Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

crc32: add self-test code for crc32c

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>

authored by

Darrick J. Wong and committed by
Linus Torvalds
577eba9e 6a0962b2

+261 -102
+261 -102
lib/crc32.c
··· 782 782 u32 length; /* random 11 bit length of test */ 783 783 u32 crc_le; /* expected crc32_le result */ 784 784 u32 crc_be; /* expected crc32_be result */ 785 + u32 crc32c_le; /* expected crc32c_le result */ 785 786 } test[] = 786 787 { 787 - {0x674bf11d, 0x00000038, 0x00000542, 0x0af6d466, 0xd8b6e4c1}, 788 - {0x35c672c6, 0x0000003a, 0x000001aa, 0xc6d3dfba, 0x28aaf3ad}, 789 - {0x496da28e, 0x00000039, 0x000005af, 0xd933660f, 0x5d57e81f}, 790 - {0x09a9b90e, 0x00000027, 0x000001f8, 0xb45fe007, 0xf45fca9a}, 791 - {0xdc97e5a9, 0x00000025, 0x000003b6, 0xf81a3562, 0xe0126ba2}, 792 - {0x47c58900, 0x0000000a, 0x000000b9, 0x8e58eccf, 0xf3afc793}, 793 - {0x292561e8, 0x0000000c, 0x00000403, 0xa2ba8aaf, 0x0b797aed}, 794 - {0x415037f6, 0x00000003, 0x00000676, 0xa17d52e8, 0x7f0fdf35}, 795 - {0x3466e707, 0x00000026, 0x00000042, 0x258319be, 0x75c484a2}, 796 - {0xafd1281b, 0x00000023, 0x000002ee, 0x4428eaf8, 0x06c7ad10}, 797 - {0xd3857b18, 0x00000028, 0x000004a2, 0x5c430821, 0xb062b7cb}, 798 - {0x1d825a8f, 0x0000002b, 0x0000050b, 0xd2c45f0c, 0xd68634e0}, 799 - {0x5033e3bc, 0x0000000b, 0x00000078, 0xa3ea4113, 0xac6d31fb}, 800 - {0x94f1fb5e, 0x0000000f, 0x000003a2, 0xfbfc50b1, 0x3cfe50ed}, 801 - {0xc9a0fe14, 0x00000009, 0x00000473, 0x5fb61894, 0x87070591}, 802 - {0x88a034b1, 0x0000001c, 0x000005ad, 0xc1b16053, 0x46f95c67}, 803 - {0xf0f72239, 0x00000020, 0x0000026d, 0xa6fa58f3, 0xf8c2c1dd}, 804 - {0xcc20a5e3, 0x0000003b, 0x0000067a, 0x7740185a, 0x308b979a}, 805 - {0xce589c95, 0x0000002b, 0x00000641, 0xd055e987, 0x40aae25b}, 806 - {0x78edc885, 0x00000035, 0x000005be, 0xa39cb14b, 0x035b0d1f}, 807 - {0x9d40a377, 0x0000003b, 0x00000038, 0x1f47ccd2, 0x197fbc9d}, 808 - {0x703d0e01, 0x0000003c, 0x000006f1, 0x88735e7c, 0xfed57c5a}, 809 - {0x776bf505, 0x0000000f, 0x000005b2, 0x5cc4fc01, 0xf32efb97}, 810 - {0x4a3e7854, 0x00000027, 0x000004b8, 0x8d923c82, 0x0cbfb4a2}, 811 - {0x209172dd, 0x0000003b, 0x00000356, 0xb89e9c2b, 0xd7868138}, 812 - {0x3ba4cc5b, 0x0000002f, 0x00000203, 0xe51601a9, 0x5b2a1032}, 813 - {0xfc62f297, 0x00000000, 0x00000079, 0x71a8e1a2, 0x5d88685f}, 814 - {0x64280b8b, 0x00000016, 0x000007ab, 0x0fa7a30c, 0xda3a455f}, 815 - {0x97dd724b, 0x00000033, 0x000007ad, 0x5788b2f4, 0xd7326d32}, 816 - {0x61394b52, 0x00000035, 0x00000571, 0xc66525f1, 0xcabe7fef}, 817 - {0x29b4faff, 0x00000024, 0x0000006e, 0xca13751e, 0x993648e0}, 818 - {0x29bfb1dc, 0x0000000b, 0x00000244, 0x436c43f7, 0x429f7a59}, 819 - {0x86ae934b, 0x00000035, 0x00000104, 0x0760ec93, 0x9cf7d0f4}, 820 - {0xc4c1024e, 0x0000002e, 0x000006b1, 0x6516a3ec, 0x19321f9c}, 821 - {0x3287a80a, 0x00000026, 0x00000496, 0x0b257eb1, 0x754ebd51}, 822 - {0xa4db423e, 0x00000023, 0x0000045d, 0x9b3a66dc, 0x873e9f11}, 823 - {0x7a1078df, 0x00000015, 0x0000014a, 0x8c2484c5, 0x6a628659}, 824 - {0x6048bd5b, 0x00000006, 0x0000006a, 0x897e3559, 0xac9961af}, 825 - {0xd8f9ea20, 0x0000003d, 0x00000277, 0x60eb905b, 0xed2aaf99}, 826 - {0xea5ec3b4, 0x0000002a, 0x000004fe, 0x869965dc, 0x6c1f833b}, 827 - {0x2dfb005d, 0x00000016, 0x00000345, 0x6a3b117e, 0xf05e8521}, 828 - {0x5a214ade, 0x00000020, 0x000005b6, 0x467f70be, 0xcb22ccd3}, 829 - {0xf0ab9cca, 0x00000032, 0x00000515, 0xed223df3, 0x7f3ef01d}, 830 - {0x91b444f9, 0x0000002e, 0x000007f8, 0x84e9a983, 0x5676756f}, 831 - {0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xba638c4c, 0x3f42047b}, 832 - {0xd824d1bb, 0x0000003a, 0x000007b5, 0x6288653b, 0x3a3ebea0}, 833 - {0x0470180c, 0x00000034, 0x000001f0, 0x9d5b80d6, 0x3de08195}, 834 - {0xffaa3a3f, 0x00000036, 0x00000299, 0xf3a82ab8, 0x53e0c13d}, 835 - {0x6406cfeb, 0x00000023, 0x00000600, 0xa920b8e8, 0xe4e2acf4}, 836 - {0xb24aaa38, 0x0000003e, 0x000004a1, 0x657cc328, 0x5077b2c3}, 837 - {0x58b2ab7c, 0x00000039, 0x000002b4, 0x3a17ee7e, 0x9dcb3643}, 838 - {0x3db85970, 0x00000006, 0x000002b6, 0x95268b59, 0xb9812c10}, 839 - {0x857830c5, 0x00000003, 0x00000590, 0x4ef439d5, 0xf042161d}, 840 - {0xe1fcd978, 0x0000003e, 0x000007d8, 0xae8d8699, 0xce0a1ef5}, 841 - {0xb982a768, 0x00000016, 0x000006e0, 0x62fad3df, 0x5f8a067b}, 842 - {0x1d581ce8, 0x0000001e, 0x0000058b, 0xf0f5da53, 0x26e39eee}, 843 - {0x2456719b, 0x00000025, 0x00000503, 0x4296ac64, 0xd50e4c14}, 844 - {0xfae6d8f2, 0x00000000, 0x0000055d, 0x057fdf2e, 0x2a31391a}, 845 - {0xcba828e3, 0x00000039, 0x000002ce, 0xe3f22351, 0x8f00877b}, 846 - {0x13d25952, 0x0000000a, 0x0000072d, 0x76d4b4cc, 0x5eb67ec3}, 847 - {0x0342be3f, 0x00000015, 0x00000599, 0xec75d9f1, 0x9d4d2826}, 848 - {0xeaa344e0, 0x00000014, 0x000004d8, 0x72a4c981, 0x2064ea06}, 849 - {0xbbb52021, 0x0000003b, 0x00000272, 0x04af99fc, 0xaf042d35}, 850 - {0xb66384dc, 0x0000001d, 0x000007fc, 0xd7629116, 0x782bd801}, 851 - {0x616c01b6, 0x00000022, 0x000002c8, 0x5b1dab30, 0x783ce7d2}, 852 - {0xce2bdaad, 0x00000016, 0x0000062a, 0x932535c8, 0x3f02926d}, 853 - {0x00fe84d7, 0x00000005, 0x00000205, 0x850e50aa, 0x753d649c}, 854 - {0xbebdcb4c, 0x00000006, 0x0000055d, 0xbeaa37a2, 0x2d8c9eba}, 855 - {0xd8b1a02a, 0x00000010, 0x00000387, 0x5017d2fc, 0x503541a5}, 856 - {0x3b96cad2, 0x00000036, 0x00000347, 0x1d2372ae, 0x926cd90b}, 857 - {0xc94c1ed7, 0x00000005, 0x0000038b, 0x9e9fdb22, 0x144a9178}, 858 - {0x1aad454e, 0x00000025, 0x000002b2, 0xc3f6315c, 0x5c7a35b3}, 859 - {0xa4fec9a6, 0x00000000, 0x000006d6, 0x90be5080, 0xa4107605}, 860 - {0x1bbe71e2, 0x0000001f, 0x000002fd, 0x4e504c3b, 0x284ccaf1}, 861 - {0x4201c7e4, 0x00000002, 0x000002b7, 0x7822e3f9, 0x0cc912a9}, 862 - {0x23fddc96, 0x00000003, 0x00000627, 0x8a385125, 0x07767e78}, 863 - {0xd82ba25c, 0x00000016, 0x0000063e, 0x98e4148a, 0x283330c9}, 864 - {0x786f2032, 0x0000002d, 0x0000060f, 0xf201600a, 0xf561bfcd}, 865 - {0xfebe4e1f, 0x0000002a, 0x000004f2, 0x95e51961, 0xfd80dcab}, 866 - {0x1a6e0a39, 0x00000008, 0x00000672, 0x8af6c2a5, 0x78dd84cb}, 867 - {0x56000ab8, 0x0000000e, 0x000000e5, 0x36bacb8f, 0x22ee1f77}, 868 - {0x4717fe0c, 0x00000000, 0x000006ec, 0x8439f342, 0x5c8e03da}, 869 - {0xd5d5d68e, 0x0000003c, 0x000003a3, 0x46fff083, 0x177d1b39}, 870 - {0xc25dd6c6, 0x00000024, 0x000006c0, 0x5ceb8eb4, 0x892b0d16}, 871 - {0xe9b11300, 0x00000023, 0x00000683, 0x07a5d59a, 0x6c6a3208}, 872 - {0x95cd285e, 0x00000001, 0x00000047, 0x7b3a4368, 0x0202c07e}, 873 - {0xd9245a25, 0x0000001e, 0x000003a6, 0xd33c1841, 0x1936c0d5}, 874 - {0x103279db, 0x00000006, 0x0000039b, 0xca09b8a0, 0x77d62892}, 875 - {0x1cba3172, 0x00000027, 0x000001c8, 0xcb377194, 0xebe682db}, 876 - {0x8f613739, 0x0000000c, 0x000001df, 0xb4b0bc87, 0x7710bd43}, 877 - {0x1c6aa90d, 0x0000001b, 0x0000053c, 0x70559245, 0xda7894ac}, 878 - {0xaabe5b93, 0x0000003d, 0x00000715, 0xcdbf42fa, 0x0c3b99e7}, 879 - {0xf15dd038, 0x00000006, 0x000006db, 0x6e104aea, 0x8d5967f2}, 880 - {0x584dd49c, 0x00000020, 0x000007bc, 0x36b6cfd6, 0xad4e23b2}, 881 - {0x5d8c9506, 0x00000020, 0x00000470, 0x4c62378e, 0x31d92640}, 882 - {0xb80d17b0, 0x00000032, 0x00000346, 0x22a5bb88, 0x9a7ec89f}, 883 - {0xdaf0592e, 0x00000023, 0x000007b0, 0x3cab3f99, 0x9b1fdd99}, 884 - {0x4793cc85, 0x0000000d, 0x00000706, 0xe82e04f6, 0xed3db6b7}, 885 - {0x82ebf64e, 0x00000009, 0x000007c3, 0x69d590a9, 0x9efa8499}, 886 - {0xb18a0319, 0x00000026, 0x000007db, 0x1cf98dcc, 0x8fa9ad6a}, 788 + {0x674bf11d, 0x00000038, 0x00000542, 0x0af6d466, 0xd8b6e4c1, 789 + 0xf6e93d6c}, 790 + {0x35c672c6, 0x0000003a, 0x000001aa, 0xc6d3dfba, 0x28aaf3ad, 791 + 0x0fe92aca}, 792 + {0x496da28e, 0x00000039, 0x000005af, 0xd933660f, 0x5d57e81f, 793 + 0x52e1ebb8}, 794 + {0x09a9b90e, 0x00000027, 0x000001f8, 0xb45fe007, 0xf45fca9a, 795 + 0x0798af9a}, 796 + {0xdc97e5a9, 0x00000025, 0x000003b6, 0xf81a3562, 0xe0126ba2, 797 + 0x18eb3152}, 798 + {0x47c58900, 0x0000000a, 0x000000b9, 0x8e58eccf, 0xf3afc793, 799 + 0xd00d08c7}, 800 + {0x292561e8, 0x0000000c, 0x00000403, 0xa2ba8aaf, 0x0b797aed, 801 + 0x8ba966bc}, 802 + {0x415037f6, 0x00000003, 0x00000676, 0xa17d52e8, 0x7f0fdf35, 803 + 0x11d694a2}, 804 + {0x3466e707, 0x00000026, 0x00000042, 0x258319be, 0x75c484a2, 805 + 0x6ab3208d}, 806 + {0xafd1281b, 0x00000023, 0x000002ee, 0x4428eaf8, 0x06c7ad10, 807 + 0xba4603c5}, 808 + {0xd3857b18, 0x00000028, 0x000004a2, 0x5c430821, 0xb062b7cb, 809 + 0xe6071c6f}, 810 + {0x1d825a8f, 0x0000002b, 0x0000050b, 0xd2c45f0c, 0xd68634e0, 811 + 0x179ec30a}, 812 + {0x5033e3bc, 0x0000000b, 0x00000078, 0xa3ea4113, 0xac6d31fb, 813 + 0x0903beb8}, 814 + {0x94f1fb5e, 0x0000000f, 0x000003a2, 0xfbfc50b1, 0x3cfe50ed, 815 + 0x6a7cb4fa}, 816 + {0xc9a0fe14, 0x00000009, 0x00000473, 0x5fb61894, 0x87070591, 817 + 0xdb535801}, 818 + {0x88a034b1, 0x0000001c, 0x000005ad, 0xc1b16053, 0x46f95c67, 819 + 0x92bed597}, 820 + {0xf0f72239, 0x00000020, 0x0000026d, 0xa6fa58f3, 0xf8c2c1dd, 821 + 0x192a3f1b}, 822 + {0xcc20a5e3, 0x0000003b, 0x0000067a, 0x7740185a, 0x308b979a, 823 + 0xccbaec1a}, 824 + {0xce589c95, 0x0000002b, 0x00000641, 0xd055e987, 0x40aae25b, 825 + 0x7eabae4d}, 826 + {0x78edc885, 0x00000035, 0x000005be, 0xa39cb14b, 0x035b0d1f, 827 + 0x28c72982}, 828 + {0x9d40a377, 0x0000003b, 0x00000038, 0x1f47ccd2, 0x197fbc9d, 829 + 0xc3cd4d18}, 830 + {0x703d0e01, 0x0000003c, 0x000006f1, 0x88735e7c, 0xfed57c5a, 831 + 0xbca8f0e7}, 832 + {0x776bf505, 0x0000000f, 0x000005b2, 0x5cc4fc01, 0xf32efb97, 833 + 0x713f60b3}, 834 + {0x4a3e7854, 0x00000027, 0x000004b8, 0x8d923c82, 0x0cbfb4a2, 835 + 0xebd08fd5}, 836 + {0x209172dd, 0x0000003b, 0x00000356, 0xb89e9c2b, 0xd7868138, 837 + 0x64406c59}, 838 + {0x3ba4cc5b, 0x0000002f, 0x00000203, 0xe51601a9, 0x5b2a1032, 839 + 0x7421890e}, 840 + {0xfc62f297, 0x00000000, 0x00000079, 0x71a8e1a2, 0x5d88685f, 841 + 0xe9347603}, 842 + {0x64280b8b, 0x00000016, 0x000007ab, 0x0fa7a30c, 0xda3a455f, 843 + 0x1bef9060}, 844 + {0x97dd724b, 0x00000033, 0x000007ad, 0x5788b2f4, 0xd7326d32, 845 + 0x34720072}, 846 + {0x61394b52, 0x00000035, 0x00000571, 0xc66525f1, 0xcabe7fef, 847 + 0x48310f59}, 848 + {0x29b4faff, 0x00000024, 0x0000006e, 0xca13751e, 0x993648e0, 849 + 0x783a4213}, 850 + {0x29bfb1dc, 0x0000000b, 0x00000244, 0x436c43f7, 0x429f7a59, 851 + 0x9e8efd41}, 852 + {0x86ae934b, 0x00000035, 0x00000104, 0x0760ec93, 0x9cf7d0f4, 853 + 0xfc3d34a5}, 854 + {0xc4c1024e, 0x0000002e, 0x000006b1, 0x6516a3ec, 0x19321f9c, 855 + 0x17a52ae2}, 856 + {0x3287a80a, 0x00000026, 0x00000496, 0x0b257eb1, 0x754ebd51, 857 + 0x886d935a}, 858 + {0xa4db423e, 0x00000023, 0x0000045d, 0x9b3a66dc, 0x873e9f11, 859 + 0xeaaeaeb2}, 860 + {0x7a1078df, 0x00000015, 0x0000014a, 0x8c2484c5, 0x6a628659, 861 + 0x8e900a4b}, 862 + {0x6048bd5b, 0x00000006, 0x0000006a, 0x897e3559, 0xac9961af, 863 + 0xd74662b1}, 864 + {0xd8f9ea20, 0x0000003d, 0x00000277, 0x60eb905b, 0xed2aaf99, 865 + 0xd26752ba}, 866 + {0xea5ec3b4, 0x0000002a, 0x000004fe, 0x869965dc, 0x6c1f833b, 867 + 0x8b1fcd62}, 868 + {0x2dfb005d, 0x00000016, 0x00000345, 0x6a3b117e, 0xf05e8521, 869 + 0xf54342fe}, 870 + {0x5a214ade, 0x00000020, 0x000005b6, 0x467f70be, 0xcb22ccd3, 871 + 0x5b95b988}, 872 + {0xf0ab9cca, 0x00000032, 0x00000515, 0xed223df3, 0x7f3ef01d, 873 + 0x2e1176be}, 874 + {0x91b444f9, 0x0000002e, 0x000007f8, 0x84e9a983, 0x5676756f, 875 + 0x66120546}, 876 + {0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xba638c4c, 0x3f42047b, 877 + 0xf256a5cc}, 878 + {0xd824d1bb, 0x0000003a, 0x000007b5, 0x6288653b, 0x3a3ebea0, 879 + 0x4af1dd69}, 880 + {0x0470180c, 0x00000034, 0x000001f0, 0x9d5b80d6, 0x3de08195, 881 + 0x56f0a04a}, 882 + {0xffaa3a3f, 0x00000036, 0x00000299, 0xf3a82ab8, 0x53e0c13d, 883 + 0x74f6b6b2}, 884 + {0x6406cfeb, 0x00000023, 0x00000600, 0xa920b8e8, 0xe4e2acf4, 885 + 0x085951fd}, 886 + {0xb24aaa38, 0x0000003e, 0x000004a1, 0x657cc328, 0x5077b2c3, 887 + 0xc65387eb}, 888 + {0x58b2ab7c, 0x00000039, 0x000002b4, 0x3a17ee7e, 0x9dcb3643, 889 + 0x1ca9257b}, 890 + {0x3db85970, 0x00000006, 0x000002b6, 0x95268b59, 0xb9812c10, 891 + 0xfd196d76}, 892 + {0x857830c5, 0x00000003, 0x00000590, 0x4ef439d5, 0xf042161d, 893 + 0x5ef88339}, 894 + {0xe1fcd978, 0x0000003e, 0x000007d8, 0xae8d8699, 0xce0a1ef5, 895 + 0x2c3714d9}, 896 + {0xb982a768, 0x00000016, 0x000006e0, 0x62fad3df, 0x5f8a067b, 897 + 0x58576548}, 898 + {0x1d581ce8, 0x0000001e, 0x0000058b, 0xf0f5da53, 0x26e39eee, 899 + 0xfd7c57de}, 900 + {0x2456719b, 0x00000025, 0x00000503, 0x4296ac64, 0xd50e4c14, 901 + 0xd5fedd59}, 902 + {0xfae6d8f2, 0x00000000, 0x0000055d, 0x057fdf2e, 0x2a31391a, 903 + 0x1cc3b17b}, 904 + {0xcba828e3, 0x00000039, 0x000002ce, 0xe3f22351, 0x8f00877b, 905 + 0x270eed73}, 906 + {0x13d25952, 0x0000000a, 0x0000072d, 0x76d4b4cc, 0x5eb67ec3, 907 + 0x91ecbb11}, 908 + {0x0342be3f, 0x00000015, 0x00000599, 0xec75d9f1, 0x9d4d2826, 909 + 0x05ed8d0c}, 910 + {0xeaa344e0, 0x00000014, 0x000004d8, 0x72a4c981, 0x2064ea06, 911 + 0x0b09ad5b}, 912 + {0xbbb52021, 0x0000003b, 0x00000272, 0x04af99fc, 0xaf042d35, 913 + 0xf8d511fb}, 914 + {0xb66384dc, 0x0000001d, 0x000007fc, 0xd7629116, 0x782bd801, 915 + 0x5ad832cc}, 916 + {0x616c01b6, 0x00000022, 0x000002c8, 0x5b1dab30, 0x783ce7d2, 917 + 0x1214d196}, 918 + {0xce2bdaad, 0x00000016, 0x0000062a, 0x932535c8, 0x3f02926d, 919 + 0x5747218a}, 920 + {0x00fe84d7, 0x00000005, 0x00000205, 0x850e50aa, 0x753d649c, 921 + 0xde8f14de}, 922 + {0xbebdcb4c, 0x00000006, 0x0000055d, 0xbeaa37a2, 0x2d8c9eba, 923 + 0x3563b7b9}, 924 + {0xd8b1a02a, 0x00000010, 0x00000387, 0x5017d2fc, 0x503541a5, 925 + 0x071475d0}, 926 + {0x3b96cad2, 0x00000036, 0x00000347, 0x1d2372ae, 0x926cd90b, 927 + 0x54c79d60}, 928 + {0xc94c1ed7, 0x00000005, 0x0000038b, 0x9e9fdb22, 0x144a9178, 929 + 0x4c53eee6}, 930 + {0x1aad454e, 0x00000025, 0x000002b2, 0xc3f6315c, 0x5c7a35b3, 931 + 0x10137a3c}, 932 + {0xa4fec9a6, 0x00000000, 0x000006d6, 0x90be5080, 0xa4107605, 933 + 0xaa9d6c73}, 934 + {0x1bbe71e2, 0x0000001f, 0x000002fd, 0x4e504c3b, 0x284ccaf1, 935 + 0xb63d23e7}, 936 + {0x4201c7e4, 0x00000002, 0x000002b7, 0x7822e3f9, 0x0cc912a9, 937 + 0x7f53e9cf}, 938 + {0x23fddc96, 0x00000003, 0x00000627, 0x8a385125, 0x07767e78, 939 + 0x13c1cd83}, 940 + {0xd82ba25c, 0x00000016, 0x0000063e, 0x98e4148a, 0x283330c9, 941 + 0x49ff5867}, 942 + {0x786f2032, 0x0000002d, 0x0000060f, 0xf201600a, 0xf561bfcd, 943 + 0x8467f211}, 944 + {0xfebe4e1f, 0x0000002a, 0x000004f2, 0x95e51961, 0xfd80dcab, 945 + 0x3f9683b2}, 946 + {0x1a6e0a39, 0x00000008, 0x00000672, 0x8af6c2a5, 0x78dd84cb, 947 + 0x76a3f874}, 948 + {0x56000ab8, 0x0000000e, 0x000000e5, 0x36bacb8f, 0x22ee1f77, 949 + 0x863b702f}, 950 + {0x4717fe0c, 0x00000000, 0x000006ec, 0x8439f342, 0x5c8e03da, 951 + 0xdc6c58ff}, 952 + {0xd5d5d68e, 0x0000003c, 0x000003a3, 0x46fff083, 0x177d1b39, 953 + 0x0622cc95}, 954 + {0xc25dd6c6, 0x00000024, 0x000006c0, 0x5ceb8eb4, 0x892b0d16, 955 + 0xe85605cd}, 956 + {0xe9b11300, 0x00000023, 0x00000683, 0x07a5d59a, 0x6c6a3208, 957 + 0x31da5f06}, 958 + {0x95cd285e, 0x00000001, 0x00000047, 0x7b3a4368, 0x0202c07e, 959 + 0xa1f2e784}, 960 + {0xd9245a25, 0x0000001e, 0x000003a6, 0xd33c1841, 0x1936c0d5, 961 + 0xb07cc616}, 962 + {0x103279db, 0x00000006, 0x0000039b, 0xca09b8a0, 0x77d62892, 963 + 0xbf943b6c}, 964 + {0x1cba3172, 0x00000027, 0x000001c8, 0xcb377194, 0xebe682db, 965 + 0x2c01af1c}, 966 + {0x8f613739, 0x0000000c, 0x000001df, 0xb4b0bc87, 0x7710bd43, 967 + 0x0fe5f56d}, 968 + {0x1c6aa90d, 0x0000001b, 0x0000053c, 0x70559245, 0xda7894ac, 969 + 0xf8943b2d}, 970 + {0xaabe5b93, 0x0000003d, 0x00000715, 0xcdbf42fa, 0x0c3b99e7, 971 + 0xe4d89272}, 972 + {0xf15dd038, 0x00000006, 0x000006db, 0x6e104aea, 0x8d5967f2, 973 + 0x7c2f6bbb}, 974 + {0x584dd49c, 0x00000020, 0x000007bc, 0x36b6cfd6, 0xad4e23b2, 975 + 0xabbf388b}, 976 + {0x5d8c9506, 0x00000020, 0x00000470, 0x4c62378e, 0x31d92640, 977 + 0x1dca1f4e}, 978 + {0xb80d17b0, 0x00000032, 0x00000346, 0x22a5bb88, 0x9a7ec89f, 979 + 0x5c170e23}, 980 + {0xdaf0592e, 0x00000023, 0x000007b0, 0x3cab3f99, 0x9b1fdd99, 981 + 0xc0e9d672}, 982 + {0x4793cc85, 0x0000000d, 0x00000706, 0xe82e04f6, 0xed3db6b7, 983 + 0xc18bdc86}, 984 + {0x82ebf64e, 0x00000009, 0x000007c3, 0x69d590a9, 0x9efa8499, 985 + 0xa874fcdd}, 986 + {0xb18a0319, 0x00000026, 0x000007db, 0x1cf98dcc, 0x8fa9ad6a, 987 + 0x9dc0bb48}, 887 988 }; 888 989 889 990 #include <linux/time.h> 890 991 891 - static int __init crc32_init(void) 992 + static int __init crc32c_test(void) 993 + { 994 + int i; 995 + int errors = 0; 996 + int bytes = 0; 997 + struct timespec start, stop; 998 + u64 nsec; 999 + unsigned long flags; 1000 + 1001 + /* keep static to prevent cache warming code from 1002 + * getting eliminated by the compiler */ 1003 + static u32 crc; 1004 + 1005 + /* pre-warm the cache */ 1006 + for (i = 0; i < 100; i++) { 1007 + bytes += 2*test[i].length; 1008 + 1009 + crc ^= __crc32c_le(test[i].crc, test_buf + 1010 + test[i].start, test[i].length); 1011 + } 1012 + 1013 + /* reduce OS noise */ 1014 + local_irq_save(flags); 1015 + local_irq_disable(); 1016 + 1017 + getnstimeofday(&start); 1018 + for (i = 0; i < 100; i++) { 1019 + if (test[i].crc32c_le != __crc32c_le(test[i].crc, test_buf + 1020 + test[i].start, test[i].length)) 1021 + errors++; 1022 + } 1023 + getnstimeofday(&stop); 1024 + 1025 + local_irq_restore(flags); 1026 + local_irq_enable(); 1027 + 1028 + nsec = stop.tv_nsec - start.tv_nsec + 1029 + 1000000000 * (stop.tv_sec - start.tv_sec); 1030 + 1031 + pr_info("crc32c: CRC_LE_BITS = %d\n", CRC_LE_BITS); 1032 + 1033 + if (errors) 1034 + pr_warn("crc32c: %d self tests failed\n", errors); 1035 + else { 1036 + pr_info("crc32c: self tests passed, processed %d bytes in %lld nsec\n", 1037 + bytes, nsec); 1038 + } 1039 + 1040 + return 0; 1041 + } 1042 + 1043 + static int __init crc32_test(void) 892 1044 { 893 1045 int i; 894 1046 int errors = 0; ··· 1099 947 return 0; 1100 948 } 1101 949 950 + static int __init crc32test_init(void) 951 + { 952 + crc32_test(); 953 + crc32c_test(); 954 + return 0; 955 + } 956 + 1102 957 static void __exit crc32_exit(void) 1103 958 { 1104 959 } 1105 960 1106 - module_init(crc32_init); 961 + module_init(crc32test_init); 1107 962 module_exit(crc32_exit); 1108 963 #endif /* CONFIG_CRC32_SELFTEST */