[IPV6] SYSCTL: complete initialization for sysctl table in subsystem code.

Move initialization bits for subsystem sysctl tables to
appropriate functions.
 - route
 - icmp

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

net/ipv6/icmp.c

@@ -955,6 +955,10 @@ struct ctl_table *ipv6_icmp_sysctl_init(struct net *net)
 	table = kmemdup(ipv6_icmp_table_template,
 			sizeof(ipv6_icmp_table_template),
 			GFP_KERNEL);
+
+	if (table)
+		table[0].data = &net->ipv6.sysctl.icmpv6_time;
+
 	return table;
 }
 #endif

net/ipv6/route.c

@@ -2505,6 +2505,20 @@ struct ctl_table *ipv6_route_sysctl_init(struct net *net)
 	table = kmemdup(ipv6_route_table_template,
 			sizeof(ipv6_route_table_template),
 			GFP_KERNEL);
+
+	if (table) {
+		table[0].data = &net->ipv6.sysctl.flush_delay;
+		/* table[1].data will be handled when we have
+		   routes per namespace */
+		table[2].data = &net->ipv6.sysctl.ip6_rt_max_size;
+		table[3].data = &net->ipv6.sysctl.ip6_rt_gc_min_interval;
+		table[4].data = &net->ipv6.sysctl.ip6_rt_gc_timeout;
+		table[5].data = &net->ipv6.sysctl.ip6_rt_gc_interval;
+		table[6].data = &net->ipv6.sysctl.ip6_rt_gc_elasticity;
+		table[7].data = &net->ipv6.sysctl.ip6_rt_mtu_expires;
+		table[8].data = &net->ipv6.sysctl.ip6_rt_min_advmss;
+	}
+
 	return table;
 }
 #endif

net/ipv6/sysctl_net_ipv6.c

@@ -71,24 +71,11 @@ static int ipv6_sysctl_net_init(struct net *net)
 	ipv6_route_table = ipv6_route_sysctl_init(net);
 	if (!ipv6_route_table)
 		goto out_ipv6_table;
+	ipv6_table[0].child = ipv6_route_table;
 
 	ipv6_icmp_table = ipv6_icmp_sysctl_init(net);
 	if (!ipv6_icmp_table)
 		goto out_ipv6_route_table;
-
-	ipv6_route_table[0].data = &net->ipv6.sysctl.flush_delay;
-	/* ipv6_route_table[1].data will be handled when we have
-	   routes per namespace */
-	ipv6_route_table[2].data = &net->ipv6.sysctl.ip6_rt_max_size;
-	ipv6_route_table[3].data = &net->ipv6.sysctl.ip6_rt_gc_min_interval;
-	ipv6_route_table[4].data = &net->ipv6.sysctl.ip6_rt_gc_timeout;
-	ipv6_route_table[5].data = &net->ipv6.sysctl.ip6_rt_gc_interval;
-	ipv6_route_table[6].data = &net->ipv6.sysctl.ip6_rt_gc_elasticity;
-	ipv6_route_table[7].data = &net->ipv6.sysctl.ip6_rt_mtu_expires;
-	ipv6_route_table[8].data = &net->ipv6.sysctl.ip6_rt_min_advmss;
-	ipv6_table[0].child = ipv6_route_table;
-
-	ipv6_icmp_table[0].data = &net->ipv6.sysctl.icmpv6_time;
 	ipv6_table[1].child = ipv6_icmp_table;
 
 	ipv6_table[2].data = &net->ipv6.sysctl.bindv6only;