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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-09-21 02:58:18 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-09-21 02:58:18 +0200
commit8ab17fc92e49bc2b8fff9d220c19bf50ec9c1158 (patch)
tree88ec833453a653ba4f5edee1aa8ec874615d8485 /drivers/acpi/container.c
parent9e82bf014195d6f0054982c463575cdce24292be (diff)
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ACPI / hotplug: Generate online uevents for ACPI containers
Commit 46394fd01 (ACPI / hotplug: Move container-specific code out of the core) removed the generation of "online" uevents for containers, because "add" uevents are now generated for them automatically when container system devices are registered. However, there are user space tools that need to be notified when the container and all of its children have been enumerated, which doesn't happen any more. For this reason, add a mechanism allowing "online" uevents to be generated for ACPI containers after enumerating the container along with all of its children. Fixes: 46394fd01 (ACPI / hotplug: Move container-specific code out of the core) Reported-and-tested-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: 3.14+ <stable@vger.kernel.org> # 3.14+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/container.c')
-rw-r--r--drivers/acpi/container.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 76f7cff64594..c8ead9f97375 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -99,6 +99,13 @@ static void container_device_detach(struct acpi_device *adev)
device_unregister(dev);
}
+static void container_device_online(struct acpi_device *adev)
+{
+ struct device *dev = acpi_driver_data(adev);
+
+ kobject_uevent(&dev->kobj, KOBJ_ONLINE);
+}
+
static struct acpi_scan_handler container_handler = {
.ids = container_device_ids,
.attach = container_device_attach,
@@ -106,6 +113,7 @@ static struct acpi_scan_handler container_handler = {
.hotplug = {
.enabled = true,
.demand_offline = true,
+ .notify_online = container_device_online,
},
};