diff options
| -rw-r--r-- | include/net/tcp.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index b1a05f8b35f0..78d13c88720f 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1326,7 +1326,9 @@ static inline unsigned long tcp_probe0_base(const struct sock *sk) static inline unsigned long tcp_probe0_when(const struct sock *sk, unsigned long max_when) { - u64 when = (u64)tcp_probe0_base(sk) << inet_csk(sk)->icsk_backoff; + u8 backoff = min_t(u8, ilog2(TCP_RTO_MAX / TCP_RTO_MIN) + 1, + inet_csk(sk)->icsk_backoff); + u64 when = (u64)tcp_probe0_base(sk) << backoff; return (unsigned long)min_t(u64, when, max_when); } |