From 03d6c3b0fa4f5f0379cede079ec828a6c999fe43 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed, 3 Dec 2014 10:39:07 +0200
Subject: [PATCH] iwlwifi: pcie: re-ACK all interrupts after device reset

When we reset the device, the CSR_INT gets cleared as well
as CSR_INT_MASK. Meaning that we shouldn't get any interrupt
but, due to a hardware bug, recent devices will keep sending
interrupts. This leads to an interrupt storm while stopping
the device.
The way to fix this is to ACK all the interrupts after the
device is reset so that the value of CSR_INT will stay
0xffffffff.

Fixes: 522713c81e4e ("iwlwifi: pcie: properly reset the device")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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