3 files changed, 36 insertions, 31 deletions

diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 5d0f4d97997f..7e0079936396 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -427,6 +427,12 @@ extern int param_set_bool(const char *val, const struct kernel_param *kp);
 extern int param_get_bool(char *buffer, const struct kernel_param *kp);
 #define param_check_bool(name, p) __param_check(name, p, bool)
 
+extern const struct kernel_param_ops param_ops_bool_enable_only;
+extern int param_set_bool_enable_only(const char *val,
+                                      const struct kernel_param *kp);
+/* getter is the same as for the regular bool */
+#define param_check_bool_enable_only param_check_bool
+
 extern const struct kernel_param_ops param_ops_invbool;
 extern int param_set_invbool(const char *val, const struct kernel_param *kp);
 extern int param_get_invbool(char *buffer, const struct kernel_param *kp);
diff --git a/kernel/module.c b/kernel/module.c
index 9e8c9305bba9..9b0e36145474 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -298,37 +298,6 @@ static bool sig_enforce = true;
 #else
 static bool sig_enforce = false;
 
-static int param_set_bool_enable_only(const char *val,
-                                      const struct kernel_param *kp)
-{
-        int err = 0;
-        bool new_value;
-        bool orig_value = *(bool *)kp->arg;
-        struct kernel_param dummy_kp = *kp;
-
-        dummy_kp.arg = &new_value;
-
-        err = param_set_bool(val, &dummy_kp);
-        if (err)
-                return err;
-
-        /* Don't let them unset it once it's set! */
-        if (!new_value && orig_value)
-                return -EROFS;
-
-        if (new_value)
-                err = param_set_bool(val, kp);
-
-        return err;
-}
-
-static const struct kernel_param_ops param_ops_bool_enable_only = {
-        .flags = KERNEL_PARAM_OPS_FL_NOARG,
-        .set = param_set_bool_enable_only,
-        .get = param_get_bool,
-};
-#define param_check_bool_enable_only param_check_bool
-
 module_param(sig_enforce, bool_enable_only, 0644);
 #endif /* !CONFIG_MODULE_SIG_FORCE */
 #endif /* CONFIG_MODULE_SIG */
diff --git a/kernel/params.c b/kernel/params.c
index b7635c025e9b..324624ed620f 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -335,6 +335,36 @@ const struct kernel_param_ops param_ops_bool = {
 };
 EXPORT_SYMBOL(param_ops_bool);
 
+int param_set_bool_enable_only(const char *val, const struct kernel_param *kp)
+{
+        int err = 0;
+        bool new_value;
+        bool orig_value = *(bool *)kp->arg;
+        struct kernel_param dummy_kp = *kp;
+
+        dummy_kp.arg = &new_value;
+
+        err = param_set_bool(val, &dummy_kp);
+        if (err)
+                return err;
+
+        /* Don't let them unset it once it's set! */
+        if (!new_value && orig_value)
+                return -EROFS;
+
+        if (new_value)
+                err = param_set_bool(val, kp);
+
+        return err;
+}
+EXPORT_SYMBOL_GPL(param_set_bool_enable_only);
+
+const struct kernel_param_ops param_ops_bool_enable_only = {
+        .flags = KERNEL_PARAM_OPS_FL_NOARG,
+        .set = param_set_bool_enable_only,
+        .get = param_get_bool,
+};
+
 /* This one must be bool. */
 int param_set_invbool(const char *val, const struct kernel_param *kp)
 {