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

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Message-Id: <200905011520.34097.arnd@arndb.de>
Date:	Fri, 1 May 2009 15:20:33 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
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

On Friday 01 May 2009, Alan Cox wrote:
> Currently if you create a new architecture you have to figure out what
> your equivalent tick rate is or you get an error for not defining it.
> Ditto if you try to build code using it on platforms that it is
> meaningless (eg S/390) you get an error.
> 
> You'd lose that rather useful property.

In that case, I still think it would be good to have it in asm-generic.
Half the architectures define it in this way currently, and new architectures
would still have to think about it before falling back on the default.

	Arnd <><
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