AX88772C_eeprom and ax8872c build together

hc

2024-05-16 8d2a02b24d66aa359e83eebc1ed3c0f85367a1cb

 kernel/include/linux/util_macros.h
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..
@@ -38,4 +38,16 @@
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  */
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 #define find_closest_descending(x, a, as) __find_closest(x, a, as, >=)
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+/**
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+ * is_insidevar - check if the @ptr points inside the @var memory range.
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+ * @ptr:	the pointer to a memory address.
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+ * @var:	the variable which address and size identify the memory range.
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+ *
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+ * Evaluates to true if the address in @ptr lies within the memory
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+ * range allocated to @var.
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+ */
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+#define is_insidevar(ptr, var)						\
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+	((uintptr_t)(ptr) >= (uintptr_t)(var) &&			\
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+	 (uintptr_t)(ptr) <  (uintptr_t)(var) + sizeof(var))
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+
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 #endif