On Thu, Mar 24, 2022 at 04:48:15AM +0300, Serge Semin wrote:
> Most likely due to a copy-paste mistake the dst_addr member of the
> dma_slave_config structure has been marked as ignored if the !source!
> address belong to the memory. That is relevant to the src_addr field of
> the structure while the dst_addr field as containing a destination device
> address is supposed to be ignored if the destination is the CPU memory.
> Let's fix the field description accordingly.
>
> Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
One suggestion below.
> ---
> include/linux/dmaengine.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
> index 842d4f7ca752..f204ea16ac1c 100644
> --- a/include/linux/dmaengine.h
> +++ b/include/linux/dmaengine.h
> @@ -395,7 +395,7 @@ enum dma_slave_buswidth {
> * should be read (RX), if the source is memory this argument is
> * ignored.
> * @dst_addr: this is the physical address where DMA slave data
> - * should be written (TX), if the source is memory this argument
> + * should be written (TX), if the destination is memory this argument
Should we rename "memory" to "local memory" or something similar?
Thanks,
Mani
> * is ignored.
> * @src_addr_width: this is the width in bytes of the source (RX)
> * register where DMA data shall be read. If the source
> --
> 2.35.1
>
