Useless splnet()

[Martin Pieuchot]

bstp_create() is called on by bridge/switch_clone_create().  Nothing it
touches is reachable, so there's no need for splnet().

ok?

Index: net/bridgestp.c
===================================================================
RCS file: /cvs/src/sys/net/bridgestp.c,v
retrieving revision 1.66
diff -u -p -r1.66 bridgestp.c
--- net/bridgestp.c     22 Oct 2018 13:18:23 -0000      1.66
+++ net/bridgestp.c     5 Dec 2018 17:53:51 -0000
@@ -1897,9 +1897,7 @@ struct bstp_state *
 bstp_create(struct ifnet *ifp)
 {
        struct bstp_state *bs;
-       int s;
 
-       s = splnet();
        bs = malloc(sizeof(*bs), M_DEVBUF, M_WAITOK|M_ZERO);
        LIST_INIT(&bs->bs_bplist);
 
@@ -1914,8 +1912,6 @@ bstp_create(struct ifnet *ifp)
        bs->bs_protover = BSTP_PROTO_RSTP;      /* STP instead of RSTP? */
 
        getmicrotime(&bs->bs_last_tc_time);
-
-       splx(s);
 
        return (bs);
 }