From 86d19a5491d08fdc5a5cb4be5a09d5f88a6b96ba Mon Sep 17 00:00:00 2001 From: Hongbo Zhang Date: Fri, 18 Apr 2014 16:17:47 +0800 Subject: 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 Signed-off-by: Qiang Liu Signed-off-by: Vinod Koul --- drivers/dma/fsldma.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) (limited to 'drivers/dma') diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index b71cc04e66c..adc266e6d5c 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -417,6 +417,19 @@ static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx) return cookie; } +/** + * 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); } /** -- cgit v1.2.3-70-g09d2