Re: [PATCH v6 1/5] random: Blocking API for accessing nonblocking_pool

Am Montag, 18. Mai 2015, 17:21:31 schrieb Herbert Xu:

Hi Herbert,

quoted

+/*
+ * Equivalent function to get_random_bytes with the difference that this
+ * function blocks the request until the nonblocking_pool is initialized.
+ */
+int get_blocking_random_bytes_cb(void *buf, int nbytes, void *private,
+				 void (*cb)(void *buf, int buflen,
+					    void *private))

You can simplify this further and get rid of buf/nbytes.  All
we need to know is whether the pool is ready.  Everything else
can come from private.

So, the async function is now just a notification of the caller. Sounds good 
with me.

quoted

+	struct random_work *rw = NULL;
+	int ret = 0;

I think this function should return 0 if the pool is ready now,
-EINPROGRESS if it's not (indicating that the callback will be
called when it is ready) and otherwise an error.

Ok, will come in the next patch.

Ciao
Stephan