device property: Get rid of struct fwnode_handle type field
authorSakari Ailus <sakari.ailus@linux.intel.com>
Fri, 21 Jul 2017 11:39:31 +0000 (14:39 +0300)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Fri, 21 Jul 2017 22:04:50 +0000 (00:04 +0200)
commitdb3e50f3234ba1a477413f56a9e5800a73dca786
tree87c3c735dd51f68e77d3189186094ee216204a76
parentb81b729164445cd94c4dd6fc4d6f10487434df4a
device property: Get rid of struct fwnode_handle type field

Instead of relying on the struct fwnode_handle type field, define
fwnode_operations structs for all separate types of fwnodes. To find out
the type, compare to the ops field to relevant ops structs.

This change has two benefits:

1. it avoids adding the type field to each and every instance of struct
fwnode_handle, thus saving memory and

2. makes the ops field the single factor that defines both the types of
the fwnode as well as defines the implementation of its operations,
decreasing the possibility of bugs when developing code dealing with
fwnode internals.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/property.c
drivers/acpi/scan.c
drivers/base/property.c
drivers/of/property.c
include/acpi/acpi_bus.h
include/linux/acpi.h
include/linux/fwnode.h
include/linux/irqdomain.h
include/linux/of.h
kernel/irq/irqdomain.c