| 1 | // SPDX-License-Identifier: GPL-2.0-only |
|---|---|
| 2 | |
| 3 | #include <linux/uaccess.h> |
| 4 | #include <linux/kernel.h> |
| 5 | |
| 6 | bool copy_from_kernel_nofault_allowed(const void *unsafe_src, size_t size) |
| 7 | { |
| 8 | /* highest bit set means kernel space */ |
| 9 | return (unsigned long)unsafe_src >> (BITS_PER_LONG - 1); |
| 10 | } |
| 11 |