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firmware: arm_scmi: Make scmi_bus_type const

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Now that the driver core can properly handle constant struct bus_type,
move the scmi_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: Cristian Marussi <cristian.marussi@arm.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240211-bus_cleanup-firmware2-v1-2-1851c92c7be7@marliere.net
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Ricardo B. Marliere 2024-02-11 12:51:30 -03:00 • committed by Sudeep Holla
parent f1d71576d2
commit 961745b2c4
2 changed files with 2 additions and 2 deletions
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2
drivers/firmware/arm_scmi/bus.c
View file

@ -283,7 +283,7 @@ static void scmi_dev_remove(struct device *dev)
scmi_drv->remove(scmi_dev);
}
struct bus_type scmi_bus_type = {
const struct bus_type scmi_bus_type = {
.name = "scmi_protocol",
.match = scmi_dev_match,
.probe = scmi_dev_probe,

2
drivers/firmware/arm_scmi/common.h
View file

@ -141,7 +141,7 @@ scmi_revision_area_get(const struct scmi_protocol_handle *ph);
void scmi_setup_protocol_implemented(const struct scmi_protocol_handle *ph,
u8 *prot_imp);
extern struct bus_type scmi_bus_type;
extern const struct bus_type scmi_bus_type;
#define SCMI_BUS_NOTIFY_DEVICE_REQUEST 0
#define SCMI_BUS_NOTIFY_DEVICE_UNREQUEST 1