[U-Boot] [PATCH] net: Mark the ip_udp_hdr struct as packed

[Dr. Philipp Tomsich]

> On 12 Jul 2017, at 16:34, Maxime Ripard <maxime.ripard at free-electrons.com> wrote:
> 
> The -mno-unaligned-access flag used on ARM to prevent GCC from generating
> unaligned accesses (obviously) will only do so on packed structures.
> 
> It seems like gcc 7.1 is a bit stricter than previous gcc versions on this,
> and using it lead to data abort for unaligned accesses when generating
> network traffic.
> 
> Fix this by adding the packed attribute to the ip_udp_hdr structure in
> order to let GCC do its job.
> 
> Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
> —

Reviewed-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>