Linux / Arch / Openrisc
Duplication

Places in code with 6 or more lines that are exactly the same.

Intro
  • For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
  • Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
  • You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.
Learn more...
Duplication Overall
  • 11% duplication:
    • 5,237 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 590 duplicated lines
  • 44 duplicates
system11% (590 lines)
Duplication per Extension
S15% (430 lines)
h11% (98 lines)
c3% (62 lines)
Duplication per Component (primary)
kernel12% (470 lines)
include11% (98 lines)
lib9% (22 lines)
mm0% (0 lines)
Longest Duplicates
The list of 44 longest duplicates.
See data for all 44 duplicates...
Size#FoldersFilesLinesCode
25 x 2 kernel
kernel
 150:174 (2%)
189:213 (2%)
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19 x 2 kernel
kernel
 72:91 (6%)
134:153 (6%)
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17 x 2 kernel
kernel
 1555:1575 (1%)
1623:1643 (1%)
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16 x 2 kernel
kernel
 1384:1402 (1%)
1435:1453 (1%)
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14 x 2 kernel
kernel
 470:483 (1%)
486:499 (1%)
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14 x 2 kernel
kernel
 534:547 (<1%)
662:675 (<1%)
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12 x 2 include/asm
include/asm
 17:28 (17%)
34:45 (17%)
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10 x 2 kernel
kernel
 1158:1167 (<1%)
1238:1247 (<1%)
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10 x 2 kernel
kernel
 1174:1183 (<1%)
1255:1264 (<1%)
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10 x 2 kernel
lib
 4:14 (<1%)
4:14 (11%)
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9 x 2 kernel
kernel
 1147:1155 (<1%)
1225:1234 (<1%)
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8 x 2 kernel
kernel
 4:11 (<1%)
4:11 (9%)
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8 x 2 kernel
lib
 4:11 (9%)
4:11 (9%)
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8 x 2 include/asm
include/asm
 155:162 (5%)
230:237 (5%)
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8 x 2 kernel
kernel
 525:532 (<1%)
654:661 (<1%)
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8 x 2 kernel
kernel
 450:457 (<1%)
460:467 (<1%)
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8 x 2 kernel
kernel
 721:728 (<1%)
1072:1079 (<1%)
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8 x 2 kernel
kernel
 1408:1418 (<1%)
1470:1480 (<1%)
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7 x 2 kernel
kernel
 4:10 (<1%)
4:10 (<1%)
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7 x 2 kernel
kernel
 4:10 (<1%)
4:10 (8%)
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7 x 2 include/asm
include/asm
 138:144 (4%)
207:213 (4%)
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7 x 2 kernel
kernel
 721:727 (<1%)
1153:1159 (<1%)
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7 x 2 kernel
kernel
 825:832 (<1%)
891:898 (<1%)
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7 x 2 kernel
lib
 4:10 (<1%)
4:10 (8%)
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7 x 2 kernel
kernel
 1072:1078 (<1%)
1153:1159 (<1%)
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7 x 2 include/asm/bitops
include/asm/bitops
 73:80 (8%)
113:120 (8%)
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7 x 2 kernel
kernel
 835:842 (<1%)
901:908 (<1%)
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6 x 2 kernel
kernel
 548:553 (<1%)
677:682 (<1%)
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6 x 2 kernel
kernel
 614:619 (<1%)
620:625 (<1%)
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6 x 2 kernel
kernel
 1023:1029 (<1%)
1116:1122 (<1%)
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6 x 2 include/asm/bitops
include/asm/bitops
 65:71 (7%)
85:91 (7%)
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6 x 2 kernel
kernel
 1579:1584 (<1%)
1648:1653 (<1%)
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6 x 2 kernel
kernel
 31:39 (13%)
57:65 (13%)
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6 x 2 include/asm/bitops
include/asm/bitops
 85:91 (7%)
105:111 (7%)
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6 x 2 include/asm/bitops
include/asm/bitops
 65:71 (7%)
105:111 (7%)
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6 x 2 kernel
kernel
 462:467 (<1%)
494:499 (<1%)
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6 x 2 kernel
kernel
 620:625 (<1%)
865:870 (<1%)
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6 x 2 kernel
kernel
 360:367 (2%)
407:414 (2%)
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6 x 2 kernel
kernel
 614:619 (<1%)
865:870 (<1%)
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6 x 2 kernel
kernel
 452:457 (<1%)
478:483 (<1%)
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6 x 2 kernel
kernel
 462:467 (<1%)
478:483 (<1%)
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6 x 2 include/asm/bitops
include/asm/bitops
 21:26 (7%)
55:60 (7%)
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6 x 2 lib
lib
 56:62 (6%)
93:99 (6%)
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6 x 2 kernel
kernel
 452:457 (<1%)
494:499 (<1%)
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Duplicated Units
The list of top 4 duplicated units.
See data for all 4 unit duplicates...
Size#FoldersFilesLinesCode
16 x 2 include/asm/bitops
include/asm/bitops
 63:81 
103:121 
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14 x 2 include/asm/bitops
include/asm/bitops
 12:27 
46:61 
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7 x 2 include/asm/bitops
include/asm/bitops
 14:23 
13:22 
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7 x 2 include/asm/bitops
include/asm/bitops
 14:23 
14:23 
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