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authorRicardo B. Marliere <ricardo@marliere.net>2024-02-11 18:51:30 +0300
committerSudeep Holla <sudeep.holla@arm.com>2024-02-20 09:35:55 +0300
commit961745b2c42eb562a6b4433dc5f8fbd974ce4137 (patch)
tree78314c075bed46a63955c94f2ec0e55207323805 /drivers/firmware/arm_scmi
parentf1d71576d2c9ec8fdb822173fa7f3de79475e9bd (diff)
downloadlinux-961745b2c42eb562a6b4433dc5f8fbd974ce4137.tar.xz
firmware: arm_scmi: Make scmi_bus_type const
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>
Diffstat (limited to 'drivers/firmware/arm_scmi')
-rw-r--r--drivers/firmware/arm_scmi/bus.c2
-rw-r--r--drivers/firmware/arm_scmi/common.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/firmware/arm_scmi/bus.c b/drivers/firmware/arm_scmi/bus.c
index 1f9735dbebec..77c78be6e79c 100644
--- a/drivers/firmware/arm_scmi/bus.c
+++ b/drivers/firmware/arm_scmi/bus.c
@@ -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,
diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h
index 00b165d1f502..6affbfdd1dec 100644
--- a/drivers/firmware/arm_scmi/common.h
+++ b/drivers/firmware/arm_scmi/common.h
@@ -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