Re: [PATCH net] ravb: do not use zero-length alighment DMA request

On Fri, Jan 13, 2017 at 02:09:00PM +0100, Simon Horman wrote:

From: Masaru Nagai <redacted>

Due to alignment requirements of the hardware transmissions are split into
two DMA descriptors, a small padding descriptor of 0 - 3 bytes in length
followed by a descriptor for rest of the packet.

In the case of IP packets the first descriptor will never be zero due to
the way that the stack aligns buffers for IP packets. However, for non-IP
packets it may be zero.

...

Apologies, I forgot to include v2 in the subject prefix.