From FreeBSD:
authorJoerg Sonnenberger <joerg@dragonflybsd.org>
Sat, 25 Sep 2004 15:20:33 +0000 (15:20 +0000)
committerJoerg Sonnenberger <joerg@dragonflybsd.org>
Sat, 25 Sep 2004 15:20:33 +0000 (15:20 +0000)
commit84633371928dbe633619779af5a64cd5a016ad63
treeb183e4f8241d1ba5c5aa68f43cd00eab89bc3871
parentd75e23fedfcf1452b6194b7b093fe2dd35f611a8
From FreeBSD:
Introduce an M_ASSERTPKTHDR() macro which performs the very common task
of asserting that an mbuf has a packet header.  Use it instead of hand-
rolled versions wherever applicable.

Submitted by: Hiten Pandya <hiten@unixdaemons.com>
sys/sys/mbuf.h