[NET]: Possible cleanups.

This patch contains the following possible cleanups:
- make the following needlessly global functions statis:
  - ipv4/tcp.c: __tcp_alloc_md5sig_pool()
  - ipv4/tcp_ipv4.c: tcp_v4_reqsk_md5_lookup()
  - ipv4/udplite.c: udplite_rcv()
  - ipv4/udplite.c: udplite_err()
- make the following needlessly global structs static:
  - ipv4/tcp_ipv4.c: tcp_request_sock_ipv4_ops
  - ipv4/tcp_ipv4.c: tcp_sock_ipv4_specific
  - ipv6/tcp_ipv6.c: tcp_request_sock_ipv6_ops
- net/ipv{4,6}/udplite.c: remove inline's from static functions
                          (gcc should know best when to inline them)

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index dd3509a..7684297 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -840,8 +840,8 @@
 
 EXPORT_SYMBOL(tcp_v4_md5_lookup);
 
-struct tcp_md5sig_key *tcp_v4_reqsk_md5_lookup(struct sock *sk,
-					       struct request_sock *req)
+static struct tcp_md5sig_key *tcp_v4_reqsk_md5_lookup(struct sock *sk,
+						      struct request_sock *req)
 {
 	return tcp_v4_md5_do_lookup(sk, inet_rsk(req)->rmt_addr);
 }
@@ -1233,7 +1233,7 @@
 	.send_reset	=	tcp_v4_send_reset,
 };
 
-struct tcp_request_sock_ops tcp_request_sock_ipv4_ops = {
+static struct tcp_request_sock_ops tcp_request_sock_ipv4_ops = {
 #ifdef CONFIG_TCP_MD5SIG
 	.md5_lookup	=	tcp_v4_reqsk_md5_lookup,
 #endif
@@ -1820,7 +1820,7 @@
 #endif
 };
 
-struct tcp_sock_af_ops tcp_sock_ipv4_specific = {
+static struct tcp_sock_af_ops tcp_sock_ipv4_specific = {
 #ifdef CONFIG_TCP_MD5SIG
 	.md5_lookup		= tcp_v4_md5_lookup,
 	.calc_md5_hash		= tcp_v4_calc_md5_hash,