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tcp: Remove one extra ktime_get_ns() from cookie_init_timestamp

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tcp_make_synack() already uses tcp_clock_ns(), and can pass
the value to cookie_init_timestamp() to avoid another call
to ktime_get_ns() helper.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2019-11-07 11:51:18 -08:00
committed by David S. Miller
parent 2386d74845
commit 200ecef67b
3 changed files with 12 additions and 6 deletions
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4
net/ipv4/syncookies.c
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@@ -62,10 +62,10 @@ static u32 cookie_hash(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport,
* Since subsequent timestamps use the normal tcp_time_stamp value, we
* must make sure that the resulting initial timestamp is <= tcp_time_stamp.
*/
u64 cookie_init_timestamp(struct request_sock *req)
u64 cookie_init_timestamp(struct request_sock *req, u64 now)
{
struct inet_request_sock *ireq;
u32 ts, ts_now = tcp_time_stamp_raw();
u32 ts, ts_now = tcp_ns_to_ts(now);
u32 options = 0;
ireq = inet_rsk(req);