diff options
| author |   angelos <angelos@openbsd.org> | 2001-06-27 04:09:14 +0000 |
|---|---|---|
| committer | angelos <angelos@openbsd.org> | 2001-06-27 04:09:14 +0000 |
| commit | ece27ecd0c5c52f7db5803446b9b3c39bb8b8ca2 (patch) | |
| tree | f258a276240dbc962dfeb52f43e086b1660ef649 /sys | |
| parent | Update. (diff) | |
| download | wireguard-openbsd-ece27ecd0c5c52f7db5803446b9b3c39bb8b8ca2.tar.xz wireguard-openbsd-ece27ecd0c5c52f7db5803446b9b3c39bb8b8ca2.zip | |
Hold on to m0->m_pkthdr.len (just being pendantic)
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/ic/awi.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/sys/dev/ic/awi.c b/sys/dev/ic/awi.c index af0ba52df5d..1ae8d5d923f 100644 --- a/sys/dev/ic/awi.c +++ b/sys/dev/ic/awi.c @@ -1,4 +1,4 @@ -/* $OpenBSD: awi.c,v 1.7 2001/06/27 03:49:52 angelos Exp $ */ +/* $OpenBSD: awi.c,v 1.8 2001/06/27 04:09:14 angelos Exp $ */ /* $NetBSD: awi.c,v 1.26 2000/07/21 04:48:55 onoe Exp $ */ /*- @@ -1164,12 +1164,13 @@ awi_fix_rxhdr(sc, m0) /* XXX: we loose to estimate the type of encapsulation */ struct mbuf *n, *n0, **np; caddr_t newdata; - int off; + int off, oldmlen; n0 = NULL; np = &n0; off = 0; - while (m0->m_pkthdr.len > off) { + oldmlen = m0->m_pkthdr.len; + while (oldmlen > off) { if (n0 == NULL) { MGETHDR(n, M_DONTWAIT, MT_DATA); if (n == NULL) { @@ -1187,7 +1188,7 @@ awi_fix_rxhdr(sc, m0) } n->m_len = MLEN; } - if (m0->m_pkthdr.len - off >= MINCLSIZE) { + if (oldmlen - off >= MINCLSIZE) { MCLGET(n, M_DONTWAIT); if (n->m_flags & M_EXT) n->m_len = n->m_ext.ext_size; @@ -1200,8 +1201,8 @@ awi_fix_rxhdr(sc, m0) n->m_len -= newdata - n->m_data; n->m_data = newdata; } - if (n->m_len > m0->m_pkthdr.len - off) - n->m_len = m0->m_pkthdr.len - off; + if (n->m_len > oldmlen - off) + n->m_len = oldmlen - off; m_copydata(m0, off, n->m_len, mtod(n, caddr_t)); off += n->m_len; *np = n; |