kconfig: explicitly introduce expression list

Rename E_CHOICE to E_LIST to explicitly add support for expression
lists. Add a helper macro expr_list_for_each_sym to more easily iterate
over the list.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 497a19e85a07..ee5fe943d58d 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -312,7 +312,7 @@ load:
 
 int conf_read(const char *name)
 {
-        struct symbol *sym;
+        struct symbol *sym, *choice_sym;
         struct property *prop;
         struct expr *e;
         int i, flags;
@@ -353,9 +353,9 @@ int conf_read(const char *name)
                  */
                 prop = sym_get_choice_prop(sym);
                 flags = sym->flags;
-                for (e = prop->expr; e; e = e->left.expr)
-                        if (e->right.sym->visible != no)
-                                flags &= e->right.sym->flags;
+                expr_list_for_each_sym(prop->expr, e, choice_sym)
+                        if (choice_sym->visible != no)
+                                flags &= choice_sym->flags;
                 sym->flags &= flags | ~SYMBOL_DEF_USER;
         }