linux-kernel - Re: [PATCH] x86, clocksource, fix !CONFIG_CLOCKSOURCE

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Date:	Mon, 25 Feb 2013 09:21:06 -0500
From:	Prarit Bhargava <prarit@...hat.com>
To:	Prarit Bhargava <prarit@...hat.com>
CC:	linux-kernel@...r.kernel.org, John Stultz <john.stultz@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org
Subject: Re: [PATCH] x86, clocksource, fix !CONFIG_CLOCKSOURCE_WATCHDOG compile



On 02/24/2013 12:04 PM, Prarit Bhargava wrote:
> On 02/22/2013 03:14 PM, Thomas Gleixner wrote:
>>> +void clocksource_mark_unstable(struct clocksource *cs) { }
>>
>> Unless this is defined as
>>
>>> +static inline void clocksource_mark_unstable(struct clocksource *cs) { }
>>
>> Right?
> 
> Whups.  Of course ... new patch ...
> 
> -----8<----
> 
> If I explicitly disable the clocksource watchdog in the x86 Kconfig,
> the x86 kernel will not compile unless this is properly defined.
> 
> Signed-off-by: Prarit Bhargava <prarit@...hat.com>
> Cc: John Stultz <john.stultz@...aro.org>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: x86@...nel.org
> ---
>  kernel/time/clocksource.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
> index c958338..3d81a76 100644
> --- a/kernel/time/clocksource.c
> +++ b/kernel/time/clocksource.c
> @@ -450,6 +450,7 @@ static void clocksource_enqueue_watchdog(struct clocksource *cs)
>  static inline void clocksource_dequeue_watchdog(struct clocksource *cs) { }
>  static inline void clocksource_resume_watchdog(void) { }
>  static inline int clocksource_watchdog_kthread(void *data) { return 0; }
> +static inline void clocksource_mark_unstable(struct clocksource *cs) { }
>  
>  #endif /* CONFIG_CLOCKSOURCE_WATCHDOG */

Yuck.  Self NACK this one ... sorry Thomas.  I'm going to have to do more work
on this patch ...

P.

>  
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