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soundwire: constify the struct device_type usage

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Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the
sdw_master_type and sdw_slave_type variables to be constant structures as
well, placing it into read-only memory which can not be modified at
runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Link: https://lore.kernel.org/r/20240219-device_cleanup-soundwire-v1-1-9edd51767611@marliere.net
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Ricardo B. Marliere 2024-02-19 09:14:36 -03:00 committed by Vinod Koul
parent 81a7d0c4d0
commit 99fea943d9
3 changed files with 4 additions and 4 deletions
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2
drivers/soundwire/master.c
View File

@ -112,7 +112,7 @@ static const struct dev_pm_ops master_dev_pm = {
pm_generic_runtime_resume, NULL)
};
struct device_type sdw_master_type = {
const struct device_type sdw_master_type = {
.name = "soundwire_master",
.release = sdw_master_device_release,
.pm = &master_dev_pm,

2
drivers/soundwire/slave.c
View File

@ -16,7 +16,7 @@ static void sdw_slave_release(struct device *dev)
kfree(slave);
}
struct device_type sdw_slave_type = {
const struct device_type sdw_slave_type = {
.name = "sdw_slave",
.release = sdw_slave_release,
.uevent = sdw_slave_uevent,

4
include/linux/soundwire/sdw_type.h
View File

@ -5,8 +5,8 @@
#define __SOUNDWIRE_TYPES_H
extern const struct bus_type sdw_bus_type;
extern struct device_type sdw_slave_type;
extern struct device_type sdw_master_type;
extern const struct device_type sdw_slave_type;
extern const struct device_type sdw_master_type;
static inline int is_sdw_slave(const struct device *dev)
{