diff options
| author | Kunwu Chan <chentao@kylinos.cn> | 2024-08-23 15:55:44 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-03 13:00:50 +0200 |
| commit | 24e041e1e48d06f25a12caaf73728a4ec2e511fe (patch) | |
| tree | 58a9e200d24b9ea57213b61617958fffbe535620 | |
| parent | a169a663bfa8198f33a5c1002634cc89e5128025 (diff) | |
platform: Make platform_bus_type constant
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 platform_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: Kunwu Chan <chentao@kylinos.cn>
Link: https://lore.kernel.org/r/20240823075544.144426-1-kunwu.chan@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/base/platform.c | 2 | ||||
| -rw-r--r-- | include/linux/platform_device.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 4c3ee6521ba5..6f2a33722c52 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -1474,7 +1474,7 @@ static const struct dev_pm_ops platform_dev_pm_ops = { USE_PLATFORM_PM_SLEEP_OPS }; -struct bus_type platform_bus_type = { +const struct bus_type platform_bus_type = { .name = "platform", .dev_groups = platform_dev_groups, .match = platform_match, diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index d422db6eec63..7132623e4658 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -52,7 +52,7 @@ struct platform_device { extern int platform_device_register(struct platform_device *); extern void platform_device_unregister(struct platform_device *); -extern struct bus_type platform_bus_type; +extern const struct bus_type platform_bus_type; extern struct device platform_bus; extern struct resource *platform_get_resource(struct platform_device *, |