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crc32: add self-test code for crc32c
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Add self-test code for crc32c.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: Bob Pearson <rpearson@systemfabricworks.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Darrick J. Wong authored and Linus Torvalds committed Mar 23, 2012
1 parent 6a0962b commit 577eba9
Showing 1 changed file with 261 additions and 102 deletions.
363 changes: 261 additions & 102 deletions lib/crc32.c
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Original file line number Diff line number Diff line change
Expand Up @@ -782,113 +782,265 @@ static struct crc_test {
u32 length; /* random 11 bit length of test */
u32 crc_le; /* expected crc32_le result */
u32 crc_be; /* expected crc32_be result */
u32 crc32c_le; /* expected crc32c_le result */
} test[] =
{
{0x674bf11d, 0x00000038, 0x00000542, 0x0af6d466, 0xd8b6e4c1},
{0x35c672c6, 0x0000003a, 0x000001aa, 0xc6d3dfba, 0x28aaf3ad},
{0x496da28e, 0x00000039, 0x000005af, 0xd933660f, 0x5d57e81f},
{0x09a9b90e, 0x00000027, 0x000001f8, 0xb45fe007, 0xf45fca9a},
{0xdc97e5a9, 0x00000025, 0x000003b6, 0xf81a3562, 0xe0126ba2},
{0x47c58900, 0x0000000a, 0x000000b9, 0x8e58eccf, 0xf3afc793},
{0x292561e8, 0x0000000c, 0x00000403, 0xa2ba8aaf, 0x0b797aed},
{0x415037f6, 0x00000003, 0x00000676, 0xa17d52e8, 0x7f0fdf35},
{0x3466e707, 0x00000026, 0x00000042, 0x258319be, 0x75c484a2},
{0xafd1281b, 0x00000023, 0x000002ee, 0x4428eaf8, 0x06c7ad10},
{0xd3857b18, 0x00000028, 0x000004a2, 0x5c430821, 0xb062b7cb},
{0x1d825a8f, 0x0000002b, 0x0000050b, 0xd2c45f0c, 0xd68634e0},
{0x5033e3bc, 0x0000000b, 0x00000078, 0xa3ea4113, 0xac6d31fb},
{0x94f1fb5e, 0x0000000f, 0x000003a2, 0xfbfc50b1, 0x3cfe50ed},
{0xc9a0fe14, 0x00000009, 0x00000473, 0x5fb61894, 0x87070591},
{0x88a034b1, 0x0000001c, 0x000005ad, 0xc1b16053, 0x46f95c67},
{0xf0f72239, 0x00000020, 0x0000026d, 0xa6fa58f3, 0xf8c2c1dd},
{0xcc20a5e3, 0x0000003b, 0x0000067a, 0x7740185a, 0x308b979a},
{0xce589c95, 0x0000002b, 0x00000641, 0xd055e987, 0x40aae25b},
{0x78edc885, 0x00000035, 0x000005be, 0xa39cb14b, 0x035b0d1f},
{0x9d40a377, 0x0000003b, 0x00000038, 0x1f47ccd2, 0x197fbc9d},
{0x703d0e01, 0x0000003c, 0x000006f1, 0x88735e7c, 0xfed57c5a},
{0x776bf505, 0x0000000f, 0x000005b2, 0x5cc4fc01, 0xf32efb97},
{0x4a3e7854, 0x00000027, 0x000004b8, 0x8d923c82, 0x0cbfb4a2},
{0x209172dd, 0x0000003b, 0x00000356, 0xb89e9c2b, 0xd7868138},
{0x3ba4cc5b, 0x0000002f, 0x00000203, 0xe51601a9, 0x5b2a1032},
{0xfc62f297, 0x00000000, 0x00000079, 0x71a8e1a2, 0x5d88685f},
{0x64280b8b, 0x00000016, 0x000007ab, 0x0fa7a30c, 0xda3a455f},
{0x97dd724b, 0x00000033, 0x000007ad, 0x5788b2f4, 0xd7326d32},
{0x61394b52, 0x00000035, 0x00000571, 0xc66525f1, 0xcabe7fef},
{0x29b4faff, 0x00000024, 0x0000006e, 0xca13751e, 0x993648e0},
{0x29bfb1dc, 0x0000000b, 0x00000244, 0x436c43f7, 0x429f7a59},
{0x86ae934b, 0x00000035, 0x00000104, 0x0760ec93, 0x9cf7d0f4},
{0xc4c1024e, 0x0000002e, 0x000006b1, 0x6516a3ec, 0x19321f9c},
{0x3287a80a, 0x00000026, 0x00000496, 0x0b257eb1, 0x754ebd51},
{0xa4db423e, 0x00000023, 0x0000045d, 0x9b3a66dc, 0x873e9f11},
{0x7a1078df, 0x00000015, 0x0000014a, 0x8c2484c5, 0x6a628659},
{0x6048bd5b, 0x00000006, 0x0000006a, 0x897e3559, 0xac9961af},
{0xd8f9ea20, 0x0000003d, 0x00000277, 0x60eb905b, 0xed2aaf99},
{0xea5ec3b4, 0x0000002a, 0x000004fe, 0x869965dc, 0x6c1f833b},
{0x2dfb005d, 0x00000016, 0x00000345, 0x6a3b117e, 0xf05e8521},
{0x5a214ade, 0x00000020, 0x000005b6, 0x467f70be, 0xcb22ccd3},
{0xf0ab9cca, 0x00000032, 0x00000515, 0xed223df3, 0x7f3ef01d},
{0x91b444f9, 0x0000002e, 0x000007f8, 0x84e9a983, 0x5676756f},
{0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xba638c4c, 0x3f42047b},
{0xd824d1bb, 0x0000003a, 0x000007b5, 0x6288653b, 0x3a3ebea0},
{0x0470180c, 0x00000034, 0x000001f0, 0x9d5b80d6, 0x3de08195},
{0xffaa3a3f, 0x00000036, 0x00000299, 0xf3a82ab8, 0x53e0c13d},
{0x6406cfeb, 0x00000023, 0x00000600, 0xa920b8e8, 0xe4e2acf4},
{0xb24aaa38, 0x0000003e, 0x000004a1, 0x657cc328, 0x5077b2c3},
{0x58b2ab7c, 0x00000039, 0x000002b4, 0x3a17ee7e, 0x9dcb3643},
{0x3db85970, 0x00000006, 0x000002b6, 0x95268b59, 0xb9812c10},
{0x857830c5, 0x00000003, 0x00000590, 0x4ef439d5, 0xf042161d},
{0xe1fcd978, 0x0000003e, 0x000007d8, 0xae8d8699, 0xce0a1ef5},
{0xb982a768, 0x00000016, 0x000006e0, 0x62fad3df, 0x5f8a067b},
{0x1d581ce8, 0x0000001e, 0x0000058b, 0xf0f5da53, 0x26e39eee},
{0x2456719b, 0x00000025, 0x00000503, 0x4296ac64, 0xd50e4c14},
{0xfae6d8f2, 0x00000000, 0x0000055d, 0x057fdf2e, 0x2a31391a},
{0xcba828e3, 0x00000039, 0x000002ce, 0xe3f22351, 0x8f00877b},
{0x13d25952, 0x0000000a, 0x0000072d, 0x76d4b4cc, 0x5eb67ec3},
{0x0342be3f, 0x00000015, 0x00000599, 0xec75d9f1, 0x9d4d2826},
{0xeaa344e0, 0x00000014, 0x000004d8, 0x72a4c981, 0x2064ea06},
{0xbbb52021, 0x0000003b, 0x00000272, 0x04af99fc, 0xaf042d35},
{0xb66384dc, 0x0000001d, 0x000007fc, 0xd7629116, 0x782bd801},
{0x616c01b6, 0x00000022, 0x000002c8, 0x5b1dab30, 0x783ce7d2},
{0xce2bdaad, 0x00000016, 0x0000062a, 0x932535c8, 0x3f02926d},
{0x00fe84d7, 0x00000005, 0x00000205, 0x850e50aa, 0x753d649c},
{0xbebdcb4c, 0x00000006, 0x0000055d, 0xbeaa37a2, 0x2d8c9eba},
{0xd8b1a02a, 0x00000010, 0x00000387, 0x5017d2fc, 0x503541a5},
{0x3b96cad2, 0x00000036, 0x00000347, 0x1d2372ae, 0x926cd90b},
{0xc94c1ed7, 0x00000005, 0x0000038b, 0x9e9fdb22, 0x144a9178},
{0x1aad454e, 0x00000025, 0x000002b2, 0xc3f6315c, 0x5c7a35b3},
{0xa4fec9a6, 0x00000000, 0x000006d6, 0x90be5080, 0xa4107605},
{0x1bbe71e2, 0x0000001f, 0x000002fd, 0x4e504c3b, 0x284ccaf1},
{0x4201c7e4, 0x00000002, 0x000002b7, 0x7822e3f9, 0x0cc912a9},
{0x23fddc96, 0x00000003, 0x00000627, 0x8a385125, 0x07767e78},
{0xd82ba25c, 0x00000016, 0x0000063e, 0x98e4148a, 0x283330c9},
{0x786f2032, 0x0000002d, 0x0000060f, 0xf201600a, 0xf561bfcd},
{0xfebe4e1f, 0x0000002a, 0x000004f2, 0x95e51961, 0xfd80dcab},
{0x1a6e0a39, 0x00000008, 0x00000672, 0x8af6c2a5, 0x78dd84cb},
{0x56000ab8, 0x0000000e, 0x000000e5, 0x36bacb8f, 0x22ee1f77},
{0x4717fe0c, 0x00000000, 0x000006ec, 0x8439f342, 0x5c8e03da},
{0xd5d5d68e, 0x0000003c, 0x000003a3, 0x46fff083, 0x177d1b39},
{0xc25dd6c6, 0x00000024, 0x000006c0, 0x5ceb8eb4, 0x892b0d16},
{0xe9b11300, 0x00000023, 0x00000683, 0x07a5d59a, 0x6c6a3208},
{0x95cd285e, 0x00000001, 0x00000047, 0x7b3a4368, 0x0202c07e},
{0xd9245a25, 0x0000001e, 0x000003a6, 0xd33c1841, 0x1936c0d5},
{0x103279db, 0x00000006, 0x0000039b, 0xca09b8a0, 0x77d62892},
{0x1cba3172, 0x00000027, 0x000001c8, 0xcb377194, 0xebe682db},
{0x8f613739, 0x0000000c, 0x000001df, 0xb4b0bc87, 0x7710bd43},
{0x1c6aa90d, 0x0000001b, 0x0000053c, 0x70559245, 0xda7894ac},
{0xaabe5b93, 0x0000003d, 0x00000715, 0xcdbf42fa, 0x0c3b99e7},
{0xf15dd038, 0x00000006, 0x000006db, 0x6e104aea, 0x8d5967f2},
{0x584dd49c, 0x00000020, 0x000007bc, 0x36b6cfd6, 0xad4e23b2},
{0x5d8c9506, 0x00000020, 0x00000470, 0x4c62378e, 0x31d92640},
{0xb80d17b0, 0x00000032, 0x00000346, 0x22a5bb88, 0x9a7ec89f},
{0xdaf0592e, 0x00000023, 0x000007b0, 0x3cab3f99, 0x9b1fdd99},
{0x4793cc85, 0x0000000d, 0x00000706, 0xe82e04f6, 0xed3db6b7},
{0x82ebf64e, 0x00000009, 0x000007c3, 0x69d590a9, 0x9efa8499},
{0xb18a0319, 0x00000026, 0x000007db, 0x1cf98dcc, 0x8fa9ad6a},
{0x674bf11d, 0x00000038, 0x00000542, 0x0af6d466, 0xd8b6e4c1,
0xf6e93d6c},
{0x35c672c6, 0x0000003a, 0x000001aa, 0xc6d3dfba, 0x28aaf3ad,
0x0fe92aca},
{0x496da28e, 0x00000039, 0x000005af, 0xd933660f, 0x5d57e81f,
0x52e1ebb8},
{0x09a9b90e, 0x00000027, 0x000001f8, 0xb45fe007, 0xf45fca9a,
0x0798af9a},
{0xdc97e5a9, 0x00000025, 0x000003b6, 0xf81a3562, 0xe0126ba2,
0x18eb3152},
{0x47c58900, 0x0000000a, 0x000000b9, 0x8e58eccf, 0xf3afc793,
0xd00d08c7},
{0x292561e8, 0x0000000c, 0x00000403, 0xa2ba8aaf, 0x0b797aed,
0x8ba966bc},
{0x415037f6, 0x00000003, 0x00000676, 0xa17d52e8, 0x7f0fdf35,
0x11d694a2},
{0x3466e707, 0x00000026, 0x00000042, 0x258319be, 0x75c484a2,
0x6ab3208d},
{0xafd1281b, 0x00000023, 0x000002ee, 0x4428eaf8, 0x06c7ad10,
0xba4603c5},
{0xd3857b18, 0x00000028, 0x000004a2, 0x5c430821, 0xb062b7cb,
0xe6071c6f},
{0x1d825a8f, 0x0000002b, 0x0000050b, 0xd2c45f0c, 0xd68634e0,
0x179ec30a},
{0x5033e3bc, 0x0000000b, 0x00000078, 0xa3ea4113, 0xac6d31fb,
0x0903beb8},
{0x94f1fb5e, 0x0000000f, 0x000003a2, 0xfbfc50b1, 0x3cfe50ed,
0x6a7cb4fa},
{0xc9a0fe14, 0x00000009, 0x00000473, 0x5fb61894, 0x87070591,
0xdb535801},
{0x88a034b1, 0x0000001c, 0x000005ad, 0xc1b16053, 0x46f95c67,
0x92bed597},
{0xf0f72239, 0x00000020, 0x0000026d, 0xa6fa58f3, 0xf8c2c1dd,
0x192a3f1b},
{0xcc20a5e3, 0x0000003b, 0x0000067a, 0x7740185a, 0x308b979a,
0xccbaec1a},
{0xce589c95, 0x0000002b, 0x00000641, 0xd055e987, 0x40aae25b,
0x7eabae4d},
{0x78edc885, 0x00000035, 0x000005be, 0xa39cb14b, 0x035b0d1f,
0x28c72982},
{0x9d40a377, 0x0000003b, 0x00000038, 0x1f47ccd2, 0x197fbc9d,
0xc3cd4d18},
{0x703d0e01, 0x0000003c, 0x000006f1, 0x88735e7c, 0xfed57c5a,
0xbca8f0e7},
{0x776bf505, 0x0000000f, 0x000005b2, 0x5cc4fc01, 0xf32efb97,
0x713f60b3},
{0x4a3e7854, 0x00000027, 0x000004b8, 0x8d923c82, 0x0cbfb4a2,
0xebd08fd5},
{0x209172dd, 0x0000003b, 0x00000356, 0xb89e9c2b, 0xd7868138,
0x64406c59},
{0x3ba4cc5b, 0x0000002f, 0x00000203, 0xe51601a9, 0x5b2a1032,
0x7421890e},
{0xfc62f297, 0x00000000, 0x00000079, 0x71a8e1a2, 0x5d88685f,
0xe9347603},
{0x64280b8b, 0x00000016, 0x000007ab, 0x0fa7a30c, 0xda3a455f,
0x1bef9060},
{0x97dd724b, 0x00000033, 0x000007ad, 0x5788b2f4, 0xd7326d32,
0x34720072},
{0x61394b52, 0x00000035, 0x00000571, 0xc66525f1, 0xcabe7fef,
0x48310f59},
{0x29b4faff, 0x00000024, 0x0000006e, 0xca13751e, 0x993648e0,
0x783a4213},
{0x29bfb1dc, 0x0000000b, 0x00000244, 0x436c43f7, 0x429f7a59,
0x9e8efd41},
{0x86ae934b, 0x00000035, 0x00000104, 0x0760ec93, 0x9cf7d0f4,
0xfc3d34a5},
{0xc4c1024e, 0x0000002e, 0x000006b1, 0x6516a3ec, 0x19321f9c,
0x17a52ae2},
{0x3287a80a, 0x00000026, 0x00000496, 0x0b257eb1, 0x754ebd51,
0x886d935a},
{0xa4db423e, 0x00000023, 0x0000045d, 0x9b3a66dc, 0x873e9f11,
0xeaaeaeb2},
{0x7a1078df, 0x00000015, 0x0000014a, 0x8c2484c5, 0x6a628659,
0x8e900a4b},
{0x6048bd5b, 0x00000006, 0x0000006a, 0x897e3559, 0xac9961af,
0xd74662b1},
{0xd8f9ea20, 0x0000003d, 0x00000277, 0x60eb905b, 0xed2aaf99,
0xd26752ba},
{0xea5ec3b4, 0x0000002a, 0x000004fe, 0x869965dc, 0x6c1f833b,
0x8b1fcd62},
{0x2dfb005d, 0x00000016, 0x00000345, 0x6a3b117e, 0xf05e8521,
0xf54342fe},
{0x5a214ade, 0x00000020, 0x000005b6, 0x467f70be, 0xcb22ccd3,
0x5b95b988},
{0xf0ab9cca, 0x00000032, 0x00000515, 0xed223df3, 0x7f3ef01d,
0x2e1176be},
{0x91b444f9, 0x0000002e, 0x000007f8, 0x84e9a983, 0x5676756f,
0x66120546},
{0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xba638c4c, 0x3f42047b,
0xf256a5cc},
{0xd824d1bb, 0x0000003a, 0x000007b5, 0x6288653b, 0x3a3ebea0,
0x4af1dd69},
{0x0470180c, 0x00000034, 0x000001f0, 0x9d5b80d6, 0x3de08195,
0x56f0a04a},
{0xffaa3a3f, 0x00000036, 0x00000299, 0xf3a82ab8, 0x53e0c13d,
0x74f6b6b2},
{0x6406cfeb, 0x00000023, 0x00000600, 0xa920b8e8, 0xe4e2acf4,
0x085951fd},
{0xb24aaa38, 0x0000003e, 0x000004a1, 0x657cc328, 0x5077b2c3,
0xc65387eb},
{0x58b2ab7c, 0x00000039, 0x000002b4, 0x3a17ee7e, 0x9dcb3643,
0x1ca9257b},
{0x3db85970, 0x00000006, 0x000002b6, 0x95268b59, 0xb9812c10,
0xfd196d76},
{0x857830c5, 0x00000003, 0x00000590, 0x4ef439d5, 0xf042161d,
0x5ef88339},
{0xe1fcd978, 0x0000003e, 0x000007d8, 0xae8d8699, 0xce0a1ef5,
0x2c3714d9},
{0xb982a768, 0x00000016, 0x000006e0, 0x62fad3df, 0x5f8a067b,
0x58576548},
{0x1d581ce8, 0x0000001e, 0x0000058b, 0xf0f5da53, 0x26e39eee,
0xfd7c57de},
{0x2456719b, 0x00000025, 0x00000503, 0x4296ac64, 0xd50e4c14,
0xd5fedd59},
{0xfae6d8f2, 0x00000000, 0x0000055d, 0x057fdf2e, 0x2a31391a,
0x1cc3b17b},
{0xcba828e3, 0x00000039, 0x000002ce, 0xe3f22351, 0x8f00877b,
0x270eed73},
{0x13d25952, 0x0000000a, 0x0000072d, 0x76d4b4cc, 0x5eb67ec3,
0x91ecbb11},
{0x0342be3f, 0x00000015, 0x00000599, 0xec75d9f1, 0x9d4d2826,
0x05ed8d0c},
{0xeaa344e0, 0x00000014, 0x000004d8, 0x72a4c981, 0x2064ea06,
0x0b09ad5b},
{0xbbb52021, 0x0000003b, 0x00000272, 0x04af99fc, 0xaf042d35,
0xf8d511fb},
{0xb66384dc, 0x0000001d, 0x000007fc, 0xd7629116, 0x782bd801,
0x5ad832cc},
{0x616c01b6, 0x00000022, 0x000002c8, 0x5b1dab30, 0x783ce7d2,
0x1214d196},
{0xce2bdaad, 0x00000016, 0x0000062a, 0x932535c8, 0x3f02926d,
0x5747218a},
{0x00fe84d7, 0x00000005, 0x00000205, 0x850e50aa, 0x753d649c,
0xde8f14de},
{0xbebdcb4c, 0x00000006, 0x0000055d, 0xbeaa37a2, 0x2d8c9eba,
0x3563b7b9},
{0xd8b1a02a, 0x00000010, 0x00000387, 0x5017d2fc, 0x503541a5,
0x071475d0},
{0x3b96cad2, 0x00000036, 0x00000347, 0x1d2372ae, 0x926cd90b,
0x54c79d60},
{0xc94c1ed7, 0x00000005, 0x0000038b, 0x9e9fdb22, 0x144a9178,
0x4c53eee6},
{0x1aad454e, 0x00000025, 0x000002b2, 0xc3f6315c, 0x5c7a35b3,
0x10137a3c},
{0xa4fec9a6, 0x00000000, 0x000006d6, 0x90be5080, 0xa4107605,
0xaa9d6c73},
{0x1bbe71e2, 0x0000001f, 0x000002fd, 0x4e504c3b, 0x284ccaf1,
0xb63d23e7},
{0x4201c7e4, 0x00000002, 0x000002b7, 0x7822e3f9, 0x0cc912a9,
0x7f53e9cf},
{0x23fddc96, 0x00000003, 0x00000627, 0x8a385125, 0x07767e78,
0x13c1cd83},
{0xd82ba25c, 0x00000016, 0x0000063e, 0x98e4148a, 0x283330c9,
0x49ff5867},
{0x786f2032, 0x0000002d, 0x0000060f, 0xf201600a, 0xf561bfcd,
0x8467f211},
{0xfebe4e1f, 0x0000002a, 0x000004f2, 0x95e51961, 0xfd80dcab,
0x3f9683b2},
{0x1a6e0a39, 0x00000008, 0x00000672, 0x8af6c2a5, 0x78dd84cb,
0x76a3f874},
{0x56000ab8, 0x0000000e, 0x000000e5, 0x36bacb8f, 0x22ee1f77,
0x863b702f},
{0x4717fe0c, 0x00000000, 0x000006ec, 0x8439f342, 0x5c8e03da,
0xdc6c58ff},
{0xd5d5d68e, 0x0000003c, 0x000003a3, 0x46fff083, 0x177d1b39,
0x0622cc95},
{0xc25dd6c6, 0x00000024, 0x000006c0, 0x5ceb8eb4, 0x892b0d16,
0xe85605cd},
{0xe9b11300, 0x00000023, 0x00000683, 0x07a5d59a, 0x6c6a3208,
0x31da5f06},
{0x95cd285e, 0x00000001, 0x00000047, 0x7b3a4368, 0x0202c07e,
0xa1f2e784},
{0xd9245a25, 0x0000001e, 0x000003a6, 0xd33c1841, 0x1936c0d5,
0xb07cc616},
{0x103279db, 0x00000006, 0x0000039b, 0xca09b8a0, 0x77d62892,
0xbf943b6c},
{0x1cba3172, 0x00000027, 0x000001c8, 0xcb377194, 0xebe682db,
0x2c01af1c},
{0x8f613739, 0x0000000c, 0x000001df, 0xb4b0bc87, 0x7710bd43,
0x0fe5f56d},
{0x1c6aa90d, 0x0000001b, 0x0000053c, 0x70559245, 0xda7894ac,
0xf8943b2d},
{0xaabe5b93, 0x0000003d, 0x00000715, 0xcdbf42fa, 0x0c3b99e7,
0xe4d89272},
{0xf15dd038, 0x00000006, 0x000006db, 0x6e104aea, 0x8d5967f2,
0x7c2f6bbb},
{0x584dd49c, 0x00000020, 0x000007bc, 0x36b6cfd6, 0xad4e23b2,
0xabbf388b},
{0x5d8c9506, 0x00000020, 0x00000470, 0x4c62378e, 0x31d92640,
0x1dca1f4e},
{0xb80d17b0, 0x00000032, 0x00000346, 0x22a5bb88, 0x9a7ec89f,
0x5c170e23},
{0xdaf0592e, 0x00000023, 0x000007b0, 0x3cab3f99, 0x9b1fdd99,
0xc0e9d672},
{0x4793cc85, 0x0000000d, 0x00000706, 0xe82e04f6, 0xed3db6b7,
0xc18bdc86},
{0x82ebf64e, 0x00000009, 0x000007c3, 0x69d590a9, 0x9efa8499,
0xa874fcdd},
{0xb18a0319, 0x00000026, 0x000007db, 0x1cf98dcc, 0x8fa9ad6a,
0x9dc0bb48},
};

#include <linux/time.h>

static int __init crc32_init(void)
static int __init crc32c_test(void)
{
int i;
int errors = 0;
int bytes = 0;
struct timespec start, stop;
u64 nsec;
unsigned long flags;

/* keep static to prevent cache warming code from
* getting eliminated by the compiler */
static u32 crc;

/* pre-warm the cache */
for (i = 0; i < 100; i++) {
bytes += 2*test[i].length;

crc ^= __crc32c_le(test[i].crc, test_buf +
test[i].start, test[i].length);
}

/* reduce OS noise */
local_irq_save(flags);
local_irq_disable();

getnstimeofday(&start);
for (i = 0; i < 100; i++) {
if (test[i].crc32c_le != __crc32c_le(test[i].crc, test_buf +
test[i].start, test[i].length))
errors++;
}
getnstimeofday(&stop);

local_irq_restore(flags);
local_irq_enable();

nsec = stop.tv_nsec - start.tv_nsec +
1000000000 * (stop.tv_sec - start.tv_sec);

pr_info("crc32c: CRC_LE_BITS = %d\n", CRC_LE_BITS);

if (errors)
pr_warn("crc32c: %d self tests failed\n", errors);
else {
pr_info("crc32c: self tests passed, processed %d bytes in %lld nsec\n",
bytes, nsec);
}

return 0;
}

static int __init crc32_test(void)
{
int i;
int errors = 0;
Expand Down Expand Up @@ -947,10 +1099,17 @@ static int __init crc32_init(void)
return 0;
}

static int __init crc32test_init(void)
{
crc32_test();
crc32c_test();
return 0;
}

static void __exit crc32_exit(void)
{
}

module_init(crc32_init);
module_init(crc32test_init);
module_exit(crc32_exit);
#endif /* CONFIG_CRC32_SELFTEST */

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