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Use m_length() instead of home-rolled.

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In bpf_mtap(), if the entire packet is in one mbuf, call bpf_tap()
instead since it is a tad faster.

Sponsored by:	http://www.babeltech.dk/
This commit is contained in:
Poul-Henning Kamp 2002-09-18 19:48:59 +00:00
parent 7ed60de837
commit f0e2422b1b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=103555
1 changed files with 3 additions and 4 deletions
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7
sys/net/bpf.c
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@ -1123,11 +1123,10 @@ bpf_mtap(ifp, m)
struct bpf_if *bp = ifp->if_bpf;
struct bpf_d *d;
u_int pktlen, slen;
struct mbuf *m0;
pktlen = 0;
for (m0 = m; m0 != 0; m0 = m0->m_next)
pktlen += m0->m_len;
pktlen = m_length(m, NULL);
if (pktlen == m->m_len)
return(bpf_tap(ifp, mtod(m, u_char *), pktlen));
BPFIF_LOCK(bp);
for (d = bp->bif_dlist; d != 0; d = d->bd_next) {