From: Timur Tabi <timur@xxxxxxxxxxxxxx>
Date: Fri, 22 Sep 2017 15:32:44 -0500
> When mapping the RX DMA buffers, the driver was accidentally specifying
> zero for the buffer length. Under normal circumstances, SWIOTLB does not
> need to allocate a bounce buffer, so the address is just mapped without
> checking the size field. This is why the error was not detected earlier.
>
> Fixes: b9b17debc69d ("net: emac: emac gigabit ethernet controller driver")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Timur Tabi <timur@xxxxxxxxxxxxxx>
Applied and queued up for -stable, thanks.