From c1d993341e46867af9412cf7f93f535895bbe3a7 Mon Sep 17 00:00:00 2001
From: Feng Wu <feng.wu@intel.com>
Date: Tue, 9 Jun 2015 13:20:37 +0800
Subject: [PATCH] iommu, x86: Properly handle posted interrupts for IOMMU
 hotplug

Return error when inserting a new IOMMU which doesn't support posted
interrupts if posted interrupts are already enabled.

Signed-off-by: Feng Wu <feng.wu@intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Joerg Roedel <joro@8bytes.org>
Cc: jiang.liu@linux.intel.com
Cc: iommu@lists.linux-foundation.org
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/1433827237-3382-11-git-send-email-feng.wu@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
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