[NET]: Fix sparse warnings

Of this type, mostly:

CHECK   net/ipv6/netfilter.c
net/ipv6/netfilter.c:96:12: warning: symbol 'ipv6_netfilter_init' was not declared. Should it be static?
net/ipv6/netfilter.c:101:6: warning: symbol 'ipv6_netfilter_fini' was not declared. Should it be static?

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index d8e52ed..1fcaa88 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -244,6 +244,7 @@
 };
 #define NETDEV_BOOT_SETUP_MAX 8
 
+extern int __init netdev_boot_setup(char *str);
 
 /*
  *	The DEVICE structure.
@@ -673,6 +674,7 @@
 extern void		dev_init(void);
 
 extern int		netdev_nit;
+extern int		netdev_budget;
 
 /* Called by rtnetlink.c:rtnl_unlock() */
 extern void netdev_run_todo(void);
@@ -908,6 +910,14 @@
 extern void		net_enable_timestamp(void);
 extern void		net_disable_timestamp(void);
 
+#ifdef CONFIG_PROC_FS
+extern void *dev_seq_start(struct seq_file *seq, loff_t *pos);
+extern void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos);
+extern void dev_seq_stop(struct seq_file *seq, void *v);
+#endif
+
+extern void linkwatch_run_queue(void);
+
 #endif /* __KERNEL__ */
 
 #endif	/* _LINUX_DEV_H */