diff options
| -rw-r--r-- | drivers/dma/dmaengine.c | 16 | ||||
| -rw-r--r-- | drivers/dma/dmatest.c | 6 | ||||
| -rw-r--r-- | drivers/mmc/host/atmel-mci.c | 6 | ||||
| -rw-r--r-- | include/linux/dmaengine.h | 17 |
4 files changed, 14 insertions, 31 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index b245c38..cdc8ecf 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -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); diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index 1d6e48f..c77d47c 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -363,12 +363,12 @@ static int dmatest_add_channel(struct dma_chan *chan) return 0; } -static enum dma_state_client filter(struct dma_chan *chan, void *param) +static bool filter(struct dma_chan *chan, void *param) { if (!dmatest_match_channel(chan) || !dmatest_match_device(chan->device)) - return DMA_DUP; + return false; else - return DMA_ACK; + return true; } static int __init dmatest_init(void) diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 4b567a0..b0042d0 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -1544,14 +1544,14 @@ static void __exit atmci_cleanup_slot(struct atmel_mci_slot *slot, } #ifdef CONFIG_MMC_ATMELMCI_DMA -static enum dma_state_client filter(struct dma_chan *chan, void *slave) +static bool filter(struct dma_chan *chan, void *slave) { struct dw_dma_slave *dws = slave; if (dws->dma_dev == chan->device->dev) - return DMA_ACK; + return true; else - return DMA_DUP; + return false; } #endif 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); /** |