ASoC: dapm: Fix handling of custom_stop_condition on DAPM graph walks
[sfrench/cifs-2.6.git] / crypto / fips.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * FIPS 200 support.
4  *
5  * Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com>
6  */
7
8 #include <linux/export.h>
9 #include <linux/fips.h>
10 #include <linux/init.h>
11 #include <linux/module.h>
12 #include <linux/kernel.h>
13 #include <linux/sysctl.h>
14
15 int fips_enabled;
16 EXPORT_SYMBOL_GPL(fips_enabled);
17
18 /* Process kernel command-line parameter at boot time. fips=0 or fips=1 */
19 static int fips_enable(char *str)
20 {
21         fips_enabled = !!simple_strtol(str, NULL, 0);
22         printk(KERN_INFO "fips mode: %s\n",
23                 fips_enabled ? "enabled" : "disabled");
24         return 1;
25 }
26
27 __setup("fips=", fips_enable);
28
29 static struct ctl_table crypto_sysctl_table[] = {
30         {
31                 .procname       = "fips_enabled",
32                 .data           = &fips_enabled,
33                 .maxlen         = sizeof(int),
34                 .mode           = 0444,
35                 .proc_handler   = proc_dointvec
36         },
37         {}
38 };
39
40 static struct ctl_table crypto_dir_table[] = {
41         {
42                 .procname       = "crypto",
43                 .mode           = 0555,
44                 .child          = crypto_sysctl_table
45         },
46         {}
47 };
48
49 static struct ctl_table_header *crypto_sysctls;
50
51 static void crypto_proc_fips_init(void)
52 {
53         crypto_sysctls = register_sysctl_table(crypto_dir_table);
54 }
55
56 static void crypto_proc_fips_exit(void)
57 {
58         unregister_sysctl_table(crypto_sysctls);
59 }
60
61 static int __init fips_init(void)
62 {
63         crypto_proc_fips_init();
64         return 0;
65 }
66
67 static void __exit fips_exit(void)
68 {
69         crypto_proc_fips_exit();
70 }
71
72 subsys_initcall(fips_init);
73 module_exit(fips_exit);