Messages in this thread Patch in this message | | | From | "Ricardo B. Marliere" <> | Date | Sun, 11 Feb 2024 12:37:11 -0300 | Subject | [PATCH] ACPI: bus: make acpi_bus_type const |
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Now that the driver core can properly handle constant struct bus_type, move the acpi_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> --- drivers/acpi/bus.c | 2 +- include/acpi/acpi_bus.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 569bd15f211b..d9fa730416f1 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -1097,7 +1097,7 @@ static void acpi_device_remove(struct device *dev) put_device(dev); } -struct bus_type acpi_bus_type = { +const struct bus_type acpi_bus_type = { .name = "acpi", .match = acpi_bus_match, .probe = acpi_device_probe, diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index e4d24d3f9abb..f67aa93ba53e 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -582,7 +582,7 @@ void acpi_initialize_hp_context(struct acpi_device *adev, void (*uevent)(struct acpi_device *, u32)); /* acpi_device.dev.bus == &acpi_bus_type */ -extern struct bus_type acpi_bus_type; +extern const struct bus_type acpi_bus_type; int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data); int acpi_dev_for_each_child(struct acpi_device *adev, --- base-commit: c3c4923f2082353762e8f46dec6e3b0f165a1606 change-id: 20240211-bus_cleanup-acpi-7ad5cc04089c Best regards, -- Ricardo B. Marliere <ricardo@marliere.net>
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