Bug#1032561: iproute2: "tc filter show" always results in empty response

From	Simon Arthur <simon@sarthur.dev>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1032561: iproute2: "tc filter show" always results in empty response
Date	2023-03-09 13:50 +0100
Message-ID	<G7nSx-bg72-1@gated-at.bofh.it> (permalink)
References	<G79FT-b6l2-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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I have found that more specific arguments does return output:
root@debian12:~# tc filter show
root@debian12:~# tc filter show dev eth2 root
filter parent ffff: protocol all pref 49152 matchall chain 0
filter parent ffff: protocol all pref 49152 matchall chain 0 handle 0x1
  not_in_hw
        action order 1: mirred (Egress Redirect to device ifb4eth2) stolen
        index 2 ref 1 bind 1

However like "tc qdisc show" you would expect "tc filter show" to also
result in all filter rules across interfaces being returned.

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Bug#1032561: iproute2: "tc filter show" always results in empty response Simon <simon@sarthur.dev> - 2023-03-08 22:40 +0100
  Bug#1032561: iproute2: "tc filter show" always results in empty response Simon Arthur <simon@sarthur.dev> - 2023-03-09 13:50 +0100

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