tipc: eliminate upcall function pointers between port and socket

Due to the original one-to-many relation between port and user API
layers, upcalls to the API have been performed via function pointers,
installed in struct tipc_port at creation. Since this relation now
always is one-to-one, we can instead use ordinary function calls.

We remove the function pointers 'dispatcher' and ´wakeup' from
struct tipc_port, and replace them with calls to the renamed
functions tipc_sk_rcv() and tipc_sk_wakeup().

At the same time we change the name and signature of the functions
tipc_createport() and tipc_deleteport() to reflect their new role
as mere initialization/destruction functions.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/net/tipc/socket.h b/net/tipc/socket.h
index f1cd54a..a02d0bb 100644
--- a/net/tipc/socket.h
+++ b/net/tipc/socket.h
@@ -67,4 +67,11 @@ static inline struct sock *tipc_port_to_sk(const struct tipc_port *port)
 	return &(container_of(port, struct tipc_sock, port))->sk;
 }
 
+static inline void tipc_sk_wakeup(struct sock *sk)
+{
+	sk->sk_write_space(sk);
+}
+
+u32 tipc_sk_rcv(struct sock *sk, struct sk_buff *buf);
+
 #endif