netdev - [PATCH net-next 1/2] net: Make extern and export get_net

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Date:   Tue, 13 Feb 2018 14:30:42 +0300
From:   Kirill Tkhai <ktkhai@...tuozzo.com>
To:     davem@...emloft.net, jasowang@...hat.com, edumazet@...gle.com,
        xiyou.wangcong@...il.com, willemb@...gle.com,
        peterpenkov96@...il.com, Linyu.Yuan@...atel-sbell.com.cn,
        kstewart@...uxfoundation.org, aviadye@...lanox.com,
        gregkh@...uxfoundation.org, ktkhai@...tuozzo.com,
        davejwatson@...com, netdev@...r.kernel.org
Subject: [PATCH net-next 1/2] net: Make extern and export get_net_ns()

This function will be used to obtain net of tun device.

Signed-off-by: Kirill Tkhai <ktkhai@...tuozzo.com>
---
 include/linux/socket.h |    2 ++
 net/socket.c           |    3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/linux/socket.h b/include/linux/socket.h
index 9286a5a8c60c..1ce1f768a58c 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -353,4 +353,6 @@ extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen
 			  unsigned int flags, struct timespec *timeout);
 extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg,
 			  unsigned int vlen, unsigned int flags);
+
+extern struct ns_common *get_net_ns(struct ns_common *ns);
 #endif /* _LINUX_SOCKET_H */
diff --git a/net/socket.c b/net/socket.c
index fac8246a8ae8..7d1ffa755821 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -991,10 +991,11 @@ static long sock_do_ioctl(struct net *net, struct socket *sock,
  *	what to do with it - that's up to the protocol still.
  */
 
-static struct ns_common *get_net_ns(struct ns_common *ns)
+struct ns_common *get_net_ns(struct ns_common *ns)
 {
 	return &get_net(container_of(ns, struct net, ns))->ns;
 }
+EXPORT_SYMBOL_GPL(get_net_ns);
 
 static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg)
 {