netdev - Re: [PATCH v2] tc: qdisc: filter qdisc's by parent/handle specification

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Message-ID: <CAEzD07+enUmPALNdH6CLgLW12NMoJcJ-C8gD+fJwHACLYTPZ6w@mail.gmail.com>
Date:   Wed, 24 Jun 2020 20:03:08 +0300
From:   Anton Danilov <littlesmilingcloud@...il.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: [PATCH v2] tc: qdisc: filter qdisc's by parent/handle specification

Hello, Stephen. Thanks for feedback.

I'm stuck in the error description. I can use just
  invarg("mutually exclusive options", *argv)

But from the user's point of view it isn't completely clear. I think it's
better to return a little bit more detailed error message. Something like this:
  if (filter_parent)
      invarg("parent is already specified", *argv);
  else if (filter_handle)
      invarg("handle is already specified", *argv);

Also I have declined the idea about adding the get command. Think the show
command is enough, and usage of the one more alias is unnecessary.

What do you think about this?

-- 
Anton Danilov.