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tc: make tc_bus_type const

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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 tc_bus_type 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>
Acked-by: Maciej W. Rozycki <macro@orcam.me.uk>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Ricardo B. Marliere 2024-02-13 11:45:25 -03:00 committed by Thomas Bogendoerfer
parent 1003a1adf4
commit aaf2230036
2 changed files with 2 additions and 2 deletions
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2
drivers/tc/tc-driver.c
View File

@ -95,7 +95,7 @@ static int tc_bus_match(struct device *dev, struct device_driver *drv)
return 0;
}
struct bus_type tc_bus_type = {
const struct bus_type tc_bus_type = {
.name = "tc",
.match = tc_bus_match,
};

2
include/linux/tc.h
View File

@ -120,7 +120,7 @@ static inline unsigned long tc_get_speed(struct tc_bus *tbus)
#ifdef CONFIG_TC
extern struct bus_type tc_bus_type;
extern const struct bus_type tc_bus_type;
extern int tc_register_driver(struct tc_driver *tdrv);
extern void tc_unregister_driver(struct tc_driver *tdrv);