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@xxxxxxxxxxxxxx>
---
include/linux/hid.h | 4 ++--
1 file 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;
};
--
2.42.0
