[PATCH 3/7] fsl-dma: add fsl_dma_free_descriptor() to reduce code duplication
From: Ira W. Snyder <hidden>
Date: 2012-07-31 23:45:57
Also in:
linux-crypto
Subsystem:
dma generic offload engine subsystem, freescale dma driver, the rest · Maintainers:
Vinod Koul, Zhang Wei, Linus Torvalds
From: "Ira W. Snyder" <redacted> There are several places where descriptors are freed using identical code. Put this code into a function to reduce code duplication. Signed-off-by: Ira W. Snyder <redacted> --- drivers/dma/fsldma.c | 32 ++++++++++++++------------------ 1 files changed, 14 insertions(+), 18 deletions(-)
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 8f0505d..c34a628 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c@@ -400,6 +400,15 @@ out_splice: list_splice_tail_init(&desc->tx_list, &chan->ld_pending); } +static void fsl_dma_free_descriptor(struct fsldma_chan *chan, struct fsl_desc_sw *desc) +{ + list_del(&desc->node); +#ifdef FSL_DMA_LD_DEBUG + chan_dbg(chan, "LD %p free\n", desc); +#endif + dma_pool_free(chan->desc_pool, desc, desc->async_tx.phys); +} + static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx) { struct fsldma_chan *chan = to_fsl_chan(tx->chan);
@@ -499,13 +508,8 @@ 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); -#ifdef FSL_DMA_LD_DEBUG - chan_dbg(chan, "LD %p free\n", desc); -#endif - 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,
@@ -513,13 +517,8 @@ 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); -#ifdef FSL_DMA_LD_DEBUG - chan_dbg(chan, "LD %p free\n", desc); -#endif - 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); } /**
@@ -852,10 +851,7 @@ static void fsldma_cleanup_descriptor(struct fsldma_chan *chan, dma_unmap_page(dev, src, len, DMA_TO_DEVICE); } -#ifdef FSL_DMA_LD_DEBUG - chan_dbg(chan, "LD %p free\n", desc); -#endif - dma_pool_free(chan->desc_pool, desc, txd->phys); + fsl_dma_free_descriptor(chan, desc); } /**
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1.7.8.6