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mips: bus: make mips_cdmm_bustype const 

Now that the driver core can properly handle constant struct bus_type,
move the mips_cdmm_bustype 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>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Ricardo B. Marliere 2024-02-13 11:49:24 -03:00 committed by Thomas Bogendoerfer
parent aaf2230036
commit eac95d5ae4
2 changed files with 2 additions and 2 deletions
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2
arch/mips/include/asm/cdmm.h
View File

@ -63,7 +63,7 @@ struct mips_cdmm_driver {
*/
phys_addr_t mips_cdmm_phys_base(void);
extern struct bus_type mips_cdmm_bustype;
extern const struct bus_type mips_cdmm_bustype;
void __iomem *mips_cdmm_early_probe(unsigned int dev_type);
#define to_mips_cdmm_device(d) container_of(d, struct mips_cdmm_device, dev)

2
drivers/bus/mips_cdmm.c
View File

@ -118,7 +118,7 @@ static struct attribute *mips_cdmm_dev_attrs[] = {
};
ATTRIBUTE_GROUPS(mips_cdmm_dev);
struct bus_type mips_cdmm_bustype = {
const struct bus_type mips_cdmm_bustype = {
.name = "cdmm",
.dev_groups = mips_cdmm_dev_groups,
.match = mips_cdmm_match,