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/net/ipv6/route.c b/net/ipv6/route.c
index 90119a3..999a982 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -333,22 +333,22 @@
 	}
 }
 
-static __inline__ int rt6_check_expired(const struct rt6_info *rt)
+static bool rt6_check_expired(const struct rt6_info *rt)
 {
 	struct rt6_info *ort = NULL;
 
 	if (rt->rt6i_flags & RTF_EXPIRES) {
 		if (time_after(jiffies, rt->dst.expires))
-			return 1;
+			return true;
 	} else if (rt->dst.from) {
 		ort = (struct rt6_info *) rt->dst.from;
 		return (ort->rt6i_flags & RTF_EXPIRES) &&
 			time_after(jiffies, ort->dst.expires);
 	}
-	return 0;
+	return false;
 }
 
-static inline int rt6_need_strict(const struct in6_addr *daddr)
+static bool rt6_need_strict(const struct in6_addr *daddr)
 {
 	return ipv6_addr_type(daddr) &
 		(IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK);