add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/include/asm-generic/bitops/builtin-fls.h
..
..
@@ -9,7 +9,7 @@
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  * This is defined the same way as ffs.
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  * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
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  */
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-static __always_inline int fls(int x)
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+static __always_inline int fls(unsigned int x)
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 {
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 	return x ? sizeof(x) * 8 - __builtin_clz(x) : 0;
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 }