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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2012-12-23 00:02:13 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-01-03 13:09:40 +0100
commit11909ca1cf614f9396b17d366f9e3cfcba7b4a99 (patch)
tree64ac9e3885d22043acd7a29169104126d602ce31 /init/do_mounts_rd.c
parent0cd6ac52b333f66ee64e50ed216ec99231092dcd (diff)
ACPI: Add .setup() and .cleanup() callbacks to struct acpi_bus_type
Add two new callbacks,.setup() and .cleanup(), struct acpi_bus_type and modify acpi_platform_notify() to call .setup() after executing acpi_bind_one() successfully and acpi_platform_notify_remove() to call .cleanup() before running acpi_unbind_one(). This will allow the users of struct acpi_bus_type, PCI in particular, to specify operations to be executed right after the given device has been associated with a companion struct acpi_device and right before it's going to be detached from that companion, respectively. The main motivation is to be able to get rid of acpi_pci_bind() and acpi_pci_unbind(), which are horrible horrible stuff. [In short, there are three problems with them: The way they populate the .bind() and .unbind() callbacks of ACPI devices is rather less than straightforward, they require special hotplug-specific paths to be present in the ACPI namespace scanning code and by the time acpi_pci_unbind() is called the PCI device object in question may not exist any more.] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Toshi Kani <toshi.kani@hp.com>
Diffstat (limited to 'init/do_mounts_rd.c')
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