linux-kernel - Re: [PATCH] Make asm-generic/ioctl.h more generic using conditionals.

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Date:	Fri, 13 Jul 2007 10:56:20 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	"Robert P. J. Day" <rpjday@...dspring.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>
Subject: Re: [PATCH] Make asm-generic/ioctl.h more generic using conditionals.

On Tue, Jul 10, 2007 at 06:33:26AM -0400, Robert P. J. Day wrote:
> + * Let any architecture override either of the following before
> + * including this file.
> + */
> +
> +#ifndef _IOC_SIZEBITS
> +# define _IOC_SIZEBITS	14
> +#endif
> +
> +#ifndef _IOC_DIRBITS
> +# define _IOC_DIRBITS	2
> +#endif

I don't think this is usefull.  It just makes it less obvious to find
this definition which must not change ever due to abi reasons anyway.

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