[ammarfaizi2-block:google/android/kernel/common/android12-trusty-5.10 5854/5872] ERROR: modpost: "trusty_dma_buf_get_ffa_tag" [drivers/trusty/trusty-ipc.ko] undefined!

[kernel test robot <lkp@intel.com>]

Hi Matthew,

FYI, the error/warning still remains.

tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android12-trusty-5.10
head:   07055bfd3d810d41a38354693dfaa55a6f8c0025
commit: 988b52b392a13c1b710e9ffdc5de9f933de77551 [5854/5872] ANDROID: trusty: Support setting FF-A Tag
config: arm-allmodconfig (https://download.01.org/0day-ci/archive/20220330/202203301644.1prdbsrp-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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/ammarfaizi2/linux-block/commit/988b52b392a13c1b710e9ffdc5de9f933de77551
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android12-trusty-5.10
        git checkout 988b52b392a13c1b710e9ffdc5de9f933de77551
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm 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 >>, old ones prefixed by <<):

>> ERROR: modpost: "trusty_dma_buf_get_ffa_tag" [drivers/trusty/trusty-ipc.ko] undefined!

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp