Extern or forward variable declaration at include/linux/ulpi/interface.h, line 8 References: drivers/usb/chipidea/ci_hdrc_imx.c, line 110 drivers/usb/chipidea/ci_hdrc_imx.c, line 182 drivers/usb/chipidea/ci_hdrc_imx.c, line 221 drivers/usb/chipidea/ci_hdrc_imx.c, line 266 drivers/usb/chipidea/ci_hdrc_imx.c, line 281 drivers/usb/chipidea/ci_hdrc_imx.c, line 329 drivers/usb/chipidea/ci_hdrc_imx.c, line 539 drivers/usb/chipidea/ci_hdrc_imx.c, line 561 drivers/usb/chipidea/ci_hdrc_imx.c, line 603 drivers/usb/chipidea/ci_hdrc_imx.c, line 630 drivers/usb/chipidea/ci_hdrc_imx.c, line 646 drivers/usb/chipidea/ci_hdrc_imx.c, line 665 drivers/usb/dwc3/core.c, line 50 drivers/usb/dwc3/core.c, line 840 drivers/usb/dwc3/core.c, line 1147 drivers/usb/dwc3/core.c, line 1202 drivers/usb/dwc3/core.c, line 1267 drivers/usb/dwc3/core.c, line 1425 drivers/usb/dwc3/core.c, line 1526 drivers/usb/dwc3/core.c, line 1887 drivers/usb/dwc3/core.c, line 1904 drivers/usb/dwc3/core.c, line 1930 drivers/usb/dwc3/core.c, line 1953 drivers/usb/dwc3/core.c, line 1967 drivers/usb/dwc3/core.c, line 1985 drivers/usb/dwc3/drd.c, line 443 drivers/usb/dwc3/dwc3-qcom.c, line 67 drivers/usb/dwc3/dwc3-qcom.c, line 159 drivers/usb/dwc3/dwc3-qcom.c, line 244 drivers/usb/dwc3/dwc3-qcom.c, line 526 drivers/usb/dwc3/dwc3-qcom.c, line 583 drivers/usb/dwc3/dwc3-qcom.c, line 651 drivers/usb/dwc3/dwc3-qcom.c, line 694 drivers/usb/dwc3/dwc3-qcom.c, line 723 drivers/usb/dwc3/dwc3-qcom.c, line 869 drivers/usb/dwc3/dwc3-qcom.c, line 890 drivers/usb/dwc3/dwc3-qcom.c, line 902 drivers/usb/dwc3/dwc3-qcom.c, line 914 drivers/usb/dwc3/dwc3-qcom.c, line 921 drivers/usb/dwc3/gadget.c, line 4189 drivers/usb/dwc3/gadget.c, line 4206