ipv6: bool/const conversions phase2

Mostly bool conversions, some inline removals and const additions.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 27f450b..f2b801c 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -131,9 +131,9 @@
 extern int ipv6_sock_mc_drop(struct sock *sk, int ifindex,
 			     const struct in6_addr *addr);
 extern void ipv6_sock_mc_close(struct sock *sk);
-extern int inet6_mc_check(struct sock *sk,
-			  const struct in6_addr *mc_addr,
-			  const struct in6_addr *src_addr);
+extern bool inet6_mc_check(struct sock *sk,
+			   const struct in6_addr *mc_addr,
+			   const struct in6_addr *src_addr);
 
 extern int ipv6_dev_mc_inc(struct net_device *dev, const struct in6_addr *addr);
 extern int __ipv6_dev_mc_dec(struct inet6_dev *idev, const struct in6_addr *addr);
@@ -146,10 +146,10 @@
 extern void ipv6_mc_destroy_dev(struct inet6_dev *idev);
 extern void addrconf_dad_failure(struct inet6_ifaddr *ifp);
 
-extern int ipv6_chk_mcast_addr(struct net_device *dev,
-			       const struct in6_addr *group,
-			       const struct in6_addr *src_addr);
-extern int ipv6_is_mld(struct sk_buff *skb, int nexthdr);
+extern bool ipv6_chk_mcast_addr(struct net_device *dev,
+				const struct in6_addr *group,
+				const struct in6_addr *src_addr);
+extern bool ipv6_is_mld(struct sk_buff *skb, int nexthdr);
 
 extern void addrconf_prefix_rcv(struct net_device *dev,
 				u8 *opt, int len, bool sllao);
@@ -163,8 +163,8 @@
 
 extern int ipv6_dev_ac_inc(struct net_device *dev, const struct in6_addr *addr);
 extern int __ipv6_dev_ac_dec(struct inet6_dev *idev, const struct in6_addr *addr);
-extern int ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
-			       const struct in6_addr *addr);
+extern bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
+				const struct in6_addr *addr);
 
 
 /* Device notifier */