Hi Haren,

I love your patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on cryptodev/master crypto/master v5.12-rc6 next-20210409]
[cannot apply to scottwood/next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Haren-Myneni/Enable-VAS-and-NX-GZIP-support-on-powerVM/20210411-084631
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-allmodconfig (attached as .config)
compiler: powerpc64-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/0day-ci/linux/commit/8650d30be9c22ee8fdc59063b993bfbafe88a328
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Haren-Myneni/Enable-VAS-and-NX-GZIP-support-on-powerVM/20210411-084631
        git checkout 8650d30be9c22ee8fdc59063b993bfbafe88a328
        # 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 <lkp@intel.com>

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

>> ERROR: modpost: ".vas_unregister_api_pseries" [drivers/crypto/nx/nx-compress-pseries.ko] undefined!
>> ERROR: modpost: ".vas_register_api_pseries" [drivers/crypto/nx/nx-compress-pseries.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