kconfig: use linked list in get_symbol_str() to iterate over menus

Currently, get_symbol_str() uses a tricky approach to traverse the
associated menus.

With relevant menus now linked to the symbol using a linked list,
use list_for_each_entry() for iterating on the menus.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>

scripts/kconfig/menu.c

@@ -771,6 +771,7 @@ static void get_symbol_str(struct gstr *r, struct symbol *sym,
 		    struct list_head *head)
 {
 	struct property *prop;
+	struct menu *menu;
 
 	if (sym && sym->name) {
 		str_printf(r, "Symbol: %s [=%s]\n", sym->name,
@@ -787,17 +788,17 @@ static void get_symbol_str(struct gstr *r, struct symbol *sym,
 	}
 
 	/* Print the definitions with prompts before the ones without */
-	for_all_properties(sym, prop, P_SYMBOL) {
-		if (prop->menu->prompt) {
-			get_def_str(r, prop->menu);
-			get_prompt_str(r, prop->menu->prompt, head);
+	list_for_each_entry(menu, &sym->menus, link) {
+		if (menu->prompt) {
+			get_def_str(r, menu);
+			get_prompt_str(r, menu->prompt, head);
 		}
 	}
 
-	for_all_properties(sym, prop, P_SYMBOL) {
-		if (!prop->menu->prompt) {
-			get_def_str(r, prop->menu);
-			get_dep_str(r, prop->menu->dep, "  Depends on: ");
+	list_for_each_entry(menu, &sym->menus, link) {
+		if (!menu->prompt) {
+			get_def_str(r, menu);
+			get_dep_str(r, menu->dep, "  Depends on: ");
 		}
 	}