linux-kernel - Re: PREEMPT_ACTIVE too low error with all asm-generic headers for some arches

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Date:	Wed, 24 Jun 2009 18:21:06 -0400
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	Steven Rostedt <rostedt@...dmis.org>,
	Linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: PREEMPT_ACTIVE too low error with all asm-generic headers for 
	some arches

On Wed, Jun 24, 2009 at 11:02, Mike Frysinger wrote:
> On Wed, Jun 24, 2009 at 10:02, Arnd Bergmann wrote:
>> --- a/include/linux/hardirq.h
>> +++ b/include/linux/hardirq.h
>> @@ -62,6 +62,12 @@
>>  #define HARDIRQ_OFFSET (1UL << HARDIRQ_SHIFT)
>>  #define NMI_OFFSET     (1UL << NMI_SHIFT)
>>
>> +#ifndef PREEMPT_ACTIVE
>> +#define PREEMPT_ACTIVE_BITS    1
>> +#define PREEMPT_ACTIVE_SHIFT   (NMI_SHIFT + NMI_BITS)
>> +#define PREEMPT_ACTIVE (__IRQ_MASK(PREEMPT_ACTIVE_BITS) << PREEMPT_SHIFT)
>
> i think you meant "<< PREEMPT_ACTIVE_SHIFT" there.  once i make that
> change, it builds fine.

and like Ingo, with that fix, add my Acked-by

thanks !
-mike
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