diff options
Diffstat (limited to 'net/tipc/node.c')
| -rw-r--r-- | net/tipc/node.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/net/tipc/node.c b/net/tipc/node.c index c29915688230..29cc85319327 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -1,7 +1,7 @@ /* * net/tipc/node.c: TIPC node management routines * - * Copyright (c) 2000-2006, 2012-2015, Ericsson AB + * Copyright (c) 2000-2006, 2012-2016, Ericsson AB * Copyright (c) 2005-2006, 2010-2014, Wind River Systems * All rights reserved. * @@ -191,6 +191,20 @@ int tipc_node_get_mtu(struct net *net, u32 addr, u32 sel) tipc_node_put(n); return mtu; } + +u16 tipc_node_get_capabilities(struct net *net, u32 addr) +{ + struct tipc_node *n; + u16 caps; + + n = tipc_node_find(net, addr); + if (unlikely(!n)) + return TIPC_NODE_CAPABILITIES; + caps = n->capabilities; + tipc_node_put(n); + return caps; +} + /* * A trivial power-of-two bitmask technique is used for speed, since this * operation is done for every incoming TIPC packet. The number of hash table @@ -304,8 +318,11 @@ struct tipc_node *tipc_node_create(struct net *net, u32 addr, u16 capabilities) spin_lock_bh(&tn->node_list_lock); n = tipc_node_find(net, addr); - if (n) + if (n) { + /* Same node may come back with new capabilities */ + n->capabilities = capabilities; goto exit; + } n = kzalloc(sizeof(*n), GFP_ATOMIC); if (!n) { pr_warn("Node creation failed, no memory\n"); |