1/*
2 * livepatch.h - s390-specific Kernel Live Patching Core
3 *
4 *  Copyright (c) 2013-2015 SUSE
5 *   Authors: Jiri Kosina
6 *	      Vojtech Pavlik
7 *	      Jiri Slaby
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
14 * any later version.
15 */
16
17#ifndef ASM_LIVEPATCH_H
18#define ASM_LIVEPATCH_H
19
20#include <linux/module.h>
21
22#ifdef CONFIG_LIVEPATCH
23static inline int klp_check_compiler_support(void)
24{
25	return 0;
26}
27
28static inline int klp_write_module_reloc(struct module *mod, unsigned long
29		type, unsigned long loc, unsigned long value)
30{
31	/* not supported yet */
32	return -ENOSYS;
33}
34
35static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip)
36{
37	regs->psw.addr = ip;
38}
39#else
40#error Live patching support is disabled; check CONFIG_LIVEPATCH
41#endif
42
43#endif
44