diff options
| author | Vijay Subramanian <subramanian.vijay@gmail.com> | 2011-12-20 13:23:24 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-21 01:03:23 -0500 |
| commit | ab56222a32b9dbaae19c1d37f07b0ac4fc3c27ec (patch) | |
| tree | ce5eff7879a1d80c419835171de13e52c24afdfb /include | |
| parent | 08f4fc9da9a04d59f5c937e06e375158abb68206 (diff) | |
| download | linux-stable-ab56222a32b9dbaae19c1d37f07b0ac4fc3c27ec.tar.gz linux-stable-ab56222a32b9dbaae19c1d37f07b0ac4fc3c27ec.tar.bz2 linux-stable-ab56222a32b9dbaae19c1d37f07b0ac4fc3c27ec.zip | |
tcp: Replace constants with #define macros
to record the state of SACK/FACK and DSACK for better readability and maintenance.
Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/tcp.h | 5 | ||||
| -rw-r--r-- | include/net/tcp.h | 4 |
2 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 7f59ee946983..46a85c9e1f25 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -238,6 +238,11 @@ struct tcp_sack_block { u32 end_seq; }; +/*These are used to set the sack_ok field in struct tcp_options_received */ +#define TCP_SACK_SEEN (1 << 0) /*1 = peer is SACK capable, */ +#define TCP_FACK_ENABLED (1 << 1) /*1 = FACK is enabled locally*/ +#define TCP_DSACK_SEEN (1 << 2) /*1 = DSACK was received from peer*/ + struct tcp_options_received { /* PAWS/RTTM data */ long ts_recent_stamp;/* Time we stored ts_recent (for aging) */ diff --git a/include/net/tcp.h b/include/net/tcp.h index a4f52e154843..0118ea999f67 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -773,12 +773,12 @@ static inline int tcp_is_reno(const struct tcp_sock *tp) static inline int tcp_is_fack(const struct tcp_sock *tp) { - return tp->rx_opt.sack_ok & 2; + return tp->rx_opt.sack_ok & TCP_FACK_ENABLED; } static inline void tcp_enable_fack(struct tcp_sock *tp) { - tp->rx_opt.sack_ok |= 2; + tp->rx_opt.sack_ok |= TCP_FACK_ENABLED; } static inline unsigned int tcp_left_out(const struct tcp_sock *tp) |