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From: Jeff Garzik <jgarzik@pobox.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Add sparse "__iomem" infrastructure to check PCI address usage
Date: Sun, 12 Sep 2004 20:26:38 -0400	[thread overview]
Message-ID: <4144E93E.5030404@pobox.com> (raw)
In-Reply-To: <200409110726.i8B7QTGn009468@hera.kernel.org>

Linux Kernel Mailing List wrote:
> --- a/include/linux/compiler.h	2004-09-11 00:26:40 -07:00
> +++ b/include/linux/compiler.h	2004-09-11 00:26:40 -07:00
> @@ -6,13 +6,17 @@
>  # define __kernel	/* default address space */
>  # define __safe		__attribute__((safe))
>  # define __force	__attribute__((force))
> +# define __iomem	__attribute__((noderef, address_space(2)))

Dumb gcc attribute questions:

1) what does force do? it doesn't appear to be in gcc 3.3.3 docs.

2) is "volatile ... __force" redundant?

3) can we use 'malloc' attribute on kmalloc?


       reply	other threads:[~2004-09-13  0:26 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200409110726.i8B7QTGn009468@hera.kernel.org>
2004-09-13  0:26 ` Jeff Garzik [this message]
2004-09-13  0:50   ` Add sparse "__iomem" infrastructure to check PCI address usage David S. Miller
2004-09-13  2:31   ` Linus Torvalds
2004-09-13  2:41     ` Jeff Garzik
2004-09-13  3:00       ` Linus Torvalds
2004-09-13 14:22         ` Geert Uytterhoeven
2004-09-13 14:33           ` Linus Torvalds
2004-09-13 18:31         ` Tonnerre
2004-09-13 18:48           ` Linus Torvalds
2004-09-13 18:51           ` viro

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