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| author |   Gao Feng <fgao@ikuai8.com> | 2017-04-04 21:09:48 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-04-05 07:50:32 -0700 |
| commit | 589c49cbf9674808fd4ac9b7c17155abc0686f86 (patch) | |
| tree | 7065ecc4a28f72a6fd73570a0b793d92fee62e88 /include/net | |
| parent | net: ibm: emac: remove unused sysrq handler for 'c' key (diff) | |
| download | linux-dev-589c49cbf9674808fd4ac9b7c17155abc0686f86.tar.xz linux-dev-589c49cbf9674808fd4ac9b7c17155abc0686f86.zip | |
net: tcp: Define the TCP_MAX_WSCALE instead of literal number 14
Define one new macro TCP_MAX_WSCALE instead of literal number '14',
and use U16_MAX instead of 65535 as the max value of TCP window.
There is another minor change, use rounddown(space, mss) instead of
(space / mss) * mss;
Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/tcp.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 582e3772c0d9..cc6ae0a95201 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -78,6 +78,9 @@ void tcp_time_wait(struct sock *sk, int state, int timeo); /* Maximal number of ACKs sent quickly to accelerate slow-start. */ #define TCP_MAX_QUICKACKS 16U +/* Maximal number of window scale according to RFC1323 */ +#define TCP_MAX_WSCALE 14U + /* urg_data states */ #define TCP_URG_VALID 0x0100 #define TCP_URG_NOTYET 0x0200 |