[AF_RXRPC]: constify function pointer tables

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 58aaf89..1aaa2e8 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -565,9 +565,9 @@
 /*
  * ar-proc.c
  */
-extern const char *rxrpc_call_states[];
-extern struct file_operations rxrpc_call_seq_fops;
-extern struct file_operations rxrpc_connection_seq_fops;
+extern const char *const rxrpc_call_states[];
+extern const struct file_operations rxrpc_call_seq_fops;
+extern const struct file_operations rxrpc_connection_seq_fops;
 
 /*
  * ar-recvmsg.c