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authorJiang Liu <jiang.liu@huawei.com>2013-06-23 00:59:55 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-06-23 00:59:55 +0200
commit94add0f82469fa3c4ff978d03a34da90813c819d (patch)
tree467e9082ad2d979a216b3c0f4f0dbb15c7462b08 /drivers/pci
parentLinux 3.10-rc7 (diff)
downloadlinux-dev-94add0f82469fa3c4ff978d03a34da90813c819d.tar.xz
linux-dev-94add0f82469fa3c4ff978d03a34da90813c819d.zip
ACPI / dock: Initialize ACPI dock subsystem upfront
Commit 3b63aaa70e1 (PCI: acpiphp: Do not use ACPI PCI subdriver mechanism) introduced an ACPI dock support regression, because it changed the relative initialization order of the ACPI dock subsystem and the ACPI-based PCI hotplug (acpiphp). Namely, the ACPI dock subsystem has to be initialized before acpiphp_enumerate_slots() is first run, which after commit 3b63aaa70e1 happens during the initial enumeration of the PCI hierarchy triggered by the initial ACPI namespace scan in acpi_scan_init(). For this reason, the dock subsystem has to be initialized before the initial ACPI namespace scan in acpi_scan_init(). To make that happen, modify the ACPI dock subsystem to be non-modular and add the invocation of its initialization routine, acpi_dock_init(), to acpi_scan_init() directly before the initial namespace scan. [rjw: Changelog, removal of dock_exit().] References: https://bugzilla.kernel.org/show_bug.cgi?id=59501 Reported-and-tested-by: Alexander E. Patrakov <patrakov@gmail.com> Tested-by: Illya Klymov <xanf@xanf.me> Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: Yinghai Lu <yinghai@kernel.org> Cc: 3.9+ <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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