disable cpu isolcpus

hc

2023-12-09 958e46acc8e900e8569dd467c1af9b8d2d019394

 kernel/arch/parisc/include/asm/cmpxchg.h
..
..
@@ -14,22 +14,22 @@
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 extern void __xchg_called_with_bad_pointer(void);
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 /* __xchg32/64 defined in arch/parisc/lib/bitops.c */
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-extern unsigned long __xchg8(char, char *);
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-extern unsigned long __xchg32(int, int *);
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+extern unsigned long __xchg8(char, volatile char *);
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+extern unsigned long __xchg32(int, volatile int *);
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 #ifdef CONFIG_64BIT
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-extern unsigned long __xchg64(unsigned long, unsigned long *);
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+extern unsigned long __xchg64(unsigned long, volatile unsigned long *);
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 #endif
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 /* optimizer better get rid of switch since size is a constant */
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 static inline unsigned long
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-__xchg(unsigned long x, __volatile__ void *ptr, int size)
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+__xchg(unsigned long x, volatile void *ptr, int size)
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 {
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 	switch (size) {
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 #ifdef CONFIG_64BIT
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-	case 8: return __xchg64(x, (unsigned long *) ptr);
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+	case 8: return __xchg64(x, (volatile unsigned long *) ptr);
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 #endif
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-	case 4: return __xchg32((int) x, (int *) ptr);
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-	case 1: return __xchg8((char) x, (char *) ptr);
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+	case 4: return __xchg32((int) x, (volatile int *) ptr);
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+	case 1: return __xchg8((char) x, (volatile char *) ptr);
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 	}
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 	__xchg_called_with_bad_pointer();
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 	return x;