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bstp_input() always consumes the packet so remove the mbuf handling dance

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around it.

Obtained from:	OpenBSD (r1.37)
This commit is contained in:
Andrew Thompson 2012-02-23 00:59:21 +00:00
parent 19befced93
commit 4661f8627c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=232014
3 changed files with 6 additions and 9 deletions
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5
sys/net/bridgestp.c
View File

@ -446,7 +446,7 @@ bstp_pdu_flags(struct bstp_port *bp)
return (flags);
}
struct mbuf *
void
bstp_input(struct bstp_port *bp, struct ifnet *ifp, struct mbuf *m)
{
struct bstp_state *bs = bp->bp_bs;
@ -456,7 +456,7 @@ bstp_input(struct bstp_port *bp, struct ifnet *ifp, struct mbuf *m)
if (bp->bp_active == 0) {
m_freem(m);
return (NULL);
return;
}
BSTP_LOCK(bs);
@ -521,7 +521,6 @@ bstp_input(struct bstp_port *bp, struct ifnet *ifp, struct mbuf *m)
BSTP_UNLOCK(bs);
if (m)
m_freem(m);
return (NULL);
}
static void

2
sys/net/bridgestp.h
View File

@ -392,6 +392,6 @@ int bstp_set_edge(struct bstp_port *, int);
int bstp_set_autoedge(struct bstp_port *, int);
int bstp_set_ptp(struct bstp_port *, int);
int bstp_set_autoptp(struct bstp_port *, int);
struct mbuf *bstp_input(struct bstp_port *, struct ifnet *, struct mbuf *);
void bstp_input(struct bstp_port *, struct ifnet *, struct mbuf *);
#endif /* _KERNEL */

8
sys/net/if_bridge.c
View File

@ -2215,11 +2215,9 @@ bridge_input(struct ifnet *ifp, struct mbuf *m)
/* Tap off 802.1D packets; they do not get forwarded. */
if (memcmp(eh->ether_dhost, bstp_etheraddr,
ETHER_ADDR_LEN) == 0) {
m = bstp_input(&bif->bif_stp, ifp, m);
if (m == NULL) {
BRIDGE_UNLOCK(sc);
return (NULL);
}
bstp_input(&bif->bif_stp, ifp, m); /* consumes mbuf */
BRIDGE_UNLOCK(sc);
return (NULL);
}
if ((bif->bif_flags & IFBIF_STP) &&