From: Tejun Heo <htejun@gmail.com>
Date: Tue, 18 Dec 2007 07:33:04 +0000 (+0900)
Subject: libata: fix ata_acpi_gtm_xfermask()
X-Git-Tag: v2.6.25-rc1~1233^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5df91a25df08d85700fef5fd59bb1873273e5ef5;p=pandora-kernel.git

libata: fix ata_acpi_gtm_xfermask()

ata_acpi_gtm_xfermask() as separated out from pacpi_discover_modes()
has various bugs.  Fix them.

* The wrong comparison operator is used when finding for matching
  cycle resulting totally bogus result.

* With the comparion operator fixed, boundary condtion handling is
  clumsy.

* Setting of any DMA mask bit set all bits in PIO mask.

* MWDMA and UDMA blocks are swapped.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

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