Re: Odd Kconfig output..

From: Paul E. McKenney
Date: Tue Sep 08 2009 - 18:09:50 EST


On Sat, Sep 05, 2009 at 09:06:14AM -0400, Valdis.Kletnieks@xxxxxx wrote:
> Saw this while doing a 'make oldconfig' moving from -mmotm0827 to -mmotm0903:
>
> RCU Implementation
> > 1. Tree-based hierarchical RCU (TREE_RCU)
> 2. Preemptable tree-based hierarchical RCU (TREE_PREEMPT_RCU) (NEW)
> choice[1-2]: ?
>
> There is no help available for this kernel option.
> Prompt: RCU Implementation
> Defined at init/Kconfig:329
> Location:
> -> General setup
> -> RCU Subsystem
> Selected by: m [=m]
>
> Where did that 'Selected by:' come from? Or is that just an artifact of
> the way Kconfig implements 'choice'?

Many of the architectures use a "select" clause for RCU, usually
selecting CLASSIC_RCU. Could that be the issue?

Thanx, Paul
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