#ifdef MODULE
#define MODULE_PARAM_PREFIX /* empty */
#else
-#define MODULE_PARAM_PREFIX __stringify(KBUILD_MODNAME) "."
+#define MODULE_PARAM_PREFIX KBUILD_MODNAME "."
#endif
+#ifdef MODULE
+#define ___module_cat(a,b) __mod_ ## a ## b
+#define __module_cat(a,b) ___module_cat(a,b)
+#define __MODULE_INFO(tag, name, info) \
+static const char __module_cat(name,__LINE__)[] \
+ __attribute_used__ \
+ __attribute__((section(".modinfo"),unused)) = __stringify(tag) "=" info
+#else /* !MODULE */
+#define __MODULE_INFO(tag, name, info)
+#endif
+#define __MODULE_PARM_TYPE(name, _type) \
+ __MODULE_INFO(parmtype, name##type, #name ":" _type)
+
struct kernel_param;
/* Returns 0, or -errno. arg is in kp->arg. */
not there, read bits mean it's readable, write bits mean it's
writable. */
#define __module_param_call(prefix, name, set, get, arg, perm) \
+ /* Default value instead of permissions? */ \
+ static int __param_perm_check_##name __attribute__((unused)) = \
+ BUILD_BUG_ON_ZERO((perm) < 0 || (perm) > 0777 || ((perm) & 2)); \
static char __param_str_##name[] = prefix #name; \
static struct kernel_param const __param_##name \
__attribute_used__ \
param_set_XXX and param_check_XXX. */
#define module_param_named(name, value, type, perm) \
param_check_##type(name, &(value)); \
- module_param_call(name, param_set_##type, param_get_##type, &value, perm)
+ module_param_call(name, param_set_##type, param_get_##type, &value, perm); \
+ __MODULE_PARM_TYPE(name, #type)
#define module_param(name, type, perm) \
module_param_named(name, name, type, perm)
#define module_param_string(name, string, len, perm) \
static struct kparam_string __param_string_##name \
= { len, string }; \
- module_param_call(name, param_set_copystring, param_get_charp, \
- &__param_string_##name, perm)
+ module_param_call(name, param_set_copystring, param_get_string, \
+ &__param_string_##name, perm); \
+ __MODULE_PARM_TYPE(name, "string")
/* Called on module insert or kernel boot */
extern int parse_args(const char *name,
#define __param_check(name, p, type) \
static inline type *__check_##name(void) { return(p); }
+extern int param_set_byte(const char *val, struct kernel_param *kp);
+extern int param_get_byte(char *buffer, struct kernel_param *kp);
+#define param_check_byte(name, p) __param_check(name, p, unsigned char)
+
extern int param_set_short(const char *val, struct kernel_param *kp);
extern int param_get_short(char *buffer, struct kernel_param *kp);
#define param_check_short(name, p) __param_check(name, p, short)
extern int param_get_invbool(char *buffer, struct kernel_param *kp);
#define param_check_invbool(name, p) __param_check(name, p, int)
-/* Comma-separated array: num is set to number they actually specified. */
-#define module_param_array_named(name, array, type, num, perm) \
+/* Comma-separated array: *nump is set to number they actually specified. */
+#define module_param_array_named(name, array, type, nump, perm) \
static struct kparam_array __param_arr_##name \
- = { ARRAY_SIZE(array), &num, param_set_##type, param_get_##type,\
+ = { ARRAY_SIZE(array), nump, param_set_##type, param_get_##type,\
sizeof(array[0]), array }; \
module_param_call(name, param_array_set, param_array_get, \
- &__param_arr_##name, perm)
+ &__param_arr_##name, perm); \
+ __MODULE_PARM_TYPE(name, "array of " #type)
-#define module_param_array(name, type, num, perm) \
- module_param_array_named(name, name, type, num, perm)
+#define module_param_array(name, type, nump, perm) \
+ module_param_array_named(name, name, type, nump, perm)
extern int param_array_set(const char *val, struct kernel_param *kp);
extern int param_array_get(char *buffer, struct kernel_param *kp);
extern int param_set_copystring(const char *val, struct kernel_param *kp);
+extern int param_get_string(char *buffer, struct kernel_param *kp);
+
+/* for exporting parameters in /sys/parameters */
+
+struct module;
+
+extern int module_param_sysfs_setup(struct module *mod,
+ struct kernel_param *kparam,
+ unsigned int num_params);
+
+extern void module_param_sysfs_remove(struct module *mod);
-int param_array(const char *name,
- const char *val,
- unsigned int min, unsigned int max,
- void *elem, int elemsize,
- int (*set)(const char *, struct kernel_param *kp),
- int *num);
#endif /* _LINUX_MODULE_PARAMS_H */