diff options
-rw-r--r-- | include/linux/moduleparam.h | 19 | ||||
-rw-r--r-- | kernel/params.c | 23 |
2 files changed, 8 insertions, 34 deletions
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index c47f4d60db0b..4daa895648d9 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h | |||
@@ -47,9 +47,6 @@ struct kernel_param_ops { | |||
47 | void (*free)(void *arg); | 47 | void (*free)(void *arg); |
48 | }; | 48 | }; |
49 | 49 | ||
50 | /* Flag bits for kernel_param.flags */ | ||
51 | #define KPARAM_ISBOOL 2 | ||
52 | |||
53 | struct kernel_param { | 50 | struct kernel_param { |
54 | const char *name; | 51 | const char *name; |
55 | const struct kernel_param_ops *ops; | 52 | const struct kernel_param_ops *ops; |
@@ -131,8 +128,7 @@ struct kparam_array | |||
131 | * The ops can have NULL set or get functions. | 128 | * The ops can have NULL set or get functions. |
132 | */ | 129 | */ |
133 | #define module_param_cb(name, ops, arg, perm) \ | 130 | #define module_param_cb(name, ops, arg, perm) \ |
134 | __module_param_call(MODULE_PARAM_PREFIX, \ | 131 | __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm) |
135 | name, ops, arg, __same_type((arg), bool *), perm) | ||
136 | 132 | ||
137 | /* On alpha, ia64 and ppc64 relocations to global data cannot go into | 133 | /* On alpha, ia64 and ppc64 relocations to global data cannot go into |
138 | read-only sections (which is part of respective UNIX ABI on these | 134 | read-only sections (which is part of respective UNIX ABI on these |
@@ -146,7 +142,7 @@ struct kparam_array | |||
146 | 142 | ||
147 | /* This is the fundamental function for registering boot/module | 143 | /* This is the fundamental function for registering boot/module |
148 | parameters. */ | 144 | parameters. */ |
149 | #define __module_param_call(prefix, name, ops, arg, isbool, perm) \ | 145 | #define __module_param_call(prefix, name, ops, arg, perm) \ |
150 | /* Default value instead of permissions? */ \ | 146 | /* Default value instead of permissions? */ \ |
151 | static int __param_perm_check_##name __attribute__((unused)) = \ | 147 | static int __param_perm_check_##name __attribute__((unused)) = \ |
152 | BUILD_BUG_ON_ZERO((perm) < 0 || (perm) > 0777 || ((perm) & 2)) \ | 148 | BUILD_BUG_ON_ZERO((perm) < 0 || (perm) > 0777 || ((perm) & 2)) \ |
@@ -155,8 +151,7 @@ struct kparam_array | |||
155 | static struct kernel_param __moduleparam_const __param_##name \ | 151 | static struct kernel_param __moduleparam_const __param_##name \ |
156 | __used \ | 152 | __used \ |
157 | __attribute__ ((unused,__section__ ("__param"),aligned(sizeof(void *)))) \ | 153 | __attribute__ ((unused,__section__ ("__param"),aligned(sizeof(void *)))) \ |
158 | = { __param_str_##name, ops, perm, isbool ? KPARAM_ISBOOL : 0, \ | 154 | = { __param_str_##name, ops, perm, 0, { arg } } |
159 | { arg } } | ||
160 | 155 | ||
161 | /* Obsolete - use module_param_cb() */ | 156 | /* Obsolete - use module_param_cb() */ |
162 | #define module_param_call(name, set, get, arg, perm) \ | 157 | #define module_param_call(name, set, get, arg, perm) \ |
@@ -164,7 +159,6 @@ struct kparam_array | |||
164 | { (void *)set, (void *)get }; \ | 159 | { (void *)set, (void *)get }; \ |
165 | __module_param_call(MODULE_PARAM_PREFIX, \ | 160 | __module_param_call(MODULE_PARAM_PREFIX, \ |
166 | name, &__param_ops_##name, arg, \ | 161 | name, &__param_ops_##name, arg, \ |
167 | __same_type(arg, bool *), \ | ||
168 | (perm) + sizeof(__check_old_set_param(set))*0) | 162 | (perm) + sizeof(__check_old_set_param(set))*0) |
169 | 163 | ||
170 | /* We don't get oldget: it's often a new-style param_get_uint, etc. */ | 164 | /* We don't get oldget: it's often a new-style param_get_uint, etc. */ |
@@ -245,8 +239,7 @@ static inline void __kernel_param_unlock(void) | |||
245 | */ | 239 | */ |
246 | #define core_param(name, var, type, perm) \ | 240 | #define core_param(name, var, type, perm) \ |
247 | param_check_##type(name, &(var)); \ | 241 | param_check_##type(name, &(var)); \ |
248 | __module_param_call("", name, ¶m_ops_##type, \ | 242 | __module_param_call("", name, ¶m_ops_##type, &var, perm) |
249 | &var, __same_type(var, bool), perm) | ||
250 | #endif /* !MODULE */ | 243 | #endif /* !MODULE */ |
251 | 244 | ||
252 | /** | 245 | /** |
@@ -264,7 +257,7 @@ static inline void __kernel_param_unlock(void) | |||
264 | = { len, string }; \ | 257 | = { len, string }; \ |
265 | __module_param_call(MODULE_PARAM_PREFIX, name, \ | 258 | __module_param_call(MODULE_PARAM_PREFIX, name, \ |
266 | ¶m_ops_string, \ | 259 | ¶m_ops_string, \ |
267 | .str = &__param_string_##name, 0, perm); \ | 260 | .str = &__param_string_##name, perm); \ |
268 | __MODULE_PARM_TYPE(name, "string") | 261 | __MODULE_PARM_TYPE(name, "string") |
269 | 262 | ||
270 | /** | 263 | /** |
@@ -403,7 +396,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp); | |||
403 | __module_param_call(MODULE_PARAM_PREFIX, name, \ | 396 | __module_param_call(MODULE_PARAM_PREFIX, name, \ |
404 | ¶m_array_ops, \ | 397 | ¶m_array_ops, \ |
405 | .arr = &__param_arr_##name, \ | 398 | .arr = &__param_arr_##name, \ |
406 | __same_type(array[0], bool), perm); \ | 399 | perm); \ |
407 | __MODULE_PARM_TYPE(name, "array of " #type) | 400 | __MODULE_PARM_TYPE(name, "array of " #type) |
408 | 401 | ||
409 | extern struct kernel_param_ops param_array_ops; | 402 | extern struct kernel_param_ops param_array_ops; |
diff --git a/kernel/params.c b/kernel/params.c index 47f5bf12434a..508828afb874 100644 --- a/kernel/params.c +++ b/kernel/params.c | |||
@@ -297,35 +297,18 @@ EXPORT_SYMBOL(param_ops_charp); | |||
297 | /* Actually could be a bool or an int, for historical reasons. */ | 297 | /* Actually could be a bool or an int, for historical reasons. */ |
298 | int param_set_bool(const char *val, const struct kernel_param *kp) | 298 | int param_set_bool(const char *val, const struct kernel_param *kp) |
299 | { | 299 | { |
300 | bool v; | ||
301 | int ret; | ||
302 | |||
303 | /* No equals means "set"... */ | 300 | /* No equals means "set"... */ |
304 | if (!val) val = "1"; | 301 | if (!val) val = "1"; |
305 | 302 | ||
306 | /* One of =[yYnN01] */ | 303 | /* One of =[yYnN01] */ |
307 | ret = strtobool(val, &v); | 304 | return strtobool(val, kp->arg); |
308 | if (ret) | ||
309 | return ret; | ||
310 | |||
311 | if (kp->flags & KPARAM_ISBOOL) | ||
312 | *(bool *)kp->arg = v; | ||
313 | else | ||
314 | *(int *)kp->arg = v; | ||
315 | return 0; | ||
316 | } | 305 | } |
317 | EXPORT_SYMBOL(param_set_bool); | 306 | EXPORT_SYMBOL(param_set_bool); |
318 | 307 | ||
319 | int param_get_bool(char *buffer, const struct kernel_param *kp) | 308 | int param_get_bool(char *buffer, const struct kernel_param *kp) |
320 | { | 309 | { |
321 | bool val; | ||
322 | if (kp->flags & KPARAM_ISBOOL) | ||
323 | val = *(bool *)kp->arg; | ||
324 | else | ||
325 | val = *(int *)kp->arg; | ||
326 | |||
327 | /* Y and N chosen as being relatively non-coder friendly */ | 310 | /* Y and N chosen as being relatively non-coder friendly */ |
328 | return sprintf(buffer, "%c", val ? 'Y' : 'N'); | 311 | return sprintf(buffer, "%c", *(bool *)kp->arg ? 'Y' : 'N'); |
329 | } | 312 | } |
330 | EXPORT_SYMBOL(param_get_bool); | 313 | EXPORT_SYMBOL(param_get_bool); |
331 | 314 | ||
@@ -343,7 +326,6 @@ int param_set_invbool(const char *val, const struct kernel_param *kp) | |||
343 | struct kernel_param dummy; | 326 | struct kernel_param dummy; |
344 | 327 | ||
345 | dummy.arg = &boolval; | 328 | dummy.arg = &boolval; |
346 | dummy.flags = KPARAM_ISBOOL; | ||
347 | ret = param_set_bool(val, &dummy); | 329 | ret = param_set_bool(val, &dummy); |
348 | if (ret == 0) | 330 | if (ret == 0) |
349 | *(bool *)kp->arg = !boolval; | 331 | *(bool *)kp->arg = !boolval; |
@@ -372,7 +354,6 @@ int param_set_bint(const char *val, const struct kernel_param *kp) | |||
372 | /* Match bool exactly, by re-using it. */ | 354 | /* Match bool exactly, by re-using it. */ |
373 | boolkp = *kp; | 355 | boolkp = *kp; |
374 | boolkp.arg = &v; | 356 | boolkp.arg = &v; |
375 | boolkp.flags |= KPARAM_ISBOOL; | ||
376 | 357 | ||
377 | ret = param_set_bool(val, &boolkp); | 358 | ret = param_set_bool(val, &boolkp); |
378 | if (ret == 0) | 359 | if (ret == 0) |