alistair23-linux/drivers/base
Daniel Wagner 0430cafcc4 firmware: drop bit ops in favor of simple state machine
We track the state of the firmware loading with bit ops.  Since the
state machine has only a few states and they are all mutual exclusive
there are only a few simple state transition we can model this simplify.

	   UNKNOWN -> LOADING -> DONE | ABORTED

Because we don't use any bit ops on fw_state::status anymore we are able
to change the data type to enum fw_status and update the function
arguments accordingly.

READ_ONCE() and WRITE_ONCE() are propably not needed because there are a
lot of load and stores around fw_st->status. But let's make it explicit
and not be sorry later.

Cc: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-29 21:28:54 +01:00
..
power PM / runtime: Optimize the use of device links 2016-10-31 11:42:51 -06:00
regmap Merge remote-tracking branches 'regmap/topic/core' and 'regmap/topic/debugfs' into regmap-next 2016-10-04 05:17:12 +02:00
test driver-core: fix platform_no_drv_owner.cocci warnings 2016-11-29 20:58:31 +01:00
attribute_container.c attribute_container: Fix typo 2016-08-31 15:13:56 +02:00
base.h driver core: Add deferred_probe attribute to devices in sysfs 2016-11-10 17:22:23 +01:00
bus.c driver core: bus: use to_subsys_private and to_device_private_bus 2016-02-09 17:25:27 -08:00
cacheinfo.c drivers: base: cacheinfo: support DT overrides for cache properties 2016-11-10 17:30:53 +01:00
class.c driver core: class: add class_groups support 2016-11-29 21:12:12 +01:00
component.c Merge 4.5-rc4 into driver-core-next 2016-02-14 14:29:55 -08:00
container.c ACPI / hotplug / driver core: Handle containers in a special way 2013-12-29 15:25:48 +01:00
core.c driver core: Add deferred_probe attribute to devices in sysfs 2016-11-10 17:22:23 +01:00
cpu.c cpu: clean up register_cpu func 2016-08-31 15:19:55 +02:00
dd.c driver core: Add deferred_probe attribute to devices in sysfs 2016-11-10 17:22:23 +01:00
devcoredump.c driver core: devcoredump: convert to use class_groups 2016-11-29 21:12:12 +01:00
devres.c devm: make allocations numa aware by default 2015-10-09 17:00:33 -04:00
devtmpfs.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
dma-coherent.c drivers: dma-coherent: Move spinlock in dma_alloc_from_coherent() 2016-09-28 17:53:16 +02:00
dma-contiguous.c driver core update for 4.4-rc1 2015-11-04 21:50:37 -08:00
dma-mapping.c drivers/base dmam_declare_coherent_memory leaks 2016-08-31 15:19:55 +02:00
driver.c driver core: add missing blank line after declaration 2015-03-25 14:36:30 +01:00
firmware.c
firmware_class.c firmware: drop bit ops in favor of simple state machine 2016-11-29 21:28:54 +01:00
hypervisor.c drivers/base: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required. 2011-10-31 19:31:38 -04:00
init.c drivers: of/base: move of_init to driver_init 2015-05-26 19:55:56 -07:00
isa.c isa: Call isa_bus_init before dependent ISA bus drivers register 2016-06-17 20:47:11 -07:00
Kconfig driver-core: add test module for asynchronous probing 2016-11-10 17:28:16 +01:00
Makefile driver-core: add test module for asynchronous probing 2016-11-10 17:28:16 +01:00
map.c drivers: base: map: Use kmalloc_array instead of kmalloc 2015-03-25 14:35:08 +01:00
memory.c drivers/base/memory.c: Remove unused 'first_page' variable 2016-11-29 20:58:31 +01:00
module.c base: make module_create_drivers_dir race-free 2016-06-15 19:21:31 -07:00
node.c treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
pinctrl.c driver: base: pinctrl: return error from pinctrl_bind_pins() 2016-09-13 23:02:59 +02:00
platform-msi.c genirq/msi: Add cpumask allocation to alloc_msi_entry 2016-09-14 22:11:08 +02:00
platform.c driver-core: platform: Catch errors from calls to irq_get_irq_data 2016-09-27 12:30:37 +02:00
property.c device property: Add function to search for named child of device 2016-06-26 12:39:03 +01:00
soc.c base: soc: make it explicitly non-modular 2016-08-31 15:13:56 +02:00
syscore.c genirq: Simplify wakeup mechanism 2014-09-01 13:48:59 +02:00
topology.c topology/sysfs: provide drawer id and siblings attributes 2016-06-13 15:58:27 +02:00
transport_class.c drivers/base: transport_class explicitly requires EXPORT_SYMBOL 2011-10-31 19:31:15 -04:00