1 files changed, 0 insertions, 66 deletions
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0130-wireguard-use-synchronize_net-rather-than-synchroniz.patch b/target/linux/generic/backport-5.4/080-wireguard-0130-wireguard-use-synchronize_net-rather-than-synchroniz.patch
deleted file mode 100644
index 309fe36198..0000000000
--- a/target/linux/generic/backport-5.4/080-wireguard-0130-wireguard-use-synchronize_net-rather-than-synchroniz.patch
+++ /dev/null
@@ -1,66 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: "Jason A. Donenfeld" <Jason@zx2c4.com>
-Date: Fri, 4 Jun 2021 17:17:33 +0200
-Subject: [PATCH] wireguard: use synchronize_net rather than synchronize_rcu
-
-commit 24b70eeeb4f46c09487f8155239ebfb1f875774a upstream.
-
-Many of the synchronization points are sometimes called under the rtnl
-lock, which means we should use synchronize_net rather than
-synchronize_rcu. Under the hood, this expands to using the expedited
-flavor of function in the event that rtnl is held, in order to not stall
-other concurrent changes.
-
-This fixes some very, very long delays when removing multiple peers at
-once, which would cause some operations to take several minutes.
-
-Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
-Cc: stable@vger.kernel.org
-Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
-Signed-off-by: David S. Miller <davem@davemloft.net>
-Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
----
- drivers/net/wireguard/peer.c   | 6 +++---
- drivers/net/wireguard/socket.c | 2 +-
- 2 files changed, 4 insertions(+), 4 deletions(-)
-
---- a/drivers/net/wireguard/peer.c
-+++ b/drivers/net/wireguard/peer.c
-@@ -88,7 +88,7 @@ static void peer_make_dead(struct wg_pee
- 	/* Mark as dead, so that we don't allow jumping contexts after. */
- 	WRITE_ONCE(peer->is_dead, true);
- 
--	/* The caller must now synchronize_rcu() for this to take effect. */
-+	/* The caller must now synchronize_net() for this to take effect. */
- }
- 
- static void peer_remove_after_dead(struct wg_peer *peer)
-@@ -160,7 +160,7 @@ void wg_peer_remove(struct wg_peer *peer
- 	lockdep_assert_held(&peer->device->device_update_lock);
- 
- 	peer_make_dead(peer);
--	synchronize_rcu();
-+	synchronize_net();
- 	peer_remove_after_dead(peer);
- }
- 
-@@ -178,7 +178,7 @@ void wg_peer_remove_all(struct wg_device
- 		peer_make_dead(peer);
- 		list_add_tail(&peer->peer_list, &dead_peers);
- 	}
--	synchronize_rcu();
-+	synchronize_net();
- 	list_for_each_entry_safe(peer, temp, &dead_peers, peer_list)
- 		peer_remove_after_dead(peer);
- }
---- a/drivers/net/wireguard/socket.c
-+++ b/drivers/net/wireguard/socket.c
-@@ -430,7 +430,7 @@ void wg_socket_reinit(struct wg_device *
- 	if (new4)
- 		wg->incoming_port = ntohs(inet_sk(new4)->inet_sport);
- 	mutex_unlock(&wg->socket_update_lock);
--	synchronize_rcu();
-+	synchronize_net();
- 	sock_free(old4);
- 	sock_free(old6);
- }