add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/powerpc/kernel/time.c
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@@ -436,7 +436,7 @@
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 #define calc_cputime_factors()
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 #endif
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-void __delay(unsigned long loops)
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+void __no_kcsan __delay(unsigned long loops)
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 {
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 	unsigned long start;
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@@ -457,7 +457,7 @@
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 }
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 EXPORT_SYMBOL(__delay);
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-void udelay(unsigned long usecs)
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+void __no_kcsan udelay(unsigned long usecs)
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 {
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 	__delay(tb_ticks_per_usec * usecs);
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 }