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From: Randy Dunlap <randy.dunlap@oracle.com>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>, linux-kernel@vger.kernel.org
Subject: Re: Documentation/timers/hpet_example.c compile bug
Date: Sun, 30 May 2010 19:58:38 -0700	[thread overview]
Message-ID: <4C0325DE.6020604@oracle.com> (raw)
In-Reply-To: <20100530194907.67399986@infradead.org>

On 05/30/10 19:49, Arjan van de Ven wrote:
> On Sun, 30 May 2010 19:34:35 -0700
> Randy Dunlap <randy.dunlap@oracle.com> wrote:
>>
>> Does it even make sense to build hpet_example on s390?
>> I.e., does s390 have hpet?
>> If not, then a simple Kconfig "depends on X86" or "depends on !S390"
>> will fix this.
> 
> HPET is very PC specific.
> 
> but.. even on x86, it does not really make sense, and exposing this as
> an interface to userspace is a historical mistake, the use of which we
> really ought to discourage.

Do you mean exposing anything that is in /usr/include/linux/hpet.h via ioctls?
especially struct hpet_info ?

-- 
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***

  reply	other threads:[~2010-05-31  2:59 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-28 11:35 Documentation/timers/hpet_example.c compile bug Heiko Carstens
2010-05-29 18:41 ` Randy Dunlap
2010-05-31  2:34   ` Randy Dunlap
2010-05-31  2:49     ` Arjan van de Ven
2010-05-31  2:58       ` Randy Dunlap [this message]
2010-05-31  3:10         ` Arjan van de Ven
2010-06-01  2:30 ` [PATCH] Documentation/timers/hpet_example.c: only build on X64 Randy Dunlap
2010-06-01 15:55   ` Linus Torvalds
2010-06-01 16:55     ` [PATCH v2] Documentation/timers/hpet_example.c: only build on X86 Randy Dunlap

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