From: Tejun Heo <htejun@gmail.com>
Date: Tue, 9 Oct 2007 06:02:23 +0000 (+0900)
Subject: ahci: fix notification handling
X-Git-Tag: v2.6.24-rc1~1391^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f226c6bf78edab023ed1ea679531731d9df92a6;p=pandora-kernel.git

ahci: fix notification handling

Asynchronous notification on ICH9 didn't work because it didn't write
AN FIS into the RX area - it only updates SNotification.  Also,
snooping SDB_FIS RX area is racy against further SDB FIS receptions.
Let sata_async_notification() determine using SNTF if it's available
and snoop RX area iff SNTF isn't available

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

Reading git-diff-tree failed