Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* Helpers for initial module or kernel cmdline parsing |
| 2 | Copyright (C) 2001 Rusty Russell. |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or modify |
| 5 | it under the terms of the GNU General Public License as published by |
| 6 | the Free Software Foundation; either version 2 of the License, or |
| 7 | (at your option) any later version. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, write to the Free Software |
| 16 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 17 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/moduleparam.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/string.h> |
| 21 | #include <linux/errno.h> |
| 22 | #include <linux/module.h> |
| 23 | #include <linux/device.h> |
| 24 | #include <linux/err.h> |
Tim Schmielau | 4e57b68 | 2005-10-30 15:03:48 -0800 | [diff] [blame] | 25 | #include <linux/slab.h> |
Peter Oberparleiter | 26d052b | 2009-07-06 17:11:22 +0200 | [diff] [blame] | 26 | #include <linux/ctype.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | |
| 28 | #if 0 |
| 29 | #define DEBUGP printk |
| 30 | #else |
| 31 | #define DEBUGP(fmt, a...) |
| 32 | #endif |
| 33 | |
Eric Sesterhenn | b9e20a9 | 2006-03-28 01:56:24 -0800 | [diff] [blame] | 34 | static inline char dash2underscore(char c) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | { |
| 36 | if (c == '-') |
| 37 | return '_'; |
| 38 | return c; |
| 39 | } |
| 40 | |
| 41 | static inline int parameq(const char *input, const char *paramname) |
| 42 | { |
| 43 | unsigned int i; |
| 44 | for (i = 0; dash2underscore(input[i]) == paramname[i]; i++) |
| 45 | if (input[i] == '\0') |
| 46 | return 1; |
| 47 | return 0; |
| 48 | } |
| 49 | |
| 50 | static int parse_one(char *param, |
| 51 | char *val, |
| 52 | struct kernel_param *params, |
| 53 | unsigned num_params, |
| 54 | int (*handle_unknown)(char *param, char *val)) |
| 55 | { |
| 56 | unsigned int i; |
| 57 | |
| 58 | /* Find parameter */ |
| 59 | for (i = 0; i < num_params; i++) { |
| 60 | if (parameq(param, params[i].name)) { |
| 61 | DEBUGP("They are equal! Calling %p\n", |
| 62 | params[i].set); |
| 63 | return params[i].set(val, ¶ms[i]); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | if (handle_unknown) { |
| 68 | DEBUGP("Unknown argument: calling %p\n", handle_unknown); |
| 69 | return handle_unknown(param, val); |
| 70 | } |
| 71 | |
| 72 | DEBUGP("Unknown argument `%s'\n", param); |
| 73 | return -ENOENT; |
| 74 | } |
| 75 | |
| 76 | /* You can use " around spaces, but can't escape ". */ |
| 77 | /* Hyphens and underscores equivalent in parameter names. */ |
| 78 | static char *next_arg(char *args, char **param, char **val) |
| 79 | { |
| 80 | unsigned int i, equals = 0; |
| 81 | int in_quote = 0, quoted = 0; |
| 82 | char *next; |
| 83 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | if (*args == '"') { |
| 85 | args++; |
| 86 | in_quote = 1; |
| 87 | quoted = 1; |
| 88 | } |
| 89 | |
| 90 | for (i = 0; args[i]; i++) { |
Peter Oberparleiter | 26d052b | 2009-07-06 17:11:22 +0200 | [diff] [blame] | 91 | if (isspace(args[i]) && !in_quote) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | break; |
| 93 | if (equals == 0) { |
| 94 | if (args[i] == '=') |
| 95 | equals = i; |
| 96 | } |
| 97 | if (args[i] == '"') |
| 98 | in_quote = !in_quote; |
| 99 | } |
| 100 | |
| 101 | *param = args; |
| 102 | if (!equals) |
| 103 | *val = NULL; |
| 104 | else { |
| 105 | args[equals] = '\0'; |
| 106 | *val = args + equals + 1; |
| 107 | |
| 108 | /* Don't include quotes in value. */ |
| 109 | if (**val == '"') { |
| 110 | (*val)++; |
| 111 | if (args[i-1] == '"') |
| 112 | args[i-1] = '\0'; |
| 113 | } |
| 114 | if (quoted && args[i-1] == '"') |
| 115 | args[i-1] = '\0'; |
| 116 | } |
| 117 | |
| 118 | if (args[i]) { |
| 119 | args[i] = '\0'; |
| 120 | next = args + i + 1; |
| 121 | } else |
| 122 | next = args + i; |
Rusty Russell | f36462f | 2005-09-27 21:45:34 -0700 | [diff] [blame] | 123 | |
| 124 | /* Chew up trailing spaces. */ |
Peter Oberparleiter | 26d052b | 2009-07-06 17:11:22 +0200 | [diff] [blame] | 125 | while (isspace(*next)) |
Rusty Russell | f36462f | 2005-09-27 21:45:34 -0700 | [diff] [blame] | 126 | next++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | return next; |
| 128 | } |
| 129 | |
| 130 | /* Args looks like "foo=bar,bar2 baz=fuz wiz". */ |
| 131 | int parse_args(const char *name, |
| 132 | char *args, |
| 133 | struct kernel_param *params, |
| 134 | unsigned num, |
| 135 | int (*unknown)(char *param, char *val)) |
| 136 | { |
| 137 | char *param, *val; |
| 138 | |
| 139 | DEBUGP("Parsing ARGS: %s\n", args); |
| 140 | |
Rusty Russell | f36462f | 2005-09-27 21:45:34 -0700 | [diff] [blame] | 141 | /* Chew leading spaces */ |
Peter Oberparleiter | 26d052b | 2009-07-06 17:11:22 +0200 | [diff] [blame] | 142 | while (isspace(*args)) |
Rusty Russell | f36462f | 2005-09-27 21:45:34 -0700 | [diff] [blame] | 143 | args++; |
| 144 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | while (*args) { |
| 146 | int ret; |
Ard van Breemen | a416aba | 2007-01-05 16:36:20 -0800 | [diff] [blame] | 147 | int irq_was_disabled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | |
| 149 | args = next_arg(args, ¶m, &val); |
Ard van Breemen | a416aba | 2007-01-05 16:36:20 -0800 | [diff] [blame] | 150 | irq_was_disabled = irqs_disabled(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | ret = parse_one(param, val, params, num, unknown); |
Ard van Breemen | a416aba | 2007-01-05 16:36:20 -0800 | [diff] [blame] | 152 | if (irq_was_disabled && !irqs_disabled()) { |
| 153 | printk(KERN_WARNING "parse_args(): option '%s' enabled " |
| 154 | "irq's!\n", param); |
| 155 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | switch (ret) { |
| 157 | case -ENOENT: |
| 158 | printk(KERN_ERR "%s: Unknown parameter `%s'\n", |
| 159 | name, param); |
| 160 | return ret; |
| 161 | case -ENOSPC: |
| 162 | printk(KERN_ERR |
| 163 | "%s: `%s' too large for parameter `%s'\n", |
| 164 | name, val ?: "", param); |
| 165 | return ret; |
| 166 | case 0: |
| 167 | break; |
| 168 | default: |
| 169 | printk(KERN_ERR |
| 170 | "%s: `%s' invalid for parameter `%s'\n", |
| 171 | name, val ?: "", param); |
| 172 | return ret; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | /* All parsed OK. */ |
| 177 | return 0; |
| 178 | } |
| 179 | |
| 180 | /* Lazy bastard, eh? */ |
| 181 | #define STANDARD_PARAM_DEF(name, type, format, tmptype, strtolfn) \ |
| 182 | int param_set_##name(const char *val, struct kernel_param *kp) \ |
| 183 | { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | tmptype l; \ |
Yi Yang | 06b2a76 | 2008-02-08 04:21:57 -0800 | [diff] [blame] | 185 | int ret; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | \ |
| 187 | if (!val) return -EINVAL; \ |
Yi Yang | 06b2a76 | 2008-02-08 04:21:57 -0800 | [diff] [blame] | 188 | ret = strtolfn(val, 0, &l); \ |
| 189 | if (ret == -EINVAL || ((type)l != l)) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | return -EINVAL; \ |
| 191 | *((type *)kp->arg) = l; \ |
| 192 | return 0; \ |
| 193 | } \ |
| 194 | int param_get_##name(char *buffer, struct kernel_param *kp) \ |
| 195 | { \ |
| 196 | return sprintf(buffer, format, *((type *)kp->arg)); \ |
| 197 | } |
| 198 | |
Yi Yang | 06b2a76 | 2008-02-08 04:21:57 -0800 | [diff] [blame] | 199 | STANDARD_PARAM_DEF(byte, unsigned char, "%c", unsigned long, strict_strtoul); |
| 200 | STANDARD_PARAM_DEF(short, short, "%hi", long, strict_strtol); |
| 201 | STANDARD_PARAM_DEF(ushort, unsigned short, "%hu", unsigned long, strict_strtoul); |
| 202 | STANDARD_PARAM_DEF(int, int, "%i", long, strict_strtol); |
| 203 | STANDARD_PARAM_DEF(uint, unsigned int, "%u", unsigned long, strict_strtoul); |
| 204 | STANDARD_PARAM_DEF(long, long, "%li", long, strict_strtol); |
| 205 | STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", unsigned long, strict_strtoul); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | |
| 207 | int param_set_charp(const char *val, struct kernel_param *kp) |
| 208 | { |
| 209 | if (!val) { |
| 210 | printk(KERN_ERR "%s: string parameter expected\n", |
| 211 | kp->name); |
| 212 | return -EINVAL; |
| 213 | } |
| 214 | |
| 215 | if (strlen(val) > 1024) { |
| 216 | printk(KERN_ERR "%s: string parameter too long\n", |
| 217 | kp->name); |
| 218 | return -ENOSPC; |
| 219 | } |
| 220 | |
Rusty Russell | e180a6b | 2009-03-31 13:05:29 -0600 | [diff] [blame] | 221 | /* This is a hack. We can't need to strdup in early boot, and we |
| 222 | * don't need to; this mangled commandline is preserved. */ |
| 223 | if (slab_is_available()) { |
Rusty Russell | e180a6b | 2009-03-31 13:05:29 -0600 | [diff] [blame] | 224 | *(char **)kp->arg = kstrdup(val, GFP_KERNEL); |
Rusty Russell | d553ad8 | 2009-10-29 08:56:17 -0600 | [diff] [blame] | 225 | if (!*(char **)kp->arg) |
Rusty Russell | e180a6b | 2009-03-31 13:05:29 -0600 | [diff] [blame] | 226 | return -ENOMEM; |
| 227 | } else |
| 228 | *(const char **)kp->arg = val; |
| 229 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | return 0; |
| 231 | } |
| 232 | |
| 233 | int param_get_charp(char *buffer, struct kernel_param *kp) |
| 234 | { |
| 235 | return sprintf(buffer, "%s", *((char **)kp->arg)); |
| 236 | } |
| 237 | |
Rusty Russell | fddd520 | 2009-06-12 21:46:57 -0600 | [diff] [blame] | 238 | /* Actually could be a bool or an int, for historical reasons. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | int param_set_bool(const char *val, struct kernel_param *kp) |
| 240 | { |
Rusty Russell | fddd520 | 2009-06-12 21:46:57 -0600 | [diff] [blame] | 241 | bool v; |
| 242 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | /* No equals means "set"... */ |
| 244 | if (!val) val = "1"; |
| 245 | |
| 246 | /* One of =[yYnN01] */ |
| 247 | switch (val[0]) { |
| 248 | case 'y': case 'Y': case '1': |
Rusty Russell | fddd520 | 2009-06-12 21:46:57 -0600 | [diff] [blame] | 249 | v = true; |
| 250 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | case 'n': case 'N': case '0': |
Rusty Russell | fddd520 | 2009-06-12 21:46:57 -0600 | [diff] [blame] | 252 | v = false; |
| 253 | break; |
| 254 | default: |
| 255 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | } |
Rusty Russell | fddd520 | 2009-06-12 21:46:57 -0600 | [diff] [blame] | 257 | |
| 258 | if (kp->flags & KPARAM_ISBOOL) |
| 259 | *(bool *)kp->arg = v; |
| 260 | else |
| 261 | *(int *)kp->arg = v; |
| 262 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | int param_get_bool(char *buffer, struct kernel_param *kp) |
| 266 | { |
Rusty Russell | fddd520 | 2009-06-12 21:46:57 -0600 | [diff] [blame] | 267 | bool val; |
| 268 | if (kp->flags & KPARAM_ISBOOL) |
| 269 | val = *(bool *)kp->arg; |
| 270 | else |
| 271 | val = *(int *)kp->arg; |
| 272 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | /* Y and N chosen as being relatively non-coder friendly */ |
Rusty Russell | fddd520 | 2009-06-12 21:46:57 -0600 | [diff] [blame] | 274 | return sprintf(buffer, "%c", val ? 'Y' : 'N'); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | } |
| 276 | |
Rusty Russell | fddd520 | 2009-06-12 21:46:57 -0600 | [diff] [blame] | 277 | /* This one must be bool. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | int param_set_invbool(const char *val, struct kernel_param *kp) |
| 279 | { |
Rusty Russell | fddd520 | 2009-06-12 21:46:57 -0600 | [diff] [blame] | 280 | int ret; |
| 281 | bool boolval; |
Jan Beulich | 22e48ea | 2007-10-16 23:29:34 -0700 | [diff] [blame] | 282 | struct kernel_param dummy; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | |
Jan Beulich | 22e48ea | 2007-10-16 23:29:34 -0700 | [diff] [blame] | 284 | dummy.arg = &boolval; |
Rusty Russell | fddd520 | 2009-06-12 21:46:57 -0600 | [diff] [blame] | 285 | dummy.flags = KPARAM_ISBOOL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | ret = param_set_bool(val, &dummy); |
| 287 | if (ret == 0) |
Rusty Russell | 9a71af2 | 2009-06-12 21:46:53 -0600 | [diff] [blame] | 288 | *(bool *)kp->arg = !boolval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | return ret; |
| 290 | } |
| 291 | |
| 292 | int param_get_invbool(char *buffer, struct kernel_param *kp) |
| 293 | { |
Rusty Russell | 9a71af2 | 2009-06-12 21:46:53 -0600 | [diff] [blame] | 294 | return sprintf(buffer, "%c", (*(bool *)kp->arg) ? 'N' : 'Y'); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | } |
| 296 | |
Bert Wesarg | 9730b5b | 2007-05-08 00:28:50 -0700 | [diff] [blame] | 297 | /* We break the rule and mangle the string. */ |
Adrian Bunk | 9871728 | 2006-03-25 03:07:06 -0800 | [diff] [blame] | 298 | static int param_array(const char *name, |
| 299 | const char *val, |
| 300 | unsigned int min, unsigned int max, |
| 301 | void *elem, int elemsize, |
| 302 | int (*set)(const char *, struct kernel_param *kp), |
Rusty Russell | 3c7d76e | 2009-10-29 08:56:19 -0600 | [diff] [blame] | 303 | u16 flags, |
Richard Knutsson | eb38a99 | 2008-02-06 01:37:50 -0800 | [diff] [blame] | 304 | unsigned int *num) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | { |
| 306 | int ret; |
| 307 | struct kernel_param kp; |
| 308 | char save; |
| 309 | |
| 310 | /* Get the name right for errors. */ |
| 311 | kp.name = name; |
| 312 | kp.arg = elem; |
Rusty Russell | 3c7d76e | 2009-10-29 08:56:19 -0600 | [diff] [blame] | 313 | kp.flags = flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | |
| 315 | /* No equals sign? */ |
| 316 | if (!val) { |
| 317 | printk(KERN_ERR "%s: expects arguments\n", name); |
| 318 | return -EINVAL; |
| 319 | } |
| 320 | |
| 321 | *num = 0; |
| 322 | /* We expect a comma-separated list of values. */ |
| 323 | do { |
| 324 | int len; |
| 325 | |
| 326 | if (*num == max) { |
| 327 | printk(KERN_ERR "%s: can only take %i arguments\n", |
| 328 | name, max); |
| 329 | return -EINVAL; |
| 330 | } |
| 331 | len = strcspn(val, ","); |
| 332 | |
| 333 | /* nul-terminate and parse */ |
| 334 | save = val[len]; |
| 335 | ((char *)val)[len] = '\0'; |
| 336 | ret = set(val, &kp); |
| 337 | |
| 338 | if (ret != 0) |
| 339 | return ret; |
| 340 | kp.arg += elemsize; |
| 341 | val += len+1; |
| 342 | (*num)++; |
| 343 | } while (save == ','); |
| 344 | |
| 345 | if (*num < min) { |
| 346 | printk(KERN_ERR "%s: needs at least %i arguments\n", |
| 347 | name, min); |
| 348 | return -EINVAL; |
| 349 | } |
| 350 | return 0; |
| 351 | } |
| 352 | |
| 353 | int param_array_set(const char *val, struct kernel_param *kp) |
| 354 | { |
Jan Beulich | 22e48ea | 2007-10-16 23:29:34 -0700 | [diff] [blame] | 355 | const struct kparam_array *arr = kp->arr; |
Bert Wesarg | 31143a1 | 2005-04-16 15:25:42 -0700 | [diff] [blame] | 356 | unsigned int temp_num; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | |
| 358 | return param_array(kp->name, val, 1, arr->max, arr->elem, |
Rusty Russell | 3c7d76e | 2009-10-29 08:56:19 -0600 | [diff] [blame] | 359 | arr->elemsize, arr->set, kp->flags, |
| 360 | arr->num ?: &temp_num); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | } |
| 362 | |
| 363 | int param_array_get(char *buffer, struct kernel_param *kp) |
| 364 | { |
| 365 | int i, off, ret; |
Jan Beulich | 22e48ea | 2007-10-16 23:29:34 -0700 | [diff] [blame] | 366 | const struct kparam_array *arr = kp->arr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | struct kernel_param p; |
| 368 | |
| 369 | p = *kp; |
| 370 | for (i = off = 0; i < (arr->num ? *arr->num : arr->max); i++) { |
| 371 | if (i) |
| 372 | buffer[off++] = ','; |
| 373 | p.arg = arr->elem + arr->elemsize * i; |
| 374 | ret = arr->get(buffer + off, &p); |
| 375 | if (ret < 0) |
| 376 | return ret; |
| 377 | off += ret; |
| 378 | } |
| 379 | buffer[off] = '\0'; |
| 380 | return off; |
| 381 | } |
| 382 | |
| 383 | int param_set_copystring(const char *val, struct kernel_param *kp) |
| 384 | { |
Jan Beulich | 22e48ea | 2007-10-16 23:29:34 -0700 | [diff] [blame] | 385 | const struct kparam_string *kps = kp->str; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | |
Randy Dunlap | fe20e58 | 2007-04-11 23:28:41 -0700 | [diff] [blame] | 387 | if (!val) { |
| 388 | printk(KERN_ERR "%s: missing param set value\n", kp->name); |
| 389 | return -EINVAL; |
| 390 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | if (strlen(val)+1 > kps->maxlen) { |
| 392 | printk(KERN_ERR "%s: string doesn't fit in %u chars.\n", |
| 393 | kp->name, kps->maxlen-1); |
| 394 | return -ENOSPC; |
| 395 | } |
| 396 | strcpy(kps->string, val); |
| 397 | return 0; |
| 398 | } |
| 399 | |
| 400 | int param_get_string(char *buffer, struct kernel_param *kp) |
| 401 | { |
Jan Beulich | 22e48ea | 2007-10-16 23:29:34 -0700 | [diff] [blame] | 402 | const struct kparam_string *kps = kp->str; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | return strlcpy(buffer, kps->string, kps->maxlen); |
| 404 | } |
| 405 | |
| 406 | /* sysfs output in /sys/modules/XYZ/parameters/ */ |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 407 | #define to_module_attr(n) container_of(n, struct module_attribute, attr); |
| 408 | #define to_module_kobject(n) container_of(n, struct module_kobject, kobj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | |
| 410 | extern struct kernel_param __start___param[], __stop___param[]; |
| 411 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | struct param_attribute |
| 413 | { |
| 414 | struct module_attribute mattr; |
| 415 | struct kernel_param *param; |
| 416 | }; |
| 417 | |
| 418 | struct module_param_attrs |
| 419 | { |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 420 | unsigned int num; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | struct attribute_group grp; |
| 422 | struct param_attribute attrs[0]; |
| 423 | }; |
| 424 | |
Randy Dunlap | ef665c1 | 2007-02-13 15:19:06 -0800 | [diff] [blame] | 425 | #ifdef CONFIG_SYSFS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | #define to_param_attr(n) container_of(n, struct param_attribute, mattr); |
| 427 | |
| 428 | static ssize_t param_attr_show(struct module_attribute *mattr, |
| 429 | struct module *mod, char *buf) |
| 430 | { |
| 431 | int count; |
| 432 | struct param_attribute *attribute = to_param_attr(mattr); |
| 433 | |
| 434 | if (!attribute->param->get) |
| 435 | return -EPERM; |
| 436 | |
| 437 | count = attribute->param->get(buf, attribute->param); |
| 438 | if (count > 0) { |
| 439 | strcat(buf, "\n"); |
| 440 | ++count; |
| 441 | } |
| 442 | return count; |
| 443 | } |
| 444 | |
| 445 | /* sysfs always hands a nul-terminated string in buf. We rely on that. */ |
| 446 | static ssize_t param_attr_store(struct module_attribute *mattr, |
| 447 | struct module *owner, |
| 448 | const char *buf, size_t len) |
| 449 | { |
| 450 | int err; |
| 451 | struct param_attribute *attribute = to_param_attr(mattr); |
| 452 | |
| 453 | if (!attribute->param->set) |
| 454 | return -EPERM; |
| 455 | |
| 456 | err = attribute->param->set(buf, attribute->param); |
| 457 | if (!err) |
| 458 | return len; |
| 459 | return err; |
| 460 | } |
Randy Dunlap | ef665c1 | 2007-02-13 15:19:06 -0800 | [diff] [blame] | 461 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | |
| 463 | #ifdef CONFIG_MODULES |
| 464 | #define __modinit |
| 465 | #else |
| 466 | #define __modinit __init |
| 467 | #endif |
| 468 | |
Randy Dunlap | ef665c1 | 2007-02-13 15:19:06 -0800 | [diff] [blame] | 469 | #ifdef CONFIG_SYSFS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | /* |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 471 | * add_sysfs_param - add a parameter to sysfs |
| 472 | * @mk: struct module_kobject |
| 473 | * @kparam: the actual parameter definition to add to sysfs |
| 474 | * @name: name of parameter |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | * |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 476 | * Create a kobject if for a (per-module) parameter if mp NULL, and |
| 477 | * create file in sysfs. Returns an error on out of memory. Always cleans up |
| 478 | * if there's an error. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | */ |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 480 | static __modinit int add_sysfs_param(struct module_kobject *mk, |
| 481 | struct kernel_param *kp, |
| 482 | const char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | { |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 484 | struct module_param_attrs *new; |
| 485 | struct attribute **attrs; |
| 486 | int err, num; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 488 | /* We don't bother calling this with invisible parameters. */ |
| 489 | BUG_ON(!kp->perm); |
| 490 | |
| 491 | if (!mk->mp) { |
| 492 | num = 0; |
| 493 | attrs = NULL; |
| 494 | } else { |
| 495 | num = mk->mp->num; |
| 496 | attrs = mk->mp->grp.attrs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | } |
| 498 | |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 499 | /* Enlarge. */ |
| 500 | new = krealloc(mk->mp, |
| 501 | sizeof(*mk->mp) + sizeof(mk->mp->attrs[0]) * (num+1), |
| 502 | GFP_KERNEL); |
| 503 | if (!new) { |
| 504 | kfree(mk->mp); |
| 505 | err = -ENOMEM; |
| 506 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | } |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 508 | attrs = krealloc(attrs, sizeof(new->grp.attrs[0])*(num+2), GFP_KERNEL); |
| 509 | if (!attrs) { |
| 510 | err = -ENOMEM; |
| 511 | goto fail_free_new; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | } |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 513 | |
| 514 | /* Sysfs wants everything zeroed. */ |
| 515 | memset(new, 0, sizeof(*new)); |
| 516 | memset(&new->attrs[num], 0, sizeof(new->attrs[num])); |
| 517 | memset(&attrs[num], 0, sizeof(attrs[num])); |
| 518 | new->grp.name = "parameters"; |
| 519 | new->grp.attrs = attrs; |
| 520 | |
| 521 | /* Tack new one on the end. */ |
| 522 | new->attrs[num].param = kp; |
| 523 | new->attrs[num].mattr.show = param_attr_show; |
| 524 | new->attrs[num].mattr.store = param_attr_store; |
| 525 | new->attrs[num].mattr.attr.name = (char *)name; |
| 526 | new->attrs[num].mattr.attr.mode = kp->perm; |
| 527 | new->num = num+1; |
| 528 | |
| 529 | /* Fix up all the pointers, since krealloc can move us */ |
| 530 | for (num = 0; num < new->num; num++) |
| 531 | new->grp.attrs[num] = &new->attrs[num].mattr.attr; |
| 532 | new->grp.attrs[num] = NULL; |
| 533 | |
| 534 | mk->mp = new; |
| 535 | return 0; |
| 536 | |
| 537 | fail_free_new: |
| 538 | kfree(new); |
| 539 | fail: |
| 540 | mk->mp = NULL; |
| 541 | return err; |
| 542 | } |
| 543 | |
Linus Torvalds | d244118 | 2008-10-23 12:07:17 -0700 | [diff] [blame] | 544 | #ifdef CONFIG_MODULES |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 545 | static void free_module_param_attrs(struct module_kobject *mk) |
| 546 | { |
| 547 | kfree(mk->mp->grp.attrs); |
| 548 | kfree(mk->mp); |
| 549 | mk->mp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | } |
| 551 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | /* |
| 553 | * module_param_sysfs_setup - setup sysfs support for one module |
| 554 | * @mod: module |
| 555 | * @kparam: module parameters (array) |
| 556 | * @num_params: number of module parameters |
| 557 | * |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 558 | * Adds sysfs entries for module parameters under |
| 559 | * /sys/module/[mod->name]/parameters/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | */ |
| 561 | int module_param_sysfs_setup(struct module *mod, |
| 562 | struct kernel_param *kparam, |
| 563 | unsigned int num_params) |
| 564 | { |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 565 | int i, err; |
| 566 | bool params = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 568 | for (i = 0; i < num_params; i++) { |
| 569 | if (kparam[i].perm == 0) |
| 570 | continue; |
| 571 | err = add_sysfs_param(&mod->mkobj, &kparam[i], kparam[i].name); |
| 572 | if (err) |
| 573 | return err; |
| 574 | params = true; |
| 575 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 577 | if (!params) |
| 578 | return 0; |
| 579 | |
| 580 | /* Create the param group. */ |
| 581 | err = sysfs_create_group(&mod->mkobj.kobj, &mod->mkobj.mp->grp); |
| 582 | if (err) |
| 583 | free_module_param_attrs(&mod->mkobj); |
| 584 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | } |
| 586 | |
| 587 | /* |
| 588 | * module_param_sysfs_remove - remove sysfs support for one module |
| 589 | * @mod: module |
| 590 | * |
| 591 | * Remove sysfs entries for module parameters and the corresponding |
| 592 | * kobject. |
| 593 | */ |
| 594 | void module_param_sysfs_remove(struct module *mod) |
| 595 | { |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 596 | if (mod->mkobj.mp) { |
| 597 | sysfs_remove_group(&mod->mkobj.kobj, &mod->mkobj.mp->grp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | /* We are positive that no one is using any param |
| 599 | * attrs at this point. Deallocate immediately. */ |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 600 | free_module_param_attrs(&mod->mkobj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | } |
| 602 | } |
| 603 | #endif |
| 604 | |
Rusty Russell | e180a6b | 2009-03-31 13:05:29 -0600 | [diff] [blame] | 605 | void destroy_params(const struct kernel_param *params, unsigned num) |
| 606 | { |
Rusty Russell | 65afac7 | 2009-10-29 08:56:16 -0600 | [diff] [blame] | 607 | /* FIXME: This should free kmalloced charp parameters. It doesn't. */ |
Rusty Russell | e180a6b | 2009-03-31 13:05:29 -0600 | [diff] [blame] | 608 | } |
| 609 | |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 610 | static void __init kernel_add_sysfs_param(const char *name, |
| 611 | struct kernel_param *kparam, |
| 612 | unsigned int name_skip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | { |
| 614 | struct module_kobject *mk; |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 615 | struct kobject *kobj; |
| 616 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 618 | kobj = kset_find_obj(module_kset, name); |
| 619 | if (kobj) { |
| 620 | /* We already have one. Remove params so we can add more. */ |
| 621 | mk = to_module_kobject(kobj); |
| 622 | /* We need to remove it before adding parameters. */ |
| 623 | sysfs_remove_group(&mk->kobj, &mk->mp->grp); |
| 624 | } else { |
| 625 | mk = kzalloc(sizeof(struct module_kobject), GFP_KERNEL); |
| 626 | BUG_ON(!mk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 628 | mk->mod = THIS_MODULE; |
| 629 | mk->kobj.kset = module_kset; |
| 630 | err = kobject_init_and_add(&mk->kobj, &module_ktype, NULL, |
| 631 | "%s", name); |
| 632 | if (err) { |
| 633 | kobject_put(&mk->kobj); |
| 634 | printk(KERN_ERR "Module '%s' failed add to sysfs, " |
| 635 | "error number %d\n", name, err); |
| 636 | printk(KERN_ERR "The system will be unstable now.\n"); |
| 637 | return; |
| 638 | } |
| 639 | /* So that exit path is even. */ |
| 640 | kobject_get(&mk->kobj); |
Greg Kroah-Hartman | 74c5b59 | 2007-07-30 11:26:38 -0700 | [diff] [blame] | 641 | } |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 642 | |
| 643 | /* These should not fail at boot. */ |
| 644 | err = add_sysfs_param(mk, kparam, kparam->name + name_skip); |
| 645 | BUG_ON(err); |
| 646 | err = sysfs_create_group(&mk->kobj, &mk->mp->grp); |
| 647 | BUG_ON(err); |
Kay Sievers | f30c53a | 2007-01-15 20:22:02 +0100 | [diff] [blame] | 648 | kobject_uevent(&mk->kobj, KOBJ_ADD); |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 649 | kobject_put(&mk->kobj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | } |
| 651 | |
| 652 | /* |
| 653 | * param_sysfs_builtin - add contents in /sys/parameters for built-in modules |
| 654 | * |
| 655 | * Add module_parameters to sysfs for "modules" built into the kernel. |
| 656 | * |
| 657 | * The "module" name (KBUILD_MODNAME) is stored before a dot, the |
| 658 | * "parameter" name is stored behind a dot in kernel_param->name. So, |
| 659 | * extract the "module" name for all built-in kernel_param-eters, |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 660 | * and for all who have the same, call kernel_add_sysfs_param. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | */ |
| 662 | static void __init param_sysfs_builtin(void) |
| 663 | { |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 664 | struct kernel_param *kp; |
| 665 | unsigned int name_len; |
| 666 | char modname[MODULE_NAME_LEN]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 668 | for (kp = __start___param; kp < __stop___param; kp++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | char *dot; |
| 670 | |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 671 | if (kp->perm == 0) |
| 672 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | |
Rusty Russell | 730b69d | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 674 | dot = strchr(kp->name, '.'); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | if (!dot) { |
Rusty Russell | 67e67ce | 2008-10-22 10:00:23 -0500 | [diff] [blame] | 676 | /* This happens for core_param() */ |
| 677 | strcpy(modname, "kernel"); |
| 678 | name_len = 0; |
| 679 | } else { |
| 680 | name_len = dot - kp->name + 1; |
| 681 | strlcpy(modname, kp->name, name_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | } |
Rusty Russell | 67e67ce | 2008-10-22 10:00:23 -0500 | [diff] [blame] | 683 | kernel_add_sysfs_param(modname, kp, name_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | } |
| 686 | |
| 687 | |
| 688 | /* module-related sysfs stuff */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | static ssize_t module_attr_show(struct kobject *kobj, |
| 691 | struct attribute *attr, |
| 692 | char *buf) |
| 693 | { |
| 694 | struct module_attribute *attribute; |
| 695 | struct module_kobject *mk; |
| 696 | int ret; |
| 697 | |
| 698 | attribute = to_module_attr(attr); |
| 699 | mk = to_module_kobject(kobj); |
| 700 | |
| 701 | if (!attribute->show) |
Dmitry Torokhov | 70f2817 | 2005-04-29 01:27:34 -0500 | [diff] [blame] | 702 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | ret = attribute->show(attribute, mk->mod, buf); |
| 705 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | return ret; |
| 707 | } |
| 708 | |
| 709 | static ssize_t module_attr_store(struct kobject *kobj, |
| 710 | struct attribute *attr, |
| 711 | const char *buf, size_t len) |
| 712 | { |
| 713 | struct module_attribute *attribute; |
| 714 | struct module_kobject *mk; |
| 715 | int ret; |
| 716 | |
| 717 | attribute = to_module_attr(attr); |
| 718 | mk = to_module_kobject(kobj); |
| 719 | |
| 720 | if (!attribute->store) |
Dmitry Torokhov | 70f2817 | 2005-04-29 01:27:34 -0500 | [diff] [blame] | 721 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | ret = attribute->store(attribute, mk->mod, buf, len); |
| 724 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | return ret; |
| 726 | } |
| 727 | |
| 728 | static struct sysfs_ops module_sysfs_ops = { |
| 729 | .show = module_attr_show, |
| 730 | .store = module_attr_store, |
| 731 | }; |
| 732 | |
Kay Sievers | 270a6c4 | 2007-01-18 13:26:15 +0100 | [diff] [blame] | 733 | static int uevent_filter(struct kset *kset, struct kobject *kobj) |
| 734 | { |
| 735 | struct kobj_type *ktype = get_ktype(kobj); |
| 736 | |
| 737 | if (ktype == &module_ktype) |
| 738 | return 1; |
| 739 | return 0; |
| 740 | } |
| 741 | |
| 742 | static struct kset_uevent_ops module_uevent_ops = { |
| 743 | .filter = uevent_filter, |
| 744 | }; |
| 745 | |
Greg Kroah-Hartman | 7405c1e | 2007-11-01 10:39:50 -0700 | [diff] [blame] | 746 | struct kset *module_kset; |
Greg Kroah-Hartman | 823bccf | 2007-04-13 13:15:19 -0700 | [diff] [blame] | 747 | int module_sysfs_initialized; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | |
Greg Kroah-Hartman | 7405c1e | 2007-11-01 10:39:50 -0700 | [diff] [blame] | 749 | struct kobj_type module_ktype = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | .sysfs_ops = &module_sysfs_ops, |
| 751 | }; |
| 752 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | /* |
| 754 | * param_sysfs_init - wrapper for built-in params support |
| 755 | */ |
| 756 | static int __init param_sysfs_init(void) |
| 757 | { |
Greg Kroah-Hartman | 7405c1e | 2007-11-01 10:39:50 -0700 | [diff] [blame] | 758 | module_kset = kset_create_and_add("module", &module_uevent_ops, NULL); |
| 759 | if (!module_kset) { |
| 760 | printk(KERN_WARNING "%s (%d): error creating kset\n", |
| 761 | __FILE__, __LINE__); |
| 762 | return -ENOMEM; |
Randy Dunlap | d8c7649 | 2006-09-29 01:58:55 -0700 | [diff] [blame] | 763 | } |
Greg Kroah-Hartman | 823bccf | 2007-04-13 13:15:19 -0700 | [diff] [blame] | 764 | module_sysfs_initialized = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | |
| 766 | param_sysfs_builtin(); |
| 767 | |
| 768 | return 0; |
| 769 | } |
Mark Huang | d10be6d | 2006-09-29 01:59:34 -0700 | [diff] [blame] | 770 | subsys_initcall(param_sysfs_init); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | |
Greg Kroah-Hartman | 7405c1e | 2007-11-01 10:39:50 -0700 | [diff] [blame] | 772 | #endif /* CONFIG_SYSFS */ |
Randy Dunlap | ef665c1 | 2007-02-13 15:19:06 -0800 | [diff] [blame] | 773 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | EXPORT_SYMBOL(param_set_byte); |
| 775 | EXPORT_SYMBOL(param_get_byte); |
| 776 | EXPORT_SYMBOL(param_set_short); |
| 777 | EXPORT_SYMBOL(param_get_short); |
| 778 | EXPORT_SYMBOL(param_set_ushort); |
| 779 | EXPORT_SYMBOL(param_get_ushort); |
| 780 | EXPORT_SYMBOL(param_set_int); |
| 781 | EXPORT_SYMBOL(param_get_int); |
| 782 | EXPORT_SYMBOL(param_set_uint); |
| 783 | EXPORT_SYMBOL(param_get_uint); |
| 784 | EXPORT_SYMBOL(param_set_long); |
| 785 | EXPORT_SYMBOL(param_get_long); |
| 786 | EXPORT_SYMBOL(param_set_ulong); |
| 787 | EXPORT_SYMBOL(param_get_ulong); |
| 788 | EXPORT_SYMBOL(param_set_charp); |
| 789 | EXPORT_SYMBOL(param_get_charp); |
| 790 | EXPORT_SYMBOL(param_set_bool); |
| 791 | EXPORT_SYMBOL(param_get_bool); |
| 792 | EXPORT_SYMBOL(param_set_invbool); |
| 793 | EXPORT_SYMBOL(param_get_invbool); |
| 794 | EXPORT_SYMBOL(param_array_set); |
| 795 | EXPORT_SYMBOL(param_array_get); |
| 796 | EXPORT_SYMBOL(param_set_copystring); |
| 797 | EXPORT_SYMBOL(param_get_string); |