svn commit: r277703 - stable/9/sys/net

[Andrey V. Elsukov]

Author: ae
Date: Sun Jan 25 14:50:49 2015
New Revision: 277703
URL: https://svnweb.freebsd.org/changeset/base/277703

Log:
  MFC r277295:
    Fix condition and really sort ports. Also add comment describing
    the intent of this code.

Modified:
  stable/9/sys/net/if_lagg.c
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/net/   (props changed)

Modified: stable/9/sys/net/if_lagg.c
==============================================================================
--- stable/9/sys/net/if_lagg.c	Sun Jan 25 14:32:48 2015	(r277702)
+++ stable/9/sys/net/if_lagg.c	Sun Jan 25 14:50:49 2015	(r277703)
@@ -624,11 +624,16 @@ lagg_port_create(struct lagg_softc *sc, 
 		lagg_port_lladdr(lp, IF_LLADDR(sc->sc_ifp));
 	}
 
-	/* Insert into the list of ports. Keep ports sorted by if_index. */
+	/*
+	 * Insert into the list of ports.
+	 * Keep ports sorted by if_index. It is handy, when configuration
+	 * is predictable and `ifconfig laggN create ...` command
+	 * will lead to the same result each time.
+	 */
 	SLIST_FOREACH(tlp, &sc->sc_ports, lp_entries) {
 		if (tlp->lp_ifp->if_index < ifp->if_index && (
 		    SLIST_NEXT(tlp, lp_entries) == NULL ||
-		    SLIST_NEXT(tlp, lp_entries)->lp_ifp->if_index <
+		    SLIST_NEXT(tlp, lp_entries)->lp_ifp->if_index >
 		    ifp->if_index))
 			break;
 	}