dmaengine: ep93xx: Return proper enum in ep93xx_dma_chan_direction
Clang warns when implicitly converting from one enumerated type to another. Avoid this by using the equivalent value from the expected type. In file included from drivers/dma/ep93xx_dma.c:30: ./include/linux/platform_data/dma-ep93xx.h:88:10: warning: implicit conversion from enumeration type 'enum dma_data_direction' to different enumeration type 'enum dma_transfer_direction' [-Wenum-conversion] return DMA_NONE; ~~~~~~ ^~~~~~~~ 1 warning generated. Reported-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
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@ -85,7 +85,7 @@ static inline enum dma_transfer_direction
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ep93xx_dma_chan_direction(struct dma_chan *chan)
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{
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if (!ep93xx_dma_chan_is_m2p(chan))
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return DMA_NONE;
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return DMA_TRANS_NONE;
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/* even channels are for TX, odd for RX */
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return (chan->chan_id % 2 == 0) ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
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