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

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