From 7fb16931aff7add0ba6075109ea2a75c04d32363 Mon Sep 17 00:00:00 2001
From: brad <brad@openbsd.org>
Date: Mon, 29 Dec 2014 02:33:13 +0000
Subject: [PATCH] Some cleaning up of the ioctl handling bits to bring things
 in line with the other drivers.

---
 sys/dev/ic/elink3.c | 52 ++++++++++++++++-----------------------------
 1 file changed, 18 insertions(+), 34 deletions(-)

diff --git a/sys/dev/ic/elink3.c b/sys/dev/ic/elink3.c
index 71b72788143..5dbc6bf35db 100644
--- a/sys/dev/ic/elink3.c
+++ b/sys/dev/ic/elink3.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: elink3.c,v 1.81 2014/12/22 02:28:51 tedu Exp $	*/
+/*	$OpenBSD: elink3.c,v 1.82 2014/12/29 02:33:13 brad Exp $	*/
 /*	$NetBSD: elink3.c,v 1.32 1997/05/14 00:22:00 thorpej Exp $	*/
 
 /*
@@ -1440,48 +1440,29 @@ epioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 	switch (cmd) {
 	case SIOCSIFADDR:
 		ifp->if_flags |= IFF_UP;
-
-		switch (ifa->ifa_addr->sa_family) {
-		case AF_INET:
+		if (!(ifp->if_flags & IFF_RUNNING))
 			epinit(sc);
+		if (ifa->ifa_addr->sa_family == AF_INET)
 			arp_ifinit(&sc->sc_arpcom, ifa);
-			break;
-		default:
-			epinit(sc);
-			break;
-		}
 		break;
 
+	case SIOCSIFFLAGS:
+		if (ifp->if_flags & IFF_UP) {
+			if (ifp->if_flags & IFF_RUNNING)
+				error = ENETRESET;
+			else
+				epinit(sc);
+		} else {
+			if (ifp->if_flags & IFF_RUNNING)
+				epstop(sc);
+ 		}
+ 		break;
+
 	case SIOCSIFMEDIA:
 	case SIOCGIFMEDIA:
 		error = ifmedia_ioctl(ifp, ifr, &sc->sc_mii.mii_media, cmd);
 		break;
 
-	case SIOCSIFFLAGS:
-		if ((ifp->if_flags & IFF_UP) == 0 &&
-		    (ifp->if_flags & IFF_RUNNING) != 0) {
-			/*
-			 * If interface is marked down and it is running, then
-			 * stop it.
-			 */
-			epstop(sc);
-			ifp->if_flags &= ~IFF_RUNNING;
-		} else if ((ifp->if_flags & IFF_UP) != 0 &&
-			   (ifp->if_flags & IFF_RUNNING) == 0) {
-			/*
-			 * If interface is marked up and it is stopped, then
-			 * start it.
-			 */
-			epinit(sc);
-		} else if ((ifp->if_flags & IFF_UP) != 0) {
-			/*
-			 * Reset the interface to pick up changes in any other
-			 * flags that affect hardware registers.
-			 */
-			epinit(sc);
-		}
-		break;
-
 	default:
 		error = ether_ioctl(ifp, &sc->sc_arpcom, cmd, data);
 	}
@@ -1520,9 +1501,12 @@ epwatchdog(struct ifnet *ifp)
 void
 epstop(struct ep_softc *sc)
 {
+	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
 	bus_space_tag_t iot = sc->sc_iot;
 	bus_space_handle_t ioh = sc->sc_ioh;
 
+	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
+
 	if (sc->ep_flags & EP_FLAGS_MII) {
 		mii_down(&sc->sc_mii);
 	}
-- 
2.20.1