From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/6] [ARM] Introduce common definition for __io()
Date: Wed, 23 Jun 2010 20:54:56 +0100 [thread overview]
Message-ID: <20100623195456.GC25070@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1277293938-25804-7-git-send-email-eric.y.miao@gmail.com>
On Wed, Jun 23, 2010 at 07:52:18PM +0800, Eric Miao wrote:
> Signed-off-by: Eric Miao <eric.miao@canonical.com>
> ---
> arch/arm/include/asm/io.h | 4 ++++
> arch/arm/mach-aaec2000/include/mach/io.h | 1 -
> arch/arm/mach-at91/include/mach/io.h | 1 -
> arch/arm/mach-bcmring/include/mach/io.h | 1 -
> arch/arm/mach-clps711x/include/mach/io.h | 1 -
> arch/arm/mach-cns3xxx/include/mach/io.h | 1 -
> arch/arm/mach-davinci/include/mach/io.h | 1 -
> arch/arm/mach-ep93xx/include/mach/io.h | 1 -
Again, ebsa110 is missing.
That's because __io() is a two-state definition. It means something
if a platform does _not_ define it. It also means something _if_ a
platform defines it.
You can't move it to asm/io.h because that precludes the first state
from ever occuring. It's not a simple case that those platforms can
provide some subsitute definition for __io() - they have to supply
their own inb() et.al. accessors because they need to do something
uniquely special there.
next prev parent reply other threads:[~2010-06-23 19:54 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-23 11:52 [PATCH 0/6] Cleanup of mach/io.h Eric Miao
2010-06-23 11:52 ` [PATCH 1/6] [ARM] Make common definition for IO_SPACE_LIMIT Eric Miao
2010-06-23 19:48 ` Russell King - ARM Linux
2010-06-23 11:52 ` [PATCH 2/6] [ARM] footbridge: remove the useless definition of __mem_pci() Eric Miao
2010-06-23 11:52 ` [PATCH 3/6] [ARM] Make __mem_pci() common to all ARM sub-architectures Eric Miao
2010-06-23 19:51 ` Russell King - ARM Linux
2010-06-23 11:52 ` [PATCH 4/6] [ARM] Remove useless __mem_isa() definitions Eric Miao
2010-06-23 11:52 ` [PATCH 5/6] [ARM] shmobile: change __io() definition to use __typesafe_io() Eric Miao
2010-06-23 11:59 ` Eric Miao
2010-06-23 11:52 ` [PATCH 6/6] [ARM] Introduce common definition for __io() Eric Miao
2010-06-23 19:54 ` Russell King - ARM Linux [this message]
2010-06-25 7:35 ` kprobe bug Bin Yang
2010-06-25 20:49 ` Nicolas Pitre
2010-06-28 2:27 ` Bin Yang
2010-06-28 15:08 ` Nicolas Pitre
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