dm: use is_power_of_2

[cascardo/linux.git] / Documentation / networking / rxrpc.txt

diff --git a/Documentation/networking/rxrpc.txt b/Documentation/networking/rxrpc.txt
index cae231b..c36b64b 100644 (file)
--- a/Documentation/networking/rxrpc.txt
+++ b/Documentation/networking/rxrpc.txt
@@ -857,3 +857,10 @@ The kernel interface functions are as follows:
 
      This is used to extract the error number from a message indicating either
      a local error occurred or a network error occurred.
+
+ (*) Allocate a null key for doing anonymous security.
+
+       struct key *rxrpc_get_null_key(const char *keyname);
+
+     This is used to allocate a null RxRPC key that can be used to indicate
+     anonymous security for a particular domain.