tree:   git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.10.y
head:   376b7df95db951b7456af1e30d4ce451696190ee
commit: be58a6d2184f996fa51cb83c98426fd634606d63 [3521/3789] spi: cadence-qspi: Tune PHY to allow running at higher frequencies
config: openrisc-randconfig-r021-20210423 (attached as .config)
compiler: or1k-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
        git remote add ti git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git
        git fetch --no-tags ti ti-rt-linux-5.10.y
        git checkout be58a6d2184f996fa51cb83c98426fd634606d63
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=openrisc 

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 >>):

   or1k-linux-ld: drivers/spi/spi-cadence-quadspi.o: in function `cqspi_phy_check_pattern':
>> spi-cadence-quadspi.c:(.text+0xac0): undefined reference to `spi_mem_exec_op'
   spi-cadence-quadspi.c:(.text+0xac0): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `spi_mem_exec_op'

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