The to_dw_desc() macro helps to retrieve the dw_desc node from the corresponding list_head structure.
Signed-off-by: Andy Shevchenko <[email protected]> --- drivers/dma/dw_dmac.c | 6 ++---- drivers/dma/dw_dmac_regs.h | 2 ++ 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 826ff8d..cb89c2a 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -93,7 +93,7 @@ static struct device *chan2parent(struct dma_chan *chan) static struct dw_desc *dwc_first_active(struct dw_dma_chan *dwc) { - return list_entry(dwc->active_list.next, struct dw_desc, desc_node); + return to_dw_desc(dwc->active_list.next); } static struct dw_desc *dwc_desc_get(struct dw_dma_chan *dwc) @@ -600,9 +600,7 @@ static void dw_dma_tasklet(unsigned long data) if (test_bit(DW_DMA_IS_SOFT_LLP, &dwc->flags)) { if (dwc->tx_node_active != dwc->tx_list) { struct dw_desc *desc = - list_entry(dwc->tx_node_active, - struct dw_desc, - desc_node); + to_dw_desc(dwc->tx_node_active); dma_writel(dw, CLEAR.XFER, dwc->mask); diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h index ff39fa6..de90a1b 100644 --- a/drivers/dma/dw_dmac_regs.h +++ b/drivers/dma/dw_dmac_regs.h @@ -287,6 +287,8 @@ 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) { -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
