| 1 | #include <linux/compiler.h>
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| 2 | #include <linux/gcd.h>
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| 3 | #include <linux/export.h>
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| 4 | #include <linux/lcm.h>
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| 5 |
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| 6 |
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| 7 | unsigned long lcm(unsigned long a, unsigned long b)
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| 8 | {
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| 9 | if (a && b)
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| 10 | return (a / gcd(a, b)) * b;
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| 11 | else
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| 12 | return 0;
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| 13 | }
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| 14 | EXPORT_SYMBOL_GPL(lcm);
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| 15 |
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| 16 | unsigned long lcm_not_zero(unsigned long a, unsigned long b)
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| 17 | {
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| 18 | unsigned long l = lcm(a, b);
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| 19 |
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| 20 | if (l)
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| 21 | return l;
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| 22 |
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| 23 | return (b ? : a);
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| 24 | }
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| 25 | EXPORT_SYMBOL_GPL(lcm_not_zero);
|