[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>

include/linux/if_ether.h

@@ -110,6 +110,8 @@ static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
 {
 	return (struct ethhdr *)skb->mac.raw;
 }
+
+extern struct ctl_table ether_table[];
 #endif
 
 #endif	/* _LINUX_IF_ETHER_H */

include/linux/if_frad.h

@@ -191,10 +191,12 @@ struct frad_local
    int               buffer;		/* current buffer for S508 firmware */
 };
 
-extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *));
-
 #endif /* __KERNEL__ */
 
 #endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */
 
+#ifdef __KERNEL__
+extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *));
+#endif
+
 #endif

include/linux/if_tr.h

@@ -43,12 +43,16 @@ struct trh_hdr {
 };
 
 #ifdef __KERNEL__
+#include <linux/config.h>
 #include <linux/skbuff.h>
 
 static inline struct trh_hdr *tr_hdr(const struct sk_buff *skb)
 {
 	return (struct trh_hdr *)skb->mac.raw;
 }
+#ifdef CONFIG_SYSCTL
+extern struct ctl_table tr_table[];
+#endif
 #endif
 
 /* This is an Token-Ring LLC structure */

include/linux/igmp.h

@@ -129,6 +129,9 @@ struct igmpv3_query {
 #include <linux/skbuff.h>
 #include <linux/in.h>
 
+extern int sysctl_igmp_max_memberships;
+extern int sysctl_igmp_max_msf;
+
 struct ip_sf_socklist
 {
 	unsigned int		sl_max;

include/linux/net.h

@@ -286,5 +286,12 @@ static struct proto_ops name##_ops = {			\
 #define MODULE_ALIAS_NET_PF_PROTO(pf, proto) \
 	MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto))
 
+#ifdef CONFIG_SYSCTL
+#include <linux/sysctl.h>
+extern ctl_table net_table[];
+extern int net_msg_cost;
+extern int net_msg_burst;
+#endif
+
 #endif /* __KERNEL__ */
 #endif	/* _LINUX_NET_H */

include/linux/netdevice.h

@@ -244,6 +244,7 @@ struct netdev_boot_setup {
 };
 #define NETDEV_BOOT_SETUP_MAX 8
 
+extern int __init netdev_boot_setup(char *str);
 
 /*
  *	The DEVICE structure.
@@ -673,6 +674,7 @@ extern void		dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev);
 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 int skb_checksum_help(struct sk_buff *skb, int inward);
 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 */

include/linux/netfilter_ipv6.h

@@ -71,7 +71,7 @@ enum nf_ip6_hook_priorities {
 	NF_IP6_PRI_LAST = INT_MAX,
 };
 
-int ipv6_netfilter_init(void);
-void ipv6_netfilter_fini(void);
+extern int ipv6_netfilter_init(void);
+extern void ipv6_netfilter_fini(void);
 
 #endif /*__LINUX_IP6_NETFILTER_H*/

include/linux/security.h

@@ -2727,7 +2727,8 @@ static inline int security_socket_getpeersec(struct socket *sock, char __user *o
 	return security_ops->socket_getpeersec(sock, optval, optlen, len);
 }
 
-static inline int security_sk_alloc(struct sock *sk, int family, int priority)
+static inline int security_sk_alloc(struct sock *sk, int family,
+				    unsigned int __nocast priority)
 {
 	return security_ops->sk_alloc_security(sk, family, priority);
 }
@@ -2844,7 +2845,8 @@ static inline int security_socket_getpeersec(struct socket *sock, char __user *o
 	return -ENOPROTOOPT;
 }
 
-static inline int security_sk_alloc(struct sock *sk, int family, int priority)
+static inline int security_sk_alloc(struct sock *sk, int family,
+				    unsigned int __nocast priority)
 {
 	return 0;
 }

include/linux/skbuff.h

@@ -1203,6 +1203,8 @@ extern void	       skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to);
 extern void	       skb_split(struct sk_buff *skb,
 				 struct sk_buff *skb1, const u32 len);
 
+extern void	       skb_release_data(struct sk_buff *skb);
+
 static inline void *skb_header_pointer(const struct sk_buff *skb, int offset,
 				       int len, void *buffer)
 {

include/linux/socket.h

@@ -26,6 +26,13 @@ struct __kernel_sockaddr_storage {
 #include <linux/types.h>		/* pid_t			*/
 #include <linux/compiler.h>		/* __user			*/
 
+extern int sysctl_somaxconn;
+extern void sock_init(void);
+#ifdef CONFIG_PROC_FS
+struct seq_file;
+extern void socket_seq_show(struct seq_file *seq);
+#endif
+
 typedef unsigned short	sa_family_t;
 
 /*

include/net/addrconf.h

@@ -45,6 +45,7 @@ struct prefix_info {
 
 #ifdef __KERNEL__
 
+#include <linux/config.h>
 #include <linux/netdevice.h>
 #include <net/if_inet6.h>
 #include <net/ipv6.h>
@@ -238,5 +239,10 @@ static inline int ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
 		addr->s6_addr32[3] == htonl(0x00000002));
 }
 
+#ifdef CONFIG_PROC_FS
+extern int if6_proc_init(void);
+extern void if6_proc_exit(void);
+#endif
+
 #endif
 #endif

include/net/af_unix.h

 #ifndef __LINUX_NET_AFUNIX_H
 #define __LINUX_NET_AFUNIX_H
+
+#include <linux/config.h>
+#include <linux/socket.h>
+#include <linux/un.h>
+#include <net/sock.h>
+
 extern void unix_inflight(struct file *fp);
 extern void unix_notinflight(struct file *fp);
 extern void unix_gc(void);
@@ -74,5 +80,14 @@ struct unix_sock {
         wait_queue_head_t       peer_wait;
 };
 #define unix_sk(__sk) ((struct unix_sock *)__sk)
+
+#ifdef CONFIG_SYSCTL
+extern int sysctl_unix_max_dgram_qlen;
+extern void unix_sysctl_register(void);
+extern void unix_sysctl_unregister(void);
+#else
+static inline void unix_sysctl_register(void) {}
+static inline void unix_sysctl_unregister(void) {}
+#endif
 #endif
 #endif

include/net/icmp.h

@@ -57,4 +57,11 @@ static inline struct raw_sock *raw_sk(const struct sock *sk)
 	return (struct raw_sock *)sk;
 }
 
+extern int sysctl_icmp_echo_ignore_all;
+extern int sysctl_icmp_echo_ignore_broadcasts;
+extern int sysctl_icmp_ignore_bogus_error_responses;
+extern int sysctl_icmp_errors_use_inbound_ifaddr;
+extern int sysctl_icmp_ratelimit;
+extern int sysctl_icmp_ratemask;
+
 #endif	/* _ICMP_H */

include/net/ip.h

@@ -163,6 +163,24 @@ extern int sysctl_local_port_range[2];
 extern int sysctl_ip_default_ttl;
 extern int sysctl_ip_nonlocal_bind;
 
+/* From ip_fragment.c */
+extern int sysctl_ipfrag_high_thresh; 
+extern int sysctl_ipfrag_low_thresh;
+extern int sysctl_ipfrag_time;
+extern int sysctl_ipfrag_secret_interval;
+
+/* From inetpeer.c */
+extern int inet_peer_threshold;
+extern int inet_peer_minttl;
+extern int inet_peer_maxttl;
+extern int inet_peer_gc_mintime;
+extern int inet_peer_gc_maxtime;
+
+/* From ip_output.c */
+extern int sysctl_ip_dynaddr;
+
+extern void ipfrag_init(void);
+
 #ifdef CONFIG_INET
 /* The function in 2.2 was invalid, producing wrong result for
  * check=0xFEFF. It was noticed by Arthur Skawina _year_ ago. --ANK(000625) */
@@ -348,5 +366,10 @@ int ipv4_doint_and_flush_strategy(ctl_table *table, int __user *name, int nlen,
 				  void __user *oldval, size_t __user *oldlenp,
 				  void __user *newval, size_t newlen, 
 				  void **context);
+#ifdef CONFIG_PROC_FS
+extern int ip_misc_proc_init(void);
+#endif
+
+extern struct ctl_table ipv4_table[];
 
 #endif	/* _IP_H */

include/net/ip_fib.h

@@ -295,4 +295,9 @@ static inline void fib_res_put(struct fib_result *res)
 #endif
 }
 
+#ifdef CONFIG_PROC_FS
+extern int  fib_proc_init(void);
+extern void fib_proc_exit(void);
+#endif
+
 #endif  /* _NET_FIB_H */

include/net/ipv6.h

@@ -104,6 +104,7 @@ struct frag_hdr {
 
 #ifdef __KERNEL__
 
+#include <linux/config.h>
 #include <net/sock.h>
 
 /* sysctls */
@@ -464,8 +465,38 @@ extern int sysctl_ip6frag_low_thresh;
 extern int sysctl_ip6frag_time;
 extern int sysctl_ip6frag_secret_interval;
 
-#endif /* __KERNEL__ */
-#endif /* _NET_IPV6_H */
+extern struct proto_ops inet6_stream_ops;
+extern struct proto_ops inet6_dgram_ops;
+
+extern int ip6_mc_source(int add, int omode, struct sock *sk,
+			 struct group_source_req *pgsr);
+extern int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf);
+extern int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
+			 struct group_filter __user *optval,
+			 int __user *optlen);
+
+#ifdef CONFIG_PROC_FS
+extern int  ac6_proc_init(void);
+extern void ac6_proc_exit(void);
+extern int  raw6_proc_init(void);
+extern void raw6_proc_exit(void);
+extern int  tcp6_proc_init(void);
+extern void tcp6_proc_exit(void);
+extern int  udp6_proc_init(void);
+extern void udp6_proc_exit(void);
+extern int  ipv6_misc_proc_init(void);
+extern void ipv6_misc_proc_exit(void);
+
+extern struct rt6_statistics rt6_stats;
+#endif
 
+#ifdef CONFIG_SYSCTL
+extern ctl_table ipv6_route_table[];
+extern ctl_table ipv6_icmp_table[];
 
+extern void ipv6_sysctl_register(void);
+extern void ipv6_sysctl_unregister(void);
+#endif
 
+#endif /* __KERNEL__ */
+#endif /* _NET_IPV6_H */

include/net/p8022.h

@@ -8,4 +8,6 @@ extern struct datalink_proto *
 					 struct net_device *orig_dev));
 extern void unregister_8022_client(struct datalink_proto *proto);
 
+extern struct datalink_proto *make_8023_client(void);
+extern void destroy_8023_client(struct datalink_proto *dl);
 #endif

include/net/raw.h

@@ -17,10 +17,10 @@
 #ifndef _RAW_H
 #define _RAW_H
 
+#include <linux/config.h>
 
 extern struct proto raw_prot;
 
-
 extern void 	raw_err(struct sock *, struct sk_buff *, u32 info);
 extern int 	raw_rcv(struct sock *, struct sk_buff *);
 
@@ -39,4 +39,9 @@ extern struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num,
 
 extern int raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash);
 
+#ifdef CONFIG_PROC_FS
+extern int  raw_proc_init(void);
+extern void raw_proc_exit(void);
+#endif
+
 #endif	/* _RAW_H */

include/net/route.h

@@ -195,4 +195,6 @@ static inline struct inet_peer *rt_get_peer(struct rtable *rt)
 	return rt->peer;
 }
 
+extern ctl_table ipv4_route_table[];
+
 #endif	/* _ROUTE_H */

include/net/sock.h

@@ -1370,4 +1370,16 @@ static inline int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsign
 }
 #endif
 
+extern void sk_init(void);
+
+#ifdef CONFIG_SYSCTL
+extern struct ctl_table core_table[];
+extern int sysctl_optmem_max;
+#endif
+
+#ifdef CONFIG_PROC_FS
+extern __u32 sysctl_wmem_default;
+extern __u32 sysctl_rmem_default;
+#endif
+
 #endif	/* _SOCK_H */