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Driver core: implement uevent suppress in kobject

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This patch implements uevent suppress in kobject and removes it
from struct device, based on the following ideas:

1,Uevent sending should be one attribute of kobject, so suppressing it
in kobject layer is more natural than in device layer. By this way,
we can do it for other objects embedded with kobject.

2,It may save several bytes for each instance of struct device.(On my
omap3(32bit ARM) based box, can save 8bytes per device object)

This patch also introduces dev_set|get_uevent_suppress() helpers to
set and query uevent_suppress attribute in case to help kobject
as private part of struct device in future.

[This version is against the latest driver-core patch set of Greg,please
ignore the last version.]

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Ming Lei 2009-03-01 21:10:49 +08:00 • committed by Greg Kroah-Hartman
parent 4995f8ef9d
commit f67f129e51
11 changed files with 33 additions and 18 deletions
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2
drivers/acpi/dock.c
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@ -977,7 +977,7 @@ static int dock_add(acpi_handle handle)
sizeof(struct dock_station *));
/* we want the dock device to send uevents */
dock_device->dev.uevent_suppress = 0;
dev_set_uevent_suppress(&dock_device->dev, 0);
if (is_dock(handle))
dock_station->flags |= DOCK_IS_DOCK;