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dmaengine: ste_dma40: Cleanup scatterlist layering violations

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This dma engine driver directly accesses page_link assuming knowledge
that should be contained only in scatterlist.h.

We replace this access with a call to sg_chain which is equivalent.

Signed-off-by: Logan Gunthorpe <[email protected]>
Signed-off-by: Stephen Bates <[email protected]>
Acked-by: Linus Walleij <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Vinod Koul <[email protected]>
Cc: Per Förlin <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>
This commit is contained in:
Logan Gunthorpe 2017-05-30 16:39:17 -06:00 • committed by Vinod Koul
commit 838b56adab
1 changed files with 1 additions and 4 deletions
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5
drivers/dma/ste_dma40.c
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@ -2528,10 +2528,7 @@ dma40_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t dma_addr,
dma_addr += period_len;
}
sg[periods].offset = 0;
sg_dma_len(&sg[periods]) = 0;
sg[periods].page_link =
((unsigned long)sg | 0x01) & ~0x02;
sg_chain(sg, periods + 1, sg);
txd = d40_prep_sg(chan, sg, sg, periods, direction,
DMA_PREP_INTERRUPT);