linux-kernel - ld.lld: error: undefined symbol: ptp_clock

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Message-ID: <202111260440.QjqOIrAz-lkp@intel.com>
Date:   Fri, 26 Nov 2021 05:00:44 +0800
From:   kernel test robot <lkp@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        Vladimir Oltean <vladimir.oltean@....com>
Subject: ld.lld: error: undefined symbol: ptp_clock_register

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5f53fa508db098c9d372423a6dac31c8a5679cdf
commit: e5f31552674e88bff3a4e3ca3e5357668b5f2973 ethernet: fix PTP_1588_CLOCK dependencies
date:   3 months ago
config: x86_64-buildonly-randconfig-r005-20211118 (https://download.01.org/0day-ci/archive/20211126/202111260440.QjqOIrAz-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c46becf500df2a7fb4b4fce16178a036c344315a)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e5f31552674e88bff3a4e3ca3e5357668b5f2973
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout e5f31552674e88bff3a4e3ca3e5357668b5f2973
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: ptp_clock_register
   >>> referenced by hv_util.c
   >>> hv/hv_util.o:(hv_timesync_init) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: ptp_clock_unregister
   >>> referenced by hv_util.c
   >>> hv/hv_util.o:(hv_timesync_deinit) in archive drivers/built-in.a

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org