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| author | Vinod Koul <vinod.koul@intel.com> | 2013-10-16 13:29:02 +0530 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-10-25 11:15:38 +0530 |
| commit | adfedd9a32e4e3490c0060576fd824881572b72a (patch) | |
| tree | 83c422afd052ce038ed32d766e11ddbc690a0209 | |
| parent | e98b3cafe5f048be40ff6acb18dfa7c9a0e9423e (diff) | |
| download | linux-stable-adfedd9a32e4e3490c0060576fd824881572b72a.tar.gz linux-stable-adfedd9a32e4e3490c0060576fd824881572b72a.tar.bz2 linux-stable-adfedd9a32e4e3490c0060576fd824881572b72a.zip | |
dmaengine: use DMA_COMPLETE for dma completion status
the DMA_SUCCESS is a misnomer as dmaengine indicates the transfer is complete and
gives no guarantee of the transfer success. Hence we should use DMA_COMPLTE
instead of DMA_SUCCESS
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| -rw-r--r-- | drivers/dma/dmaengine.c | 2 | ||||
| -rw-r--r-- | include/linux/dmaengine.h | 12 |
2 files changed, 7 insertions, 7 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 9162ac80c18f..81d876528c70 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -1062,7 +1062,7 @@ dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx) unsigned long dma_sync_wait_timeout = jiffies + msecs_to_jiffies(5000); if (!tx) - return DMA_SUCCESS; + return DMA_COMPLETE; while (tx->cookie == -EBUSY) { if (time_after_eq(jiffies, dma_sync_wait_timeout)) { diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 0bc727534108..120e64c96478 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -45,13 +45,13 @@ static inline int dma_submit_error(dma_cookie_t cookie) /** * enum dma_status - DMA transaction status - * @DMA_SUCCESS: transaction completed successfully + * @DMA_COMPLETE: transaction completed * @DMA_IN_PROGRESS: transaction not yet processed * @DMA_PAUSED: transaction is paused * @DMA_ERROR: transaction failed */ enum dma_status { - DMA_SUCCESS, + DMA_SUCCESS = 0, DMA_COMPLETE = 0, DMA_IN_PROGRESS, DMA_PAUSED, DMA_ERROR, @@ -979,10 +979,10 @@ static inline enum dma_status dma_async_is_complete(dma_cookie_t cookie, { if (last_complete <= last_used) { if ((cookie <= last_complete) || (cookie > last_used)) - return DMA_SUCCESS; + return DMA_COMPLETE; } else { if ((cookie <= last_complete) && (cookie > last_used)) - return DMA_SUCCESS; + return DMA_COMPLETE; } return DMA_IN_PROGRESS; } @@ -1013,11 +1013,11 @@ static inline struct dma_chan *dma_find_channel(enum dma_transaction_type tx_typ } static inline enum dma_status dma_sync_wait(struct dma_chan *chan, dma_cookie_t cookie) { - return DMA_SUCCESS; + return DMA_COMPLETE; } static inline enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx) { - return DMA_SUCCESS; + return DMA_COMPLETE; } static inline void dma_issue_pending_all(void) { |