From owner-svn-src-stable@FreeBSD.ORG Fri May 21 16:07:20 2010 Return-Path: Delivered-To: svn-src-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DA606106564A; Fri, 21 May 2010 16:07:20 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from svn.freebsd.org (unknown [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id AFDC68FC08; Fri, 21 May 2010 16:07:20 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id o4LG7K7g063871; Fri, 21 May 2010 16:07:20 GMT (envelope-from jhb@svn.freebsd.org) Received: (from jhb@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id o4LG7KxO063869; Fri, 21 May 2010 16:07:20 GMT (envelope-from jhb@svn.freebsd.org) Message-Id: <201005211607.o4LG7KxO063869@svn.freebsd.org> From: John Baldwin Date: Fri, 21 May 2010 16:07:20 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org X-SVN-Group: stable-8 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r208382 - stable/8/sys/net X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 May 2010 16:07:21 -0000 Author: jhb Date: Fri May 21 16:07:20 2010 New Revision: 208382 URL: http://svn.freebsd.org/changeset/base/208382 Log: MFC 208212: Ignore failures from removing multicast addresses from the parent (trunk) interface when tearing down a vlan interface. Modified: stable/8/sys/net/if_vlan.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/xen/xenpci/ (props changed) stable/8/sys/geom/sched/ (props changed) Modified: stable/8/sys/net/if_vlan.c ============================================================================== --- stable/8/sys/net/if_vlan.c Fri May 21 16:03:57 2010 (r208381) +++ stable/8/sys/net/if_vlan.c Fri May 21 16:07:20 2010 (r208382) @@ -186,8 +186,8 @@ static int vlan_setflag(struct ifnet *if int (*func)(struct ifnet *, int)); static int vlan_setflags(struct ifnet *ifp, int status); static int vlan_setmulti(struct ifnet *ifp); -static int vlan_unconfig(struct ifnet *ifp); -static int vlan_unconfig_locked(struct ifnet *ifp); +static void vlan_unconfig(struct ifnet *ifp); +static void vlan_unconfig_locked(struct ifnet *ifp); static int vlan_config(struct ifvlan *ifv, struct ifnet *p, uint16_t tag); static void vlan_link_state(struct ifnet *ifp, int link); static void vlan_capabilities(struct ifvlan *ifv); @@ -1081,25 +1081,22 @@ done: return (error); } -static int +static void vlan_unconfig(struct ifnet *ifp) { - int ret; VLAN_LOCK(); - ret = vlan_unconfig_locked(ifp); + vlan_unconfig_locked(ifp); VLAN_UNLOCK(); - return (ret); } -static int +static void vlan_unconfig_locked(struct ifnet *ifp) { struct ifvlantrunk *trunk; struct vlan_mc_entry *mc; struct ifvlan *ifv; struct ifnet *parent; - int error; VLAN_LOCK_ASSERT(); @@ -1128,9 +1125,15 @@ vlan_unconfig_locked(struct ifnet *ifp) while ((mc = SLIST_FIRST(&ifv->vlan_mc_listhead)) != NULL) { bcopy((char *)&mc->mc_addr, LLADDR(&sdl), ETHER_ADDR_LEN); - error = if_delmulti(parent, (struct sockaddr *)&sdl); - if (error) - return (error); + + /* + * This may fail if the parent interface is + * being detached. Regardless, we should do a + * best effort to free this interface as much + * as possible as all callers expect vlan + * destruction to succeed. + */ + (void)if_delmulti(parent, (struct sockaddr *)&sdl); SLIST_REMOVE_HEAD(&ifv->vlan_mc_listhead, mc_entries); free(mc, M_VLAN); } @@ -1176,8 +1179,6 @@ vlan_unconfig_locked(struct ifnet *ifp) */ if (parent != NULL) EVENTHANDLER_INVOKE(vlan_unconfig, parent, ifv->ifv_tag); - - return (0); } /* Handle a reference counted flag that should be set on the parent as well */