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From: mail@pawelmoll.com (Pawel Moll)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/3] [ARM] tegra: add PCI Express support
Date: Tue, 21 Sep 2010 14:23:35 +0100	[thread overview]
Message-ID: <cfbe99c95d8d0ed7b5e139afc44ddaac@cox.rootnode.net> (raw)
In-Reply-To: <201009211430.00325.arnd@arndb.de>

>>  #define __io(a)         __io(a)
>>  #define __mem_pci(a)    (a)
> 
> I wonder what the #else path is for. If you don't have PCI, who would
> call __io? And wouldn't that result in a NULL pointer dereference?

If I remember correctly the legacy IDE (ATA) code is scanning "well
known" IO port numbers...

Cheers!

PAwe?

  reply	other threads:[~2010-09-21 13:23 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-21 12:17 [PATCH v2 0/3] *** SUBJECT HERE *** Mike Rapoport
2010-09-21 12:17 ` [PATCH v2 1/3] [ARM] tegra: add PCI Express clocks Mike Rapoport
2010-09-21 12:17 ` [PATCH v2 2/3] [ARM] tegra: add PCI Express support Mike Rapoport
2010-09-21 12:30   ` Arnd Bergmann
2010-09-21 13:23     ` Pawel Moll [this message]
2010-09-21 13:33       ` Arnd Bergmann
2010-09-21 14:35     ` Mike Rapoport
2010-09-21 15:03       ` Arnd Bergmann
2010-09-21 12:17 ` [PATCH v2 3/3] [ARM] tegra: harmony: enable PCI Express Mike Rapoport
2010-09-23 15:22   ` Olof Johansson

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