From: Geliang Tang <tanggeliang@kylinos.cn>

The first parameter "skb" in mptcp_pm_nl_set_flags() is only used to
obtained the network namespace, which can also be obtained through the
second parameters "info" by using genl_info_net() helper. This patch
drops these useless parameters "skb" in all three set_flags() interfaces.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 net/mptcp/pm_netlink.c   | 12 ++++++------
 net/mptcp/pm_userspace.c |  2 +-
 net/mptcp/protocol.h     |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index f02378e9a9c8..0f2fe64fd568 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -2025,13 +2025,13 @@ static int mptcp_nl_set_flags(struct net *net,
 	return ret;
 }
 
-static int mptcp_pm_nl_set_flags(struct sk_buff *skb, struct genl_info *info)
+static int mptcp_pm_nl_set_flags(struct genl_info *info)
 {
 	struct mptcp_pm_addr_entry addr = { .addr = { .family = AF_UNSPEC }, };
 	struct nlattr *attr = info->attrs[MPTCP_PM_ATTR_ADDR];
 	u8 changed, mask = MPTCP_PM_ADDR_FLAG_BACKUP |
 			   MPTCP_PM_ADDR_FLAG_FULLMESH;
-	struct net *net = sock_net(skb->sk);
+	struct net *net = genl_info_net(info);
 	struct mptcp_pm_addr_entry *entry;
 	struct pm_nl_pernet *pernet;
 	u8 lookup_by_id = 0;
@@ -2079,16 +2079,16 @@ static int mptcp_pm_nl_set_flags(struct sk_buff *skb, struct genl_info *info)
 	return 0;
 }
 
-static int mptcp_pm_set_flags(struct sk_buff *skb, struct genl_info *info)
+static int mptcp_pm_set_flags(struct genl_info *info)
 {
 	if (info->attrs[MPTCP_PM_ATTR_TOKEN])
-		return mptcp_userspace_pm_set_flags(skb, info);
-	return mptcp_pm_nl_set_flags(skb, info);
+		return mptcp_userspace_pm_set_flags(info);
+	return mptcp_pm_nl_set_flags(info);
 }
 
 int mptcp_pm_nl_set_flags_doit(struct sk_buff *skb, struct genl_info *info)
 {
-	return mptcp_pm_set_flags(skb, info);
+	return mptcp_pm_set_flags(info);
 }
 
 static void mptcp_nl_mcast_send(struct net *net, struct sk_buff *nlskb, gfp_t gfp)
diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c
index 6711c1e1dac7..79531c949cc5 100644
--- a/net/mptcp/pm_userspace.c
+++ b/net/mptcp/pm_userspace.c
@@ -536,7 +536,7 @@ int mptcp_pm_nl_subflow_destroy_doit(struct sk_buff *skb, struct genl_info *info
 	return err;
 }
 
-int mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *info)
+int mptcp_userspace_pm_set_flags(struct genl_info *info)
 {
 	struct mptcp_pm_addr_entry loc = { .addr = { .family = AF_UNSPEC }, };
 	struct nlattr *attr_rem = info->attrs[MPTCP_PM_ATTR_ADDR_REMOTE];
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 238fb2ddb68a..41d01a046e27 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -1035,7 +1035,7 @@ mptcp_pm_del_add_timer(struct mptcp_sock *msk,
 struct mptcp_pm_add_entry *
 mptcp_lookup_anno_list_by_saddr(const struct mptcp_sock *msk,
 				const struct mptcp_addr_info *addr);
-int mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *info);
+int mptcp_userspace_pm_set_flags(struct genl_info *info);
 int mptcp_pm_announce_addr(struct mptcp_sock *msk,
 			   const struct mptcp_addr_info *addr,
 			   bool echo);
-- 
2.43.0