Extern or forward variable declaration at include/linux/hiddev.h, line 221 References: drivers/hid/hid-core.c, line 56 drivers/hid/hid-core.c, line 59 drivers/hid/hid-core.c, line 64 drivers/hid/hid-core.c, line 85 drivers/hid/hid-core.c, line 207 drivers/hid/hid-core.c, line 527 drivers/hid/hid-core.c, line 549 drivers/hid/hid-core.c, line 815 drivers/hid/hid-core.c, line 962 drivers/hid/hid-core.c, line 1001 drivers/hid/hid-core.c, line 1004 drivers/hid/hid-core.c, line 1022 drivers/hid/hid-core.c, line 1077 drivers/hid/usbhid/hid-core.c, line 302 drivers/hid/usbhid/hid-core.c, line 335 drivers/hid/usbhid/hid-core.c, line 492 drivers/hid/usbhid/hid-core.c, line 545 drivers/hid/usbhid/hid-core.c, line 680 drivers/hid/usbhid/hid-core.c, line 711 drivers/hid/usbhid/hid-core.c, line 750 drivers/hid/usbhid/hiddev.c, line 78 drivers/hid/usbhid/hiddev.c, line 84 drivers/hid/usbhid/hiddev.c, line 103 drivers/hid/usbhid/hiddev.c, line 116 drivers/hid/usbhid/hiddev.c, line 135 drivers/hid/usbhid/hiddev.c, line 209 drivers/hid/usbhid/hiddev.c, line 446 drivers/hid/usbhid/hiddev.c, line 602 include/linux/hiddev.h, line 221 include/linux/hiddev.h, line 228 include/linux/hiddev.h, line 238