GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-21 14:11:20 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

tcp: change TCP_ECN prefixes to lower case

Browse source 
Suggested by Stephen. Also drop inline keyword and let compiler decide.

gcc 4.7.3 decides to no longer inline tcp_ecn_check_ce, so split it up.
The actual evaluation is not inlined anymore while the ECN_OK test is.

Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal 2014-09-29 13:08:30 +02:00 • committed by David S. Miller
parent d82bd12298
commit 735d383117
3 changed files with 34 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

41
net/ipv4/tcp_input.c
View file

@ -201,28 +201,25 @@ static inline bool tcp_in_quickack_mode(const struct sock *sk)
return icsk->icsk_ack.quick && !icsk->icsk_ack.pingpong;
}
static inline void TCP_ECN_queue_cwr(struct tcp_sock *tp)
static void tcp_ecn_queue_cwr(struct tcp_sock *tp)
{
if (tp->ecn_flags & TCP_ECN_OK)
tp->ecn_flags |= TCP_ECN_QUEUE_CWR;
}
static inline void TCP_ECN_accept_cwr(struct tcp_sock *tp, const struct sk_buff *skb)
static void tcp_ecn_accept_cwr(struct tcp_sock *tp, const struct sk_buff *skb)
{
if (tcp_hdr(skb)->cwr)
tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR;
}
static inline void TCP_ECN_withdraw_cwr(struct tcp_sock *tp)
static void tcp_ecn_withdraw_cwr(struct tcp_sock *tp)
{
tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR;
}
static inline void TCP_ECN_check_ce(struct tcp_sock *tp, const struct sk_buff *skb)
static void __tcp_ecn_check_ce(struct tcp_sock *tp, const struct sk_buff *skb)
{
if (!(tp->ecn_flags & TCP_ECN_OK))
return;
switch (TCP_SKB_CB(skb)->ip_dsfield & INET_ECN_MASK) {
case INET_ECN_NOT_ECT:
/* Funny extension: if ECT is not set on a segment,
@ -251,19 +248,25 @@ static inline void TCP_ECN_check_ce(struct tcp_sock *tp, const struct sk_buff *s
}
}
static inline void TCP_ECN_rcv_synack(struct tcp_sock *tp, const struct tcphdr *th)
static void tcp_ecn_check_ce(struct tcp_sock *tp, const struct sk_buff *skb)
{
if (tp->ecn_flags & TCP_ECN_OK)
__tcp_ecn_check_ce(tp, skb);
}
static void tcp_ecn_rcv_synack(struct tcp_sock *tp, const struct tcphdr *th)
{
if ((tp->ecn_flags & TCP_ECN_OK) && (!th->ece || th->cwr))
tp->ecn_flags &= ~TCP_ECN_OK;
}
static inline void TCP_ECN_rcv_syn(struct tcp_sock *tp, const struct tcphdr *th)
static void tcp_ecn_rcv_syn(struct tcp_sock *tp, const struct tcphdr *th)
{
if ((tp->ecn_flags & TCP_ECN_OK) && (!th->ece || !th->cwr))
tp->ecn_flags &= ~TCP_ECN_OK;
}
static bool TCP_ECN_rcv_ecn_echo(const struct tcp_sock *tp, const struct tcphdr *th)
static bool tcp_ecn_rcv_ecn_echo(const struct tcp_sock *tp, const struct tcphdr *th)
{
if (th->ece && !th->syn && (tp->ecn_flags & TCP_ECN_OK))
return true;
@ -660,7 +663,7 @@ static void tcp_event_data_recv(struct sock *sk, struct sk_buff *skb)
}
icsk->icsk_ack.lrcvtime = now;
TCP_ECN_check_ce(tp, skb);
tcp_ecn_check_ce(tp, skb);
if (skb->len >= 128)
tcp_grow_window(sk, skb);
@ -1976,7 +1979,7 @@ void tcp_enter_loss(struct sock *sk)
sysctl_tcp_reordering);
tcp_set_ca_state(sk, TCP_CA_Loss);
tp->high_seq = tp->snd_nxt;
TCP_ECN_queue_cwr(tp);
tcp_ecn_queue_cwr(tp);
/* F-RTO RFC5682 sec 3.1 step 1: retransmit SND.UNA if no previous
* loss recovery is underway except recurring timeout(s) on
@ -2368,7 +2371,7 @@ static void tcp_undo_cwnd_reduction(struct sock *sk, bool unmark_loss)
if (tp->prior_ssthresh > tp->snd_ssthresh) {
tp->snd_ssthresh = tp->prior_ssthresh;
TCP_ECN_withdraw_cwr(tp);
tcp_ecn_withdraw_cwr(tp);
}
} else {
tp->snd_cwnd = max(tp->snd_cwnd, tp->snd_ssthresh);
@ -2498,7 +2501,7 @@ static void tcp_init_cwnd_reduction(struct sock *sk)
tp->prr_delivered = 0;
tp->prr_out = 0;
tp->snd_ssthresh = inet_csk(sk)->icsk_ca_ops->ssthresh(sk);
TCP_ECN_queue_cwr(tp);
tcp_ecn_queue_cwr(tp);
}
static void tcp_cwnd_reduction(struct sock *sk, const int prior_unsacked,
@ -3453,7 +3456,7 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
flag |= tcp_sacktag_write_queue(sk, skb, prior_snd_una,
&sack_rtt_us);
if (TCP_ECN_rcv_ecn_echo(tp, tcp_hdr(skb))) {
if (tcp_ecn_rcv_ecn_echo(tp, tcp_hdr(skb))) {
flag |= FLAG_ECE;
ack_ev_flags |= CA_ACK_ECE;
}
@ -4193,7 +4196,7 @@ static void tcp_data_queue_ofo(struct sock *sk, struct sk_buff *skb)
struct sk_buff *skb1;
u32 seq, end_seq;
TCP_ECN_check_ce(tp, skb);
tcp_ecn_check_ce(tp, skb);
if (unlikely(tcp_try_rmem_schedule(sk, skb, skb->truesize))) {
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPOFODROP);
@ -4376,7 +4379,7 @@ static void tcp_data_queue(struct sock *sk, struct sk_buff *skb)
skb_dst_drop(skb);
__skb_pull(skb, tcp_hdr(skb)->doff * 4);
TCP_ECN_accept_cwr(tp, skb);
tcp_ecn_accept_cwr(tp, skb);
tp->rx_opt.dsack = 0;
@ -5457,7 +5460,7 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
* state to ESTABLISHED..."
*/
TCP_ECN_rcv_synack(tp, th);
tcp_ecn_rcv_synack(tp, th);
tcp_init_wl(tp, TCP_SKB_CB(skb)->seq);
tcp_ack(sk, skb, FLAG_SLOWPATH);
@ -5576,7 +5579,7 @@ discard:
tp->snd_wl1 = TCP_SKB_CB(skb)->seq;
tp->max_window = tp->snd_wnd;
TCP_ECN_rcv_syn(tp, th);
tcp_ecn_rcv_syn(tp, th);
tcp_mtup_init(sk);
tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);