Hi Jason,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.9 next-20161214]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Jason-A-Donenfeld/siphash-add-cryptographically-secure-hashtable-function/20161215-041458
config: i386-randconfig-i1-201650 (attached as .config)
compiler: gcc-4.8 (Debian 4.8.4-1) 4.8.4
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   lib/test_siphash.c: In function 'siphash_test_init':
>> lib/test_siphash.c:49:2: error: requested alignment is not an integer constant
     u8 in[64] __aligned(SIPHASH24_ALIGNMENT);
     ^
   lib/test_siphash.c:50:2: error: requested alignment is not an integer constant
     u8 k[16] __aligned(SIPHASH24_ALIGNMENT);
     ^

vim +49 lib/test_siphash.c

    43		0x6ca4ecb15c5f91e1ULL, 0x9f626da15c9625f3ULL, 0xe51b38608ef25f57ULL,
    44		0x958a324ceb064572ULL
    45	};
    46	
    47	static int __init siphash_test_init(void)
    48	{
  > 49		u8 in[64] __aligned(SIPHASH24_ALIGNMENT);
    50		u8 k[16] __aligned(SIPHASH24_ALIGNMENT);
    51		u8 in_unaligned[65];
    52		u8 k_unaligned[65];

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