File: maccess.c

package info (click to toggle)
linux 6.1.139-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,495,880 kB
  • sloc: ansic: 23,469,452; asm: 266,614; sh: 110,522; makefile: 49,887; python: 36,990; perl: 36,834; cpp: 6,056; yacc: 4,908; lex: 2,725; awk: 1,440; ruby: 25; sed: 5
file content (10 lines) | stat: -rw-r--r-- 275 bytes parent folder | download | duplicates (26)
1
2
3
4
5
6
7
8
9
10
// 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);
}