In article [ref] (at Tue, 6 May 2008 11:07:49 +0300 (EEST)), Miika Komu [off-list ref] says:

quoted

Miika, where are your other patches on top of this?
This kind of change might be okay, but it must be along with
its users, at least.

we are maintaining a separate kernel module (GPLv2) for the HIP socket 
handler for experimentation purposes. If you want to have a look it, you 
can e.g. download the nightly tarball and have a look at the hipsock 
directory:

http://infrahip.hiit.fi/hipl/hipl.tar.gz

Even though, we basically do not accept patches without in-kernel users.

Anyway, I've quickly looked into the code, and IMHO
it is better to avoid using hip_select_socket_handler() and
to introduce new hip_ops (or something) in sock{}.

And, are you working on IPv4 transport?

--yoshfuji