ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0087-wireguard-receive-reset-last_under_load-to-zero.patch b/target/linux/generic/backport-5.4/080-wireguard-0087-wireguard-receive-reset-last_under_load-to-zero.patch
new file mode 100644
index 0000000..193d28a
--- /dev/null
+++ b/target/linux/generic/backport-5.4/080-wireguard-0087-wireguard-receive-reset-last_under_load-to-zero.patch
@@ -0,0 +1,38 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Jason A. Donenfeld" <Jason@zx2c4.com>
+Date: Fri, 14 Feb 2020 23:57:21 +0100
+Subject: [PATCH] wireguard: receive: reset last_under_load to zero
+
+commit 2a8a4df36462aa85b0db87b7c5ea145ba67e34a8 upstream.
+
+This is a small optimization that prevents more expensive comparisons
+from happening when they are no longer necessary, by clearing the
+last_under_load variable whenever we wind up in a state where we were
+under load but we no longer are.
+
+Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
+Suggested-by: Matt Dunwoodie <ncon@noconroy.net>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
+---
+ drivers/net/wireguard/receive.c | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/wireguard/receive.c
++++ b/drivers/net/wireguard/receive.c
+@@ -118,10 +118,13 @@ static void wg_receive_handshake_packet(
+
+ under_load = skb_queue_len(&wg->incoming_handshakes) >=
+ MAX_QUEUED_INCOMING_HANDSHAKES / 8;
+- if (under_load)
++ if (under_load) {
+ last_under_load = ktime_get_coarse_boottime_ns();
+- else if (last_under_load)
++ } else if (last_under_load) {
+ under_load = !wg_birthdate_has_expired(last_under_load, 1);
++ if (!under_load)
++ last_under_load = 0;
++ }
+ mac_state = wg_cookie_validate_packet(&wg->cookie_checker, skb,
+ under_load);
+ if ((under_load && mac_state == VALID_MAC_WITH_COOKIE) ||