Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6

[pandora-kernel.git] / scripts / kconfig / menu.c

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 8a8bc9b..5fdf10d 100644 (file)
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -140,6 +140,20 @@ struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *e
                }
                if (current_entry->prompt && current_entry != &rootmenu)
                        prop_warn(prop, "prompt redefined");
+
+               /* Apply all upper menus' visibilities to actual prompts. */
+               if(type == P_PROMPT) {
+                       struct menu *menu = current_entry;
+
+                       while ((menu = menu->parent) != NULL) {
+                               if (!menu->visibility)
+                                       continue;
+                               prop->visible.expr
+                                       = expr_alloc_and(prop->visible.expr,
+                                                        menu->visibility);
+                       }
+               }
+
                current_entry->prompt = prop;
        }
        prop->text = prompt;
@@ -152,6 +166,12 @@ 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);
@@ -419,6 +439,11 @@ 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);