diff options
| -rw-r--r-- | include/net/tcp.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 39b731c900dd..993b7fcd4e46 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1489,13 +1489,15 @@ static inline int tcp_space_from_win(const struct sock *sk, int win) return __tcp_space_from_win(tcp_sk(sk)->scaling_ratio, win); } +/* Assume a conservative default of 1200 bytes of payload per 4K page. + * This may be adjusted later in tcp_measure_rcv_mss(). + */ +#define TCP_DEFAULT_SCALING_RATIO ((1200 << TCP_RMEM_TO_WIN_SCALE) / \ + SKB_TRUESIZE(4096)) + static inline void tcp_scaling_ratio_init(struct sock *sk) { - /* Assume a conservative default of 1200 bytes of payload per 4K page. - * This may be adjusted later in tcp_measure_rcv_mss(). - */ - tcp_sk(sk)->scaling_ratio = (1200 << TCP_RMEM_TO_WIN_SCALE) / - SKB_TRUESIZE(4096); + tcp_sk(sk)->scaling_ratio = TCP_DEFAULT_SCALING_RATIO; } /* Note: caller must be prepared to deal with negative returns */ |