tree e413ff0798da2792683db0805128f43798dcfc8d
parent 7c77fa4d51b1480bcec2e898c94d6912fe063c16
author Tejun Heo <htejun@gmail.com> 1197963184 +0900
committer Jeff Garzik <jeff@garzik.org> 1201083852 -0500

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>