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soundwire: bus_type: make sdw_bus_type const

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Since commit d492cc2573 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the sdw_bus_type variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240213-bus_cleanup-soundwire-v1-1-3878b00f6f57@marliere.net
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Ricardo B. Marliere 2024-02-13 11:36:56 -03:00 committed by Vinod Koul
parent 9282cfa2eb
commit 81a7d0c4d0
2 changed files with 2 additions and 2 deletions
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2
drivers/soundwire/bus_type.c
View file

@ -72,7 +72,7 @@ int sdw_slave_uevent(const struct device *dev, struct kobj_uevent_env *env)
return 0;
}
struct bus_type sdw_bus_type = {
const struct bus_type sdw_bus_type = {
.name = "soundwire",
.match = sdw_bus_match,
};

2
include/linux/soundwire/sdw_type.h
View file

@ -4,7 +4,7 @@
#ifndef __SOUNDWIRE_TYPES_H
#define __SOUNDWIRE_TYPES_H
extern struct bus_type sdw_bus_type;
extern const struct bus_type sdw_bus_type;
extern struct device_type sdw_slave_type;
extern struct device_type sdw_master_type;