Re: git: efe58855f3ea - main - IPv4: experimental changes to allow net 0/8, 240/4, part of 127/8

From: Gleb Smirnoff <glebius_at_freebsd.org>
Date: Sat, 16 Jul 2022 18:46:58 UTC 
On Sat, Jul 16, 2022 at 10:13:46AM -0500, Mike Karels wrote:
M> > This cause LINT-NOIP builds to fail:
M> > ld: error: undefined symbol: vnet_entry_in_loopback_mask
M> >>>> referenced by ib_cma.c
M> >>>>               ib_cma.o:(rdma_destroy_id)
M> >>>> referenced by ib_cma.c
M> >>>>               ib_cma.o:(rdma_resolve_addr)
M> >>>> referenced by ib_cma.c
M> >>>>               ib_cma.o:(rdma_bind_addr)
M> >>>> referenced 11 more times
M> 
M> Yuck.  The Infiniband code isn’t ifdefed for INET (or INET6) and just
M> uses things.  One of its Linux compat shims uses IN_LOOPBACK, which now
M> refers to a mask field via VNET.  I can either add one #ifdef INET to
M> ib_cma.c, or remove OFED from LINT-NOIP.  I suppose I should add the
M> #ifdef; any other opinions?

I think the right thing to do will be to add ifdefs to cma_loopback_addr().

The beginning of the file should be augmented with including opt_inet.h
and opt_inet6.h, too.

-- 
Gleb Smirnoff