Extern or forward variable declaration at include/linux/gpio/consumer.h, line 695 References: arch/ia64/hp/common/sba_iommu.c, line 2030 drivers/acpi/acpi_cmos_rtc.c, line 54 drivers/acpi/acpi_cmos_rtc.c, line 71 drivers/acpi/osl.c, line 1156 drivers/acpi/osl.c, line 1169 drivers/bluetooth/hci_bcm.c, line 953 drivers/firmware/efi/dev-path-parser.c, line 23 drivers/gpio/gpio-pca953x.c, line 148 drivers/gpio/gpiolib-acpi.c, line 453 drivers/gpio/gpiolib-acpi.c, line 464 drivers/gpio/gpiolib-acpi.c, line 502 drivers/gpio/gpiolib-acpi.c, line 692 drivers/gpio/gpiolib-acpi.c, line 726 drivers/gpio/gpiolib-acpi.c, line 776 drivers/gpio/gpiolib-acpi.c, line 809 drivers/gpio/gpiolib-acpi.c, line 825 drivers/gpio/gpiolib-acpi.c, line 889 drivers/gpio/gpiolib-acpi.c, line 927 drivers/gpio/gpiolib-acpi.c, line 1302 drivers/gpu/drm/i915/display/intel_dsi_vbt.c, line 429 drivers/hv/vmbus_drv.c, line 43 drivers/hv/vmbus_drv.c, line 2153 drivers/hv/vmbus_drv.c, line 2309 drivers/hv/vmbus_drv.c, line 2313 drivers/i2c/i2c-core-base.c, line 809 drivers/iio/accel/st_accel_core.c, line 1095 drivers/input/keyboard/applespi.c, line 627 drivers/net/ethernet/apm/xgene/xgene_enet_hw.c, line 825 drivers/net/ethernet/apm/xgene/xgene_enet_hw.c, line 868 drivers/net/phy/mdio-xgene.c, line 283 drivers/net/phy/sfp.c, line 2321 drivers/platform/x86/surface3-wmi.c, line 45 drivers/platform/x86/surface3-wmi.c, line 46 drivers/platform/x86/surface3-wmi.c, line 105 drivers/platform/x86/surface3-wmi.c, line 115 drivers/platform/x86/surface3-wmi.c, line 138 drivers/spi/spi-pxa2xx.c, line 1536 drivers/spi/spi.c, line 530 drivers/spi/spi.c, line 2097 drivers/spi/spi.c, line 2186 drivers/spi/spi.c, line 2258 drivers/spi/spi.c, line 4068 drivers/spi/spi.c, line 4083 drivers/spi/spi.c, line 4094 drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c, line 165 drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c, line 380 drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c, line 519 drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c, line 926 include/linux/gpio/consumer.h, line 683 include/linux/gpio/consumer.h, line 685 include/linux/gpio/consumer.h, line 687 include/linux/gpio/consumer.h, line 695 include/linux/gpio/consumer.h, line 697 include/linux/gpio/consumer.h, line 702 sound/soc/intel/boards/bytcht_cx2072x.c, line 237 sound/soc/intel/boards/bytcht_es8316.c, line 474 sound/soc/intel/boards/bytcr_rt5651.c, line 877 sound/soc/intel/boards/cht_bsw_rt5672.c, line 419 sound/soc/intel/boards/sof_wm8804.c, line 209