[xlnx:xlnx_rebase_v5.10 724/1756] ERROR: modpost: "update_stripe" [drivers/spi/spi-zynqmp-gqspi.ko] undefined!

tree:   https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.10
head:   f6f032f82f0a13def702a0154df535db88f43391
commit: 5d37ab2cf69a5d4367f49fca798d78e4be66a43b [724/1756] spi: Update ZynqMP and Versal QSPI controller driver
config: powerpc-randconfig-r024-20210713 (attached as .config)
compiler: powerpc-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://github.com/Xilinx/linux-xlnx/commit/5d37ab2cf69a5d4367f49fca798d78e4be66a43b
        git remote add xlnx https://github.com/Xilinx/linux-xlnx
        git fetch --no-tags xlnx xlnx_rebase_v5.10
        git checkout 5d37ab2cf69a5d4367f49fca798d78e4be66a43b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc 

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

All errors (new ones prefixed by >>, old ones prefixed by <<):

quoted

ERROR: modpost: "update_stripe" [drivers/spi/spi-zynqmp-gqspi.ko] undefined!

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