kernel-5.4: bump to 5.4.102 and refresh patches

5.4.102 backported a lot of stuff that our WireGuard backport already
did, in addition to other patches we had, so those patches were
removed from that part of the series. In the process other patches were
refreshed or reworked to account for upstream changes.

This commit involved `update_kernel.sh -v -u 5.4`.

Cc: John Audia <graysky@archlinux.us>
Cc: David Bauer <mail@david-bauer.net>
Cc: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/target/linux/generic/backport-5.4/080-wireguard-0095-wireguard-queueing-cleanup-ptr_ring-in-error-path-of.patch b/target/linux/generic/backport-5.4/080-wireguard-0095-wireguard-queueing-cleanup-ptr_ring-in-error-path-of.patch
new file mode 100644
index 0000000000..a72c509894
--- /dev/null
+++ b/target/linux/generic/backport-5.4/080-wireguard-0095-wireguard-queueing-cleanup-ptr_ring-in-error-path-of.patch
@@ -0,0 +1,35 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Jason A. Donenfeld" <Jason@zx2c4.com>
+Date: Wed, 29 Apr 2020 14:59:21 -0600
+Subject: [PATCH] wireguard: queueing: cleanup ptr_ring in error path of
+ packet_queue_init
+
+commit 130c58606171326c81841a49cc913cd354113dd9 upstream.
+
+Prior, if the alloc_percpu of packet_percpu_multicore_worker_alloc
+failed, the previously allocated ptr_ring wouldn't be freed. This commit
+adds the missing call to ptr_ring_cleanup in the error case.
+
+Reported-by: Sultan Alsawaf <sultan@kerneltoast.com>
+Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
+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/queueing.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/wireguard/queueing.c
++++ b/drivers/net/wireguard/queueing.c
+@@ -35,8 +35,10 @@ int wg_packet_queue_init(struct crypt_qu
+ 		if (multicore) {
+ 			queue->worker = wg_packet_percpu_multicore_worker_alloc(
+ 				function, queue);
+-			if (!queue->worker)
++			if (!queue->worker) {
++				ptr_ring_cleanup(&queue->ring, NULL);
+ 				return -ENOMEM;
++			}
+ 		} else {
+ 			INIT_WORK(&queue->work, function);
+ 		}