netdev - Re: [PATCH net v2] net: enable interface alias removal via rtnl

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Message-ID: <8b334f53-235b-42d2-ba68-4e63c54c498c@6wind.com>
Date:   Wed, 11 Oct 2017 14:29:16 +0200
From:   Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:     David Ahern <dsahern@...il.com>, davem@...emloft.net
Cc:     netdev@...r.kernel.org, oliver@...tkopp.net,
        Stephen Hemminger <stephen@...workplumber.org>
Subject: Re: [PATCH net v2] net: enable interface alias removal via rtnl

Le 10/10/2017 à 16:50, David Ahern a écrit :
> On 10/10/17 6:41 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()).
>>
>> Let's define the type to NLA_BINARY, so that the alias can be removed.
> 
> not to be pedantic, but we need to be clear that the type is changed
> only for policy validation.
With the comment in the code, it is clear, isn't it?


Regards,
Nicolas