Backported to bionic/linux commit f83baa0cb6cf ("HID: add hid_is_usb() function to make it simpler for USB detection") brings to HID_ASUS usage of hid_is_usb() which is provided by USB_HID. If HID_ASUS is built as module but USB_HID is not, the kernel build will fail (like linux-azure) did:
ERROR: "usb_hid_driver" [drivers/hid/hid-asus.ko] undefined!
Because of backport of commit commit f83baa0cb6cf ("HID: add hid_is_usb() function to make it simpler for USB detection"), the bionic/linux needs also backport of commit c4f0126d487f ("HID: asus: Add depends on USB_HID to HID_ASUS Kconfig option").
Backported to bionic/linux commit f83baa0cb6cf ("HID: add hid_is_usb() function to make it simpler for USB detection") brings to HID_ASUS usage of hid_is_usb() which is provided by USB_HID. If HID_ASUS is built as module but USB_HID is not, the kernel build will fail (like linux-azure) did: hid/hid- asus.ko] undefined!
ERROR: "usb_hid_driver" [drivers/
Because of backport of commit commit f83baa0cb6cf ("HID: add hid_is_usb() function to make it simpler for USB detection"), the bionic/linux needs also backport of commit c4f0126d487f ("HID: asus: Add depends on USB_HID to HID_ASUS Kconfig option").