linux-kernel - Re: [PATCH]arch:Kconfig.locks Remove unused config option.

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Date:	Tue, 29 Mar 2011 13:53:02 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	"Justin P. Mattock" <justinmattock@...il.com>
Cc:	trivial@...nel.org, fweisbec@...il.com,
	linux-kernel@...r.kernel.org,
	Gerald Schaefer <gerald.schaefer@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>
Subject: Re: [PATCH]arch:Kconfig.locks Remove unused config option.

On Tue, Mar 29, 2011 at 09:36:51AM -0700, Justin P. Mattock wrote:
> using a cleanup script I found this, could be real/fake not sure
> I grepped the whole kernel and only found this. If/when you have
> time let me know..

This was added by: 36cd3c9f925b9307236505ae7ad1ad7ac4d4357c
mutex: have non-spinning mutexes on s390 by default

and removed by: fa188ae1657d6edc7963d524ce9a0650fe725242
[S390] mutex: enable spinning mutex on s390

So I think you are safe in removing it.

Thanks!

> 
> Signed-off-by: Justin P. Mattock <justinmattock@...il.com>

Acked-by: Steven Rostedt <rostedt@...dmis.org>

-- Steve

> 
> ---
>  arch/Kconfig         |    3 ---
>  kernel/Kconfig.locks |    2 +-
>  2 files changed, 1 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/Kconfig b/arch/Kconfig
> index f78c2be..8d24bac 100644
> --- a/arch/Kconfig
> +++ b/arch/Kconfig
> @@ -144,9 +144,6 @@ config HAVE_CLK
>  config HAVE_DMA_API_DEBUG
>  	bool
>  
> -config HAVE_DEFAULT_NO_SPIN_MUTEXES
> -	bool
> -
>  config HAVE_HW_BREAKPOINT
>  	bool
>  	depends on PERF_EVENTS
> diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
> index 88c92fb..5e62baf 100644
> --- a/kernel/Kconfig.locks
> +++ b/kernel/Kconfig.locks
> @@ -199,4 +199,4 @@ config INLINE_WRITE_UNLOCK_IRQRESTORE
>  	def_bool !DEBUG_SPINLOCK && ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
>  
>  config MUTEX_SPIN_ON_OWNER
> -	def_bool SMP && !DEBUG_MUTEXES && !HAVE_DEFAULT_NO_SPIN_MUTEXES
> +	def_bool SMP && !DEBUG_MUTEXES 
> -- 
> 1.7.4.1
> 
> --
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