From 246ea42a7b4e9840d023877a39bb3d559452ede8 Mon Sep 17 00:00:00 2001
From: Yajun Deng <yajun.deng@linux.dev>
Date: Sat, 18 Sep 2021 17:04:10 +0800
Subject: [PATCH] net: net_namespace: Fix undefined member in key_remove_domain()
Git-commit: aed0826b0cf2e488900ab92193893e803d65c070
Patch-mainline: v5.16-rc1
References: stable-5.14.19

[ Upstream commit aed0826b0cf2e488900ab92193893e803d65c070 ]

The key_domain member in struct net only exists if we define CONFIG_KEYS.
So we should add the define when we used key_domain.

Fixes: 9b242610514f ("keys: Network namespace domain tag")
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 net/core/net_namespace.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 9b5a767eddd5..073db7d0fa79 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -477,7 +477,9 @@ struct net *copy_net_ns(unsigned long flags,
 
 	if (rv < 0) {
 put_userns:
+#ifdef CONFIG_KEYS
 		key_remove_domain(net->key_domain);
+#endif
 		put_user_ns(user_ns);
 		net_drop_ns(net);
 dec_ucounts:
@@ -609,7 +611,9 @@ static void cleanup_net(struct work_struct *work)
 	list_for_each_entry_safe(net, tmp, &net_exit_list, exit_list) {
 		list_del_init(&net->exit_list);
 		dec_net_namespaces(net->ucounts);
+#ifdef CONFIG_KEYS
 		key_remove_domain(net->key_domain);
+#endif
 		put_user_ns(net->user_ns);
 		net_drop_ns(net);
 	}
-- 
2.26.2