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| author | melifaro <melifaro@FreeBSD.org> | 2016-01-01 10:15:06 +0000 |
|---|---|---|
| committer | melifaro <melifaro@FreeBSD.org> | 2016-01-01 10:15:06 +0000 |
| commit | 9a86ecf0aeb7e35f973c268adae4d400c7cf404c (patch) | |
| tree | e941cb9051c9f33e90efa0e9291be9dc06567856 /sys/net | |
| parent | 11d782769ff19b67410281362ae83a056498d6fd (diff) | |
| download | FreeBSD-src-9a86ecf0aeb7e35f973c268adae4d400c7cf404c.zip FreeBSD-src-9a86ecf0aeb7e35f973c268adae4d400c7cf404c.tar.gz | |
Remove second EVENTHANDLER_REGISTER slipped in r292978.
Describe the reason of doing unconditional M_PREPEND in ether_output().
Diffstat (limited to 'sys/net')
| -rw-r--r-- | sys/net/if_ethersubr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/net/if_ethersubr.c b/sys/net/if_ethersubr.c index 5186406..2b82ecc 100644 --- a/sys/net/if_ethersubr.c +++ b/sys/net/if_ethersubr.c @@ -324,6 +324,10 @@ ether_output(struct ifnet *ifp, struct mbuf *m, /* * Add local net header. If no space in first mbuf, * allocate another. + * + * Note that we do prepend regardless of RT_HAS_HEADER flag. + * This is done because BPF code shifts m_data pointer + * to the end of ethernet header prior to calling if_output(). */ M_PREPEND(m, hlen, M_NOWAIT); if (m == NULL) |
