修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/x86/include/asm/div64.h
..
..
@@ -73,6 +73,29 @@
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 #else
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 # include <asm-generic/div64.h>
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+
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+/*
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+ * Will generate an #DE when the result doesn't fit u64, could fix with an
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+ * __ex_table[] entry when it becomes an issue.
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+ */
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+static inline u64 mul_u64_u64_div_u64(u64 a, u64 mul, u64 div)
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+{
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+	u64 q;
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+
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+	asm ("mulq %2; divq %3" : "=a" (q)
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+				: "a" (a), "rm" (mul), "rm" (div)
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+				: "rdx");
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+
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+	return q;
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+}
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+#define mul_u64_u64_div_u64 mul_u64_u64_div_u64
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+
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+static inline u64 mul_u64_u32_div(u64 a, u32 mul, u32 div)
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+{
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+	return mul_u64_u64_div_u64(a, mul, div);
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+}
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+#define mul_u64_u32_div	mul_u64_u32_div
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+
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 #endif /* CONFIG_X86_32 */
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 #endif /* _ASM_X86_DIV64_H */