1 files changed, 22 insertions, 8 deletions

diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index f95ff8d9aa47..11cf373970a9 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -30,8 +30,6 @@
 #define IF_PREFIX_ONLINK        0x01
 #define IF_PREFIX_AUTOCONF      0x02
 
-#ifdef __KERNEL__
-
 enum {
         INET6_IFADDR_STATE_DAD,
         INET6_IFADDR_STATE_POSTDAD,
@@ -89,10 +87,11 @@ struct ip6_sf_socklist {
 struct ipv6_mc_socklist {
         struct in6_addr         addr;
         int                     ifindex;
-        struct ipv6_mc_socklist *next;
+        struct ipv6_mc_socklist __rcu *next;
         rwlock_t                sflock;
         unsigned int            sfmode;         /* MCAST_{INCLUDE,EXCLUDE} */
         struct ip6_sf_socklist  *sflist;
+        struct rcu_head         rcu;
 };
 
 struct ip6_sf_list {
@@ -155,8 +154,8 @@ struct ifacaddr6 {
 struct ipv6_devstat {
         struct proc_dir_entry   *proc_dir_entry;
         DEFINE_SNMP_STAT(struct ipstats_mib, ipv6);
-        DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6);
-        DEFINE_SNMP_STAT(struct icmpv6msg_mib, icmpv6msg);
+        DEFINE_SNMP_STAT_ATOMIC(struct icmpv6_mib_device, icmpv6dev);
+        DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device, icmpv6msgdev);
 };
 
 struct inet6_dev {
@@ -195,7 +194,7 @@ struct inet6_dev {
         struct rcu_head         rcu;
 };
 
-static inline void ipv6_eth_mc_map(struct in6_addr *addr, char *buf)
+static inline void ipv6_eth_mc_map(const struct in6_addr *addr, char *buf)
 {
         /*
          *      +-------+-------+-------+-------+-------+-------+
@@ -209,7 +208,7 @@ static inline void ipv6_eth_mc_map(struct in6_addr *addr, char *buf)
         memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32));
 }
 
-static inline void ipv6_tr_mc_map(struct in6_addr *addr, char *buf)
+static inline void ipv6_tr_mc_map(const struct in6_addr *addr, char *buf)
 {
         /* All nodes FF01::1, FF02::1, FF02::1:FFxx:xxxx */
 
@@ -285,5 +284,20 @@ static inline void ipv6_ib_mc_map(const struct in6_addr *addr,
         buf[9]  = broadcast[9];
         memcpy(buf + 10, addr->s6_addr + 6, 10);
 }
-#endif
+
+static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr,
+                                    const unsigned char *broadcast, char *buf)
+{
+        if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) {
+                memcpy(buf, broadcast, 4);
+        } else {
+                /* v4mapped? */
+                if ((addr->s6_addr32[0] | addr->s6_addr32[1] |
+                     (addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0)
+                        return -EINVAL;
+                memcpy(buf, &addr->s6_addr32[3], 4);
+        }
+        return 0;
+}
+
 #endif