Merge tag 'rxrpc-rewrite-20170210' of git://git.kernel.org/pub/scm/linux/kernel/git...

David Howells says:

====================
afs: Use system UUID generation

There is now a general function for generating a UUID and AFS should make
use of it.  It's also been recommended to me that I switch to using random
rather than time plus MAC address-based UUIDs which this function does.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>