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-rw-r--r--include/linux/moduleparam.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 4a189dadb16..c83588c8d08 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -59,7 +59,7 @@ struct kparam_array
};
/* This is the fundamental function for registering boot/module
- parameters. perm sets the visibility in driverfs: 000 means it's
+ parameters. perm sets the visibility in sysfs: 000 means it's
not there, read bits mean it's readable, write bits mean it's
writable. */
#define __module_param_call(prefix, name, set, get, arg, perm) \
@@ -169,10 +169,22 @@ extern int param_get_string(char *buffer, struct kernel_param *kp);
struct module;
+#if defined(CONFIG_SYSFS) && defined(CONFIG_MODULES)
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);
+#else
+static inline int module_param_sysfs_setup(struct module *mod,
+ struct kernel_param *kparam,
+ unsigned int num_params)
+{
+ return 0;
+}
+
+static inline void module_param_sysfs_remove(struct module *mod)
+{ }
+#endif
#endif /* _LINUX_MODULE_PARAMS_H */