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powerpc: pmac: make macio_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 macio_bus_type variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.

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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240212-bus_cleanup-powerpc2-v2-4-8441b3f77827@marliere.net
This commit is contained in:
Ricardo B. Marliere 2024-02-12 17:05:02 -03:00 committed by Michael Ellerman
parent 8e3d0b8d99
commit 112202f34e
2 changed files with 2 additions and 2 deletions
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2
arch/powerpc/include/asm/macio.h
View File

@ -6,7 +6,7 @@
#include <linux/of.h>
#include <linux/platform_device.h>
extern struct bus_type macio_bus_type;
extern const struct bus_type macio_bus_type;
/* MacIO device driver is defined later */
struct macio_driver;

2
drivers/macintosh/macio_asic.c
View File

@ -136,7 +136,7 @@ static int macio_device_modalias(const struct device *dev, struct kobj_uevent_en
extern const struct attribute_group *macio_dev_groups[];
struct bus_type macio_bus_type = {
const struct bus_type macio_bus_type = {
.name = "macio",
.match = macio_bus_match,
.uevent = macio_device_modalias,