netdev - "ip addr show" returns interface names that won't work with "ip addr show dev <ifname>"

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Message-Id: <4DC83BAC-29D0-404E-8EA7-74B2BD80446C@gmail.com>
Date:   Fri, 11 Jun 2021 05:27:53 -0500
From:   Scott Fields <slfields66@...il.com>
To:     netdev@...r.kernel.org
Subject: "ip addr show" returns interface names that won't work with "ip addr
 show dev <ifname>"

“ip addr show” will return a list of devices that may not work with “ip addr show dev <ifname>”.

If you have list vlan device, it will return it as “<vlan ifname>@<parent ifname>”.

However, “ip addr show dev <ifname>” will not work with that name.

“ip addr show dev <ifname>” should work with interface names that “ip addr show” returns.