[AF_RXRPC/AFS]: Arch-specific fixes.

Fixes for various arch compilation problems:

 (*) Missing module exports.

 (*) Variable name collision when rxkad and af_rxrpc both built in
     (rxrpc_debug).

 (*) Large constant representation problem (AFS_UUID_TO_UNIX_TIME).

 (*) Configuration dependencies.

 (*) printk() format warnings.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index e7b0473..222c1a3 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -772,7 +772,7 @@
 
 	if (call->offset < count) {
 		if (last) {
-			_leave(" = -EBADMSG [%d < %lu]", call->offset, count);
+			_leave(" = -EBADMSG [%d < %zu]", call->offset, count);
 			return -EBADMSG;
 		}
 		_leave(" = -EAGAIN");