tree 04377f7c11e67c498fdb35418b0bda2116da7b26
parent 84f95243b5439a20c33837075b88926bfa00c4ec
author Adam Manzanares <adam.manzanares@hgst.com> 1476934819 -0700
committer Tejun Heo <tj@kernel.org> 1476972390 -0400

ata: set ncq_prio_enabled iff device has support

We previously had a check to see if the device has support for
prioritized ncq commands and a check to see if a device flag
is set, through a sysfs variable, in order to send a prioritized
command.

This patch only allows the sysfs variable to be set if the device
supports prioritized commands enabling one check in ata_build_rw_tf
in order to determine whether or not to send a prioritized command.

This patch depends on ata: ATA Command Priority Disabled By Default

tj: Minor subject and formatting updates.

Signed-off-by: Adam Manzanares <adam.manzanares@wdc.com>
Signed-off-by: Tejun Heo <tj@kernel.org>