arch_unsafe_get_user
#define arch_unsafe_get_user(x, ptr, label) \
#define arch_unsafe_get_user(x, p, e) do { \
#define arch_unsafe_get_user(x, ptr, label) do { \
#define arch_unsafe_get_user(x, ptr, err_label) \
#define arch_unsafe_get_user(x, ptr, err_label) \