Extern or forward variable declaration at include/media/v4l2-async.h, line 21 References: drivers/media/platform/am437x/am437x-vpfe.c, line 2292 drivers/media/platform/am437x/am437x-vpfe.c, line 2410 drivers/media/platform/am437x/am437x-vpfe.h, line 236 drivers/media/platform/atmel/atmel-isc.c, line 83 drivers/media/platform/atmel/atmel-isc.c, line 1410 drivers/media/platform/atmel/atmel-isc.c, line 1429 drivers/media/platform/atmel/atmel-isc.c, line 1547 drivers/media/platform/atmel/atmel-isi.c, line 124 drivers/media/platform/atmel/atmel-isi.c, line 1056 drivers/media/platform/atmel/atmel-isi.c, line 1086 drivers/media/platform/atmel/atmel-isi.c, line 1098 drivers/media/platform/davinci/vpif_capture.c, line 1320 drivers/media/platform/davinci/vpif_capture.c, line 1416 drivers/media/platform/davinci/vpif_capture.h, line 112 drivers/media/platform/davinci/vpif_display.c, line 1117 drivers/media/platform/davinci/vpif_display.c, line 1230 drivers/media/platform/davinci/vpif_display.h, line 121 drivers/media/platform/exynos4-is/media-dev.c, line 1354 drivers/media/platform/exynos4-is/media-dev.c, line 1387 drivers/media/platform/exynos4-is/media-dev.h, line 151 drivers/media/platform/exynos4-is/media-dev.h, line 172 drivers/media/platform/omap3isp/isp.c, line 2089 drivers/media/platform/omap3isp/isp.c, line 2128 drivers/media/platform/omap3isp/isp.c, line 2141 drivers/media/platform/omap3isp/isp.h, line 177 drivers/media/platform/pxa_camera.c, line 663 drivers/media/platform/pxa_camera.c, line 2083 drivers/media/platform/pxa_camera.c, line 2162 drivers/media/platform/rcar-vin/rcar-core.c, line 59 drivers/media/platform/rcar-vin/rcar-core.c, line 83 drivers/media/platform/rcar-vin/rcar-core.c, line 99 drivers/media/platform/rcar-vin/rcar-vin.h, line 127 drivers/media/platform/soc_camera/soc_camera.c, line 58 drivers/media/platform/soc_camera/soc_camera.c, line 1324 drivers/media/platform/soc_camera/soc_camera.c, line 1357 drivers/media/platform/soc_camera/soc_camera.c, line 1373 drivers/media/platform/ti-vpe/cal.c, line 271 drivers/media/platform/ti-vpe/cal.c, line 350 drivers/media/platform/ti-vpe/cal.c, line 1436 drivers/media/platform/ti-vpe/cal.c, line 1495 drivers/media/platform/xilinx/xilinx-vipp.c, line 289 drivers/media/platform/xilinx/xilinx-vipp.c, line 317 drivers/media/platform/xilinx/xilinx-vipp.h, line 41 drivers/media/v4l2-core/v4l2-async.c, line 62 drivers/media/v4l2-core/v4l2-async.c, line 97 drivers/media/v4l2-core/v4l2-async.c, line 140 drivers/media/v4l2-core/v4l2-async.c, line 196 drivers/media/v4l2-core/v4l2-async.c, line 276 drivers/media/v4l2-core/v4l2-async.c, line 310 include/media/v4l2-async.h, line 21 include/media/v4l2-async.h, line 91 include/media/v4l2-async.h, line 98 include/media/v4l2-async.h, line 101 include/media/v4l2-async.h, line 102 include/media/v4l2-async.h, line 114 include/media/v4l2-async.h, line 121 include/media/v4l2-subdev.h, line 824