Is ip_build_xmit_slow() unused?

[Alexey Vyskubov]

Hello,

I have probably stupid question: what is the purpose of
ip_build_xmit_slow()?

Grepping over linux kernel source tree finds only two entries for
ip_build_xmit_slow():

net/ipv4/ip_output.c:static int ip_build_xmit_slow(struct sock *sk,

net/ipv4/ip_output.c:                   return
ip_build_xmit_slow(sk,getfrag,frag,length,ipc,rt,flags); 

Please notice that the second entry is inside ip_build_xmit_slow()
definition, i.e. this is recursive call.

Is this function really unused?

-- 
Alexey