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From: Tejun Heo <htejun@gmail.com>
To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: jgarzik@pobox.com, gregkh@suse.de, alan@lxorguk.ukuu.org.uk,
	linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
	linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 6/13] devres: implement managed iomap interface
Date: Tue, 08 Apr 2008 23:48:43 +0900	[thread overview]
Message-ID: <47FB85CB.2070506@gmail.com> (raw)
In-Reply-To: <47FA4FD2.8060808@ru.mvista.com>

Sergei Shtylyov wrote:
>    A very late comment but nevertheless... :-)

Better late than never.

>    Those functions are going to break on 32-bit platforms with extended 
> physical address (well, that's starting with Pentiums which had 36-bit 
> PAE :-) AND devices mapped beyond 4 GB (e.g. PowerPC 44x).  You should 
> have used resource_size_t for the 'offset' parameter. As this most 
> probably means that libata is broken on such platforms, I'm going to 
> submit a patch...

Yeah, right please go ahead.  But I wonder whether any BIOS was actually 
crazy enough to map mmio region above 4G on 32bit machine.

-- 
tejun

  reply	other threads:[~2008-04-08 14:49 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-10  5:35 [PATCHSET] Managed device resources, take #2 Tejun Heo
2007-01-10  5:35 ` [PATCH 2/13] devres: implement managed IO region interface Tejun Heo
2007-01-10  5:35 ` [PATCH 1/13] devres: device resource management core Tejun Heo
2007-01-10  5:35 ` [PATCH 3/13] devres: implement managed IRQ interface Tejun Heo
2007-01-10  5:35 ` [PATCH 4/13] devres: implement managed DMA interface Tejun Heo
2007-01-10  5:35 ` [PATCH 8/13] libata: implement ata_host_detach() Tejun Heo
2007-01-10  5:35 ` [PATCH 5/13] devres: implement managed PCI interface Tejun Heo
2007-01-10  5:35 ` [PATCH 6/13] devres: implement managed iomap interface Tejun Heo
2008-04-07 16:46   ` Sergei Shtylyov
2008-04-08 14:48     ` Tejun Heo [this message]
2008-04-08 14:55       ` Sergei Shtylyov
2008-04-08 15:03         ` Tejun Heo
2008-04-10 16:56         ` Sergei Shtylyov
2008-04-10 17:44           ` Kumar Gala
2008-04-10 18:24             ` Sergei Shtylyov
2008-04-10 19:40               ` Kumar Gala
2008-04-11  2:08                 ` Tejun Heo
2007-01-10  5:35 ` [PATCH 7/13] devres: add Documentation/driver-model/devres.txt Tejun Heo
2007-01-10  5:35 ` [PATCH 9/13] libata: update libata core layer to use devres Tejun Heo
2007-01-10  5:35 ` [PATCH 12/13] devres: implement pcim_iomap_regions() Tejun Heo
2007-01-10  5:35 ` [PATCH 11/13] libata: remove unused functions Tejun Heo
2007-01-20  0:31 ` [PATCHSET] Managed device resources, take #2 Jeff Garzik

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