| // SPDX-License-Identifier: GPL-2.0-only | |
| #include <linux/uaccess.h> | |
| #include <linux/kernel.h> | |
| bool copy_from_kernel_nofault_allowed(const void *unsafe_src, size_t size) | |
| { | |
| /* highest bit set means kernel space */ | |
| return (unsigned long)unsafe_src >> (BITS_PER_LONG - 1); | |
| } |