bool ack;
int err;
/* Find a channel */
@@ -453,9 +453,9 @@ struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask, dma_filter_fn fn, v
if (fn)
ack = fn(chan, fn_param);
else
ack = DMA_ACK;
ack = true;
if (ack == DMA_ACK) {
if (ack) {
/* Found a suitable channel, try to grab, prep, and
* return it. We first set DMA_PRIVATE to disable
* balance_ref_count as this channel will not be
@@ -473,15 +473,9 @@ struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask, dma_filter_fn fn, v
dev_name(&chan->dev), err);
else
break;
} else if (ack == DMA_DUP) {
pr_debug("%s: %s filter said DMA_DUP\n",
__func__, dev_name(&chan->dev));
} else if (ack == DMA_NAK) {
pr_debug("%s: %s filter said DMA_NAK\n",
__func__, dev_name(&chan->dev));
break;
} else
WARN_ONCE(1, "filter_fn: unknown response?\n");
pr_debug("%s: %s filter said false\n",
__func__, dev_name(&chan->dev));
chan = NULL;
}
mutex_unlock(&dma_list_mutex);