This commit adds the missing release mechanism for the

ratelimiting code. The two modules (lagg and vlan) did have
allocation routines, and even though they are indirect (and
vector down to the underlying interfaces) they both need to
have a free routine (that also vectors down to the actual interface).

Sponsored by:	Netflix Inc.
Differential Revision:	https://reviews.freebsd.org/D19032

1 files changed, 8 insertions, 0 deletions

diff --git a/sys/net/if_vlan.c b/sys/net/if_vlan.c
index 535ce8cf7dcb..cf8b4ff1790a 100644
--- a/sys/net/if_vlan.c
+++ b/sys/net/if_vlan.c
@@ -267,6 +267,7 @@ static	int vlan_ioctl(struct ifnet *ifp, u_long cmd, caddr_t addr);
 #ifdef RATELIMIT
 static	int vlan_snd_tag_alloc(struct ifnet *,
     union if_snd_tag_alloc_params *, struct m_snd_tag **);
+static void vlan_snd_tag_free(struct m_snd_tag *);
 #endif
 static	void vlan_qflush(struct ifnet *ifp);
 static	int vlan_setflag(struct ifnet *ifp, int flag, int status,
@@ -1047,6 +1048,7 @@ vlan_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t params)
 	ifp->if_ioctl = vlan_ioctl;
 #ifdef RATELIMIT
 	ifp->if_snd_tag_alloc = vlan_snd_tag_alloc;
+	ifp->if_snd_tag_free = vlan_snd_tag_free;
 #endif
 	ifp->if_flags = VLAN_IFFLAGS;
 	ether_ifattach(ifp, eaddr);
@@ -1934,4 +1936,10 @@ vlan_snd_tag_alloc(struct ifnet *ifp,
 	/* forward allocation request */
 	return (ifp->if_snd_tag_alloc(ifp, params, ppmt));
 }
+
+static void
+vlan_snd_tag_free(struct m_snd_tag *tag)
+{
+	tag->ifp->if_snd_tag_free(tag);
+}
 #endif