From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Sat, 13 Jul 2013 21:27:24 +0000 (+0200)
Subject: ACPI / hotplug / PCI: Unified notify handler for hotplug events
X-Git-Tag: v3.12-rc1~178^2~16^2~28
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87831273438d66167dddc6d73e42d49671cb56bb;p=pandora-kernel.git

ACPI / hotplug / PCI: Unified notify handler for hotplug events

Using the hotplug context objects introduced previously rework the
ACPI-based PCI hotplug (ACPIPHP) core code so that all notifications
for ACPI device objects corresponding to the hotplug PCI devices are
handled by one function, handle_hotplug_event(), which recognizes
whether it has to handle a bridge or a function.

In addition to code size reduction it allows some ugly pieces of code
where notify handlers have to be uninstalled and installed again to
go away.  Moreover, it fixes a theoretically possible race between
handle_hotplug_event() and free_bridge() tearing down data structures
for the same handle.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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