Re: [PATCH v4 7/8] crypto: arm64/polyval: Add PMULL accelerated implementation of POLYVAL

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

Hi Nathan,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on herbert-cryptodev-2.6/master]
[also build test WARNING on herbert-crypto-2.6/master linus/master v5.18-rc3 next-20220414]
[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/intel-lab-lkp/linux/commits/Nathan-Huckleberry/crypto-HCTR2-support/20220413-013255
base:   https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20220419/202204190447.5PXNH4Km-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 429cbac0390654f90bba18a41799464adf31a5ec)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/014203529f7aef5a93602c31f9fee3ba9843619c
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Nathan-Huckleberry/crypto-HCTR2-support/20220413-013255
        git checkout 014203529f7aef5a93602c31f9fee3ba9843619c
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/crypto/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> arch/arm64/crypto/polyval-ce-glue.c:229:33: warning: unused variable 'polyval_cpu_feature' [-Wunused-const-variable]
   static const struct cpu_feature polyval_cpu_feature[] = {
                                   ^
   1 warning generated.


vim +/polyval_cpu_feature +229 arch/arm64/crypto/polyval-ce-glue.c

   228	
 > 229	static const struct cpu_feature polyval_cpu_feature[] = {
   230		{ cpu_feature(PMULL) }, { }
   231	};
   232	MODULE_DEVICE_TABLE(cpu, polyval_cpu_feature);
   233	

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