[src/trunk]: src/sys/netipsec Simplify ipsec_reinject_ipstack (NFC)

[ozaki-r <ozaki-r%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/06b4dc121ec3
branches:  trunk
changeset: 355686:06b4dc121ec3
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Thu Aug 10 06:08:59 2017 +0000

description:
Simplify ipsec_reinject_ipstack (NFC)

diffstat:

 sys/netipsec/ipsec_output.c |  36 ++++++++++++++----------------------
 1 files changed, 14 insertions(+), 22 deletions(-)

diffs (74 lines):

diff -r 60abf3862d4d -r 06b4dc121ec3 sys/netipsec/ipsec_output.c
--- a/sys/netipsec/ipsec_output.c       Thu Aug 10 04:31:58 2017 +0000
+++ b/sys/netipsec/ipsec_output.c       Thu Aug 10 06:08:59 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ipsec_output.c,v 1.58 2017/08/03 06:32:51 ozaki-r Exp $        */
+/*     $NetBSD: ipsec_output.c,v 1.59 2017/08/10 06:08:59 ozaki-r Exp $        */
 
 /*-
  * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ipsec_output.c,v 1.58 2017/08/03 06:32:51 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ipsec_output.c,v 1.59 2017/08/10 06:08:59 ozaki-r Exp $");
 
 /*
  * IPsec output processing.
@@ -111,43 +111,35 @@
 static int
 ipsec_reinject_ipstack(struct mbuf *m, int af)
 {
-#if defined(INET) || defined(INET6)
-       int rv;
+       int rv = -1;
+
+       KASSERT(af == AF_INET || af == AF_INET6);
+
+#ifndef NET_MPSAFE
+       KERNEL_LOCK(1, NULL);
 #endif
-
        switch (af) {
 #ifdef INET
        case AF_INET:
-#ifndef NET_MPSAFE
-               KERNEL_LOCK(1, NULL);
-#endif
                rv = ip_output(m, NULL, NULL, IP_RAWOUTPUT|IP_NOIPNEWID,
                    NULL, NULL);
-#ifndef NET_MPSAFE
-               KERNEL_UNLOCK_ONE(NULL);
+               break;
 #endif
-               return rv;
-
-#endif /* INET */
 #ifdef INET6
        case AF_INET6:
                /*
                 * We don't need massage, IPv6 header fields are always in
                 * net endian.
                 */
-#ifndef NET_MPSAFE
-               KERNEL_LOCK(1, NULL);
-#endif
                rv = ip6_output(m, NULL, NULL, 0, NULL, NULL, NULL);
-#ifndef NET_MPSAFE
-               KERNEL_UNLOCK_ONE(NULL);
+               break;
 #endif
-               return rv;
-#endif /* INET6 */
        }
+#ifndef NET_MPSAFE
+       KERNEL_UNLOCK_ONE(NULL);
+#endif
 
-       panic("ipsec_reinject_ipstack : iunknown protocol family %u\n", af);
-       return -1; /* NOTREACHED */
+       return rv;
 }
 
 int