[src/trunk]: src/sys/sys Add KASSERTs in the rcvif functions.

[maxv <maxv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/179195e345ed
branches:  trunk
changeset: 322319:179195e345ed
user:      maxv <maxv%NetBSD.org@localhost>
date:      Sun Apr 29 06:52:55 2018 +0000

description:
Add KASSERTs in the rcvif functions.

diffstat:

 sys/sys/mbuf.h |  14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

diffs (62 lines):

diff -r 20354c95110e -r 179195e345ed sys/sys/mbuf.h
--- a/sys/sys/mbuf.h    Sun Apr 29 05:36:04 2018 +0000
+++ b/sys/sys/mbuf.h    Sun Apr 29 06:52:55 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: mbuf.h,v 1.198 2018/04/27 19:06:48 maxv Exp $  */
+/*     $NetBSD: mbuf.h,v 1.199 2018/04/29 06:52:55 maxv Exp $  */
 
 /*
  * Copyright (c) 1996, 1997, 1999, 2001, 2007 The NetBSD Foundation, Inc.
@@ -860,14 +860,14 @@
 static __inline void
 m_set_rcvif(struct mbuf *m, const struct ifnet *ifp)
 {
-
+       KASSERT(m->m_flags & M_PKTHDR);
        m->m_pkthdr.rcvif_index = ifp->if_index;
 }
 
 static __inline void
 m_reset_rcvif(struct mbuf *m)
 {
-
+       KASSERT(m->m_flags & M_PKTHDR);
        /* A caller may expect whole _rcvif union is zeroed */
        /* m->m_pkthdr.rcvif_index = 0; */
        m->m_pkthdr._rcvif.ctx = NULL;
@@ -876,7 +876,8 @@
 static __inline void
 m_copy_rcvif(struct mbuf *m, const struct mbuf *n)
 {
-
+       KASSERT(m->m_flags & M_PKTHDR);
+       KASSERT(n->m_flags & M_PKTHDR);
        m->m_pkthdr.rcvif_index = n->m_pkthdr.rcvif_index;
 }
 
@@ -898,6 +899,7 @@
 {
        struct ifnet *ifp;
 
+       KASSERT(m->m_flags & M_PKTHDR);
        *s = pserialize_read_enter();
        ifp = if_byindex(m->m_pkthdr.rcvif_index);
        if (__predict_false(ifp == NULL))
@@ -924,7 +926,7 @@
 static __inline struct ifnet *
 m_get_rcvif_psref(const struct mbuf *m, struct psref *psref)
 {
-
+       KASSERT(m->m_flags & M_PKTHDR);
        return if_get_byindex(m->m_pkthdr.rcvif_index, psref);
 }
 
@@ -945,7 +947,7 @@
 static __inline struct ifnet *
 m_get_rcvif_NOMPSAFE(const struct mbuf *m)
 {
-
+       KASSERT(m->m_flags & M_PKTHDR);
        return if_byindex(m->m_pkthdr.rcvif_index);
 }