[kbuild-all] [android-common:android-4.19 1/2] drivers/scsi/ufs/ufshcd-crypto.c:250:26: warning: no previous prototype for function 'ufshcd_blk_crypto_mode_num_for_alg_dusize'

tree: https://android.googlesource.com/kernel/common android-4.19 head: 9e25a3c2aea5621981b002e8c9b45553dc44112a commit: b01c73ea7129745ce9d94b8d3b35663b716cd95b [1/2] BACKPORT: FROMLIST: Update Inline Encryption from v5 to v6 of patch series config: x86_64-randconfig-a013-20210119 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 22b68440e1647e16b5ee24b924986207173c02d1) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git remote add android-common https://android.googlesource.com/kernel/common git fetch --no-tags android-common android-4.19 git checkout b01c73ea7129745ce9d94b8d3b35663b716cd95b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): enum blk_crypto_mode_num ufshcd_blk_crypto_mode_num_for_alg_dusize( ^ drivers/scsi/ufs/ufshcd-crypto.c:250:1: note: declare 'static' if the function is not intended to be used outside of this translation unit enum blk_crypto_mode_num ufshcd_blk_crypto_mode_num_for_alg_dusize( ^ static 1 warning generated. drivers/scsi/ufs/ufshcd-crypto.c:272: warning: Function parameter or member 'ksm_ops' not described in 'ufshcd_hba_init_crypto_spec' vim +/ufshcd_blk_crypto_mode_num_for_alg_dusize +250 drivers/scsi/ufs/ufshcd-crypto.c 249 251 enum ufs_crypto_alg ufs_crypto_alg, 252 enum ufs_crypto_key_size key_size) 253 { 254 /* 255 * This is currently the only mode that UFS and blk-crypto both support. 256 */ 257 if (ufs_crypto_alg == UFS_CRYPTO_ALG_AES_XTS && 258 key_size == UFS_CRYPTO_KEY_SIZE_256) 259 return BLK_ENCRYPTION_MODE_AES_256_XTS; 260 261 return BLK_ENCRYPTION_MODE_INVALID; 262 } 263 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org