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platform/x86: wmi: Add to_wmi_device() helper macro

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Add a helper macro for WMI drivers to cast a device to
the corresponding WMI device. This should replace some
boilerplate code.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20231103182526.3524-2-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Armin Wolf 2023-11-03 19:25:24 +01:00 committed by Hans de Goede
parent f25d34646b
commit 7275bf3e09
1 changed files with 8 additions and 0 deletions
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8
include/linux/wmi.h
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@ -27,6 +27,14 @@ struct wmi_device {
bool setable;
};
/**
* to_wmi_device() - Helper macro to cast a device to a wmi_device
* @device: device struct
*
* Cast a struct device to a struct wmi_device.
*/
#define to_wmi_device(device) container_of(device, struct wmi_device, dev)
extern acpi_status wmidev_evaluate_method(struct wmi_device *wdev,
u8 instance, u32 method_id,
const struct acpi_buffer *in,