Fix SIOCDELLABEL/"ifconfig mpe0 -mplslabel" to unset label completely

While the corresponding route gets removed properly, the driver's softc
kept the old label, i.e. "ifconfig mpe0" would show "mpls: label 42"
instead of "mpls: label (unset)" even though it was unset.

OK claudio

diff --git a/sys/net/if_mpe.c b/sys/net/if_mpe.c
index f6b3940..5d14bfc 100644 (file)
--- a/sys/net/if_mpe.c
+++ b/sys/net/if_mpe.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: if_mpe.c,v 1.98 2021/02/20 05:03:37 dlg Exp $ */
+/* $OpenBSD: if_mpe.c,v 1.99 2021/03/18 14:47:17 kn Exp $ */
 
 /*
  * Copyright (c) 2008 Pierre-Yves Ritschard <pyr@spootnik.org>
@@ -401,7 +401,7 @@ mpe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
                            smplstosa(&sc->sc_smpls), sc->sc_rdomain);
                
                }
-               shim.shim_label = MPLS_LABEL2SHIM(0);
+               sc->sc_smpls.smpls_label = MPLS_LABEL2SHIM(0);
                break;
 
        case SIOCSLIFPHYRTABLE: