[mptcp:export 1210/1266] net.c:undefined reference to `wwan_unregister_ops'

[mptcp:export 1210/1266] net.c:undefined reference to `wwan_unregister_ops'

[kernel test robot]

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tree:   https://github.com/multipath-tcp/mptcp_net-next.git export
head:   8f373ade1f521f6f7e554a9c8c7a2e9af10f84ad
commit: 13adac032982c61bb590669e8e87e51558917ca1 [1210/1266] net: mhi_net: Register wwan_ops for link creation
config: arm-randconfig-p001-20210613 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
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/multipath-tcp/mptcp_net-next/commit/13adac032982c61bb590669e8e87e51558917ca1
        git remote add mptcp https://github.com/multipath-tcp/mptcp_net-next.git
        git fetch --no-tags mptcp export
        git checkout 13adac032982c61bb590669e8e87e51558917ca1
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

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

All errors (new ones prefixed by >>):

   arch/arm/kernel/traps.o:(.text.fixup+0x8): relocation truncated to fit: R_ARM_JUMP24 against `.text.unlikely'
   arm-linux-gnueabi-ld: drivers/net/mhi/net.o: in function `mhi_net_remove':
>> net.c:(.text+0x900): undefined reference to `wwan_unregister_ops'
   arm-linux-gnueabi-ld: drivers/net/mhi/net.o: in function `mhi_net_probe':
>> net.c:(.text+0x970): undefined reference to `wwan_register_ops'
>> arm-linux-gnueabi-ld: net.c:(.text+0xa00): undefined reference to `wwan_unregister_ops'

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for WWAN_CORE
   Depends on NETDEVICES && WWAN
   Selected by
   - MHI_NET && NETDEVICES && NET_CORE && MHI_BUS

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

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