diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/080-wireguard-0089-wireguard-socket-remove-extra-call-to-synchronize_ne.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/080-wireguard-0089-wireguard-socket-remove-extra-call-to-synchronize_ne.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0089-wireguard-socket-remove-extra-call-to-synchronize_ne.patch b/target/linux/generic/backport-5.4/080-wireguard-0089-wireguard-socket-remove-extra-call-to-synchronize_ne.patch new file mode 100644 index 0000000000..458e9d51e5 --- /dev/null +++ b/target/linux/generic/backport-5.4/080-wireguard-0089-wireguard-socket-remove-extra-call-to-synchronize_ne.patch @@ -0,0 +1,32 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: "Jason A. Donenfeld" <Jason@zx2c4.com> +Date: Fri, 14 Feb 2020 23:57:23 +0100 +Subject: [PATCH] wireguard: socket: remove extra call to synchronize_net + +commit 1fbc33b0a7feb6ca72bf7dc8a05d81485ee8ee2e upstream. + +synchronize_net() is a wrapper around synchronize_rcu(), so there's no +point in having synchronize_net and synchronize_rcu back to back, +despite the documentation comment suggesting maybe it's somewhat useful, +"Wait for packets currently being received to be done." This commit +removes the extra call. + +Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> +Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> +Reviewed-by: Eric Dumazet <edumazet@google.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> +--- + drivers/net/wireguard/socket.c | 1 - + 1 file changed, 1 deletion(-) + +--- a/drivers/net/wireguard/socket.c ++++ b/drivers/net/wireguard/socket.c +@@ -432,7 +432,6 @@ void wg_socket_reinit(struct wg_device * + 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); + } |