diff options
| author | Thomas Weißschuh <linux@weissschuh.net> | 2023-10-12 12:23:38 +0200 |
|---|---|---|
| committer | Benjamin Tissoires <bentiss@kernel.org> | 2023-10-25 18:33:42 +0200 |
| commit | df8b030d82dd1224881acb4e778fa06c4824f72b (patch) | |
| tree | 71116db8edf3f34ad755aa8b781fe8e989bd92b4 /include/linux/hid.h | |
| parent | bab19d1b21547046b0a38dde948086f6cbcaefaa (diff) | |
HID: core: remove #ifdef CONFIG_PM from hid_driver
Allow HID drivers to pass ->suspend, ->resume and ->reset_resume via
pm_ptr().
Through the usage of pm_ptr() the CONFIG_PM-dependent code will always be
compiled, protecting against bitrot.
The linker will then garbage-collect the unused function avoiding any overhead.
The only overhead in the final kernel image and at runtime are a few
extra bytes in 'struct hid_driver'.
The same approach is chosen by 'struct usb_driver' and other subsystems.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20231012-hid-pm_ptr-v1-1-0a71531ca93b@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Diffstat (limited to 'include/linux/hid.h')
| -rw-r--r-- | include/linux/hid.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h index 964ca1f15e3f..5a8387a4a712 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -833,11 +833,11 @@ struct hid_driver { void (*feature_mapping)(struct hid_device *hdev, struct hid_field *field, struct hid_usage *usage); -#ifdef CONFIG_PM + int (*suspend)(struct hid_device *hdev, pm_message_t message); int (*resume)(struct hid_device *hdev); int (*reset_resume)(struct hid_device *hdev); -#endif + /* private: */ struct device_driver driver; }; |