netdev - Re: displayed name changed in ip link show for bridge- and other interfaces

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Date:	Tue, 23 Jun 2015 19:21:30 +0200
From:	Oliver Hartkopp <socketcan@...tkopp.net>
To:	nicolas.dichtel@...nd.com, David Miller <davem@...emloft.net>
CC:	Stephen Hemminger <stephen@...workplumber.org>,
	Ulrich Gemkow <ulrich.gemkow@....uni-stuttgart.de>,
	netdev@...r.kernel.org
Subject: Re: displayed name changed in ip link show for bridge- and other
 interfaces

On 23.06.2015 14:48, Nicolas Dichtel wrote:

>> E.g. virtual CAN interfaces (vcan.c) now print this @NONE and they never have
>> a (physical?) link. So you probably have to deal with different virtual
>> interfaces anyway, right?
> Yes, with the current code, all virtual interfaces (that define a
> rtnl_link_ops) will have this "@SOMETHING" because IFLA_LINK is now set to 0.

Just for the records:

Virtual and real CAN network interfaces (the stuff in drivers/net/can) also
have @NONE displayed in their name:

# ip link show
(..)
6: vcan0@...E: <NOARP,UP,LOWER_UP> mtu 72 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/can 
(..)
8: can0@...E: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN mode DEFAULT group default qlen 10
    link/can 
(..)

So at least your distinction real/virtual networking interfaces doesn't match
for all kind of interfaces.

Regards,
Oliver

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