crc32test.c 37 KB

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  1. /*
  2. * Aug 8, 2011 Bob Pearson with help from Joakim Tjernlund and George Spelvin
  3. * cleaned up code to current version of sparse and added the slicing-by-8
  4. * algorithm to the closely similar existing slicing-by-4 algorithm.
  5. *
  6. * Oct 15, 2000 Matt Domsch <Matt_Domsch@dell.com>
  7. * Nicer crc32 functions/docs submitted by linux@horizon.com. Thanks!
  8. * Code was from the public domain, copyright abandoned. Code was
  9. * subsequently included in the kernel, thus was re-licensed under the
  10. * GNU GPL v2.
  11. *
  12. * Oct 12, 2000 Matt Domsch <Matt_Domsch@dell.com>
  13. * Same crc32 function was used in 5 other places in the kernel.
  14. * I made one version, and deleted the others.
  15. * There are various incantations of crc32(). Some use a seed of 0 or ~0.
  16. * Some xor at the end with ~0. The generic crc32() function takes
  17. * seed as an argument, and doesn't xor at the end. Then individual
  18. * users can do whatever they need.
  19. * drivers/net/smc9194.c uses seed ~0, doesn't xor with ~0.
  20. * fs/jffs2 uses seed 0, doesn't xor with ~0.
  21. * fs/partitions/efi.c uses seed ~0, xor's with ~0.
  22. *
  23. * This source code is licensed under the GNU General Public License,
  24. * Version 2. See the file COPYING for more details.
  25. */
  26. #include <linux/crc32.h>
  27. #include <linux/module.h>
  28. #include <linux/sched.h>
  29. #include "crc32defs.h"
  30. /* 4096 random bytes */
  31. static u8 const __aligned(8) test_buf[] __initconst =
  32. {
  33. 0x5b, 0x85, 0x21, 0xcb, 0x09, 0x68, 0x7d, 0x30,
  34. 0xc7, 0x69, 0xd7, 0x30, 0x92, 0xde, 0x59, 0xe4,
  35. 0xc9, 0x6e, 0x8b, 0xdb, 0x98, 0x6b, 0xaa, 0x60,
  36. 0xa8, 0xb5, 0xbc, 0x6c, 0xa9, 0xb1, 0x5b, 0x2c,
  37. 0xea, 0xb4, 0x92, 0x6a, 0x3f, 0x79, 0x91, 0xe4,
  38. 0xe9, 0x70, 0x51, 0x8c, 0x7f, 0x95, 0x6f, 0x1a,
  39. 0x56, 0xa1, 0x5c, 0x27, 0x03, 0x67, 0x9f, 0x3a,
  40. 0xe2, 0x31, 0x11, 0x29, 0x6b, 0x98, 0xfc, 0xc4,
  41. 0x53, 0x24, 0xc5, 0x8b, 0xce, 0x47, 0xb2, 0xb9,
  42. 0x32, 0xcb, 0xc1, 0xd0, 0x03, 0x57, 0x4e, 0xd4,
  43. 0xe9, 0x3c, 0xa1, 0x63, 0xcf, 0x12, 0x0e, 0xca,
  44. 0xe1, 0x13, 0xd1, 0x93, 0xa6, 0x88, 0x5c, 0x61,
  45. 0x5b, 0xbb, 0xf0, 0x19, 0x46, 0xb4, 0xcf, 0x9e,
  46. 0xb6, 0x6b, 0x4c, 0x3a, 0xcf, 0x60, 0xf9, 0x7a,
  47. 0x8d, 0x07, 0x63, 0xdb, 0x40, 0xe9, 0x0b, 0x6f,
  48. 0xad, 0x97, 0xf1, 0xed, 0xd0, 0x1e, 0x26, 0xfd,
  49. 0xbf, 0xb7, 0xc8, 0x04, 0x94, 0xf8, 0x8b, 0x8c,
  50. 0xf1, 0xab, 0x7a, 0xd4, 0xdd, 0xf3, 0xe8, 0x88,
  51. 0xc3, 0xed, 0x17, 0x8a, 0x9b, 0x40, 0x0d, 0x53,
  52. 0x62, 0x12, 0x03, 0x5f, 0x1b, 0x35, 0x32, 0x1f,
  53. 0xb4, 0x7b, 0x93, 0x78, 0x0d, 0xdb, 0xce, 0xa4,
  54. 0xc0, 0x47, 0xd5, 0xbf, 0x68, 0xe8, 0x5d, 0x74,
  55. 0x8f, 0x8e, 0x75, 0x1c, 0xb2, 0x4f, 0x9a, 0x60,
  56. 0xd1, 0xbe, 0x10, 0xf4, 0x5c, 0xa1, 0x53, 0x09,
  57. 0xa5, 0xe0, 0x09, 0x54, 0x85, 0x5c, 0xdc, 0x07,
  58. 0xe7, 0x21, 0x69, 0x7b, 0x8a, 0xfd, 0x90, 0xf1,
  59. 0x22, 0xd0, 0xb4, 0x36, 0x28, 0xe6, 0xb8, 0x0f,
  60. 0x39, 0xde, 0xc8, 0xf3, 0x86, 0x60, 0x34, 0xd2,
  61. 0x5e, 0xdf, 0xfd, 0xcf, 0x0f, 0xa9, 0x65, 0xf0,
  62. 0xd5, 0x4d, 0x96, 0x40, 0xe3, 0xdf, 0x3f, 0x95,
  63. 0x5a, 0x39, 0x19, 0x93, 0xf4, 0x75, 0xce, 0x22,
  64. 0x00, 0x1c, 0x93, 0xe2, 0x03, 0x66, 0xf4, 0x93,
  65. 0x73, 0x86, 0x81, 0x8e, 0x29, 0x44, 0x48, 0x86,
  66. 0x61, 0x7c, 0x48, 0xa3, 0x43, 0xd2, 0x9c, 0x8d,
  67. 0xd4, 0x95, 0xdd, 0xe1, 0x22, 0x89, 0x3a, 0x40,
  68. 0x4c, 0x1b, 0x8a, 0x04, 0xa8, 0x09, 0x69, 0x8b,
  69. 0xea, 0xc6, 0x55, 0x8e, 0x57, 0xe6, 0x64, 0x35,
  70. 0xf0, 0xc7, 0x16, 0x9f, 0x5d, 0x5e, 0x86, 0x40,
  71. 0x46, 0xbb, 0xe5, 0x45, 0x88, 0xfe, 0xc9, 0x63,
  72. 0x15, 0xfb, 0xf5, 0xbd, 0x71, 0x61, 0xeb, 0x7b,
  73. 0x78, 0x70, 0x07, 0x31, 0x03, 0x9f, 0xb2, 0xc8,
  74. 0xa7, 0xab, 0x47, 0xfd, 0xdf, 0xa0, 0x78, 0x72,
  75. 0xa4, 0x2a, 0xe4, 0xb6, 0xba, 0xc0, 0x1e, 0x86,
  76. 0x71, 0xe6, 0x3d, 0x18, 0x37, 0x70, 0xe6, 0xff,
  77. 0xe0, 0xbc, 0x0b, 0x22, 0xa0, 0x1f, 0xd3, 0xed,
  78. 0xa2, 0x55, 0x39, 0xab, 0xa8, 0x13, 0x73, 0x7c,
  79. 0x3f, 0xb2, 0xd6, 0x19, 0xac, 0xff, 0x99, 0xed,
  80. 0xe8, 0xe6, 0xa6, 0x22, 0xe3, 0x9c, 0xf1, 0x30,
  81. 0xdc, 0x01, 0x0a, 0x56, 0xfa, 0xe4, 0xc9, 0x99,
  82. 0xdd, 0xa8, 0xd8, 0xda, 0x35, 0x51, 0x73, 0xb4,
  83. 0x40, 0x86, 0x85, 0xdb, 0x5c, 0xd5, 0x85, 0x80,
  84. 0x14, 0x9c, 0xfd, 0x98, 0xa9, 0x82, 0xc5, 0x37,
  85. 0xff, 0x32, 0x5d, 0xd0, 0x0b, 0xfa, 0xdc, 0x04,
  86. 0x5e, 0x09, 0xd2, 0xca, 0x17, 0x4b, 0x1a, 0x8e,
  87. 0x15, 0xe1, 0xcc, 0x4e, 0x52, 0x88, 0x35, 0xbd,
  88. 0x48, 0xfe, 0x15, 0xa0, 0x91, 0xfd, 0x7e, 0x6c,
  89. 0x0e, 0x5d, 0x79, 0x1b, 0x81, 0x79, 0xd2, 0x09,
  90. 0x34, 0x70, 0x3d, 0x81, 0xec, 0xf6, 0x24, 0xbb,
  91. 0xfb, 0xf1, 0x7b, 0xdf, 0x54, 0xea, 0x80, 0x9b,
  92. 0xc7, 0x99, 0x9e, 0xbd, 0x16, 0x78, 0x12, 0x53,
  93. 0x5e, 0x01, 0xa7, 0x4e, 0xbd, 0x67, 0xe1, 0x9b,
  94. 0x4c, 0x0e, 0x61, 0x45, 0x97, 0xd2, 0xf0, 0x0f,
  95. 0xfe, 0x15, 0x08, 0xb7, 0x11, 0x4c, 0xe7, 0xff,
  96. 0x81, 0x53, 0xff, 0x91, 0x25, 0x38, 0x7e, 0x40,
  97. 0x94, 0xe5, 0xe0, 0xad, 0xe6, 0xd9, 0x79, 0xb6,
  98. 0x92, 0xc9, 0xfc, 0xde, 0xc3, 0x1a, 0x23, 0xbb,
  99. 0xdd, 0xc8, 0x51, 0x0c, 0x3a, 0x72, 0xfa, 0x73,
  100. 0x6f, 0xb7, 0xee, 0x61, 0x39, 0x03, 0x01, 0x3f,
  101. 0x7f, 0x94, 0x2e, 0x2e, 0xba, 0x3a, 0xbb, 0xb4,
  102. 0xfa, 0x6a, 0x17, 0xfe, 0xea, 0xef, 0x5e, 0x66,
  103. 0x97, 0x3f, 0x32, 0x3d, 0xd7, 0x3e, 0xb1, 0xf1,
  104. 0x6c, 0x14, 0x4c, 0xfd, 0x37, 0xd3, 0x38, 0x80,
  105. 0xfb, 0xde, 0xa6, 0x24, 0x1e, 0xc8, 0xca, 0x7f,
  106. 0x3a, 0x93, 0xd8, 0x8b, 0x18, 0x13, 0xb2, 0xe5,
  107. 0xe4, 0x93, 0x05, 0x53, 0x4f, 0x84, 0x66, 0xa7,
  108. 0x58, 0x5c, 0x7b, 0x86, 0x52, 0x6d, 0x0d, 0xce,
  109. 0xa4, 0x30, 0x7d, 0xb6, 0x18, 0x9f, 0xeb, 0xff,
  110. 0x22, 0xbb, 0x72, 0x29, 0xb9, 0x44, 0x0b, 0x48,
  111. 0x1e, 0x84, 0x71, 0x81, 0xe3, 0x6d, 0x73, 0x26,
  112. 0x92, 0xb4, 0x4d, 0x2a, 0x29, 0xb8, 0x1f, 0x72,
  113. 0xed, 0xd0, 0xe1, 0x64, 0x77, 0xea, 0x8e, 0x88,
  114. 0x0f, 0xef, 0x3f, 0xb1, 0x3b, 0xad, 0xf9, 0xc9,
  115. 0x8b, 0xd0, 0xac, 0xc6, 0xcc, 0xa9, 0x40, 0xcc,
  116. 0x76, 0xf6, 0x3b, 0x53, 0xb5, 0x88, 0xcb, 0xc8,
  117. 0x37, 0xf1, 0xa2, 0xba, 0x23, 0x15, 0x99, 0x09,
  118. 0xcc, 0xe7, 0x7a, 0x3b, 0x37, 0xf7, 0x58, 0xc8,
  119. 0x46, 0x8c, 0x2b, 0x2f, 0x4e, 0x0e, 0xa6, 0x5c,
  120. 0xea, 0x85, 0x55, 0xba, 0x02, 0x0e, 0x0e, 0x48,
  121. 0xbc, 0xe1, 0xb1, 0x01, 0x35, 0x79, 0x13, 0x3d,
  122. 0x1b, 0xc0, 0x53, 0x68, 0x11, 0xe7, 0x95, 0x0f,
  123. 0x9d, 0x3f, 0x4c, 0x47, 0x7b, 0x4d, 0x1c, 0xae,
  124. 0x50, 0x9b, 0xcb, 0xdd, 0x05, 0x8d, 0x9a, 0x97,
  125. 0xfd, 0x8c, 0xef, 0x0c, 0x1d, 0x67, 0x73, 0xa8,
  126. 0x28, 0x36, 0xd5, 0xb6, 0x92, 0x33, 0x40, 0x75,
  127. 0x0b, 0x51, 0xc3, 0x64, 0xba, 0x1d, 0xc2, 0xcc,
  128. 0xee, 0x7d, 0x54, 0x0f, 0x27, 0x69, 0xa7, 0x27,
  129. 0x63, 0x30, 0x29, 0xd9, 0xc8, 0x84, 0xd8, 0xdf,
  130. 0x9f, 0x68, 0x8d, 0x04, 0xca, 0xa6, 0xc5, 0xc7,
  131. 0x7a, 0x5c, 0xc8, 0xd1, 0xcb, 0x4a, 0xec, 0xd0,
  132. 0xd8, 0x20, 0x69, 0xc5, 0x17, 0xcd, 0x78, 0xc8,
  133. 0x75, 0x23, 0x30, 0x69, 0xc9, 0xd4, 0xea, 0x5c,
  134. 0x4f, 0x6b, 0x86, 0x3f, 0x8b, 0xfe, 0xee, 0x44,
  135. 0xc9, 0x7c, 0xb7, 0xdd, 0x3e, 0xe5, 0xec, 0x54,
  136. 0x03, 0x3e, 0xaa, 0x82, 0xc6, 0xdf, 0xb2, 0x38,
  137. 0x0e, 0x5d, 0xb3, 0x88, 0xd9, 0xd3, 0x69, 0x5f,
  138. 0x8f, 0x70, 0x8a, 0x7e, 0x11, 0xd9, 0x1e, 0x7b,
  139. 0x38, 0xf1, 0x42, 0x1a, 0xc0, 0x35, 0xf5, 0xc7,
  140. 0x36, 0x85, 0xf5, 0xf7, 0xb8, 0x7e, 0xc7, 0xef,
  141. 0x18, 0xf1, 0x63, 0xd6, 0x7a, 0xc6, 0xc9, 0x0e,
  142. 0x4d, 0x69, 0x4f, 0x84, 0xef, 0x26, 0x41, 0x0c,
  143. 0xec, 0xc7, 0xe0, 0x7e, 0x3c, 0x67, 0x01, 0x4c,
  144. 0x62, 0x1a, 0x20, 0x6f, 0xee, 0x47, 0x4d, 0xc0,
  145. 0x99, 0x13, 0x8d, 0x91, 0x4a, 0x26, 0xd4, 0x37,
  146. 0x28, 0x90, 0x58, 0x75, 0x66, 0x2b, 0x0a, 0xdf,
  147. 0xda, 0xee, 0x92, 0x25, 0x90, 0x62, 0x39, 0x9e,
  148. 0x44, 0x98, 0xad, 0xc1, 0x88, 0xed, 0xe4, 0xb4,
  149. 0xaf, 0xf5, 0x8c, 0x9b, 0x48, 0x4d, 0x56, 0x60,
  150. 0x97, 0x0f, 0x61, 0x59, 0x9e, 0xa6, 0x27, 0xfe,
  151. 0xc1, 0x91, 0x15, 0x38, 0xb8, 0x0f, 0xae, 0x61,
  152. 0x7d, 0x26, 0x13, 0x5a, 0x73, 0xff, 0x1c, 0xa3,
  153. 0x61, 0x04, 0x58, 0x48, 0x55, 0x44, 0x11, 0xfe,
  154. 0x15, 0xca, 0xc3, 0xbd, 0xca, 0xc5, 0xb4, 0x40,
  155. 0x5d, 0x1b, 0x7f, 0x39, 0xb5, 0x9c, 0x35, 0xec,
  156. 0x61, 0x15, 0x32, 0x32, 0xb8, 0x4e, 0x40, 0x9f,
  157. 0x17, 0x1f, 0x0a, 0x4d, 0xa9, 0x91, 0xef, 0xb7,
  158. 0xb0, 0xeb, 0xc2, 0x83, 0x9a, 0x6c, 0xd2, 0x79,
  159. 0x43, 0x78, 0x5e, 0x2f, 0xe5, 0xdd, 0x1a, 0x3c,
  160. 0x45, 0xab, 0x29, 0x40, 0x3a, 0x37, 0x5b, 0x6f,
  161. 0xd7, 0xfc, 0x48, 0x64, 0x3c, 0x49, 0xfb, 0x21,
  162. 0xbe, 0xc3, 0xff, 0x07, 0xfb, 0x17, 0xe9, 0xc9,
  163. 0x0c, 0x4c, 0x5c, 0x15, 0x9e, 0x8e, 0x22, 0x30,
  164. 0x0a, 0xde, 0x48, 0x7f, 0xdb, 0x0d, 0xd1, 0x2b,
  165. 0x87, 0x38, 0x9e, 0xcc, 0x5a, 0x01, 0x16, 0xee,
  166. 0x75, 0x49, 0x0d, 0x30, 0x01, 0x34, 0x6a, 0xb6,
  167. 0x9a, 0x5a, 0x2a, 0xec, 0xbb, 0x48, 0xac, 0xd3,
  168. 0x77, 0x83, 0xd8, 0x08, 0x86, 0x4f, 0x48, 0x09,
  169. 0x29, 0x41, 0x79, 0xa1, 0x03, 0x12, 0xc4, 0xcd,
  170. 0x90, 0x55, 0x47, 0x66, 0x74, 0x9a, 0xcc, 0x4f,
  171. 0x35, 0x8c, 0xd6, 0x98, 0xef, 0xeb, 0x45, 0xb9,
  172. 0x9a, 0x26, 0x2f, 0x39, 0xa5, 0x70, 0x6d, 0xfc,
  173. 0xb4, 0x51, 0xee, 0xf4, 0x9c, 0xe7, 0x38, 0x59,
  174. 0xad, 0xf4, 0xbc, 0x46, 0xff, 0x46, 0x8e, 0x60,
  175. 0x9c, 0xa3, 0x60, 0x1d, 0xf8, 0x26, 0x72, 0xf5,
  176. 0x72, 0x9d, 0x68, 0x80, 0x04, 0xf6, 0x0b, 0xa1,
  177. 0x0a, 0xd5, 0xa7, 0x82, 0x3a, 0x3e, 0x47, 0xa8,
  178. 0x5a, 0xde, 0x59, 0x4f, 0x7b, 0x07, 0xb3, 0xe9,
  179. 0x24, 0x19, 0x3d, 0x34, 0x05, 0xec, 0xf1, 0xab,
  180. 0x6e, 0x64, 0x8f, 0xd3, 0xe6, 0x41, 0x86, 0x80,
  181. 0x70, 0xe3, 0x8d, 0x60, 0x9c, 0x34, 0x25, 0x01,
  182. 0x07, 0x4d, 0x19, 0x41, 0x4e, 0x3d, 0x5c, 0x7e,
  183. 0xa8, 0xf5, 0xcc, 0xd5, 0x7b, 0xe2, 0x7d, 0x3d,
  184. 0x49, 0x86, 0x7d, 0x07, 0xb7, 0x10, 0xe3, 0x35,
  185. 0xb8, 0x84, 0x6d, 0x76, 0xab, 0x17, 0xc6, 0x38,
  186. 0xb4, 0xd3, 0x28, 0x57, 0xad, 0xd3, 0x88, 0x5a,
  187. 0xda, 0xea, 0xc8, 0x94, 0xcc, 0x37, 0x19, 0xac,
  188. 0x9c, 0x9f, 0x4b, 0x00, 0x15, 0xc0, 0xc8, 0xca,
  189. 0x1f, 0x15, 0xaa, 0xe0, 0xdb, 0xf9, 0x2f, 0x57,
  190. 0x1b, 0x24, 0xc7, 0x6f, 0x76, 0x29, 0xfb, 0xed,
  191. 0x25, 0x0d, 0xc0, 0xfe, 0xbd, 0x5a, 0xbf, 0x20,
  192. 0x08, 0x51, 0x05, 0xec, 0x71, 0xa3, 0xbf, 0xef,
  193. 0x5e, 0x99, 0x75, 0xdb, 0x3c, 0x5f, 0x9a, 0x8c,
  194. 0xbb, 0x19, 0x5c, 0x0e, 0x93, 0x19, 0xf8, 0x6a,
  195. 0xbc, 0xf2, 0x12, 0x54, 0x2f, 0xcb, 0x28, 0x64,
  196. 0x88, 0xb3, 0x92, 0x0d, 0x96, 0xd1, 0xa6, 0xe4,
  197. 0x1f, 0xf1, 0x4d, 0xa4, 0xab, 0x1c, 0xee, 0x54,
  198. 0xf2, 0xad, 0x29, 0x6d, 0x32, 0x37, 0xb2, 0x16,
  199. 0x77, 0x5c, 0xdc, 0x2e, 0x54, 0xec, 0x75, 0x26,
  200. 0xc6, 0x36, 0xd9, 0x17, 0x2c, 0xf1, 0x7a, 0xdc,
  201. 0x4b, 0xf1, 0xe2, 0xd9, 0x95, 0xba, 0xac, 0x87,
  202. 0xc1, 0xf3, 0x8e, 0x58, 0x08, 0xd8, 0x87, 0x60,
  203. 0xc9, 0xee, 0x6a, 0xde, 0xa4, 0xd2, 0xfc, 0x0d,
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  410. 0x2b, 0x89, 0x20, 0x11, 0x84, 0x48, 0xd6, 0x3a,
  411. 0xcd, 0x5c, 0x24, 0xad, 0x62, 0xe3, 0xb1, 0x93,
  412. 0x25, 0x8d, 0xcd, 0x7e, 0xfc, 0x27, 0xa3, 0x37,
  413. 0xfd, 0x84, 0xfc, 0x1b, 0xb2, 0xf1, 0x27, 0x38,
  414. 0x5a, 0xb7, 0xfc, 0xf2, 0xfa, 0x95, 0x66, 0xd4,
  415. 0xfb, 0xba, 0xa7, 0xd7, 0xa3, 0x72, 0x69, 0x48,
  416. 0x48, 0x8c, 0xeb, 0x28, 0x89, 0xfe, 0x33, 0x65,
  417. 0x5a, 0x36, 0x01, 0x7e, 0x06, 0x79, 0x0a, 0x09,
  418. 0x3b, 0x74, 0x11, 0x9a, 0x6e, 0xbf, 0xd4, 0x9e,
  419. 0x58, 0x90, 0x49, 0x4f, 0x4d, 0x08, 0xd4, 0xe5,
  420. 0x4a, 0x09, 0x21, 0xef, 0x8b, 0xb8, 0x74, 0x3b,
  421. 0x91, 0xdd, 0x36, 0x85, 0x60, 0x2d, 0xfa, 0xd4,
  422. 0x45, 0x7b, 0x45, 0x53, 0xf5, 0x47, 0x87, 0x7e,
  423. 0xa6, 0x37, 0xc8, 0x78, 0x7a, 0x68, 0x9d, 0x8d,
  424. 0x65, 0x2c, 0x0e, 0x91, 0x5c, 0xa2, 0x60, 0xf0,
  425. 0x8e, 0x3f, 0xe9, 0x1a, 0xcd, 0xaa, 0xe7, 0xd5,
  426. 0x77, 0x18, 0xaf, 0xc9, 0xbc, 0x18, 0xea, 0x48,
  427. 0x1b, 0xfb, 0x22, 0x48, 0x70, 0x16, 0x29, 0x9e,
  428. 0x5b, 0xc1, 0x2c, 0x66, 0x23, 0xbc, 0xf0, 0x1f,
  429. 0xef, 0xaf, 0xe4, 0xd6, 0x04, 0x19, 0x82, 0x7a,
  430. 0x0b, 0xba, 0x4b, 0x46, 0xb1, 0x6a, 0x85, 0x5d,
  431. 0xb4, 0x73, 0xd6, 0x21, 0xa1, 0x71, 0x60, 0x14,
  432. 0xee, 0x0a, 0x77, 0xc4, 0x66, 0x2e, 0xf9, 0x69,
  433. 0x30, 0xaf, 0x41, 0x0b, 0xc8, 0x83, 0x3c, 0x53,
  434. 0x99, 0x19, 0x27, 0x46, 0xf7, 0x41, 0x6e, 0x56,
  435. 0xdc, 0x94, 0x28, 0x67, 0x4e, 0xb7, 0x25, 0x48,
  436. 0x8a, 0xc2, 0xe0, 0x60, 0x96, 0xcc, 0x18, 0xf4,
  437. 0x84, 0xdd, 0xa7, 0x5e, 0x3e, 0x05, 0x0b, 0x26,
  438. 0x26, 0xb2, 0x5c, 0x1f, 0x57, 0x1a, 0x04, 0x7e,
  439. 0x6a, 0xe3, 0x2f, 0xb4, 0x35, 0xb6, 0x38, 0x40,
  440. 0x40, 0xcd, 0x6f, 0x87, 0x2e, 0xef, 0xa3, 0xd7,
  441. 0xa9, 0xc2, 0xe8, 0x0d, 0x27, 0xdf, 0x44, 0x62,
  442. 0x99, 0xa0, 0xfc, 0xcf, 0x81, 0x78, 0xcb, 0xfe,
  443. 0xe5, 0xa0, 0x03, 0x4e, 0x6c, 0xd7, 0xf4, 0xaf,
  444. 0x7a, 0xbb, 0x61, 0x82, 0xfe, 0x71, 0x89, 0xb2,
  445. 0x22, 0x7c, 0x8e, 0x83, 0x04, 0xce, 0xf6, 0x5d,
  446. 0x84, 0x8f, 0x95, 0x6a, 0x7f, 0xad, 0xfd, 0x32,
  447. 0x9c, 0x5e, 0xe4, 0x9c, 0x89, 0x60, 0x54, 0xaa,
  448. 0x96, 0x72, 0xd2, 0xd7, 0x36, 0x85, 0xa9, 0x45,
  449. 0xd2, 0x2a, 0xa1, 0x81, 0x49, 0x6f, 0x7e, 0x04,
  450. 0xfa, 0xe2, 0xfe, 0x90, 0x26, 0x77, 0x5a, 0x33,
  451. 0xb8, 0x04, 0x9a, 0x7a, 0xe6, 0x4c, 0x4f, 0xad,
  452. 0x72, 0x96, 0x08, 0x28, 0x58, 0x13, 0xf8, 0xc4,
  453. 0x1c, 0xf0, 0xc3, 0x45, 0x95, 0x49, 0x20, 0x8c,
  454. 0x9f, 0x39, 0x70, 0xe1, 0x77, 0xfe, 0xd5, 0x4b,
  455. 0xaf, 0x86, 0xda, 0xef, 0x22, 0x06, 0x83, 0x36,
  456. 0x29, 0x12, 0x11, 0x40, 0xbc, 0x3b, 0x86, 0xaa,
  457. 0xaa, 0x65, 0x60, 0xc3, 0x80, 0xca, 0xed, 0xa9,
  458. 0xf3, 0xb0, 0x79, 0x96, 0xa2, 0x55, 0x27, 0x28,
  459. 0x55, 0x73, 0x26, 0xa5, 0x50, 0xea, 0x92, 0x4b,
  460. 0x3c, 0x5c, 0x82, 0x33, 0xf0, 0x01, 0x3f, 0x03,
  461. 0xc1, 0x08, 0x05, 0xbf, 0x98, 0xf4, 0x9b, 0x6d,
  462. 0xa5, 0xa8, 0xb4, 0x82, 0x0c, 0x06, 0xfa, 0xff,
  463. 0x2d, 0x08, 0xf3, 0x05, 0x4f, 0x57, 0x2a, 0x39,
  464. 0xd4, 0x83, 0x0d, 0x75, 0x51, 0xd8, 0x5b, 0x1b,
  465. 0xd3, 0x51, 0x5a, 0x32, 0x2a, 0x9b, 0x32, 0xb2,
  466. 0xf2, 0xa4, 0x96, 0x12, 0xf2, 0xae, 0x40, 0x34,
  467. 0x67, 0xa8, 0xf5, 0x44, 0xd5, 0x35, 0x53, 0xfe,
  468. 0xa3, 0x60, 0x96, 0x63, 0x0f, 0x1f, 0x6e, 0xb0,
  469. 0x5a, 0x42, 0xa6, 0xfc, 0x51, 0x0b, 0x60, 0x27,
  470. 0xbc, 0x06, 0x71, 0xed, 0x65, 0x5b, 0x23, 0x86,
  471. 0x4a, 0x07, 0x3b, 0x22, 0x07, 0x46, 0xe6, 0x90,
  472. 0x3e, 0xf3, 0x25, 0x50, 0x1b, 0x4c, 0x7f, 0x03,
  473. 0x08, 0xa8, 0x36, 0x6b, 0x87, 0xe5, 0xe3, 0xdb,
  474. 0x9a, 0x38, 0x83, 0xff, 0x9f, 0x1a, 0x9f, 0x57,
  475. 0xa4, 0x2a, 0xf6, 0x37, 0xbc, 0x1a, 0xff, 0xc9,
  476. 0x1e, 0x35, 0x0c, 0xc3, 0x7c, 0xa3, 0xb2, 0xe5,
  477. 0xd2, 0xc6, 0xb4, 0x57, 0x47, 0xe4, 0x32, 0x16,
  478. 0x6d, 0xa9, 0xae, 0x64, 0xe6, 0x2d, 0x8d, 0xc5,
  479. 0x8d, 0x50, 0x8e, 0xe8, 0x1a, 0x22, 0x34, 0x2a,
  480. 0xd9, 0xeb, 0x51, 0x90, 0x4a, 0xb1, 0x41, 0x7d,
  481. 0x64, 0xf9, 0xb9, 0x0d, 0xf6, 0x23, 0x33, 0xb0,
  482. 0x33, 0xf4, 0xf7, 0x3f, 0x27, 0x84, 0xc6, 0x0f,
  483. 0x54, 0xa5, 0xc0, 0x2e, 0xec, 0x0b, 0x3a, 0x48,
  484. 0x6e, 0x80, 0x35, 0x81, 0x43, 0x9b, 0x90, 0xb1,
  485. 0xd0, 0x2b, 0xea, 0x21, 0xdc, 0xda, 0x5b, 0x09,
  486. 0xf4, 0xcc, 0x10, 0xb4, 0xc7, 0xfe, 0x79, 0x51,
  487. 0xc3, 0xc5, 0xac, 0x88, 0x74, 0x84, 0x0b, 0x4b,
  488. 0xca, 0x79, 0x16, 0x29, 0xfb, 0x69, 0x54, 0xdf,
  489. 0x41, 0x7e, 0xe9, 0xc7, 0x8e, 0xea, 0xa5, 0xfe,
  490. 0xfc, 0x76, 0x0e, 0x90, 0xc4, 0x92, 0x38, 0xad,
  491. 0x7b, 0x48, 0xe6, 0x6e, 0xf7, 0x21, 0xfd, 0x4e,
  492. 0x93, 0x0a, 0x7b, 0x41, 0x83, 0x68, 0xfb, 0x57,
  493. 0x51, 0x76, 0x34, 0xa9, 0x6c, 0x00, 0xaa, 0x4f,
  494. 0x66, 0x65, 0x98, 0x4a, 0x4f, 0xa3, 0xa0, 0xef,
  495. 0x69, 0x3f, 0xe3, 0x1c, 0x92, 0x8c, 0xfd, 0xd8,
  496. 0xe8, 0xde, 0x7c, 0x7f, 0x3e, 0x84, 0x8e, 0x69,
  497. 0x3c, 0xf1, 0xf2, 0x05, 0x46, 0xdc, 0x2f, 0x9d,
  498. 0x5e, 0x6e, 0x4c, 0xfb, 0xb5, 0x99, 0x2a, 0x59,
  499. 0x63, 0xc1, 0x34, 0xbc, 0x57, 0xc0, 0x0d, 0xb9,
  500. 0x61, 0x25, 0xf3, 0x33, 0x23, 0x51, 0xb6, 0x0d,
  501. 0x07, 0xa6, 0xab, 0x94, 0x4a, 0xb7, 0x2a, 0xea,
  502. 0xee, 0xac, 0xa3, 0xc3, 0x04, 0x8b, 0x0e, 0x56,
  503. 0xfe, 0x44, 0xa7, 0x39, 0xe2, 0xed, 0xed, 0xb4,
  504. 0x22, 0x2b, 0xac, 0x12, 0x32, 0x28, 0x91, 0xd8,
  505. 0xa5, 0xab, 0xff, 0x5f, 0xe0, 0x4b, 0xda, 0x78,
  506. 0x17, 0xda, 0xf1, 0x01, 0x5b, 0xcd, 0xe2, 0x5f,
  507. 0x50, 0x45, 0x73, 0x2b, 0xe4, 0x76, 0x77, 0xf4,
  508. 0x64, 0x1d, 0x43, 0xfb, 0x84, 0x7a, 0xea, 0x91,
  509. 0xae, 0xf9, 0x9e, 0xb7, 0xb4, 0xb0, 0x91, 0x5f,
  510. 0x16, 0x35, 0x9a, 0x11, 0xb8, 0xc7, 0xc1, 0x8c,
  511. 0xc6, 0x10, 0x8d, 0x2f, 0x63, 0x4a, 0xa7, 0x57,
  512. 0x3a, 0x51, 0xd6, 0x32, 0x2d, 0x64, 0x72, 0xd4,
  513. 0x66, 0xdc, 0x10, 0xa6, 0x67, 0xd6, 0x04, 0x23,
  514. 0x9d, 0x0a, 0x11, 0x77, 0xdd, 0x37, 0x94, 0x17,
  515. 0x3c, 0xbf, 0x8b, 0x65, 0xb0, 0x2e, 0x5e, 0x66,
  516. 0x47, 0x64, 0xac, 0xdd, 0xf0, 0x84, 0xfd, 0x39,
  517. 0xfa, 0x15, 0x5d, 0xef, 0xae, 0xca, 0xc1, 0x36,
  518. 0xa7, 0x5c, 0xbf, 0xc7, 0x08, 0xc2, 0x66, 0x00,
  519. 0x74, 0x74, 0x4e, 0x27, 0x3f, 0x55, 0x8a, 0xb7,
  520. 0x38, 0x66, 0x83, 0x6d, 0xcf, 0x99, 0x9e, 0x60,
  521. 0x8f, 0xdd, 0x2e, 0x62, 0x22, 0x0e, 0xef, 0x0c,
  522. 0x98, 0xa7, 0x85, 0x74, 0x3b, 0x9d, 0xec, 0x9e,
  523. 0xa9, 0x19, 0x72, 0xa5, 0x7f, 0x2c, 0x39, 0xb7,
  524. 0x7d, 0xb7, 0xf1, 0x12, 0x65, 0x27, 0x4b, 0x5a,
  525. 0xde, 0x17, 0xfe, 0xad, 0x44, 0xf3, 0x20, 0x4d,
  526. 0xfd, 0xe4, 0x1f, 0xb5, 0x81, 0xb0, 0x36, 0x37,
  527. 0x08, 0x6f, 0xc3, 0x0c, 0xe9, 0x85, 0x98, 0x82,
  528. 0xa9, 0x62, 0x0c, 0xc4, 0x97, 0xc0, 0x50, 0xc8,
  529. 0xa7, 0x3c, 0x50, 0x9f, 0x43, 0xb9, 0xcd, 0x5e,
  530. 0x4d, 0xfa, 0x1c, 0x4b, 0x0b, 0xa9, 0x98, 0x85,
  531. 0x38, 0x92, 0xac, 0x8d, 0xe4, 0xad, 0x9b, 0x98,
  532. 0xab, 0xd9, 0x38, 0xac, 0x62, 0x52, 0xa3, 0x22,
  533. 0x63, 0x0f, 0xbf, 0x95, 0x48, 0xdf, 0x69, 0xe7,
  534. 0x8b, 0x33, 0xd5, 0xb2, 0xbd, 0x05, 0x49, 0x49,
  535. 0x9d, 0x57, 0x73, 0x19, 0x33, 0xae, 0xfa, 0x33,
  536. 0xf1, 0x19, 0xa8, 0x80, 0xce, 0x04, 0x9f, 0xbc,
  537. 0x1d, 0x65, 0x82, 0x1b, 0xe5, 0x3a, 0x51, 0xc8,
  538. 0x1c, 0x21, 0xe3, 0x5d, 0xf3, 0x7d, 0x9b, 0x2f,
  539. 0x2c, 0x1d, 0x4a, 0x7f, 0x9b, 0x68, 0x35, 0xa3,
  540. 0xb2, 0x50, 0xf7, 0x62, 0x79, 0xcd, 0xf4, 0x98,
  541. 0x4f, 0xe5, 0x63, 0x7c, 0x3e, 0x45, 0x31, 0x8c,
  542. 0x16, 0xa0, 0x12, 0xc8, 0x58, 0xce, 0x39, 0xa6,
  543. 0xbc, 0x54, 0xdb, 0xc5, 0xe0, 0xd5, 0xba, 0xbc,
  544. 0xb9, 0x04, 0xf4, 0x8d, 0xe8, 0x2f, 0x15, 0x9d,
  545. };
  546. /* 100 test cases */
  547. static struct crc_test {
  548. u32 crc; /* random starting crc */
  549. u32 start; /* random 6 bit offset in buf */
  550. u32 length; /* random 11 bit length of test */
  551. u32 crc_le; /* expected crc32_le result */
  552. u32 crc_be; /* expected crc32_be result */
  553. u32 crc32c_le; /* expected crc32c_le result */
  554. } const test[] __initconst =
  555. {
  556. {0x674bf11d, 0x00000038, 0x00000542, 0x0af6d466, 0xd8b6e4c1, 0xf6e93d6c},
  557. {0x35c672c6, 0x0000003a, 0x000001aa, 0xc6d3dfba, 0x28aaf3ad, 0x0fe92aca},
  558. {0x496da28e, 0x00000039, 0x000005af, 0xd933660f, 0x5d57e81f, 0x52e1ebb8},
  559. {0x09a9b90e, 0x00000027, 0x000001f8, 0xb45fe007, 0xf45fca9a, 0x0798af9a},
  560. {0xdc97e5a9, 0x00000025, 0x000003b6, 0xf81a3562, 0xe0126ba2, 0x18eb3152},
  561. {0x47c58900, 0x0000000a, 0x000000b9, 0x8e58eccf, 0xf3afc793, 0xd00d08c7},
  562. {0x292561e8, 0x0000000c, 0x00000403, 0xa2ba8aaf, 0x0b797aed, 0x8ba966bc},
  563. {0x415037f6, 0x00000003, 0x00000676, 0xa17d52e8, 0x7f0fdf35, 0x11d694a2},
  564. {0x3466e707, 0x00000026, 0x00000042, 0x258319be, 0x75c484a2, 0x6ab3208d},
  565. {0xafd1281b, 0x00000023, 0x000002ee, 0x4428eaf8, 0x06c7ad10, 0xba4603c5},
  566. {0xd3857b18, 0x00000028, 0x000004a2, 0x5c430821, 0xb062b7cb, 0xe6071c6f},
  567. {0x1d825a8f, 0x0000002b, 0x0000050b, 0xd2c45f0c, 0xd68634e0, 0x179ec30a},
  568. {0x5033e3bc, 0x0000000b, 0x00000078, 0xa3ea4113, 0xac6d31fb, 0x0903beb8},
  569. {0x94f1fb5e, 0x0000000f, 0x000003a2, 0xfbfc50b1, 0x3cfe50ed, 0x6a7cb4fa},
  570. {0xc9a0fe14, 0x00000009, 0x00000473, 0x5fb61894, 0x87070591, 0xdb535801},
  571. {0x88a034b1, 0x0000001c, 0x000005ad, 0xc1b16053, 0x46f95c67, 0x92bed597},
  572. {0xf0f72239, 0x00000020, 0x0000026d, 0xa6fa58f3, 0xf8c2c1dd, 0x192a3f1b},
  573. {0xcc20a5e3, 0x0000003b, 0x0000067a, 0x7740185a, 0x308b979a, 0xccbaec1a},
  574. {0xce589c95, 0x0000002b, 0x00000641, 0xd055e987, 0x40aae25b, 0x7eabae4d},
  575. {0x78edc885, 0x00000035, 0x000005be, 0xa39cb14b, 0x035b0d1f, 0x28c72982},
  576. {0x9d40a377, 0x0000003b, 0x00000038, 0x1f47ccd2, 0x197fbc9d, 0xc3cd4d18},
  577. {0x703d0e01, 0x0000003c, 0x000006f1, 0x88735e7c, 0xfed57c5a, 0xbca8f0e7},
  578. {0x776bf505, 0x0000000f, 0x000005b2, 0x5cc4fc01, 0xf32efb97, 0x713f60b3},
  579. {0x4a3e7854, 0x00000027, 0x000004b8, 0x8d923c82, 0x0cbfb4a2, 0xebd08fd5},
  580. {0x209172dd, 0x0000003b, 0x00000356, 0xb89e9c2b, 0xd7868138, 0x64406c59},
  581. {0x3ba4cc5b, 0x0000002f, 0x00000203, 0xe51601a9, 0x5b2a1032, 0x7421890e},
  582. {0xfc62f297, 0x00000000, 0x00000079, 0x71a8e1a2, 0x5d88685f, 0xe9347603},
  583. {0x64280b8b, 0x00000016, 0x000007ab, 0x0fa7a30c, 0xda3a455f, 0x1bef9060},
  584. {0x97dd724b, 0x00000033, 0x000007ad, 0x5788b2f4, 0xd7326d32, 0x34720072},
  585. {0x61394b52, 0x00000035, 0x00000571, 0xc66525f1, 0xcabe7fef, 0x48310f59},
  586. {0x29b4faff, 0x00000024, 0x0000006e, 0xca13751e, 0x993648e0, 0x783a4213},
  587. {0x29bfb1dc, 0x0000000b, 0x00000244, 0x436c43f7, 0x429f7a59, 0x9e8efd41},
  588. {0x86ae934b, 0x00000035, 0x00000104, 0x0760ec93, 0x9cf7d0f4, 0xfc3d34a5},
  589. {0xc4c1024e, 0x0000002e, 0x000006b1, 0x6516a3ec, 0x19321f9c, 0x17a52ae2},
  590. {0x3287a80a, 0x00000026, 0x00000496, 0x0b257eb1, 0x754ebd51, 0x886d935a},
  591. {0xa4db423e, 0x00000023, 0x0000045d, 0x9b3a66dc, 0x873e9f11, 0xeaaeaeb2},
  592. {0x7a1078df, 0x00000015, 0x0000014a, 0x8c2484c5, 0x6a628659, 0x8e900a4b},
  593. {0x6048bd5b, 0x00000006, 0x0000006a, 0x897e3559, 0xac9961af, 0xd74662b1},
  594. {0xd8f9ea20, 0x0000003d, 0x00000277, 0x60eb905b, 0xed2aaf99, 0xd26752ba},
  595. {0xea5ec3b4, 0x0000002a, 0x000004fe, 0x869965dc, 0x6c1f833b, 0x8b1fcd62},
  596. {0x2dfb005d, 0x00000016, 0x00000345, 0x6a3b117e, 0xf05e8521, 0xf54342fe},
  597. {0x5a214ade, 0x00000020, 0x000005b6, 0x467f70be, 0xcb22ccd3, 0x5b95b988},
  598. {0xf0ab9cca, 0x00000032, 0x00000515, 0xed223df3, 0x7f3ef01d, 0x2e1176be},
  599. {0x91b444f9, 0x0000002e, 0x000007f8, 0x84e9a983, 0x5676756f, 0x66120546},
  600. {0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xba638c4c, 0x3f42047b, 0xf256a5cc},
  601. {0xd824d1bb, 0x0000003a, 0x000007b5, 0x6288653b, 0x3a3ebea0, 0x4af1dd69},
  602. {0x0470180c, 0x00000034, 0x000001f0, 0x9d5b80d6, 0x3de08195, 0x56f0a04a},
  603. {0xffaa3a3f, 0x00000036, 0x00000299, 0xf3a82ab8, 0x53e0c13d, 0x74f6b6b2},
  604. {0x6406cfeb, 0x00000023, 0x00000600, 0xa920b8e8, 0xe4e2acf4, 0x085951fd},
  605. {0xb24aaa38, 0x0000003e, 0x000004a1, 0x657cc328, 0x5077b2c3, 0xc65387eb},
  606. {0x58b2ab7c, 0x00000039, 0x000002b4, 0x3a17ee7e, 0x9dcb3643, 0x1ca9257b},
  607. {0x3db85970, 0x00000006, 0x000002b6, 0x95268b59, 0xb9812c10, 0xfd196d76},
  608. {0x857830c5, 0x00000003, 0x00000590, 0x4ef439d5, 0xf042161d, 0x5ef88339},
  609. {0xe1fcd978, 0x0000003e, 0x000007d8, 0xae8d8699, 0xce0a1ef5, 0x2c3714d9},
  610. {0xb982a768, 0x00000016, 0x000006e0, 0x62fad3df, 0x5f8a067b, 0x58576548},
  611. {0x1d581ce8, 0x0000001e, 0x0000058b, 0xf0f5da53, 0x26e39eee, 0xfd7c57de},
  612. {0x2456719b, 0x00000025, 0x00000503, 0x4296ac64, 0xd50e4c14, 0xd5fedd59},
  613. {0xfae6d8f2, 0x00000000, 0x0000055d, 0x057fdf2e, 0x2a31391a, 0x1cc3b17b},
  614. {0xcba828e3, 0x00000039, 0x000002ce, 0xe3f22351, 0x8f00877b, 0x270eed73},
  615. {0x13d25952, 0x0000000a, 0x0000072d, 0x76d4b4cc, 0x5eb67ec3, 0x91ecbb11},
  616. {0x0342be3f, 0x00000015, 0x00000599, 0xec75d9f1, 0x9d4d2826, 0x05ed8d0c},
  617. {0xeaa344e0, 0x00000014, 0x000004d8, 0x72a4c981, 0x2064ea06, 0x0b09ad5b},
  618. {0xbbb52021, 0x0000003b, 0x00000272, 0x04af99fc, 0xaf042d35, 0xf8d511fb},
  619. {0xb66384dc, 0x0000001d, 0x000007fc, 0xd7629116, 0x782bd801, 0x5ad832cc},
  620. {0x616c01b6, 0x00000022, 0x000002c8, 0x5b1dab30, 0x783ce7d2, 0x1214d196},
  621. {0xce2bdaad, 0x00000016, 0x0000062a, 0x932535c8, 0x3f02926d, 0x5747218a},
  622. {0x00fe84d7, 0x00000005, 0x00000205, 0x850e50aa, 0x753d649c, 0xde8f14de},
  623. {0xbebdcb4c, 0x00000006, 0x0000055d, 0xbeaa37a2, 0x2d8c9eba, 0x3563b7b9},
  624. {0xd8b1a02a, 0x00000010, 0x00000387, 0x5017d2fc, 0x503541a5, 0x071475d0},
  625. {0x3b96cad2, 0x00000036, 0x00000347, 0x1d2372ae, 0x926cd90b, 0x54c79d60},
  626. {0xc94c1ed7, 0x00000005, 0x0000038b, 0x9e9fdb22, 0x144a9178, 0x4c53eee6},
  627. {0x1aad454e, 0x00000025, 0x000002b2, 0xc3f6315c, 0x5c7a35b3, 0x10137a3c},
  628. {0xa4fec9a6, 0x00000000, 0x000006d6, 0x90be5080, 0xa4107605, 0xaa9d6c73},
  629. {0x1bbe71e2, 0x0000001f, 0x000002fd, 0x4e504c3b, 0x284ccaf1, 0xb63d23e7},
  630. {0x4201c7e4, 0x00000002, 0x000002b7, 0x7822e3f9, 0x0cc912a9, 0x7f53e9cf},
  631. {0x23fddc96, 0x00000003, 0x00000627, 0x8a385125, 0x07767e78, 0x13c1cd83},
  632. {0xd82ba25c, 0x00000016, 0x0000063e, 0x98e4148a, 0x283330c9, 0x49ff5867},
  633. {0x786f2032, 0x0000002d, 0x0000060f, 0xf201600a, 0xf561bfcd, 0x8467f211},
  634. {0xfebe4e1f, 0x0000002a, 0x000004f2, 0x95e51961, 0xfd80dcab, 0x3f9683b2},
  635. {0x1a6e0a39, 0x00000008, 0x00000672, 0x8af6c2a5, 0x78dd84cb, 0x76a3f874},
  636. {0x56000ab8, 0x0000000e, 0x000000e5, 0x36bacb8f, 0x22ee1f77, 0x863b702f},
  637. {0x4717fe0c, 0x00000000, 0x000006ec, 0x8439f342, 0x5c8e03da, 0xdc6c58ff},
  638. {0xd5d5d68e, 0x0000003c, 0x000003a3, 0x46fff083, 0x177d1b39, 0x0622cc95},
  639. {0xc25dd6c6, 0x00000024, 0x000006c0, 0x5ceb8eb4, 0x892b0d16, 0xe85605cd},
  640. {0xe9b11300, 0x00000023, 0x00000683, 0x07a5d59a, 0x6c6a3208, 0x31da5f06},
  641. {0x95cd285e, 0x00000001, 0x00000047, 0x7b3a4368, 0x0202c07e, 0xa1f2e784},
  642. {0xd9245a25, 0x0000001e, 0x000003a6, 0xd33c1841, 0x1936c0d5, 0xb07cc616},
  643. {0x103279db, 0x00000006, 0x0000039b, 0xca09b8a0, 0x77d62892, 0xbf943b6c},
  644. {0x1cba3172, 0x00000027, 0x000001c8, 0xcb377194, 0xebe682db, 0x2c01af1c},
  645. {0x8f613739, 0x0000000c, 0x000001df, 0xb4b0bc87, 0x7710bd43, 0x0fe5f56d},
  646. {0x1c6aa90d, 0x0000001b, 0x0000053c, 0x70559245, 0xda7894ac, 0xf8943b2d},
  647. {0xaabe5b93, 0x0000003d, 0x00000715, 0xcdbf42fa, 0x0c3b99e7, 0xe4d89272},
  648. {0xf15dd038, 0x00000006, 0x000006db, 0x6e104aea, 0x8d5967f2, 0x7c2f6bbb},
  649. {0x584dd49c, 0x00000020, 0x000007bc, 0x36b6cfd6, 0xad4e23b2, 0xabbf388b},
  650. {0x5d8c9506, 0x00000020, 0x00000470, 0x4c62378e, 0x31d92640, 0x1dca1f4e},
  651. {0xb80d17b0, 0x00000032, 0x00000346, 0x22a5bb88, 0x9a7ec89f, 0x5c170e23},
  652. {0xdaf0592e, 0x00000023, 0x000007b0, 0x3cab3f99, 0x9b1fdd99, 0xc0e9d672},
  653. {0x4793cc85, 0x0000000d, 0x00000706, 0xe82e04f6, 0xed3db6b7, 0xc18bdc86},
  654. {0x82ebf64e, 0x00000009, 0x000007c3, 0x69d590a9, 0x9efa8499, 0xa874fcdd},
  655. {0xb18a0319, 0x00000026, 0x000007db, 0x1cf98dcc, 0x8fa9ad6a, 0x9dc0bb48},
  656. };
  657. #include <linux/time.h>
  658. static int __init crc32c_test(void)
  659. {
  660. int i;
  661. int errors = 0;
  662. int bytes = 0;
  663. u64 nsec;
  664. unsigned long flags;
  665. /* keep static to prevent cache warming code from
  666. * getting eliminated by the compiler */
  667. static u32 crc;
  668. /* pre-warm the cache */
  669. for (i = 0; i < 100; i++) {
  670. bytes += 2*test[i].length;
  671. crc ^= __crc32c_le(test[i].crc, test_buf +
  672. test[i].start, test[i].length);
  673. }
  674. /* reduce OS noise */
  675. local_irq_save(flags);
  676. nsec = ktime_get_ns();
  677. for (i = 0; i < 100; i++) {
  678. if (test[i].crc32c_le != __crc32c_le(test[i].crc, test_buf +
  679. test[i].start, test[i].length))
  680. errors++;
  681. }
  682. nsec = ktime_get_ns() - nsec;
  683. local_irq_restore(flags);
  684. pr_info("crc32c: CRC_LE_BITS = %d\n", CRC_LE_BITS);
  685. if (errors)
  686. pr_warn("crc32c: %d self tests failed\n", errors);
  687. else {
  688. pr_info("crc32c: self tests passed, processed %d bytes in %lld nsec\n",
  689. bytes, nsec);
  690. }
  691. return 0;
  692. }
  693. static int __init crc32c_combine_test(void)
  694. {
  695. int i, j;
  696. int errors = 0, runs = 0;
  697. for (i = 0; i < 10; i++) {
  698. u32 crc_full;
  699. crc_full = __crc32c_le(test[i].crc, test_buf + test[i].start,
  700. test[i].length);
  701. for (j = 0; j <= test[i].length; ++j) {
  702. u32 crc1, crc2;
  703. u32 len1 = j, len2 = test[i].length - j;
  704. crc1 = __crc32c_le(test[i].crc, test_buf +
  705. test[i].start, len1);
  706. crc2 = __crc32c_le(0, test_buf + test[i].start +
  707. len1, len2);
  708. if (!(crc_full == __crc32c_le_combine(crc1, crc2, len2) &&
  709. crc_full == test[i].crc32c_le))
  710. errors++;
  711. runs++;
  712. cond_resched();
  713. }
  714. }
  715. if (errors)
  716. pr_warn("crc32c_combine: %d/%d self tests failed\n", errors, runs);
  717. else
  718. pr_info("crc32c_combine: %d self tests passed\n", runs);
  719. return 0;
  720. }
  721. static int __init crc32_test(void)
  722. {
  723. int i;
  724. int errors = 0;
  725. int bytes = 0;
  726. u64 nsec;
  727. unsigned long flags;
  728. /* keep static to prevent cache warming code from
  729. * getting eliminated by the compiler */
  730. static u32 crc;
  731. /* pre-warm the cache */
  732. for (i = 0; i < 100; i++) {
  733. bytes += 2*test[i].length;
  734. crc ^= crc32_le(test[i].crc, test_buf +
  735. test[i].start, test[i].length);
  736. crc ^= crc32_be(test[i].crc, test_buf +
  737. test[i].start, test[i].length);
  738. }
  739. /* reduce OS noise */
  740. local_irq_save(flags);
  741. nsec = ktime_get_ns();
  742. for (i = 0; i < 100; i++) {
  743. if (test[i].crc_le != crc32_le(test[i].crc, test_buf +
  744. test[i].start, test[i].length))
  745. errors++;
  746. if (test[i].crc_be != crc32_be(test[i].crc, test_buf +
  747. test[i].start, test[i].length))
  748. errors++;
  749. }
  750. nsec = ktime_get_ns() - nsec;
  751. local_irq_restore(flags);
  752. pr_info("crc32: CRC_LE_BITS = %d, CRC_BE BITS = %d\n",
  753. CRC_LE_BITS, CRC_BE_BITS);
  754. if (errors)
  755. pr_warn("crc32: %d self tests failed\n", errors);
  756. else {
  757. pr_info("crc32: self tests passed, processed %d bytes in %lld nsec\n",
  758. bytes, nsec);
  759. }
  760. return 0;
  761. }
  762. static int __init crc32_combine_test(void)
  763. {
  764. int i, j;
  765. int errors = 0, runs = 0;
  766. for (i = 0; i < 10; i++) {
  767. u32 crc_full;
  768. crc_full = crc32_le(test[i].crc, test_buf + test[i].start,
  769. test[i].length);
  770. for (j = 0; j <= test[i].length; ++j) {
  771. u32 crc1, crc2;
  772. u32 len1 = j, len2 = test[i].length - j;
  773. crc1 = crc32_le(test[i].crc, test_buf +
  774. test[i].start, len1);
  775. crc2 = crc32_le(0, test_buf + test[i].start +
  776. len1, len2);
  777. if (!(crc_full == crc32_le_combine(crc1, crc2, len2) &&
  778. crc_full == test[i].crc_le))
  779. errors++;
  780. runs++;
  781. cond_resched();
  782. }
  783. }
  784. if (errors)
  785. pr_warn("crc32_combine: %d/%d self tests failed\n", errors, runs);
  786. else
  787. pr_info("crc32_combine: %d self tests passed\n", runs);
  788. return 0;
  789. }
  790. static int __init crc32test_init(void)
  791. {
  792. crc32_test();
  793. crc32c_test();
  794. crc32_combine_test();
  795. crc32c_combine_test();
  796. return 0;
  797. }
  798. static void __exit crc32_exit(void)
  799. {
  800. }
  801. module_init(crc32test_init);
  802. module_exit(crc32_exit);
  803. MODULE_AUTHOR("Matt Domsch <Matt_Domsch@dell.com>");
  804. MODULE_DESCRIPTION("CRC32 selftest");
  805. MODULE_LICENSE("GPL");