linux-kernel - Re: [PATCH 04/27] asm-generic: add legacy I/O header files

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Date:	Fri, 1 May 2009 15:03:19 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Russell King <rmk+lkml@....linux.org.uk>,
	Michal Simek <monstr@...str.eu>, linux-arch@...r.kernel.org,
	Remis Lima Baima <remis.developer@...glemail.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 04/27] asm-generic: add legacy I/O header files

> I just noticed that linux/jiffies.h does not compile without a definition
> of CLOCK_TICK_RATE, so that's probably why every architecture defines it.

It should do so just fine what errors are you seeing ?

CLOCK_TICK_RATE produces ACTHZ and LATCH

ACTHZ is specific to the jiffies timer (and requires CLOCK_TICK_RATE
represents the input frequency that is divided to generate the target HZ
value for the system), LATCH is used in a couple of ugly bits of x86 code
and can probably now go away.

So we now have at least two conflicting meanings for CLOCK_TICK_RATE
which again says it needs fixing not wallpapering over.

Alan
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