Re: [PATCH] arm: make FORCE_MAX_ZONEORDER configurable for TI AM33XX

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On 25.09.2012 10:14, Russell King - ARM Linux wrote:
> On Tue, Sep 25, 2012 at 10:05:30AM +0200, Yegor Yefremov wrote:
>> How should I change the patch to make it proper? SA1111 is broken anyway:
> No it isn't.  This is what it produces _today_, and has done for the last
> 5-10 years without modification
>
> # CONFIG_CLEANCACHE is not set
> # CONFIG_FRONTSWAP is not set
> CONFIG_FORCE_MAX_ZONEORDER=9
> CONFIG_LEDS=y
> CONFIG_LEDS_CPU=y
>
>> config FORCE_MAX_ZONEORDER
>>         int "Maximum zone order" if ARCH_SHMOBILE
>>         range 11 64 if ARCH_SHMOBILE
>>         default "9" if SA1111
>>         default "11"
>>
>> AFAIK if ARCH_SHMOBILE defines dependency on ARCH_SHMOBILE,
> No it doens't.
>
> 	int "Maximum zone order" if ARCH_SHMOBILE
>
> is far from being the same as:
>
> 	int "Maximum zone order"
> 	depends on ARCH_SHMOBILE
>
> The former defines a condition upon which the option is offered in GUIs -
> or to put it another way, it defines the visibility of the option.
>
> The latter defines a dependency which must be met for the option to be
> both visible and appear in the resulting configuration file.
>
>> so SA1111 won't be evaluated (at least if I select SA1111
> And did you check that SA1111 remains selected?  I bet you didn't.  Or
> maybe you tested your patched version.  Whatever.  The original works,
> and has been known to work for years.  Your patch breaks it.  It's
> really as simple as that.

Thanks for explanation. I think I've got it now. Please review the v2 version.

Yegor

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