[PATCH 0/5] random: Add PREEMPT_RT support.

[Sebastian Andrzej Siewior]

The entropy_store::lock can not be acquired with disabled interrupts on
PREEMPT_RT because it is a sleeping lock. The lock is acquired from
hard-irq context while the primary interrupt handler is invoked.
The series restructures the code a little so the lock is only acquired
in process context on PREEMPT_RT while it remains as-is for non-RT.

The first two patches remove unused arguments from functions. The
following two reshuffle the code a little while the last one addresses
the PREEMPT_RT related issue.

Sebastian