On Tue, Sep 11, 2018 at 4:20 PM Nathan Chancellor <[email protected]> wrote: > > Clang warns when implicitly converting from one enumerated type to > another. Avoid this by using the equivalent value from the expected > type. > > drivers/dma/timb_dma.c:548:27: warning: implicit conversion from > enumeration type 'enum dma_transfer_direction' to different enumeration > type 'enum dma_data_direction' [-Wenum-conversion] > td_desc->desc_list_len, DMA_MEM_TO_DEV); > ^~~~~~~~~~~~~~ > 1 warning generated. > > Reported-by: Nick Desaulniers <[email protected]> > Signed-off-by: Nathan Chancellor <[email protected]> > --- > drivers/dma/timb_dma.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c > index 395c698edb4d..fc0f9c8766a8 100644 > --- a/drivers/dma/timb_dma.c > +++ b/drivers/dma/timb_dma.c > @@ -545,7 +545,7 @@ static struct dma_async_tx_descriptor > *td_prep_slave_sg(struct dma_chan *chan, > } > > dma_sync_single_for_device(chan2dmadev(chan), td_desc->txd.phys, > - td_desc->desc_list_len, DMA_MEM_TO_DEV); > + td_desc->desc_list_len, DMA_TO_DEVICE);
Looks like DMA_MEM_TO_DEV and DMA_TO_DEVICE happen to have the same value (today) so no functional change. And dma_sync_single_for_device is defined to take the `enum dma_data_direction` which `DMA_TO_DEVICE` is an enumeration of. Thanks for the patch Nathan. Reviewed-by: Nick Desaulniers <[email protected]> > > return &td_desc->txd; > } > -- > 2.18.0 > -- Thanks, ~Nick Desaulniers
