tipc: make tipc broadcast link support net namespace

TIPC broadcast link is statically established and its relevant states
are maintained with the global variables: "bcbearer", "bclink" and
"bcl". Allowing different namespace to own different broadcast link
instances, these variables must be moved to tipc_net structure and
broadcast link instances would be allocated and initialized when
namespace is created.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Tested-by: Tero Aho <Tero.Aho@coriant.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 2fe9dcb418d4..9a0d6ed5c96c 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -40,6 +40,7 @@
 #include "bearer.h"
 #include "link.h"
 #include "discover.h"
+#include "bcast.h"
 
 #define MAX_ADDR_STR 60
 
@@ -482,8 +483,8 @@ void tipc_disable_l2_media(struct tipc_bearer *b)
  * @b_ptr: the bearer through which the packet is to be sent
  * @dest: peer destination address
  */
-int tipc_l2_send_msg(struct sk_buff *buf, struct tipc_bearer *b,
-                     struct tipc_media_addr *dest)
+int tipc_l2_send_msg(struct net *net, struct sk_buff *buf,
+                     struct tipc_bearer *b, struct tipc_media_addr *dest)
 {
         struct sk_buff *clone;
         struct net_device *dev;
@@ -528,7 +529,7 @@ void tipc_bearer_send(struct net *net, u32 bearer_id, struct sk_buff *buf,
         rcu_read_lock();
         b_ptr = rcu_dereference_rtnl(tn->bearer_list[bearer_id]);
         if (likely(b_ptr))
-                b_ptr->media->send_msg(buf, b_ptr, dest);
+                b_ptr->media->send_msg(net, buf, b_ptr, dest);
         rcu_read_unlock();
 }