Extern or forward variable declaration at include/usb.h, line 832 References: drivers/usb/host/ehci-exynos.c, line 40 drivers/usb/host/ehci-faraday.c, line 32 drivers/usb/host/ehci-faraday.c, line 37 drivers/usb/host/ehci-faraday.c, line 66 drivers/usb/host/ehci-generic.c, line 19 drivers/usb/host/ehci-hcd.c, line 35 drivers/usb/host/ehci-hcd.c, line 113 drivers/usb/host/ehci-hcd.c, line 122 drivers/usb/host/ehci-hcd.c, line 127 drivers/usb/host/ehci-hcd.c, line 143 drivers/usb/host/ehci-hcd.c, line 149 drivers/usb/host/ehci-hcd.c, line 176 drivers/usb/host/ehci-hcd.c, line 204 drivers/usb/host/ehci-hcd.c, line 315 drivers/usb/host/ehci-hcd.c, line 670 drivers/usb/host/ehci-hcd.c, line 947 drivers/usb/host/ehci-hcd.c, line 968 drivers/usb/host/ehci-hcd.c, line 980 drivers/usb/host/ehci-hcd.c, line 1098 drivers/usb/host/ehci-hcd.c, line 1152 drivers/usb/host/ehci-hcd.c, line 1179 drivers/usb/host/ehci-hcd.c, line 1200 drivers/usb/host/ehci-hcd.c, line 1223 drivers/usb/host/ehci-hcd.c, line 1427 drivers/usb/host/ehci-hcd.c, line 1600 drivers/usb/host/ehci-hcd.c, line 1640 drivers/usb/host/ehci-marvell.c, line 35 drivers/usb/host/ehci-msm.c, line 37 drivers/usb/host/ehci-msm.c, line 62 drivers/usb/host/ehci-mx5.c, line 221 drivers/usb/host/ehci-pci.c, line 18 drivers/usb/host/ehci-sunxi.c, line 29 drivers/usb/host/ehci-tegra.c, line 74 drivers/usb/host/ehci-tegra.c, line 209 drivers/usb/host/ehci-tegra.c, line 228 drivers/usb/host/ehci-tegra.c, line 241 drivers/usb/host/ehci.h, line 235 drivers/usb/host/ehci.h, line 238 drivers/usb/host/ehci.h, line 239 drivers/usb/host/ehci.h, line 240 drivers/usb/host/ehci.h, line 242 drivers/usb/host/ehci.h, line 243 drivers/usb/host/ehci.h, line 246 drivers/usb/host/usb-uclass.c, line 358 include/usb.h, line 832 include/usb.h, line 842