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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2012-10-18 17:34:12 +0300 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-01-07 22:04:52 -0800 |
| commit | e63a47a361e03eaf79e0f2f6cdaca8e7679d1867 (patch) | |
| tree | 0cbd9b8403484048fbf97f5d4efa3a6df1d53274 /drivers/dma/dw_dmac_regs.h | |
| parent | ba84bd7146b9244de0ce04cdc668521a73f5336f (diff) | |
| download | linux-e63a47a361e03eaf79e0f2f6cdaca8e7679d1867.tar.bz2 | |
dw_dmac: introduce to_dw_desc() macro
The to_dw_desc() macro helps to retrieve the dw_desc node from the
corresponding list_head structure.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma/dw_dmac_regs.h')
| -rw-r--r-- | drivers/dma/dw_dmac_regs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h index 88a069f66b89..8881e9b277a3 100644 --- a/drivers/dma/dw_dmac_regs.h +++ b/drivers/dma/dw_dmac_regs.h @@ -299,6 +299,8 @@ struct dw_desc { size_t len; }; +#define to_dw_desc(h) list_entry(h, struct dw_desc, desc_node) + static inline struct dw_desc * txd_to_dw_desc(struct dma_async_tx_descriptor *txd) { |