caif: Add reference counting to service layer

Changes:
o Added functions cfsrvl_get and cfsrvl_put.
o Added support release_client to use by socket and net device.
o Increase reference counting for in-flight packets from cfmuxl

Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/net/caif/caif_dev.h b/include/net/caif/caif_dev.h
index 3aa1ff642323..318ab9478a44 100644
--- a/include/net/caif/caif_dev.h
+++ b/include/net/caif/caif_dev.h
@@ -70,6 +70,17 @@ int caif_connect_client(struct caif_connect_request *config,
 int caif_disconnect_client(struct cflayer *client_layer);
 
 /**
+ * caif_release_client - Release adaptation layer reference to client.
+ *
+ * @client_layer: Client layer.
+ *
+ * Releases a client/adaptation layer use of the caif stack.
+ * This function must be used after caif_disconnect_client to
+ * decrease the reference count of the service layer.
+ */
+void caif_release_client(struct cflayer *client_layer);
+
+/**
  * connect_req_to_link_param - Translate configuration parameters
  *                              from socket format to internal format.
  * @cnfg:       Pointer to configuration handler