[l1k:smsc95xx_5.17 578/888] panel-sitronix-st7701.c:undefined reference to `spi_sync'

[kernel test robot]

tree:   https://github.com/l1k/linux smsc95xx_5.17
head:   240f56c27361c195cd502d95aba51c6b8e5b808c
commit: 72c355c6c7656888e6124c1356c3f68cb9cf5b35 [578/888] drm/panel/panel-sitronix-st7701: Support SPI config and RGB data
config: nios2-randconfig-s032-20220408 (https://download.01.org/0day-ci/archive/20220409/202204090901.hb9uqZRT-lkp@xxxxxxxxx/config)
compiler: nios2-linux-gcc (GCC) 11.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://github.com/l1k/linux/commit/72c355c6c7656888e6124c1356c3f68cb9cf5b35
        git remote add l1k https://github.com/l1k/linux
        git fetch --no-tags l1k smsc95xx_5.17
        git checkout 72c355c6c7656888e6124c1356c3f68cb9cf5b35
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=nios2 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   nios2-linux-ld: drivers/gpu/drm/panel/panel-sitronix-st7701.o: in function `st7701_disable.part.0':
>> panel-sitronix-st7701.c:(.text+0x230): undefined reference to `spi_sync'
   panel-sitronix-st7701.c:(.text+0x230): relocation truncated to fit: R_NIOS2_CALL26 against `spi_sync'
   nios2-linux-ld: drivers/gpu/drm/panel/panel-sitronix-st7701.o: in function `st7701_enable.part.0':
   panel-sitronix-st7701.c:(.text+0x2a0): undefined reference to `spi_sync'
   panel-sitronix-st7701.c:(.text+0x2a0): relocation truncated to fit: R_NIOS2_CALL26 against `spi_sync'
   nios2-linux-ld: drivers/gpu/drm/panel/panel-sitronix-st7701.o: in function `txw210001b0_init_sequence':
   panel-sitronix-st7701.c:(.text+0x3a4): undefined reference to `spi_sync'
   panel-sitronix-st7701.c:(.text+0x3a4): relocation truncated to fit: R_NIOS2_CALL26 against `spi_sync'
>> nios2-linux-ld: panel-sitronix-st7701.c:(.text+0x408): undefined reference to `spi_sync'
   panel-sitronix-st7701.c:(.text+0x408): relocation truncated to fit: R_NIOS2_CALL26 against `spi_sync'
   nios2-linux-ld: panel-sitronix-st7701.c:(.text+0x45c): undefined reference to `spi_sync'
   panel-sitronix-st7701.c:(.text+0x45c): relocation truncated to fit: R_NIOS2_CALL26 against `spi_sync'
   nios2-linux-ld: drivers/gpu/drm/panel/panel-sitronix-st7701.o:panel-sitronix-st7701.c:(.text+0x4b0): more undefined references to `spi_sync' follow
   drivers/gpu/drm/panel/panel-sitronix-st7701.o: in function `txw210001b0_init_sequence':
   panel-sitronix-st7701.c:(.text+0x4b0): relocation truncated to fit: R_NIOS2_CALL26 against `spi_sync'
   panel-sitronix-st7701.c:(.text+0x500): relocation truncated to fit: R_NIOS2_CALL26 against `spi_sync'
   panel-sitronix-st7701.c:(.text+0x54c): relocation truncated to fit: R_NIOS2_CALL26 against `spi_sync'
   panel-sitronix-st7701.c:(.text+0x59c): relocation truncated to fit: R_NIOS2_CALL26 against `spi_sync'
   panel-sitronix-st7701.c:(.text+0x5ec): relocation truncated to fit: R_NIOS2_CALL26 against `spi_sync'
   panel-sitronix-st7701.c:(.text+0x63c): additional relocation overflows omitted from the output
   nios2-linux-ld: drivers/gpu/drm/panel/panel-sitronix-st7701.o: in function `st7701_spi_probe':
>> panel-sitronix-st7701.c:(.text+0x116c): undefined reference to `spi_setup'
   nios2-linux-ld: drivers/gpu/drm/panel/panel-sitronix-st7701.o: in function `st7701_unprepare':
   panel-sitronix-st7701.c:(.text+0x134c): undefined reference to `spi_sync'
   nios2-linux-ld: drivers/gpu/drm/panel/panel-sitronix-st7701.o: in function `panel_st7701_init':
>> panel-sitronix-st7701.c:(.init.text+0x18): undefined reference to `__spi_register_driver'

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