Hi Sean,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   fb0ca446157a86b75502c1636b0d81e642fe6bf1
commit: af959b7b96b87aee13ed5b0041fc14ca2e72cc84 [2230/14098] iio: accel: fxls8962af: fix errata bug E3 - I2C burst reads
config: nios2-randconfig-p002-20210703 (attached as .config)
compiler: nios2-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/next/linux-next.git/commit/?id=af959b7b96b87aee13ed5b0041fc14ca2e72cc84
        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 af959b7b96b87aee13ed5b0041fc14ca2e72cc84
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 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@intel.com>

All errors (new ones prefixed by >>):

   nios2-linux-ld: drivers/iio/accel/fxls8962af-core.o: in function `fxls8962af_fifo_flush':
>> fxls8962af-core.c:(.text+0xc9c): undefined reference to `i2c_verify_client'
   fxls8962af-core.c:(.text+0xc9c): relocation truncated to fit: R_NIOS2_CALL26 against `i2c_verify_client'

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