tree b62a516d2f91d43a9f6d48492e2f6205160ac849
parent edbabd8679a39faef67def4438c9cbccb5c05c5d
author Tejun Heo <htejun@gmail.com> 1143968086 +0900
committer Jeff Garzik <jeff@garzik.org> 1143986577 -0400

[PATCH] libata: implement ata_down_xfermask_limit()

Implement ata_down_xfermask_limit().  This function manipulates
@dev->pio/mwdma/udma_mask such that the next lower transfer mode is
selected.  This will be used to improve ata_bus_probe() failure
handling and later by EH.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>