#include <linux/uaccess.h>
#ifndef INLINE_COPY_FROM_USER
unsigned long _copy_from_user(void *to, const void __user *from, unsigned long n)
if (likely(access_ok(from, n))) {
kasan_check_write(to, n);
res = raw_copy_from_user(to, from, n);
memset(to + (n - res), 0, res);
EXPORT_SYMBOL(_copy_from_user);
#ifndef INLINE_COPY_TO_USER
unsigned long _copy_to_user(void __user *to, const void *from, unsigned long n)
if (likely(access_ok(to, n))) {
kasan_check_read(from, n);
n = raw_copy_to_user(to, from, n);
EXPORT_SYMBOL(_copy_to_user);