1 files changed, 16 insertions, 8 deletions

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 4fb590247f33..b9d9aa18e6d6 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -10,7 +10,7 @@
 #include "lkc.h"
 
 static const char nohelp_text[] = N_(
-        "There is no help available for this kernel option.\n");
+        "There is no help available for this option.\n");
 
 struct menu rootmenu;
 static struct menu **last_entry_ptr;
@@ -107,7 +107,6 @@ static struct expr *menu_check_dep(struct expr *e)
 void menu_add_dep(struct expr *dep)
 {
         current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
-        current_entry->dir_dep = current_entry->dep;
 }
 
 void menu_set_type(int type)
@@ -139,7 +138,7 @@ struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *e
                         while (isspace(*prompt))
                                 prompt++;
                 }
-                if (current_entry->prompt)
+                if (current_entry->prompt && current_entry != &rootmenu)
                         prop_warn(prop, "prompt redefined");
                 current_entry->prompt = prop;
         }
@@ -153,6 +152,12 @@ struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr
         return menu_add_prop(type, prompt, NULL, dep);
 }
 
+void menu_add_visibility(struct expr *expr)
+{
+        current_entry->visibility = expr_alloc_and(current_entry->visibility,
+            expr);
+}
+
 void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
 {
         menu_add_prop(type, NULL, expr, dep);
@@ -291,10 +296,6 @@ void menu_finalize(struct menu *parent)
                 for (menu = parent->list; menu; menu = menu->next)
                         menu_finalize(menu);
         } else if (sym) {
-                /* ignore inherited dependencies for dir_dep */
-                sym->dir_dep.expr = expr_transform(expr_copy(parent->dir_dep));
-                sym->dir_dep.expr = expr_eliminate_dups(sym->dir_dep.expr);
-
                 basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
                 basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
                 basedep = expr_eliminate_dups(expr_transform(basedep));
@@ -325,6 +326,8 @@ void menu_finalize(struct menu *parent)
                         parent->next = last_menu->next;
                         last_menu->next = NULL;
                 }
+
+                sym->dir_dep.expr = parent->dep;
         }
         for (menu = parent->list; menu; menu = menu->next) {
                 if (sym && sym_is_choice(sym) &&
@@ -413,6 +416,11 @@ bool menu_is_visible(struct menu *menu)
         if (!menu->prompt)
                 return false;
 
+        if (menu->visibility) {
+                if (expr_calc_value(menu->visibility) == no)
+                        return no;
+        }
+
         sym = menu->sym;
         if (sym) {
                 sym_calc_value(sym);
@@ -566,7 +574,7 @@ void menu_get_ext_help(struct menu *menu, struct gstr *help)
 
         if (menu_has_help(menu)) {
                 if (sym->name) {
-                        str_printf(help, "CONFIG_%s:\n\n", sym->name);
+                        str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
                         str_append(help, _(menu_get_help(menu)));
                         str_append(help, "\n");
                 }