Author: avos
Date: Sun Nov 6 16:44:33 2016
New Revision: 308376
URL: https://svnweb.freebsd.org/changeset/base/308376
Log:
MFC r288990:
Fix regression from r248371. We need to copy packet header to new
mbuf. Unlike in the pre-r248371 code, assert that M_PKTHDR is set
only on a first mbuf.
PR: 195074
Modified:
stable/10/sys/kern/uipc_mbuf.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/kern/uipc_mbuf.c
==============================================================================
--- stable/10/sys/kern/uipc_mbuf.c Sun Nov 6 16:27:09 2016
(r308375)
+++ stable/10/sys/kern/uipc_mbuf.c Sun Nov 6 16:44:33 2016
(r308376)
@@ -1994,6 +1994,11 @@ m_unshare(struct mbuf *m0, int how)
m_freem(m0);
return (NULL);
}
+ if (m->m_flags & M_PKTHDR) {
+ KASSERT(mprev == NULL, ("%s: m0 %p, m %p has M_PKTHDR",
+ __func__, m0, m));
+ m_move_pkthdr(n, m);
+ }
len = m->m_len;
off = 0;
mfirst = n;
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