Commit 112202f3 authored by Ricardo B. Marliere's avatar Ricardo B. Marliere Committed by Michael Ellerman
Browse files

powerpc: pmac: make macio_bus_type const 



Since commit d492cc25 ("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: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatar"Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240212-bus_cleanup-powerpc2-v2-4-8441b3f77827@marliere.net
parent 8e3d0b8d

arch/powerpc/include/asm/macio.h

+1 −1
Original line number Diff line number Diff line
@@ -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;

drivers/macintosh/macio_asic.c

+1 −1
Original line number Diff line number Diff line
@@ -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,