Hi Chanho, FYI, the error/warning still remains. tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android13-5.10 head: 0b57557c8d4c5bc3f102bcc5f901482dbcb2ba1c commit: 36ab8cea47b0d4a3c5067577430c147a903b5261 [2895/9999] ANDROID: GKI: Kconfig.gki: Add GKI_HIDDEN_ETHERNET_CONFIGS config: arm-randconfig-r023-20220120 (https://download.01.org/0day-ci/archive/20220122/202201220224.w1sN3O9g-lk...) compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/ammarfaizi2/linux-block/commit/36ab8cea47b0d4a3c506757... git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android13-5.10 git checkout 36ab8cea47b0d4a3c5067577430c147a903b5261 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: drivers/tty/hvc/hvc_console.o: in function `hvc_cleanup': hvc_console.c:(.text+0x4d4): undefined reference to `tty_port_put' arm-linux-gnueabi-ld: drivers/tty/hvc/hvc_console.o: in function `hvc_set_winsz': hvc_console.c:(.text+0x59c): undefined reference to `tty_port_tty_get' arm-linux-gnueabi-ld: hvc_console.c:(.text+0x5dc): undefined reference to `tty_do_resize' arm-linux-gnueabi-ld: drivers/tty/hvc/hvc_console.o: in function `hvc_hangup': hvc_console.c:(.text+0x6f4): undefined reference to `tty_port_tty_set' arm-linux-gnueabi-ld: drivers/tty/hvc/hvc_console.o: in function `hvc_open': hvc_console.c:(.text+0x790): undefined reference to `tty_port_tty_set' arm-linux-gnueabi-ld: drivers/tty/hvc/hvc_console.o: in function `hvc_close': hvc_console.c:(.text+0xa20): undefined reference to `tty_hung_up_p' arm-linux-gnueabi-ld: hvc_console.c:(.text+0xa6c): undefined reference to `tty_port_tty_set' arm-linux-gnueabi-ld: hvc_console.c:(.text+0xae8): undefined reference to `tty_wait_until_sent' arm-linux-gnueabi-ld: drivers/tty/hvc/hvc_console.o: in function `hvc_remove': hvc_console.c:(.text+0xb5c): undefined reference to `tty_port_tty_get' arm-linux-gnueabi-ld: hvc_console.c:(.text+0xbc4): undefined reference to `tty_port_put' arm-linux-gnueabi-ld: hvc_console.c:(.text+0xbd8): undefined reference to `tty_vhangup' arm-linux-gnueabi-ld: drivers/tty/hvc/hvc_console.o: in function `__hvc_poll': hvc_console.c:(.text+0xcc0): undefined reference to `tty_port_tty_get' arm-linux-gnueabi-ld: hvc_console.c:(.text+0xd2c): undefined reference to `tty_buffer_request_room' arm-linux-gnueabi-ld: hvc_console.c:(.text+0xd88): undefined reference to `tty_hangup' arm-linux-gnueabi-ld: hvc_console.c:(.text+0xeb8): undefined reference to `__tty_insert_flip_char' arm-linux-gnueabi-ld: hvc_console.c:(.text+0xf68): undefined reference to `tty_wakeup' arm-linux-gnueabi-ld: hvc_console.c:(.text+0xfa4): undefined reference to `tty_flip_buffer_push' arm-linux-gnueabi-ld: drivers/tty/hvc/hvc_console.o: in function `hvc_install': hvc_console.c:(.text+0x12f8): undefined reference to `tty_port_install' arm-linux-gnueabi-ld: hvc_console.c:(.text+0x130c): undefined reference to `tty_port_put' arm-linux-gnueabi-ld: drivers/tty/hvc/hvc_console.o: in function `hvc_alloc': hvc_console.c:(.text+0x1390): undefined reference to `__tty_alloc_driver' arm-linux-gnueabi-ld: hvc_console.c:(.text+0x13b0): undefined reference to `tty_std_termios' arm-linux-gnueabi-ld: hvc_console.c:(.text+0x13b4): undefined reference to `tty_std_termios' arm-linux-gnueabi-ld: hvc_console.c:(.text+0x1408): undefined reference to `tty_set_operations' arm-linux-gnueabi-ld: hvc_console.c:(.text+0x1450): undefined reference to `tty_register_driver' arm-linux-gnueabi-ld: hvc_console.c:(.text+0x147c): undefined reference to `put_tty_driver' arm-linux-gnueabi-ld: hvc_console.c:(.text+0x14c8): undefined reference to `tty_port_init' arm-linux-gnueabi-ld: hvc_console.c:(.text+0x16b0): undefined reference to `put_tty_driver' arm-linux-gnueabi-ld: drivers/tty/hvc/hvc_console.o: in function `hvc_instantiate': hvc_console.c:(.text+0x1748): undefined reference to `tty_port_put' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_get_fixed_state': arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_decode_c37_word': phylink.c:(.text+0x450): undefined reference to `linkmode_resolve_pause' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_mac_config': phylink.c:(.text+0x548): undefined reference to `phy_speed_to_str' arm-linux-gnueabi-ld: phylink.c:(.text+0x554): undefined reference to `phy_duplex_to_str' arm-linux-gnueabi-ld: phylink.c:(.text+0x5a4): undefined reference to `__dynamic_netdev_dbg' arm-linux-gnueabi-ld: phylink.c:(.text+0x638): undefined reference to `phy_speed_to_str' arm-linux-gnueabi-ld: phylink.c:(.text+0x644): undefined reference to `phy_duplex_to_str' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_major_config': phylink.c:(.text+0x758): undefined reference to `__dynamic_netdev_dbg' arm-linux-gnueabi-ld: phylink.c:(.text+0x834): undefined reference to `netdev_printk' arm-linux-gnueabi-ld: phylink.c:(.text+0x8e8): undefined reference to `netdev_printk' arm-linux-gnueabi-ld: phylink.c:(.text+0x9a8): undefined reference to `netdev_printk' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_change_inband_advert': phylink.c:(.text+0xb0c): undefined reference to `__dynamic_netdev_dbg' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_link_down': phylink.c:(.text+0xc64): undefined reference to `netif_carrier_off' arm-linux-gnueabi-ld: phylink.c:(.text+0xcac): undefined reference to `netdev_printk' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_link_up': phylink.c:(.text+0xda4): undefined reference to `netif_carrier_on' arm-linux-gnueabi-ld: phylink.c:(.text+0xdcc): undefined reference to `phy_speed_to_str' arm-linux-gnueabi-ld: phylink.c:(.text+0xddc): undefined reference to `phy_duplex_to_str' arm-linux-gnueabi-ld: phylink.c:(.text+0xe30): undefined reference to `netdev_printk' arm-linux-gnueabi-ld: phylink.c:(.text+0xe54): undefined reference to `phy_speed_to_str' arm-linux-gnueabi-ld: phylink.c:(.text+0xe64): undefined reference to `phy_duplex_to_str' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_ethtool_get_pauseparam': phylink.c:(.text+0xfb8): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_disconnect_phy': phylink.c:(.text+0x1124): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x117c): undefined reference to `phy_disconnect' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_ethtool_get_wol': phylink.c:(.text+0x11a0): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x11c8): undefined reference to `phy_ethtool_get_wol' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_ethtool_set_wol': phylink.c:(.text+0x11ec): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x1208): undefined reference to `phy_ethtool_set_wol' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_ethtool_ksettings_get': phylink.c:(.text+0x12d8): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x12f4): undefined reference to `phy_ethtool_ksettings_get' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_ethtool_set_pauseparam': phylink.c:(.text+0x13b0): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x1474): undefined reference to `linkmode_set_pause' arm-linux-gnueabi-ld: phylink.c:(.text+0x1500): undefined reference to `phy_set_asym_pause' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_get_eee_err': phylink.c:(.text+0x157c): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x1594): undefined reference to `phy_get_eee_err' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_init_eee': phylink.c:(.text+0x15d8): undefined reference to `phy_init_eee' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_ethtool_get_eee': phylink.c:(.text+0x160c): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x1628): undefined reference to `phy_ethtool_get_eee' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_ethtool_set_eee': phylink.c:(.text+0x165c): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x1678): undefined reference to `phy_ethtool_set_eee' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_mii_c22_pcs_get_state': phylink.c:(.text+0x16c0): undefined reference to `mdiobus_read' arm-linux-gnueabi-ld: phylink.c:(.text+0x16d4): undefined reference to `mdiobus_read' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_mii_c45_pcs_get_state': phylink.c:(.text+0x1854): undefined reference to `mdiobus_read' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_mii_c22_pcs_set_advertisement': phylink.c:(.text+0x192c): undefined reference to `mdiobus_read' arm-linux-gnueabi-ld: phylink.c:(.text+0x1958): undefined reference to `mdiobus_write' arm-linux-gnueabi-ld: phylink.c:(.text+0x197c): undefined reference to `mdiobus_read' arm-linux-gnueabi-ld: phylink.c:(.text+0x19a8): undefined reference to `mdiobus_write' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_mii_c22_pcs_an_restart': phylink.c:(.text+0x19f0): undefined reference to `mdiobus_read' arm-linux-gnueabi-ld: phylink.c:(.text+0x1a14): undefined reference to `mdiobus_write' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_mii_emul_read': phylink.c:(.text+0x1a78): undefined reference to `swphy_read_reg' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_mii_ioctl': phylink.c:(.text+0x1ad0): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x1bf4): undefined reference to `mdiobus_read' arm-linux-gnueabi-ld: phylink.c:(.text+0x1cdc): undefined reference to `mdiobus_write' arm-linux-gnueabi-ld: phylink.c:(.text+0x1cf8): undefined reference to `phy_mii_ioctl' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_speed_down': phylink.c:(.text+0x1e4c): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x1e80): undefined reference to `phy_speed_down' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_speed_up': phylink.c:(.text+0x1ea8): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x1ed8): undefined reference to `phy_speed_up' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_mii_c22_pcs_config': phylink.c:(.text+0x1f50): undefined reference to `mdiobus_modify' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_stop': phylink.c:(.text+0x1f98): undefined reference to `rtnl_is_locked' arm-linux-gnueabi-ld: phylink.c:(.text+0x1fb0): undefined reference to `phy_stop' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_parse_mode': phylink.c:(.text+0x2128): undefined reference to `netdev_printk' arm-linux-gnueabi-ld: phylink.c:(.text+0x22f0): undefined reference to `netdev_printk' arm-linux-gnueabi-ld: phylink.c:(.text+0x2404): undefined reference to `netdev_printk' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_mac_change': phylink.c:(.text+0x25ac): undefined reference to `__dynamic_netdev_dbg' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_phy_change': phylink.c:(.text+0x264c): undefined reference to `phy_get_pause' arm-linux-gnueabi-ld: phylink.c:(.text+0x2764): undefined reference to `phy_speed_to_str' arm-linux-gnueabi-ld: phylink.c:(.text+0x2770): undefined reference to `phy_duplex_to_str' arm-linux-gnueabi-ld: phylink.c:(.text+0x2794): undefined reference to `__dynamic_netdev_dbg' arm-linux-gnueabi-ld: phylink.c:(.text+0x281c): undefined reference to `phy_speed_to_str' arm-linux-gnueabi-ld: phylink.c:(.text+0x2828): undefined reference to `phy_duplex_to_str' arm-linux-gnueabi-ld: drivers/net/phy/phylink.o: in function `phylink_start': phylink.c:(.text+0x2bc8): undefined reference to `rtnl_is_locked' Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for PHYLINK Depends on NETDEVICES Selected by - GKI_HIDDEN_ETHERNET_CONFIGS WARNING: unmet direct dependencies detected for HVC_DRIVER Depends on TTY Selected by - GKI_HIDDEN_VIRTUAL_CONFIGS WARNING: unmet direct dependencies detected for WEXT_PROC Depends on NET && WIRELESS && PROC_FS && WEXT_CORE Selected by - GKI_LEGACY_WEXT_ALLCONFIG WARNING: unmet direct dependencies detected for WEXT_PRIV Depends on NET && WIRELESS Selected by - GKI_LEGACY_WEXT_ALLCONFIG WARNING: unmet direct dependencies detected for PAGE_POOL Depends on NET Selected by - GKI_HIDDEN_NET_CONFIGS WARNING: unmet direct dependencies detected for WEXT_SPY Depends on NET && WIRELESS Selected by - GKI_LEGACY_WEXT_ALLCONFIG WARNING: unmet direct dependencies detected for WIRELESS_EXT Depends on NET && WIRELESS Selected by - GKI_LEGACY_WEXT_ALLCONFIG WARNING: unmet direct dependencies detected for WEXT_CORE Depends on NET && WIRELESS && (CFG80211_WEXT || WIRELESS_EXT Selected by - GKI_LEGACY_WEXT_ALLCONFIG WARNING: unmet direct dependencies detected for NET_PTP_CLASSIFY Depends on NET Selected by - GKI_HIDDEN_NET_CONFIGS WARNING: unmet direct dependencies detected for SND_VMASTER Depends on SOUND && !UML && SND Selected by - GKI_HIDDEN_SND_CONFIGS WARNING: unmet direct dependencies detected for SND_PCM_IEC958 Depends on SOUND && !UML && SND Selected by - GKI_HIDDEN_SND_SOC_CONFIGS WARNING: unmet direct dependencies detected for SND_JACK Depends on SOUND && !UML && SND Selected by - GKI_HIDDEN_SND_CONFIGS WARNING: unmet direct dependencies detected for SND_JACK_INPUT_DEV Depends on SOUND && !UML && SND && SND_JACK Selected by - GKI_HIDDEN_SND_CONFIGS WARNING: unmet direct dependencies detected for SND_PCM_ELD Depends on SOUND && !UML && SND Selected by - GKI_HIDDEN_SND_CONFIGS --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org