Subject: Re: [PATCH net-next 2/2] dpaa2-eth: fix return codes used in ndo_setup_tc

From: Stephen Hemminger <[email-masked]>
Date: Thu, 23 Apr 2020 08:28:58 -0700

On Thu, 23 Apr 2020 16:57:50 +0200
Jesper Dangaard Brouer <[email-masked]> wrote:

> Drivers ndo_setup_tc call should return -EOPNOTSUPP, when it cannot
> support the qdisc type. Other return values will result in failing the
> qdisc setup.  This lead to qdisc noop getting assigned, which will
> drop all TX packets on the interface.
> 
> Fixes: ab1e6de2bd49 ("dpaa2-eth: Add mqprio support")
> Signed-off-by: Jesper Dangaard Brouer <[email-masked]>

Would it be possible to use extack as well?
Putting errors in dmesg is unhelpful