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Diffstat (limited to 'include/net/tcp.h')
-rw-r--r--include/net/tcp.h23
1 files changed, 0 insertions, 23 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 5740b85bc5a0..1b6f7d348cee 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1261,29 +1261,6 @@ static inline struct sk_buff *tcp_write_queue_prev(struct sock *sk, struct sk_bu
#define tcp_for_write_queue_from_safe(skb, tmp, sk) \
skb_queue_walk_from_safe(&(sk)->sk_write_queue, skb, tmp)
-/* This function calculates a "timeout" which is equivalent to the timeout of a
- * TCP connection after "boundary" unsuccessful, exponentially backed-off
- * retransmissions with an initial RTO of TCP_RTO_MIN.
- */
-static inline bool retransmits_timed_out(const struct sock *sk,
- unsigned int boundary)
-{
- unsigned int timeout, linear_backoff_thresh;
-
- if (!inet_csk(sk)->icsk_retransmits)
- return false;
-
- linear_backoff_thresh = ilog2(TCP_RTO_MAX/TCP_RTO_MIN);
-
- if (boundary <= linear_backoff_thresh)
- timeout = ((2 << boundary) - 1) * TCP_RTO_MIN;
- else
- timeout = ((2 << linear_backoff_thresh) - 1) * TCP_RTO_MIN +
- (boundary - linear_backoff_thresh) * TCP_RTO_MAX;
-
- return (tcp_time_stamp - tcp_sk(sk)->retrans_stamp) >= timeout;
-}
-
static inline struct sk_buff *tcp_send_head(struct sock *sk)
{
return sk->sk_send_head;