From 374a91404314cef882b27b293dd34d89e2a3c0b6 Mon Sep 17 00:00:00 2001
From: Rajat Jain <rajatxjain@gmail.com>
Date: Mon, 31 Mar 2014 16:51:23 -0700
Subject: [PATCH] PCI: Allow hotplug service drivers to operate in polling mode

Today the PCIe port bus driver disables the Hot-plug service if the port
device does not have the capability to generate interrupts.  However, a
user must be able to use the "pciehp_poll_mode" parameter to use the pciehp
in polling method in such a case.  Today it is not possible.

This patch allows a hotplug service driver to decide whether or not it
would like to continue in the absence of interrupts.

Signed-off-by: Rajat Jain <rajatxjain@gmail.com>
Signed-off-by: Rajat Jain <rajatjain@juniper.net>
Signed-off-by: Guenter Roeck <groeck@juniper.net>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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