linux-kernel - Re: [RFC part3 PATCH 1/2] clocksource / arch_timer: Use ACPI GTDT table to initialize arch timer

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Date:	Thu, 05 Dec 2013 21:52:34 +0800
From:	Hanjun Guo <hanjun.guo@...aro.org>
To:	Arnd Bergmann <arnd@...db.de>
CC:	linux-arm-kernel@...ts.infradead.org,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Mark Rutland <mark.rutland@....com>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	linaro-kernel@...ts.linaro.org, patches@...aro.org,
	Linus Walleij <linus.walleij@...aro.org>,
	Olof Johansson <olof@...om.net>, linux-kernel@...r.kernel.org,
	Rob Herring <rob.herring@...xeda.com>,
	linaro-acpi@...ts.linaro.org, linux-acpi@...r.kernel.org,
	Amit Daniel Kachhap <amit.daniel@...sung.com>,
	Jon Masters <jonathan@...masters.org>,
	Grant Likely <grant.likely@...aro.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [RFC part3 PATCH 1/2] clocksource / arch_timer: Use ACPI GTDT
 table to initialize arch timer

On 2013年12月05日 11:43, Arnd Bergmann wrote:
> On Tuesday 03 December 2013, Hanjun Guo wrote:
>
>> +#ifdef CONFIG_ACPI
>> +void __init arch_timer_acpi_init(void)
>> +{
> ...
>> +}
>> +#else
>> +void __init arch_timer_acpi_init(void) { return; };
>> +#endif
>>   
> The #else clause is broken in combination with
>
>> diff --git a/include/clocksource/arm_arch_timer.h b/include/clocksource/arm_arch_timer.h
>> index 6d26b40..2654edf 100644
>> --- a/include/clocksource/arm_arch_timer.h
>> +++ b/include/clocksource/arm_arch_timer.h
>> @@ -66,6 +66,11 @@ static inline struct timecounter *arch_timer_get_timecounter(void)
>>   	return NULL;
>>   }
>>   
>> +static inline void arch_timer_acpi_init(void)
>> +{
>> +	return;
>> +}
>> +
>>   #endif
>>   
> this inline function. Have you build-tested this with CONFIG_ACPI disabled?

Good catch! Thank you very much, will fix it in next version.

Thanks
hanjun
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