Commit 25450a8d authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller

[TCP]: use const in tcp.h

Signed-off-by: default avatarStephen Hemminger <shemminger@osdl.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a9d9697a
......@@ -961,8 +961,8 @@ extern void tcp_send_delayed_ack(struct sock *sk);
extern void tcp_init_xmit_timers(struct sock *);
extern void tcp_clear_xmit_timers(struct sock *);
extern void tcp_delete_keepalive_timer (struct sock *);
extern void tcp_reset_keepalive_timer (struct sock *, unsigned long);
extern void tcp_delete_keepalive_timer(struct sock *);
extern void tcp_reset_keepalive_timer(struct sock *, unsigned long);
extern unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu);
extern unsigned int tcp_current_mss(struct sock *sk, int large);
......@@ -1083,7 +1083,7 @@ static inline void tcp_fast_path_check(struct sock *sk, struct tcp_opt *tp)
* Rcv_nxt can be after the window if our peer push more data
* than the offered window.
*/
static __inline__ u32 tcp_receive_window(struct tcp_opt *tp)
static __inline__ u32 tcp_receive_window(const struct tcp_opt *tp)
{
s32 win = tp->rcv_wup + tp->rcv_wnd - tp->rcv_nxt;
......@@ -1161,18 +1161,19 @@ struct tcp_skb_cb {
/* Due to TSO, an SKB can be composed of multiple actual
* packets. To keep these tracked properly, we use this.
*/
static inline int tcp_skb_pcount(struct sk_buff *skb)
static inline int tcp_skb_pcount(const struct sk_buff *skb)
{
return skb_shinfo(skb)->tso_segs;
}
/* This is valid iff tcp_skb_pcount() > 1. */
static inline int tcp_skb_mss(struct sk_buff *skb)
static inline int tcp_skb_mss(const struct sk_buff *skb)
{
return skb_shinfo(skb)->tso_size;
}
static inline void tcp_inc_pcount(tcp_pcount_t *count, struct sk_buff *skb)
static inline void tcp_inc_pcount(tcp_pcount_t *count,
const struct sk_buff *skb)
{
count->val += tcp_skb_pcount(skb);
}
......@@ -1187,13 +1188,14 @@ static inline void tcp_dec_pcount_explicit(tcp_pcount_t *count, int amt)
count->val -= amt;
}
static inline void tcp_dec_pcount(tcp_pcount_t *count, struct sk_buff *skb)
static inline void tcp_dec_pcount(tcp_pcount_t *count,
const struct sk_buff *skb)
{
count->val -= tcp_skb_pcount(skb);
}
static inline void tcp_dec_pcount_approx(tcp_pcount_t *count,
struct sk_buff *skb)
const struct sk_buff *skb)
{
if (count->val) {
count->val -= tcp_skb_pcount(skb);
......@@ -1202,7 +1204,7 @@ static inline void tcp_dec_pcount_approx(tcp_pcount_t *count,
}
}
static inline __u32 tcp_get_pcount(tcp_pcount_t *count)
static inline __u32 tcp_get_pcount(const tcp_pcount_t *count)
{
return count->val;
}
......@@ -1212,8 +1214,9 @@ static inline void tcp_set_pcount(tcp_pcount_t *count, __u32 val)
count->val = val;
}
static inline void tcp_packets_out_inc(struct sock *sk, struct tcp_opt *tp,
struct sk_buff *skb)
static inline void tcp_packets_out_inc(struct sock *sk,
struct tcp_opt *tp,
const struct sk_buff *skb)
{
int orig = tcp_get_pcount(&tp->packets_out);
......@@ -1222,7 +1225,8 @@ static inline void tcp_packets_out_inc(struct sock *sk, struct tcp_opt *tp,
tcp_reset_xmit_timer(sk, TCP_TIME_RETRANS, tp->rto);
}
static inline void tcp_packets_out_dec(struct tcp_opt *tp, struct sk_buff *skb)
static inline void tcp_packets_out_dec(struct tcp_opt *tp,
const struct sk_buff *skb)
{
tcp_dec_pcount(&tp->packets_out, skb);
}
......@@ -1241,7 +1245,7 @@ static inline void tcp_packets_out_dec(struct tcp_opt *tp, struct sk_buff *skb)
* "Packets left network, but not honestly ACKed yet" PLUS
* "Packets fast retransmitted"
*/
static __inline__ unsigned int tcp_packets_in_flight(struct tcp_opt *tp)
static __inline__ unsigned int tcp_packets_in_flight(const struct tcp_opt *tp)
{
return (tcp_get_pcount(&tp->packets_out) -
tcp_get_pcount(&tp->left_out) +
......@@ -1408,18 +1412,19 @@ extern __u32 tcp_init_cwnd(struct tcp_opt *tp, struct dst_entry *dst);
/* Slow start with delack produces 3 packets of burst, so that
* it is safe "de facto".
*/
static __inline__ __u32 tcp_max_burst(struct tcp_opt *tp)
static __inline__ __u32 tcp_max_burst(const struct tcp_opt *tp)
{
return 3;
}
static __inline__ int tcp_minshall_check(struct tcp_opt *tp)
static __inline__ int tcp_minshall_check(const struct tcp_opt *tp)
{
return after(tp->snd_sml,tp->snd_una) &&
!after(tp->snd_sml, tp->snd_nxt);
}
static __inline__ void tcp_minshall_update(struct tcp_opt *tp, int mss, struct sk_buff *skb)
static __inline__ void tcp_minshall_update(struct tcp_opt *tp, int mss,
const struct sk_buff *skb)
{
if (skb->len < mss)
tp->snd_sml = TCP_SKB_CB(skb)->end_seq;
......@@ -1434,7 +1439,8 @@ static __inline__ void tcp_minshall_update(struct tcp_opt *tp, int mss, struct s
*/
static __inline__ int
tcp_nagle_check(struct tcp_opt *tp, struct sk_buff *skb, unsigned mss_now, int nonagle)
tcp_nagle_check(const struct tcp_opt *tp, const struct sk_buff *skb,
unsigned mss_now, int nonagle)
{
return (skb->len < mss_now &&
!(TCP_SKB_CB(skb)->flags & TCPCB_FLAG_FIN) &&
......@@ -1449,7 +1455,8 @@ extern void tcp_set_skb_tso_segs(struct sk_buff *, unsigned int);
/* This checks if the data bearing packet SKB (usually sk->sk_send_head)
* should be put on the wire right now.
*/
static __inline__ int tcp_snd_test(struct tcp_opt *tp, struct sk_buff *skb,
static __inline__ int tcp_snd_test(const struct tcp_opt *tp,
struct sk_buff *skb,
unsigned cur_mss, int nonagle)
{
int pkts = tcp_skb_pcount(skb);
......@@ -1496,7 +1503,8 @@ static __inline__ void tcp_check_probe_timer(struct sock *sk, struct tcp_opt *tp
tcp_reset_xmit_timer(sk, TCP_TIME_PROBE0, tp->rto);
}
static __inline__ int tcp_skb_is_last(struct sock *sk, struct sk_buff *skb)
static __inline__ int tcp_skb_is_last(const struct sock *sk,
const struct sk_buff *skb)
{
return skb->next == (struct sk_buff *)&sk->sk_write_queue;
}
......@@ -1547,7 +1555,7 @@ static __inline__ void tcp_update_wl(struct tcp_opt *tp, u32 ack, u32 seq)
tp->snd_wl1 = seq;
}
extern void tcp_destroy_sock(struct sock *sk);
extern void tcp_destroy_sock(struct sock *sk);
/*
......@@ -1621,7 +1629,7 @@ static __inline__ int tcp_prequeue(struct sock *sk, struct sk_buff *skb)
#undef STATE_TRACE
#ifdef STATE_TRACE
static char *statename[]={
static const char *statename[]={
"Unused","Established","Syn Sent","Syn Recv",
"Fin Wait 1","Fin Wait 2","Time Wait", "Close",
"Close Wait","Last ACK","Listen","Closing"
......@@ -1892,17 +1900,17 @@ static inline void tcp_listen_unlock(void)
wake_up(&tcp_lhash_wait);
}
static inline int keepalive_intvl_when(struct tcp_opt *tp)
static inline int keepalive_intvl_when(const struct tcp_opt *tp)
{
return tp->keepalive_intvl ? : sysctl_tcp_keepalive_intvl;
}
static inline int keepalive_time_when(struct tcp_opt *tp)
static inline int keepalive_time_when(const struct tcp_opt *tp)
{
return tp->keepalive_time ? : sysctl_tcp_keepalive_time;
}
static inline int tcp_fin_time(struct tcp_opt *tp)
static inline int tcp_fin_time(const struct tcp_opt *tp)
{
int fin_timeout = tp->linger2 ? : sysctl_tcp_fin_timeout;
......@@ -1912,7 +1920,7 @@ static inline int tcp_fin_time(struct tcp_opt *tp)
return fin_timeout;
}
static inline int tcp_paws_check(struct tcp_opt *tp, int rst)
static inline int tcp_paws_check(const struct tcp_opt *tp, int rst)
{
if ((s32)(tp->rcv_tsval - tp->ts_recent) >= 0)
return 0;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment