On Fri, Jun 29, 2018 at 12:52:34PM +0800, kbuild test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-next > head: aaf3f4e925dc2bdc4715142103660285632a245c > commit: 990da41530b31ed7de29340ce1d78c04bee9670c [36/38] staging: typec: tcpci: move tcpci drivers out of staging > config: x86_64-randconfig-a0-06290727 (attached as .config) > compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 > reproduce: > git checkout 990da41530b31ed7de29340ce1d78c04bee9670c > # save the attached .config to linux build tree > make ARCH=x86_64 > > All errors (new ones prefixed by >>): > > drivers/usb/typec/tcpci.o: In function `tcpci_probe': > >> drivers/usb/typec/tcpci.c:549: undefined reference to `__devm_regmap_init_i2c' > drivers/usb/typec/tcpci.o: In function `tcpci_i2c_driver_init': > >> drivers/usb/typec/tcpci.c:609: undefined reference to `i2c_register_driver' > drivers/usb/typec/tcpci.o: In function `tcpci_i2c_driver_exit': > >> drivers/usb/typec/tcpci.c:609: undefined reference to `i2c_del_driver' > drivers/usb/typec/tcpci_rt1711h.o: In function `rt1711h_check_revision': > >> drivers/usb/typec/tcpci_rt1711h.c:218: undefined reference to `i2c_smbus_read_word_data' > drivers/usb/typec/tcpci_rt1711h.c:225: undefined reference to `i2c_smbus_read_word_data' > drivers/usb/typec/tcpci_rt1711h.o: In function `rt1711h_probe': > >> drivers/usb/typec/tcpci_rt1711h.c:251: undefined reference to `__devm_regmap_init_i2c' > drivers/usb/typec/tcpci_rt1711h.o: In function `rt1711h_i2c_driver_init': > >> drivers/usb/typec/tcpci_rt1711h.c:308: undefined reference to `i2c_register_driver' > drivers/usb/typec/tcpci_rt1711h.o: In function `rt1711h_i2c_driver_exit': > >> drivers/usb/typec/tcpci_rt1711h.c:308: undefined reference to `i2c_del_driver' > This is because CONFIG_I2C=m but CONFIG_TYPEC_TCPCI=y. I didn't know this was even possible given the dependencies. When I load the configuration into menuconfig and save it, or if I run "make olddefconfig", the problem disappears. Puzzled. Greg, did you update the patch already ? Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
