修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/arch/arm/include/asm/checksum.h
..
..
@@ -35,10 +35,21 @@
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  */
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 __wsum
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-csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum);
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+csum_partial_copy_nocheck(const void *src, void *dst, int len);
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 __wsum
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-csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
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+csum_partial_copy_from_user(const void __user *src, void *dst, int len);
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+
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+#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
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+#define _HAVE_ARCH_CSUM_AND_COPY
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+static inline
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+__wsum csum_and_copy_from_user(const void __user *src, void *dst, int len)
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+{
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+	if (!access_ok(src, len))
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+		return 0;
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+
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+	return csum_partial_copy_from_user(src, dst, len);
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+}
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 /*
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  * 	Fold a partial checksum without adding pseudo headers