linux-kernel - [ebiggers:crypto-pending 7/7] arch/arm64/crypto/polyval-ce-glue.c:355:33: warning: unused variable 'polyval_cpu

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Date:   Wed, 16 Feb 2022 12:40:08 +0800
From:   kernel test robot <lkp@...el.com>
To:     Nathan Huckleberry <nhuck@...gle.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Eric Biggers <ebiggers@...gle.com>
Subject: [ebiggers:crypto-pending 7/7]
 arch/arm64/crypto/polyval-ce-glue.c:355:33: warning: unused variable
 'polyval_cpu_feature'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git crypto-pending
head:   67824d3cb5325de4264ad344174a7e4ea69e5303
commit: 67824d3cb5325de4264ad344174a7e4ea69e5303 [7/7] crypto: arm64/polyval: Add PMULL accelerated implementation of POLYVAL
config: arm64-randconfig-r033-20220216 (https://download.01.org/0day-ci/archive/20220216/202202161205.0mACsVya-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0e628a783b935c70c80815db6c061ec84f884af5)
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://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git/commit/?id=67824d3cb5325de4264ad344174a7e4ea69e5303
        git remote add ebiggers https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git
        git fetch --no-tags ebiggers crypto-pending
        git checkout 67824d3cb5325de4264ad344174a7e4ea69e5303
        # 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@...el.com>

All warnings (new ones prefixed by >>):

>> arch/arm64/crypto/polyval-ce-glue.c:355:33: warning: unused variable 'polyval_cpu_feature' [-Wunused-const-variable]
   static const struct cpu_feature polyval_cpu_feature[] = {
                                   ^
   1 warning generated.


vim +/polyval_cpu_feature +355 arch/arm64/crypto/polyval-ce-glue.c

   354	
 > 355	static const struct cpu_feature polyval_cpu_feature[] = {
   356		{ cpu_feature(PMULL) }, { }
   357	};
   358	MODULE_DEVICE_TABLE(cpu, polyval_cpu_feature);
   359	

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