[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'

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

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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@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/scsi/ufs/ufshcd-crypto.c:250:26: warning: no previous prototype for function 'ufshcd_blk_crypto_mode_num_for_alg_dusize' [-Wmissing-prototypes]
   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	
 > 250	enum blk_crypto_mode_num ufshcd_blk_crypto_mode_num_for_alg_dusize(
   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(a)lists.01.org

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