1 files changed, 12 insertions, 4 deletions

diff --git a/kernel/params.c b/kernel/params.c
index 508828afb874..f37d82631347 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -87,6 +87,8 @@ static int parse_one(char *param,
                      char *val,
                      const struct kernel_param *params,
                      unsigned num_params,
+                     s16 min_level,
+                     s16 max_level,
                      int (*handle_unknown)(char *param, char *val))
 {
         unsigned int i;
@@ -95,6 +97,9 @@ static int parse_one(char *param,
         /* Find parameter */
         for (i = 0; i < num_params; i++) {
                 if (parameq(param, params[i].name)) {
+                        if (params[i].level < min_level
+                            || params[i].level > max_level)
+                                return 0;
                         /* No one handled NULL, so do it here. */
                         if (!val && params[i].ops->set != param_set_bool
                             && params[i].ops->set != param_set_bint)
@@ -174,6 +179,8 @@ int parse_args(const char *name,
                char *args,
                const struct kernel_param *params,
                unsigned num,
+               s16 min_level,
+               s16 max_level,
                int (*unknown)(char *param, char *val))
 {
         char *param, *val;
@@ -189,7 +196,8 @@ int parse_args(const char *name,
 
                 args = next_arg(args, &param, &val);
                 irq_was_disabled = irqs_disabled();
-                ret = parse_one(param, val, params, num, unknown);
+                ret = parse_one(param, val, params, num,
+                                min_level, max_level, unknown);
                 if (irq_was_disabled && !irqs_disabled()) {
                         printk(KERN_WARNING "parse_args(): option '%s' enabled "
                                         "irq's!\n", param);
@@ -374,7 +382,7 @@ static int param_array(const char *name,
                        unsigned int min, unsigned int max,
                        void *elem, int elemsize,
                        int (*set)(const char *, const struct kernel_param *kp),
-                       u16 flags,
+                       s16 level,
                        unsigned int *num)
 {
         int ret;
@@ -384,7 +392,7 @@ static int param_array(const char *name,
         /* Get the name right for errors. */
         kp.name = name;
         kp.arg = elem;
-        kp.flags = flags;
+        kp.level = level;
 
         *num = 0;
         /* We expect a comma-separated list of values. */
@@ -425,7 +433,7 @@ static int param_array_set(const char *val, const struct kernel_param *kp)
         unsigned int temp_num;
 
         return param_array(kp->name, val, 1, arr->max, arr->elem,
-                           arr->elemsize, arr->ops->set, kp->flags,
+                           arr->elemsize, arr->ops->set, kp->level,
                            arr->num ?: &temp_num);
 }