linux-kernel - Re: [PATCH] ARM: OMAP4: remove dead kconfig option OMAP4_ERRATA

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Message-ID: <20150316233005.GA2598@atomide.com>
Date:	Mon, 16 Mar 2015 16:30:06 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Stefan Hengelein <stefan.hengelein@....de>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-omap@...r.kernel.org, linux@....linux.org.uk,
	santosh.shilimkar@...cle.com, gregkh@...uxfoundation.org
Subject: Re: [PATCH] ARM: OMAP4: remove dead kconfig option OMAP4_ERRATA_I688

* Stefan Hengelein <stefan.hengelein@....de> [150225 10:48]:
> The Kconfig-Option OMAP4_ERRATA_I688 is never visible due to a
> contradiction in it's dependencies.
> The option requires ARCH_MULTIPLATFORM to be 'disabled'. However, an
> enclosing menu requires either ARCH_MULTI_V6 or ARCH_MULTI_V7 to be
> enabled. These options inherit a dependency from an enclosing menu,
> that requires ARCH_MULTIPLATFORM to be 'enabled'.
> This is a contradiction and made this option also unavailable for
> non-multiplatform configurations.
> 
> Since there are no selects on OMAP4_ERRATA_I688, which would ignore
> dependencies, the code related to that option is dead and can be
> removed.
> 
> This (logical) defect has been found with the undertaker tool.
> (https://undertaker.cs.fau.de)
> 
> Signed-off-by: Stefan Hengelein <stefan.hengelein@....de>
> 
> ---
> Tony Lindgren suggested to remove the code since nobody complained for
> a few years and Santosh Shilimkar agreed.
> https://lkml.org/lkml/2015/2/25/449
> ---
> As far as I see, this should remove all the code related to
> OMAP4_ERRATA_I688, I hope I didn't remove too much.

Seems to boot fine, so applying into omap-for-v4.1/fixes-not-urgent.

Regards,

Tony
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