diff options
Diffstat (limited to 'include/linux/device.h')
| -rw-r--r-- | include/linux/device.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 424b55df0272..84ae52de6746 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -680,11 +680,27 @@ struct device_link { bool supplier_preactivated; /* Owned by consumer probe. */ }; -static inline struct device *kobj_to_dev(struct kobject *kobj) +static inline struct device *__kobj_to_dev(struct kobject *kobj) { return container_of(kobj, struct device, kobj); } +static inline const struct device *__kobj_to_dev_const(const struct kobject *kobj) +{ + return container_of(kobj, const struct device, kobj); +} + +/* + * container_of() will happily take a const * and spit back a non-const * as it + * is just doing pointer math. But we want to be a bit more careful in the + * driver code, so manually force any const * of a kobject to also be a const * + * to a device. + */ +#define kobj_to_dev(kobj) \ + _Generic((kobj), \ + const struct kobject *: __kobj_to_dev_const, \ + struct kobject *: __kobj_to_dev)(kobj) + /** * device_iommu_mapped - Returns true when the device DMA is translated * by an IOMMU @@ -1046,12 +1062,8 @@ static inline void device_remove_group(struct device *dev, int __must_check devm_device_add_groups(struct device *dev, const struct attribute_group **groups); -void devm_device_remove_groups(struct device *dev, - const struct attribute_group **groups); int __must_check devm_device_add_group(struct device *dev, const struct attribute_group *grp); -void devm_device_remove_group(struct device *dev, - const struct attribute_group *grp); /* * Platform "fixup" functions - allow the platform to have their say |