>> >Then, the else-clause is effectively nop and doesn't match with the
>> >comment there.
>> 	need to keep the code for kame sync. (in kame code there's more code
>> 	inside if {} else {}).
>``the else-clause''.  Both latest kame and NetBSD code are same
>regarding this.

	ok, but it won't hurt so i'd like to leave it as is.
	actually IFA6_IS_DEPRECATED() the right way to detect deprecated-ness,
	IN6_IFF_DEPRECATED is a shortcut for it, so i'd like to make suremthey
	are in sync.

itojun