Re: [PATCH v2 1/2] crypto: hisilicon - Add HiSilicon ADVCA Subsystem

[kernel test robot]

Hi David,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 9a48d604672220545d209e9996c2a1edbb5637f6]

url:    https://github.com/intel-lab-lkp/linux/commits/David-Yang/crypto-hisilicon-Add-HiSilicon-ADVCA-Subsystem/20230513-154545
base:   9a48d604672220545d209e9996c2a1edbb5637f6
patch link:    https://lore.kernel.org/r/20230513074339.266879-2-mmyangfl%40gmail.com
patch subject: [PATCH v2 1/2] crypto: hisilicon - Add HiSilicon ADVCA Subsystem
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20230513/202305131630.Wt74Rpda-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 12.1.0
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/intel-lab-lkp/linux/commit/6f6cb7dd5da91063c560d2d252104268ffac785b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review David-Yang/crypto-hisilicon-Add-HiSilicon-ADVCA-Subsystem/20230513-154545
        git checkout 6f6cb7dd5da91063c560d2d252104268ffac785b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash drivers/crypto/hisilicon/advca/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202305131630.Wt74Rpda-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/crypto/hisilicon/advca/hisi-advca-muc.c:77:41: warning: unsigned conversion from 'int' to 'unsigned char:2' changes value from '4' to '0' [-Woverflow]
      77 | #define  MUC_MODE_CTR                   4  /* not for DES */
         |                                         ^
   drivers/crypto/hisilicon/advca/hisi-advca-muc.c:1283:25: note: in expansion of macro 'MUC_MODE_CTR'
    1283 |                 .mode = MUC_MODE_##_MODE, \
         |                         ^~~~~~~~~
   drivers/crypto/hisilicon/advca/hisi-advca-muc.c:1298:9: note: in expansion of macro 'hica_muc_tmpl_define'
    1298 |         hica_muc_tmpl_define(AES, _MODE, aes, _mode, AES_MIN_KEY_SIZE, \
         |         ^~~~~~~~~~~~~~~~~~~~
   drivers/crypto/hisilicon/advca/hisi-advca-muc.c:1311:9: note: in expansion of macro 'hica_muc_tmpl_define_aes'
    1311 |         hica_muc_tmpl_define_aes(CTR, ctr),
         |         ^~~~~~~~~~~~~~~~~~~~~~~~


vim +77 drivers/crypto/hisilicon/advca/hisi-advca-muc.c

    69	
    70	/* for CTRL reg */
    71	#define MUC_DECRYPT		BIT(0)
    72	#define MUC_MODE		GENMASK(3, 1)  /* other: as 0 */
    73	#define  MUC_MODE_ECB			0
    74	#define  MUC_MODE_CBC			1
    75	#define  MUC_MODE_CFB			2
    76	#define  MUC_MODE_OFB			3
  > 77	#define  MUC_MODE_CTR			4  /* not for DES */
    78	#define MUC_ALG			GENMASK(5, 4)  /* other: as 0 */
    79	#define  MUC_ALG_DES			0
    80	#define  MUC_ALG_DES3_EDE		1
    81	#define  MUC_ALG_AES			2
    82	#define MUC_WIDTH		GENMASK(7, 6)  /* other: as 0 */
    83	#define  MUC_WIDTH_BLOCK		0
    84	#define  MUC_WIDTH_8B			1
    85	#define  MUC_WIDTH_1B			2
    86	#define MUC_CHAN0_IV_CHANGE	BIT(8)
    87	#define MUC_KEY			GENMASK(10, 9)  /* other: as 0 */
    88	#define  MUC_KEY_AES_128B		0
    89	#define  MUC_KEY_AES_192B		1
    90	#define  MUC_KEY_AES_256B		2
    91	#define  MUC_KEY_DES			0
    92	#define  MUC_KEY_DES3_EDE_3KEY		0
    93	#define  MUC_KEY_DES3_EDE_2KEY		3
    94	#define MUC_KEY_FROM_MKL	BIT(13)
    95	#define MUC_KEY_ID		GENMASK(16, 14)
    96	#define MUC_WEIGHT		GENMASK(31, 22)
    97	

-- 
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https://github.com/intel/lkp-tests