[dhowells-fs:keys-pqc 2/8] crypto/ml_dsa/dilithium_polyvec_c.h:41:33: sparse: sparse: incorrect type in argument 3 (different base types)

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git keys-pqc
head:   445b842b50b449ceb18cbbfc72dc28bc25fa8b08
commit: 7ae730f92709e7f54f560e4ca88b10ef1aeb6c22 [2/8] crypto: Add ML-DSA/Dilithium verify support
config: mips-randconfig-r134-20251110 (https://download.01.org/0day-ci/archive/20251111/202511110107.cresrLdf-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 93d445cba39f4dd3dcda4fa1433eca825cf8fc09)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251111/202511110107.cresrLdf-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511110107.cresrLdf-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   crypto/ml_dsa/dilithium_44.c: note: in included file (through crypto/ml_dsa/dilithium_signature_c.c):
>> crypto/ml_dsa/dilithium_polyvec_c.h:41:33: sparse: sparse: incorrect type in argument 3 (different base types) @@     expected unsigned short [addressable] [usertype] nonce @@     got restricted __le16 [usertype] @@
   crypto/ml_dsa/dilithium_polyvec_c.h:41:33: sparse:     expected unsigned short [addressable] [usertype] nonce
   crypto/ml_dsa/dilithium_polyvec_c.h:41:33: sparse:     got restricted __le16 [usertype]
>> crypto/ml_dsa/dilithium_polyvec_c.h:41:33: sparse: sparse: incorrect type in argument 3 (different base types) @@     expected unsigned short [addressable] [usertype] nonce @@     got restricted __le16 [usertype] @@
   crypto/ml_dsa/dilithium_polyvec_c.h:41:33: sparse:     expected unsigned short [addressable] [usertype] nonce
   crypto/ml_dsa/dilithium_polyvec_c.h:41:33: sparse:     got restricted __le16 [usertype]

vim +41 crypto/ml_dsa/dilithium_polyvec_c.h

    21	
    22	/*
    23	 * @brief expand_mat - Implementation of ExpandA. Generates matrix A with
    24	 *		       uniformly random coefficients a_{i,j} by performing
    25	 *		       rejection sampling on the output stream of
    26	 *		       SHAKE128(rho|j|i).
    27	 *
    28	 * @param [out] mat output matrix
    29	 * @param [in] rho byte array containing seed rho
    30	 */
    31	static inline void
    32	polyvec_matrix_expand(polyvecl mat[DILITHIUM_K],
    33			      const uint8_t rho[DILITHIUM_SEEDBYTES], void *ws_buf)
    34	{
    35		unsigned int i, j;
    36	
    37		for (i = 0; i < DILITHIUM_K; ++i)
    38			for (j = 0; j < DILITHIUM_L; ++j)
    39				poly_uniform(
    40					&mat[i].vec[j], rho,
  > 41					cpu_to_le16((uint16_t)(i << 8) + (uint16_t)j),
    42					ws_buf);
    43	}
    44	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki