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| author |   Hongbo Zhang <hongbo.zhang@freescale.com> | 2014-04-18 16:17:47 +0800 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2014-05-02 22:17:42 +0530 |
| commit | 86d19a5491d08fdc5a5cb4be5a09d5f88a6b96ba (patch) | |
| tree | b9cf63688839df5daea4333e38de9c01f7283c57 /drivers/dma/fsldma.c | |
| parent | DMA: Freescale: remove attribute DMA_INTERRUPT of dmaengine (diff) | |
| download | linux-dev-86d19a5491d08fdc5a5cb4be5a09d5f88a6b96ba.tar.xz linux-dev-86d19a5491d08fdc5a5cb4be5a09d5f88a6b96ba.zip | |
DMA: Freescale: add fsl_dma_free_descriptor() to reduce code duplication
There are several places where descriptors are freed using identical code.
This patch puts this code into a function to reduce code duplication.
Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com>
Signed-off-by: Qiang Liu <qiang.liu@freescale.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/fsldma.c')
| -rw-r--r-- | drivers/dma/fsldma.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index b71cc04e66ca..adc266e6d5c9 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -418,6 +418,19 @@ static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx) } /** + * fsl_dma_free_descriptor - Free descriptor from channel's DMA pool. + * @chan : Freescale DMA channel + * @desc: descriptor to be freed + */ +static void fsl_dma_free_descriptor(struct fsldma_chan *chan, + struct fsl_desc_sw *desc) +{ + list_del(&desc->node); + chan_dbg(chan, "LD %p free\n", desc); + dma_pool_free(chan->desc_pool, desc, desc->async_tx.phys); +} + +/** * fsl_dma_alloc_descriptor - Allocate descriptor from channel's DMA pool. * @chan : Freescale DMA channel * @@ -489,11 +502,8 @@ static void fsldma_free_desc_list(struct fsldma_chan *chan, { struct fsl_desc_sw *desc, *_desc; - list_for_each_entry_safe(desc, _desc, list, node) { - list_del(&desc->node); - chan_dbg(chan, "LD %p free\n", desc); - dma_pool_free(chan->desc_pool, desc, desc->async_tx.phys); - } + list_for_each_entry_safe(desc, _desc, list, node) + fsl_dma_free_descriptor(chan, desc); } static void fsldma_free_desc_list_reverse(struct fsldma_chan *chan, @@ -501,11 +511,8 @@ static void fsldma_free_desc_list_reverse(struct fsldma_chan *chan, { struct fsl_desc_sw *desc, *_desc; - list_for_each_entry_safe_reverse(desc, _desc, list, node) { - list_del(&desc->node); - chan_dbg(chan, "LD %p free\n", desc); - dma_pool_free(chan->desc_pool, desc, desc->async_tx.phys); - } + list_for_each_entry_safe_reverse(desc, _desc, list, node) + fsl_dma_free_descriptor(chan, desc); } /** |