From d3d6c329330bd0f2821b0ba83a27693e99265866 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 27 Oct 2014 10:22:56 -0400
Subject: [PATCH] ahci: disable MSI instead of NCQ on Samsung pci-e SSDs on
 macbooks

commit 66a7cbc303f4d28f201529b06061944d51ab530c upstream.

Samsung pci-e SSDs on macbooks failed miserably on NCQ commands, so
67809f85d31e ("ahci: disable NCQ on Samsung pci-e SSDs on macbooks")
disabled NCQ on them.  It turns out that NCQ is fine as long as MSI is
not used, so let's turn off MSI and leave NCQ on.

Signed-off-by: Tejun Heo <tj@kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=60731
Tested-by: <dorin@i51.org>
Tested-by: Imre Kaloz <kaloz@openwrt.org>
Fixes: 67809f85d31e ("ahci: disable NCQ on Samsung pci-e SSDs on macbooks")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
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