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SubjectRe: [PATCH v2 5/5] ACPI: Drop parent field from struct acpi_device
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On Saturday, August 27, 2022 3:19:33 PM CEST Hanjun Guo wrote:
> Hi Rafael,
>
> On 2022/8/25 0:59, Rafael J. Wysocki wrote:
> > Index: linux-pm/include/acpi/acpi_bus.h
> > ===================================================================
> > --- linux-pm.orig/include/acpi/acpi_bus.h
> > +++ linux-pm/include/acpi/acpi_bus.h
> > @@ -365,7 +365,6 @@ struct acpi_device {
> > int device_type;
> > acpi_handle handle; /* no handle for fixed hardware */
> > struct fwnode_handle fwnode;
> > - struct acpi_device *parent;
> > struct list_head wakeup_list;
> > struct list_head del_list;
> > struct acpi_device_status status;
> > @@ -458,6 +457,14 @@ static inline void *acpi_driver_data(str
> > #define to_acpi_device(d) container_of(d, struct acpi_device, dev)
> > #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
> >
> > +static inline struct acpi_device *acpi_dev_parent(struct acpi_device *adev)
> > +{
> > + if (adev->dev.parent)
> > + return to_acpi_device(adev->dev.parent);
> > +
> > + return NULL;
> > +}
> > +
> > static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
> > {
> > *((u32 *)&adev->status) = sta;
> > @@ -478,6 +485,7 @@ void acpi_initialize_hp_context(struct a
> > /* acpi_device.dev.bus == &acpi_bus_type */
> > extern struct bus_type acpi_bus_type;
> >
> > +struct acpi_device *acpi_dev_parent(struct acpi_device *adev);
>
> We have a static inline function above, is it duplicated here?
> Or did I miss some use cases?

No, you didn't, it is redundant.

I've just sent a fix for this.

Thanks!



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