[cryptodev:master 5/15] drivers/crypto/inside-secure/safexcel_hash.c:1299:25: sparse: cast truncates bits from constant value (6a09e667f3bcc908 becomes f3bcc908)

[kbuild test robot]

tree:   
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
head:   38641b83ebc54635151810eeef00b61da3097952
commit: b460edb6230ac2877b0d176b9122736fed6f3c6e [5/15] crypto: inside-secure - 
sha512 support
reproduce:
        # apt-get install sparse
        git checkout b460edb6230ac2877b0d176b9122736fed6f3c6e
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

   include/linux/slab.h:631:13: sparse: undefined identifier 
'__builtin_mul_overflow'
   drivers/crypto/inside-secure/safexcel_hash.c:1005:45: sparse: cast to 
restricted __le32
   drivers/crypto/inside-secure/safexcel_hash.c:1006:45: sparse: cast to 
restricted __le32
   include/linux/slab.h:631:13: sparse: call with no type!
>> drivers/crypto/inside-secure/safexcel_hash.c:1299:25: sparse: cast truncates 
>> bits from constant value (6a09e667f3bcc908 becomes f3bcc908)
>> drivers/crypto/inside-secure/safexcel_hash.c:1301:25: sparse: cast truncates 
>> bits from constant value (bb67ae8584caa73b becomes 84caa73b)
>> drivers/crypto/inside-secure/safexcel_hash.c:1303:25: sparse: cast truncates 
>> bits from constant value (3c6ef372fe94f82b becomes fe94f82b)
>> drivers/crypto/inside-secure/safexcel_hash.c:1305:25: sparse: cast truncates 
>> bits from constant value (a54ff53a5f1d36f1 becomes 5f1d36f1)
>> drivers/crypto/inside-secure/safexcel_hash.c:1307:25: sparse: cast truncates 
>> bits from constant value (510e527fade682d1 becomes ade682d1)
>> drivers/crypto/inside-secure/safexcel_hash.c:1309:26: sparse: cast truncates 
>> bits from constant value (9b05688c2b3e6c1f becomes 2b3e6c1f)
>> drivers/crypto/inside-secure/safexcel_hash.c:1311:26: sparse: cast truncates 
>> bits from constant value (1f83d9abfb41bd6b becomes fb41bd6b)
>> drivers/crypto/inside-secure/safexcel_hash.c:1313:26: sparse: cast truncates 
>> bits from constant value (5be0cd19137e2179 becomes 137e2179)

vim +1299 drivers/crypto/inside-secure/safexcel_hash.c

  1291  
  1292  static int safexcel_sha512_init(struct ahash_request *areq)
  1293  {
  1294          struct safexcel_ahash_ctx *ctx = 
crypto_ahash_ctx(crypto_ahash_reqtfm(areq));
  1295          struct safexcel_ahash_req *req = ahash_request_ctx(areq);
  1296  
  1297          memset(req, 0, sizeof(*req));
  1298  
> 1299          req->state[0] = lower_32_bits(SHA512_H0);
  1300          req->state[1] = upper_32_bits(SHA512_H0);
> 1301          req->state[2] = lower_32_bits(SHA512_H1);
  1302          req->state[3] = upper_32_bits(SHA512_H1);
> 1303          req->state[4] = lower_32_bits(SHA512_H2);
  1304          req->state[5] = upper_32_bits(SHA512_H2);
> 1305          req->state[6] = lower_32_bits(SHA512_H3);
  1306          req->state[7] = upper_32_bits(SHA512_H3);
> 1307          req->state[8] = lower_32_bits(SHA512_H4);
  1308          req->state[9] = upper_32_bits(SHA512_H4);
> 1309          req->state[10] = lower_32_bits(SHA512_H5);
  1310          req->state[11] = upper_32_bits(SHA512_H5);
> 1311          req->state[12] = lower_32_bits(SHA512_H6);
  1312          req->state[13] = upper_32_bits(SHA512_H6);
> 1313          req->state[14] = lower_32_bits(SHA512_H7);
  1314          req->state[15] = upper_32_bits(SHA512_H7);
  1315  
  1316          ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA512;
  1317          req->digest = CONTEXT_CONTROL_DIGEST_PRECOMPUTED;
  1318          req->state_sz = SHA512_DIGEST_SIZE;
  1319  
  1320          return 0;
  1321  }
  1322  

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