soc: qcom: apr: make aprbus const

Since commit d492cc2573a0 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the aprbus 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-apr-v1-1-50c824eec06d@marliere.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/drivers/soc/qcom/apr.c b/drivers/soc/qcom/apr.c
index 1f8b315576a4abc3f697b03fcf9ecf6d438d4df4..50749e870efaf52ff27ff69bd0baee0a19dfdfd1 100644 (file)
--- a/drivers/soc/qcom/apr.c
+++ b/drivers/soc/qcom/apr.c
@@ -399,7 +399,7 @@ static int apr_uevent(const struct device *dev, struct kobj_uevent_env *env)
        return add_uevent_var(env, "MODALIAS=apr:%s", adev->name);
 }
 
-struct bus_type aprbus = {
+const struct bus_type aprbus = {
        .name           = "aprbus",
        .match          = apr_device_match,
        .probe          = apr_device_probe,

diff --git a/include/linux/soc/qcom/apr.h b/include/linux/soc/qcom/apr.h
index be98aebcb3e19b94ef139bbe21d560b1f62e552b..7161a3183eda5dc20c107169276bc3a3f6c7314c 100644 (file)
--- a/include/linux/soc/qcom/apr.h
+++ b/include/linux/soc/qcom/apr.h
@@ -9,7 +9,7 @@
 #include <dt-bindings/soc/qcom,apr.h>
 #include <dt-bindings/soc/qcom,gpr.h>
 
-extern struct bus_type aprbus;
+extern const struct bus_type aprbus;
 
 #define APR_HDR_LEN(hdr_len) ((hdr_len)/4)