Driver core: allow to delay the uevent at device creation time

For the block subsystem, we want to delay all uevents until the
disk has been scanned and allpartitons are already created before
the first event is sent out.

Signed-off-by: Kay Sievers <kay.sievers@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 4 insertions, 2 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 34ac18778d8a..e13614241c9e 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -589,7 +589,8 @@ int device_add(struct device *dev)
                 goto PMError;
         if ((error = bus_add_device(dev)))
                 goto BusError;
-        kobject_uevent(&dev->kobj, KOBJ_ADD);
+        if (!dev->uevent_suppress)
+                kobject_uevent(&dev->kobj, KOBJ_ADD);
         if ((error = bus_attach_device(dev)))
                 goto AttachError;
         if (parent)
diff --git a/include/linux/device.h b/include/linux/device.h
index e1e164f81eea..5ca1cdba563a 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -399,9 +399,10 @@ struct device {
 
         /* class_device migration path */
         struct list_head        node;
-        struct class            *class;         /* optional*/
+        struct class            *class;
         dev_t                   devt;           /* dev_t, creates the sysfs "dev" */
         struct attribute_group  **groups;       /* optional groups */
+        int                     uevent_suppress;
 
         void    (*release)(struct device * dev);
 };