change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/arch/x86/include/asm/processor-cyrix.h
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@@ -3,19 +3,6 @@
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  * NSC/Cyrix CPU indexed register access. Must be inlined instead of
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  * macros to ensure correct access ordering
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  * Access order is always 0x22 (=offset), 0x23 (=value)
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- *
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- * When using the old macros a line like
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- *   setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88);
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- * gets expanded to:
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- *  do {
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- *    outb((CX86_CCR2), 0x22);
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- *    outb((({
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- *        outb((CX86_CCR2), 0x22);
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- *        inb(0x23);
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- *    }) | 0x88), 0x23);
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- *  } while (0);
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- *
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- * which in fact violates the access order (= 0x22, 0x22, 0x23, 0x23).
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  */
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 static inline u8 getCx86(u8 reg)
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@@ -29,11 +16,3 @@
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 	outb(reg, 0x22);
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 	outb(data, 0x23);
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 }
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-
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-#define getCx86_old(reg) ({ outb((reg), 0x22); inb(0x23); })
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-
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-#define setCx86_old(reg, data) do { \
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-	outb((reg), 0x22); \
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-	outb((data), 0x23); \
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-} while (0)
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-