Error:passing 'int *' to parameter of type ' int *' changes address space of pointer

when compiling the bellow device code. the following error showed up:

error: passing 'int *' to parameter of type ' int *' changes address space of pointer
            array_dist[i] = Euclidean_distance(X_train, mydatapoint);
note: passing argument to parameter 'array_point_B' here
 float Euclidean_distance(__global int* restrict array_point_A, __global int* restrict array_point_B) {

my code:

> 
inline float Euclidean_distance(__global int* restrict array_point_A, __global int* restrict array_point_B) {
>  // do something
> }
> _kernel void KNN_classifier(__global int* restrict X_train, __global int* restrict Y_train, __global int* restrict data_point, __global int* restrict array_X_set, __global int* restrict index_arr, __global float* restrict array_dist)
> {
>     int mydatapoint[20];
>     for (int l = 0; l + 8 < 4344; l += 8) {
>         for (int u = l; u < l + 8; ++u) {
>             for (int j = 0; j < 20; ++j) {
>                 mydatapoint[j] = array_X_set[u];
> 
>             }
> 
>             for (int i = 0; i < 4344; i++) {
>                 array_dist[i] = Euclidean_distance(X_train, mydatapoint);//ask
>                 index_arr[i] = i;
>             }