[PATCH 2/2] slimbus: core: make slimbus_bus const

From: srinivas . kandagatla
Date: Sat Feb 24 2024 - 06:44:42 EST


From: "Ricardo B. Marliere" <ricardo@xxxxxxxxxxxx>

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 slimbus_bus 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@xxxxxxxxxxxxxxxxxxx>
Suggested-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ricardo B. Marliere <ricardo@xxxxxxxxxxxx>
Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
---
drivers/slimbus/core.c | 2 +-
include/linux/slimbus.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/slimbus/core.c b/drivers/slimbus/core.c
index d43873bb5fe6..375218e02e28 100644
--- a/drivers/slimbus/core.c
+++ b/drivers/slimbus/core.c
@@ -100,7 +100,7 @@ static int slim_device_uevent(const struct device *dev, struct kobj_uevent_env *
return add_uevent_var(env, "MODALIAS=slim:%s", dev_name(&sbdev->dev));
}

-struct bus_type slimbus_bus = {
+const struct bus_type slimbus_bus = {
.name = "slimbus",
.match = slim_device_match,
.probe = slim_device_probe,
diff --git a/include/linux/slimbus.h b/include/linux/slimbus.h
index 12c9719b2a55..3042385b7b40 100644
--- a/include/linux/slimbus.h
+++ b/include/linux/slimbus.h
@@ -10,7 +10,7 @@
#include <linux/completion.h>
#include <linux/mod_devicetable.h>

-extern struct bus_type slimbus_bus;
+extern const struct bus_type slimbus_bus;

/**
* struct slim_eaddr - Enumeration address for a SLIMbus device
--
2.25.1