[IPV6] MIP6: Kill unnecessary ifdefs.

Kill unnecessary CONFIG_IPV6_MIP6.

o It is redundant for RAW socket to keep MH out with the config then
  it can handle any protocol.
o Clean-up at AH.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 2 insertions, 12 deletions

diff --git a/include/net/flow.h b/include/net/flow.h
index f3cc1f812619..af59fa5cc1f8 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -67,20 +67,16 @@ struct flowi {
 
                 __be32          spi;
 
-#ifdef CONFIG_IPV6_MIP6
                 struct {
                         __u8    type;
                 } mht;
-#endif
         } uli_u;
 #define fl_ip_sport     uli_u.ports.sport
 #define fl_ip_dport     uli_u.ports.dport
 #define fl_icmp_type    uli_u.icmpt.type
 #define fl_icmp_code    uli_u.icmpt.code
 #define fl_ipsec_spi    uli_u.spi
-#ifdef CONFIG_IPV6_MIP6
 #define fl_mh_type      uli_u.mht.type
-#endif
         __u32           secid;  /* used by xfrm; see secid.txt */
 } __attribute__((__aligned__(BITS_PER_LONG/8)));
 
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 311f25af5e1a..7720c1182bb4 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -509,11 +509,9 @@ __be16 xfrm_flowi_sport(struct flowi *fl)
         case IPPROTO_ICMPV6:
                 port = htons(fl->fl_icmp_type);
                 break;
-#ifdef CONFIG_IPV6_MIP6
         case IPPROTO_MH:
                 port = htons(fl->fl_mh_type);
                 break;
-#endif
         default:
                 port = 0;       /*XXX*/
         }
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 128f94c79c64..01fa302d281e 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -132,6 +132,8 @@ static void ipv6_rearrange_destopt(struct ipv6hdr *iph, struct ipv6_opt_hdr *des
 bad:
         return;
 }
+#else
+static void ipv6_rearrange_destopt(struct ipv6hdr *iph, struct ipv6_opt_hdr *destopt) {}
 #endif
 
 /**
@@ -189,10 +191,8 @@ static int ipv6_clear_mutable_options(struct ipv6hdr *iph, int len, int dir)
         while (exthdr.raw < end) {
                 switch (nexthdr) {
                 case NEXTHDR_DEST:
-#ifdef CONFIG_IPV6_MIP6
                         if (dir == XFRM_POLICY_OUT)
                                 ipv6_rearrange_destopt(iph, exthdr.opth);
-#endif
                 case NEXTHDR_HOP:
                         if (!zero_out_mutable_opts(exthdr.opth)) {
                                 LIMIT_NETDEBUG(
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index a58459a76684..a22c9c93d931 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -611,9 +611,7 @@ static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
         struct iovec *iov;
         u8 __user *type = NULL;
         u8 __user *code = NULL;
-#ifdef CONFIG_IPV6_MIP6
         u8 len = 0;
-#endif
         int probed = 0;
         int i;
 
@@ -646,7 +644,6 @@ static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
                                 probed = 1;
                         }
                         break;
-#ifdef CONFIG_IPV6_MIP6
                 case IPPROTO_MH:
                         if (iov->iov_base && iov->iov_len < 1)
                                 break;
@@ -660,7 +657,6 @@ static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
                                 len += iov->iov_len;
 
                         break;
-#endif
                 default:
                         probed = 1;
                         break;