[linux-next:master 2700/3897] iosm_ipc_trace.c:undefined reference to `relay_file_operations'

[linux-next:master 2700/3897] iosm_ipc_trace.c:undefined reference to `relay_file_operations'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   f30a24ed97b401416118756fa35fbe5d28f999e3
commit: 00ef32565b9bd03c63ed944bc27878fbbc1c4e0a [2700/3897] net: wwan: iosm: device trace collection using relayfs
config: ia64-randconfig-r034-20211128 (https://download.01.org/0day-ci/archive/20211128/202111281808.bJpw6GJQ-lkp@intel.com/config)
compiler: ia64-linux-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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=00ef32565b9bd03c63ed944bc27878fbbc1c4e0a
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 00ef32565b9bd03c63ed944bc27878fbbc1c4e0a
        # 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=ia64 SHELL=/bin/bash

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 >>):

   ia64-linux-ld: drivers/net/wwan/iosm/iosm_ipc_trace.o: in function `ipc_trace_create_buf_file_handler':
>> iosm_ipc_trace.c:(.text+0x1): undefined reference to `relay_file_operations'
>> ia64-linux-ld: iosm_ipc_trace.c:(.text+0x31): undefined reference to `relay_file_operations'
   ia64-linux-ld: drivers/net/wwan/iosm/iosm_ipc_trace.o: in function `ipc_trace_ctrl_file_write':
>> iosm_ipc_trace.c:(.text+0x232): undefined reference to `relay_flush'
   ia64-linux-ld: drivers/net/wwan/iosm/iosm_ipc_trace.o: in function `ipc_trace_subbuf_start_handler':
>> iosm_ipc_trace.c:(.text+0x372): undefined reference to `relay_buf_full'
   ia64-linux-ld: drivers/net/wwan/iosm/iosm_ipc_trace.o: in function `ipc_trace_port_rx':
>> iosm_ipc_trace.c:(.text+0x4e2): undefined reference to `relay_switch_subbuf'
   ia64-linux-ld: drivers/net/wwan/iosm/iosm_ipc_trace.o: in function `ipc_trace_init':
>> iosm_ipc_trace.c:(.text+0x732): undefined reference to `relay_open'
   ia64-linux-ld: drivers/net/wwan/iosm/iosm_ipc_trace.o: in function `ipc_trace_deinit':
>> iosm_ipc_trace.c:(.text+0x792): undefined reference to `relay_close'

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