collect2: error: ld returned 1 exit status

[kbuild test robot <fengguang.wu@intel.com>]

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Hi Linus,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   045169816b31b10faed984b01c390db1b32ee4c1
commit: 2527ecc9195e9c66252af24c4689e8a67cd4ccb9 gpio: Fix OF build problem on UM
date:   4 months ago
config: um-allyesconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        git checkout 2527ecc9195e9c66252af24c4689e8a67cd4ccb9
        # save the attached .config to linux build tree
        make ARCH=um 

All errors (new ones prefixed by >>):

   arch/um/drivers/built-in.o: In function `vde_open_real':
   (.text+0xc7d1): warning: Using 'getgrnam' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   arch/um/drivers/built-in.o: In function `vde_open_real':
   (.text+0xc61c): warning: Using 'getpwuid' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   arch/um/drivers/built-in.o: In function `vde_open_real':
   (.text+0xc935): warning: Using 'getaddrinfo' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   arch/um/drivers/built-in.o: In function `pcap_nametoaddr':
   (.text+0x1d3c5): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   arch/um/drivers/built-in.o: In function `pcap_nametonetaddr':
   (.text+0x1d465): warning: Using 'getnetbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   arch/um/drivers/built-in.o: In function `pcap_nametoproto':
   (.text+0x1d685): warning: Using 'getprotobyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   arch/um/drivers/built-in.o: In function `pcap_nametoport':
   (.text+0x1d4b7): warning: Using 'getservbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   drivers/built-in.o: In function `fwnode_get_named_gpiod':
   drivers/gpio/gpiolib.c:3215: undefined reference to `of_get_named_gpiod_flags'
   drivers/built-in.o: In function `gpiod_get_index':
   drivers/gpio/gpiolib.c:3140: undefined reference to `of_get_named_gpiod_flags'
   drivers/built-in.o: In function `lp872x_probe':
   drivers/regulator/lp872x.c:773: undefined reference to `devm_gpio_request_one'
   drivers/regulator/lp872x.c:746: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `max8952_pmic_probe':
   drivers/regulator/max8952.c:249: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `max8973_probe':
   drivers/regulator/max8973-regulator.c:715: undefined reference to `devm_gpio_request_one'
   drivers/regulator/max8973-regulator.c:770: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `pwm_regulator_probe':
   drivers/regulator/pwm-regulator.c:387: undefined reference to `devm_gpiod_get_optional'
   drivers/built-in.o: In function `tps62360_probe':
   drivers/regulator/tps62360-regulator.c:433: undefined reference to `devm_gpio_request_one'
   drivers/regulator/tps62360-regulator.c:444: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `fdp_nci_i2c_probe':
   drivers/nfc/fdp/i2c.c:326: undefined reference to `devm_gpiod_get'
   drivers/built-in.o: In function `nfcmrvl_nci_unregister_dev':
   drivers/nfc/nfcmrvl/main.c:198: undefined reference to `devm_gpio_free'
   drivers/built-in.o: In function `nfcmrvl_nci_register_dev':
   drivers/nfc/nfcmrvl/main.c:127: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `st21nfca_hci_i2c_probe':
   drivers/nfc/st21nfca/i2c.c:597: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `st_nci_i2c_probe':
   drivers/nfc/st-nci/i2c.c:300: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `nxp_nci_i2c_probe':
   drivers/nfc/nxp-nci/i2c.c:361: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `mdio_gpio_probe':
   drivers/net/phy/mdio-gpio.c:177: undefined reference to `devm_gpio_request'
   drivers/built-in.o: In function `at803x_probe':
   drivers/net/phy/at803x.c:283: undefined reference to `devm_gpiod_get_optional'
   drivers/built-in.o: In function `mv88e6xxx_probe':
   drivers/net/dsa/mv88e6xxx/chip.c:4022: undefined reference to `devm_gpiod_get_optional'
   drivers/built-in.o: In function `pps_gpio_probe':
   drivers/pps/clients/pps-gpio.c:125: undefined reference to `devm_gpio_request'
   drivers/built-in.o: In function `max8903_probe':
   drivers/power/max8903_charger.c:248: undefined reference to `devm_gpio_request'
   drivers/power/max8903_charger.c:280: undefined reference to `devm_gpio_request'
   drivers/power/max8903_charger.c:243: undefined reference to `devm_gpio_request'
   drivers/built-in.o: In function `bq24257_probe':
   drivers/power/bq24257_charger.c:876: undefined reference to `devm_gpiod_get_optional'
   drivers/built-in.o: In function `bq24735_charger_probe':
   drivers/power/bq24735-charger.c:396: undefined reference to `devm_gpio_request'
   drivers/built-in.o: In function `bq25890_probe':
   drivers/power/bq25890_charger.c:726: undefined reference to `devm_gpiod_get_index'
   drivers/built-in.o: In function `intel_probe':
   drivers/bluetooth/hci_intel.c:1199: undefined reference to `devm_gpiod_get'
   drivers/built-in.o: In function `create_gpio_led':
   drivers/leds/leds-gpio.c:101: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `gpio_led_probe':
   drivers/leds/leds-gpio.c:172: undefined reference to `devm_get_gpiod_from_child'
   drivers/built-in.o: In function `lp55xx_init_device':
   drivers/leds/leds-lp55xx-common.c:402: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `lp8860_probe':
   drivers/leds/leds-lp8860.c:383: undefined reference to `devm_gpiod_get_optional'
   drivers/built-in.o: In function `lt3593_led_probe':
   drivers/leds/leds-lt3593.c:98: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `ktd2692_probe':
   drivers/leds/leds-ktd2692.c:272: undefined reference to `devm_gpiod_get'
   drivers/built-in.o: In function `gpio_extcon_probe':
   drivers/extcon/extcon-gpio.c:69: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `max3355_probe':
   drivers/extcon/extcon-max3355.c:68: undefined reference to `devm_gpiod_get'
   drivers/built-in.o: In function `usb_extcon_probe':
   drivers/extcon/extcon-usb-gpio.c:104: undefined reference to `devm_gpiod_get'
   drivers/built-in.o: In function `mma9551_probe':
   drivers/iio/accel/mma9551.c:421: undefined reference to `devm_gpiod_get_index'
   drivers/built-in.o: In function `ad5592r_probe':
   drivers/iio/dac/ad5592r-base.c:163: undefined reference to `devm_gpiod_get_optional'
   drivers/built-in.o: In function `ak8975_probe':
   drivers/iio/magnetometer/ak8975.c:886: undefined reference to `devm_gpio_request_one'
   drivers/built-in.o: In function `bmp280_common_probe':
   drivers/iio/pressure/bmp280-core.c:985: undefined reference to `devm_gpiod_get'
   drivers/built-in.o: In function `hp03_probe':
   drivers/iio/pressure/hp03.c:238: undefined reference to `devm_gpiod_get_index'
   drivers/built-in.o: In function `sx9500_probe':
   drivers/iio/proximity/sx9500.c:877: undefined reference to `devm_gpiod_get_index'
   net/built-in.o: In function `rfkill_gpio_probe':
   net/rfkill/rfkill-gpio.c:115: undefined reference to `devm_gpiod_get_optional'
   `.text.exit' referenced in section `.fini_array' of /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libc.a(sdlerror.o): defined in discarded section `.text.exit' of /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libc.a(sdlerror.o)
>> collect2: error: ld returned 1 exit status

---
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