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c0cb86e1d5
Rather than using the clunky, old, slower wireguard-linux-compat out of tree module, this commit does a patch-by-patch backport of upstream's wireguard to 5.4. This specific backport is in widespread use, being part of SUSE's enterprise kernel, Oracle's enterprise kernel, Google's Android kernel, Gentoo's distro kernel, and probably more I've forgotten about. It's definately the "more proper" way of adding wireguard to a kernel than the ugly compat.h hell of the wireguard-linux-compat repo. And most importantly for OpenWRT, it allows using the same module configuration code for 5.10 as for 5.4, with no need for bifurcation. These patches are from the backport tree which is maintained in the open here: https://git.zx2c4.com/wireguard-linux/log/?h=backport-5.4.y I'll be sending PRs to update this as needed. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> (cherry picked from commit3888fa7880) (cherry picked from commitd540725871) (cherry picked from commit196f3d586f) (cherry picked from commit3500fd7938) (cherry picked from commit23b801d3ba) (cherry picked from commit0c0cb97da7) (cherry picked from commit2a27f6f90a) Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
39 lines
1.4 KiB
Diff
39 lines
1.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
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Date: Fri, 14 Feb 2020 23:57:21 +0100
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Subject: [PATCH] wireguard: receive: reset last_under_load to zero
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commit 2a8a4df36462aa85b0db87b7c5ea145ba67e34a8 upstream.
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This is a small optimization that prevents more expensive comparisons
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from happening when they are no longer necessary, by clearing the
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last_under_load variable whenever we wind up in a state where we were
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under load but we no longer are.
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Suggested-by: Matt Dunwoodie <ncon@noconroy.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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---
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drivers/net/wireguard/receive.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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--- a/drivers/net/wireguard/receive.c
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+++ b/drivers/net/wireguard/receive.c
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@@ -118,10 +118,13 @@ static void wg_receive_handshake_packet(
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under_load = skb_queue_len(&wg->incoming_handshakes) >=
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MAX_QUEUED_INCOMING_HANDSHAKES / 8;
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- if (under_load)
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+ if (under_load) {
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last_under_load = ktime_get_coarse_boottime_ns();
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- else if (last_under_load)
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+ } else if (last_under_load) {
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under_load = !wg_birthdate_has_expired(last_under_load, 1);
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+ if (!under_load)
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+ last_under_load = 0;
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+ }
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mac_state = wg_cookie_validate_packet(&wg->cookie_checker, skb,
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under_load);
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if ((under_load && mac_state == VALID_MAC_WITH_COOKIE) ||
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