From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jiri Pirko <jiri@resnulli.us>
Subject: Re: [PATCH 1/1] net sched: Added the TC_LINKLAYER_CUSTOM linklayer
 type
Date: Tue, 4 Jul 2017 17:34:50 +0200
Message-ID: <20170704153450.GB1865@nanopsycho>
References: <20170704001426.9268-1-Robert.McCabe@rockwellcollins.com>
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Tue, Jul 04, 2017 at 04:49:24PM CEST, robert.mccabe@rockwellcollins.com wrote:
>> You dump stab->data to user. How is this related to TC_LINKLAYER_CUSTOM
>> and howcome this "is to support user-space modification of the qdisc
>> stab" as your description says? I'm confused...
>
>I have a related patch for iproute2 where the "custom" link-layer is
>used to allow
>user modification of the qdisc stab.  Dumping stab->data to the user
>is used in the
>iproute2 patch to show the current size translation table.

Even so, the kernel patch you sent does not make any sense. Introduces
TC_LINKLAYER_CUSTOM but does not use it.