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* Odd Kconfig output..
@ 2009-09-05 13:06 Valdis.Kletnieks
  2009-09-08 22:09 ` Paul E. McKenney
  0 siblings, 1 reply; 2+ messages in thread
From: Valdis.Kletnieks @ 2009-09-05 13:06 UTC (permalink / raw)
  To: Roman Zippel, Andrew Morton; +Cc: linux-kernel, linux-kbuild

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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'?



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^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: Odd Kconfig output..
  2009-09-05 13:06 Odd Kconfig output Valdis.Kletnieks
@ 2009-09-08 22:09 ` Paul E. McKenney
  0 siblings, 0 replies; 2+ messages in thread
From: Paul E. McKenney @ 2009-09-08 22:09 UTC (permalink / raw)
  To: Valdis.Kletnieks; +Cc: Roman Zippel, Andrew Morton, linux-kernel, linux-kbuild

On Sat, Sep 05, 2009 at 09:06:14AM -0400, Valdis.Kletnieks@vt.edu 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

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2009-09-05 13:06 Odd Kconfig output Valdis.Kletnieks
2009-09-08 22:09 ` Paul E. McKenney

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