[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>
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index fc9bdd8..9aea88b 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -99,7 +99,7 @@
static int tcp_v4_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,
__be32 saddr, __be32 daddr,
struct tcphdr *th, int protocol,
- int tcplen);
+ unsigned int tcplen);
#endif
struct inet_hashinfo __cacheline_aligned tcp_hashinfo = {
@@ -1020,7 +1020,7 @@
static int tcp_v4_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,
__be32 saddr, __be32 daddr,
struct tcphdr *th, int protocol,
- int tcplen)
+ unsigned int tcplen)
{
struct scatterlist sg[4];
__u16 data_len;
@@ -1113,7 +1113,7 @@
struct dst_entry *dst,
struct request_sock *req,
struct tcphdr *th, int protocol,
- int tcplen)
+ unsigned int tcplen)
{
__be32 saddr, daddr;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 0268e11..00c0839 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -733,7 +733,7 @@
struct in6_addr *saddr,
struct in6_addr *daddr,
struct tcphdr *th, int protocol,
- int tcplen)
+ unsigned int tcplen)
{
struct scatterlist sg[4];
__u16 data_len;
@@ -818,7 +818,7 @@
struct dst_entry *dst,
struct request_sock *req,
struct tcphdr *th, int protocol,
- int tcplen)
+ unsigned int tcplen)
{
struct in6_addr *saddr, *daddr;
@@ -985,7 +985,7 @@
struct tcphdr *th = tcp_hdr(skb), *t1;
struct sk_buff *buff;
struct flowi fl;
- int tot_len = sizeof(*th);
+ unsigned int tot_len = sizeof(*th);
#ifdef CONFIG_TCP_MD5SIG
struct tcp_md5sig_key *key;
#endif
@@ -1085,7 +1085,7 @@
struct tcphdr *th = tcp_hdr(skb), *t1;
struct sk_buff *buff;
struct flowi fl;
- int tot_len = sizeof(struct tcphdr);
+ unsigned int tot_len = sizeof(struct tcphdr);
__be32 *topt;
#ifdef CONFIG_TCP_MD5SIG
struct tcp_md5sig_key *key;