On Mon, 20 Jan 2020 at 15:15, Adrian Hunter <adrian.hunter@xxxxxxxxx> wrote:
>
> On 20/01/20 5:32 am, Chunyan Zhang wrote:
> > Fix an issue reported by sparse, since mixed types of parameters are
> > used on calling dmaengine_prep_slave_sg().
> >
> > Fixes: 36e1da441fec (mmc: sdhci: add support for using external DMA devices)
>
> That commit number is only in next
Ok, so should this line be removed?
>
> > Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> > Signed-off-by: Chunyan Zhang <zhang.chunyan@xxxxxxxxxx>
> > Reviewed-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
>
> Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Thank you!
Chunyan
>
> > ---
> > Changes from v1:
> > * address comments from Nathan Chancellor
> > - define a new variable to avoid type conversions.
> > ---
> > drivers/mmc/host/sdhci.c | 5 +++--
> > 1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> > index 30b5a624b50e..f9e0b5f2c692 100644
> > --- a/drivers/mmc/host/sdhci.c
> > +++ b/drivers/mmc/host/sdhci.c
> > @@ -1201,6 +1201,7 @@ static int sdhci_external_dma_setup(struct sdhci_host *host,
> > struct mmc_command *cmd)
> > {
> > int ret, i;
> > + enum dma_transfer_direction dir;
> > struct dma_async_tx_descriptor *desc;
> > struct mmc_data *data = cmd->data;
> > struct dma_chan *chan;
> > @@ -1234,8 +1235,8 @@ static int sdhci_external_dma_setup(struct sdhci_host *host,
> > if (sg_cnt <= 0)
> > return -EINVAL;
> >
> > - desc = dmaengine_prep_slave_sg(chan, data->sg, data->sg_len,
> > - mmc_get_dma_dir(data),
> > + dir = data->flags & MMC_DATA_WRITE ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
> > + desc = dmaengine_prep_slave_sg(chan, data->sg, data->sg_len, dir,
> > DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
> > if (!desc)
> > return -EINVAL;
> >
>
