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From: David Ahern <dsahern@gmail.com>
To: Nicolas Dichtel <nicolas.dichtel@6wind.com>, davem@davemloft.net
Cc: netdev@vger.kernel.org, Oliver Hartkopp <oliver@hartkopp.net>,
	Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH net] net: enable interface alias removal via rtnl
Date: Fri, 6 Oct 2017 12:18:44 -0600	[thread overview]
Message-ID: <b6c121f1-c585-6fa4-8dc9-8847ea5ee20c@gmail.com> (raw)
In-Reply-To: <20171005101940.28550-1-nicolas.dichtel@6wind.com>

On 10/5/17 4:19 AM, Nicolas Dichtel wrote:
> IFLA_IFALIAS is defined as NLA_STRING. It means that the minimal length of
> the attribute is 1 ("\0"). However, to remove an alias, the attribute
> length must be 0 (see dev_set_alias()).

why not add a check in dev_set_alias that if len is 1 and the 1
character is '\0' it means remove the alias?

> 
> Let's define the type to NLA_BINARY, so that the alias can be removed.

that changes the uapi

  reply	other threads:[~2017-10-06 18:18 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-05 10:19 [PATCH net] net: enable interface alias removal via rtnl Nicolas Dichtel
2017-10-06 18:18 ` David Ahern [this message]
2017-10-06 20:10   ` Oliver Hartkopp
2017-10-09  8:23     ` Nicolas Dichtel
2017-10-09 14:02       ` David Ahern
2017-10-09 15:25         ` Nicolas Dichtel
2017-10-09 21:17           ` David Ahern
2017-10-10 12:41             ` [PATCH net v2] " Nicolas Dichtel
2017-10-10 14:50               ` David Ahern
2017-10-11 12:29                 ` Nicolas Dichtel
2017-10-11 14:13                   ` David Ahern
2017-10-11 14:24                     ` [PATCH net v3] " Nicolas Dichtel
2017-10-16 19:52                       ` David Miller

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