Damien George d6e051082a extmod/modbluetooth: Simplify how BLE IRQ callback is scheduled.
Instead of enqueue_irq() inspecting the ringbuf to decide whether to
schedule the IRQ callback (if ringbuf is empty), maintain a flag that knows
if the callback is on the schedule queue or not.  This saves about 150
bytes of code (for stm32 builds), and simplifies all uses of enqueue_irq()
and schedule_ringbuf().
2019-12-02 23:25:36 +11:00
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