| Thomas Bogendoerfer | 08ee3a0 | 2021-04-01 14:56:35 +0200 | [diff] [blame] | 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 | } | ||||