[char-misc:char-misc-next 37/71] xtensa-linux-ld: bcm_vk_tty.c:undefined reference to `tty_flip_buffer_push'

[char-misc:char-misc-next 37/71] xtensa-linux-ld: bcm_vk_tty.c:undefined reference to `tty_flip_buffer_push'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git char-misc-next
head:   930c922a987a02936000f15ea62988b7a39c27f5
commit: 91ca10d6fa0720e35596c720e494d9c18624418a [37/71] misc: bcm-vk: add ttyVK support
config: xtensa-randconfig-r014-20210202 (attached as .config)
compiler: xtensa-linux-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://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git/commit/?id=91ca10d6fa0720e35596c720e494d9c18624418a
        git remote add char-misc https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
        git fetch --no-tags char-misc char-misc-next
        git checkout 91ca10d6fa0720e35596c720e494d9c18624418a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=xtensa 

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 >>):

   xtensa-linux-ld: drivers/misc/bcm-vk/bcm_vk_tty.o: in function `bcm_vk_tty_poll':
   bcm_vk_tty.c:(.text+0x220): undefined reference to `__tty_insert_flip_char'
>> xtensa-linux-ld: bcm_vk_tty.c:(.text+0x224): undefined reference to `tty_flip_buffer_push'
   xtensa-linux-ld: drivers/misc/bcm-vk/bcm_vk_tty.o: in function `bcm_vk_tty_wq_handler':
   bcm_vk_tty.c:(.text+0x314): undefined reference to `__tty_insert_flip_char'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x332): undefined reference to `tty_flip_buffer_push'
   xtensa-linux-ld: drivers/misc/bcm-vk/bcm_vk_tty.o: in function `bcm_vk_tty_irqhandler':
>> bcm_vk_tty.c:(.text+0x448): undefined reference to `tty_std_termios'
>> xtensa-linux-ld: bcm_vk_tty.c:(.text+0x480): undefined reference to `__tty_alloc_driver'
>> xtensa-linux-ld: bcm_vk_tty.c:(.text+0x484): undefined reference to `tty_set_operations'
>> xtensa-linux-ld: bcm_vk_tty.c:(.text+0x488): undefined reference to `tty_register_driver'
>> xtensa-linux-ld: bcm_vk_tty.c:(.text+0x48c): undefined reference to `tty_port_init'
>> xtensa-linux-ld: bcm_vk_tty.c:(.text+0x490): undefined reference to `tty_port_register_device'
>> xtensa-linux-ld: bcm_vk_tty.c:(.text+0x494): undefined reference to `tty_port_unregister_device'
>> xtensa-linux-ld: bcm_vk_tty.c:(.text+0x498): undefined reference to `tty_unregister_driver'
>> xtensa-linux-ld: bcm_vk_tty.c:(.text+0x49c): undefined reference to `put_tty_driver'
   xtensa-linux-ld: drivers/misc/bcm-vk/bcm_vk_tty.o: in function `bcm_vk_tty_init':
   bcm_vk_tty.c:(.text+0x4ca): undefined reference to `__tty_alloc_driver'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x50f): undefined reference to `tty_set_operations'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x517): undefined reference to `tty_register_driver'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x530): undefined reference to `tty_port_init'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x53e): undefined reference to `tty_port_register_device'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x55f): undefined reference to `tty_port_init'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x56f): undefined reference to `tty_port_register_device'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x5ea): undefined reference to `tty_port_unregister_device'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x5f8): undefined reference to `tty_unregister_driver'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x616): undefined reference to `put_tty_driver'
>> xtensa-linux-ld: bcm_vk_tty.c:(.text+0x640): undefined reference to `tty_port_destroy'
   xtensa-linux-ld: drivers/misc/bcm-vk/bcm_vk_tty.o: in function `bcm_vk_tty_exit':
   bcm_vk_tty.c:(.text+0x67c): undefined reference to `tty_port_unregister_device'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x684): undefined reference to `tty_port_destroy'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x696): undefined reference to `tty_port_unregister_device'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x69e): undefined reference to `tty_port_destroy'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x6a7): undefined reference to `tty_unregister_driver'
   xtensa-linux-ld: bcm_vk_tty.c:(.text+0x6c2): undefined reference to `put_tty_driver'

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

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