diff --git a/include/dd_compat.h b/include/dd_compat.h index b78c647..63449c7 100644 --- a/include/dd_compat.h +++ b/include/dd_compat.h @@ -29,3 +29,27 @@ #define APSK_256 22 #define APSK_256_L 23 #endif + +#if 0 +#if (KERNEL_VERSION(6, 6, 3) >= LINUX_VERSION_CODE) +#include +/** + * memdup_array_user - duplicate array from user space + * @src: source address in user space + * @n: number of array members to copy + * @size: size of one array member + * + * Return: an ERR_PTR() on failure. Result is physically + * contiguous, to be freed by kfree(). + */ +static inline void *memdup_array_user(const void __user *src, size_t n, size_t size) +{ + size_t nbytes; + + if (check_mul_overflow(n, size, &nbytes)) + return ERR_PTR(-EOVERFLOW); + + return memdup_user(src, nbytes); +} +#endif +#endif