]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
ahci: drop intx manipulation on msi enable
authorTejun Heo <tj@kernel.org>
Fri, 23 Jan 2009 02:31:39 +0000 (11:31 +0900)
committerJeff Garzik <jgarzik@redhat.com>
Wed, 25 Mar 2009 02:02:40 +0000 (22:02 -0400)
commita5bfc4714b3f01365aef89a92673f2ceb1ccf246
treede2128b74217d3ce6a09af4ee532c561bb022412
parent6be976e79db3ba691b657476a8bf4a635e5586f9
ahci: drop intx manipulation on msi enable

There's no need to turn off intx explicitly on msi enable.  This is
automatically handled by pci.  Drop it.

This might be needed on machines if the BIOS turns intx off during
boot.  However, there's no evidence of such behavior for ahci and
the only such case seems to be ICH5 PATA according to ata_piix.
Also, given the way ahci operates, it's highly unlikely BIOS ever
disables IRQ for the controller.  However, as this change has slight
possibility of introducing failure, please schedule it for #upstream.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/ata/ahci.c