Extern or forward variable declaration include/linux/acpi.h, line 720 [usage...] include/linux/device.h, line 41 [usage...] include/linux/gpio/consumer.h, line 174 [usage...] include/linux/gpio/consumer.h, line 534 [usage...] include/linux/irqchip/arm-gic-common.h, line 45 [usage...] include/linux/irqchip/arm-gic-v3.h, line 706 [usage...] include/linux/msi.h, line 263 [usage...] include/linux/phylink.h, line 10 [usage...] include/linux/sfp.h, line 496 [usage...] include/linux/usb/typec.h, line 21 [usage...] include/linux/usb/typec_mux.h, line 13 [usage...] include/media/v4l2-fwnode.h, line 27 [usage...] Structure include/linux/fwnode.h, line 21 [usage...] Class, struct, or union member drivers/irqchip/irq-gic-v3-its.c, line 117 [usage...]