[TCP]: Convert several length variable to unsigned.

Several length variables cannot be negative, so convert int to
unsigned int.  This also allows us to do sane shift operations
on those variables.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 5ec1cacca8a1..13ebe11a0af7 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1155,7 +1155,8 @@ extern int			tcp_v4_calc_md5_hash(char *md5_hash,
                                                      struct dst_entry *dst,
                                                      struct request_sock *req,
                                                      struct tcphdr *th,
-                                                     int protocol, int tcplen);
+                                                     int protocol,
+                                                     unsigned int tcplen);
 extern struct tcp_md5sig_key    *tcp_v4_md5_lookup(struct sock *sk,
                                                    struct sock *addr_sk);
 
@@ -1404,7 +1405,8 @@ struct tcp_sock_af_ops {
                                                   struct dst_entry *dst,
                                                   struct request_sock *req,
                                                   struct tcphdr *th,
-                                                  int protocol, int len);
+                                                  int protocol,
+                                                  unsigned int len);
         int                     (*md5_add) (struct sock *sk,
                                             struct sock *addr_sk,
                                             u8 *newkey,