diff options
| author | Greg Kroah-Hartman <[email protected]> | 2024-01-05 11:26:48 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2024-01-30 15:57:50 -0800 |
| commit | 3a480d4bb5b1e1f09426223e68acaa90da32e384 (patch) | |
| tree | 5f8e62c26bd4dea58a01fcedd9d527373d7de0f1 | |
| parent | 05d8f255867e3196565bb31a911a437697fab094 (diff) | |
driver core: cpu: make cpu_subsys const
Now that the driver core can properly handle constant struct bus_type,
move the cpu_subsys variable to be a constant structure as well, placing
it into read-only memory which can not be modified at runtime.
Cc: "Rafael J. Wysocki" <[email protected]>
Link: https://lore.kernel.org/r/2024010548-crane-snooze-a871@gregkh
Signed-off-by: Greg Kroah-Hartman <[email protected]>
| -rw-r--r-- | drivers/base/cpu.c | 2 | ||||
| -rw-r--r-- | include/linux/cpu.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 47de0f140ba6..ac84854c85d7 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -366,7 +366,7 @@ static int cpu_uevent(const struct device *dev, struct kobj_uevent_env *env) } #endif -struct bus_type cpu_subsys = { +const struct bus_type cpu_subsys = { .name = "cpu", .dev_name = "cpu", .match = cpu_subsys_match, diff --git a/include/linux/cpu.h b/include/linux/cpu.h index dcb89c987164..0b993a140946 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -128,7 +128,7 @@ static inline void cpu_maps_update_done(void) static inline int add_cpu(unsigned int cpu) { return 0;} #endif /* CONFIG_SMP */ -extern struct bus_type cpu_subsys; +extern const struct bus_type cpu_subsys; extern int lockdep_is_cpus_held(void); |