[LLC]: Fix sparse warnings

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
diff --git a/net/llc/sysctl_net_llc.c b/net/llc/sysctl_net_llc.c
index 4d99d2f..d1eaddb 100644
--- a/net/llc/sysctl_net_llc.c
+++ b/net/llc/sysctl_net_llc.c
@@ -8,17 +8,12 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/sysctl.h>
+#include <net/llc.h>
 
 #ifndef CONFIG_SYSCTL
 #error This file should not be compiled without CONFIG_SYSCTL defined
 #endif
 
-extern int sysctl_llc2_ack_timeout;
-extern int sysctl_llc2_busy_timeout;
-extern int sysctl_llc2_p_timeout;
-extern int sysctl_llc2_rej_timeout;
-extern int sysctl_llc_station_ack_timeout;
-
 static struct ctl_table llc2_timeout_table[] = {
 	{
 		.ctl_name	= NET_LLC2_ACK_TIMEOUT,