kconfig/symbol.c: handle choice_values that depend on 'm' symbols

[carl9170fw.git] / config / symbol.c

diff --git a/config/symbol.c b/config/symbol.c
index 25cf0c2c0c795ac36658a2bfa061c9f3383630a1..2432298487fb330d04e365fa2b1c81ed6fbba691 100644 (file)
--- a/config/symbol.c
+++ b/config/symbol.c
@@ -209,12 +209,26 @@ static void sym_set_all_changed(void)
 static void sym_calc_visibility(struct symbol *sym)
 {
        struct property *prop;
+       struct symbol *choice_sym = NULL;
        tristate tri;
 
        /* any prompt visible? */
        tri = no;
+
+       if (sym_is_choice_value(sym))
+               choice_sym = prop_get_symbol(sym_get_choice_prop(sym));
+
        for_all_prompts(sym, prop) {
                prop->visible.tri = expr_calc_value(prop->visible.expr);
+               /*
+                * Tristate choice_values with visibility 'mod' are
+                * not visible if the corresponding choice's value is
+                * 'yes'.
+                */
+               if (choice_sym && sym->type == S_TRISTATE &&
+                   prop->visible.tri == mod && choice_sym->curr.tri == yes)
+                       prop->visible.tri = no;
+
                tri = EXPR_OR(tri, prop->visible.tri);
        }
        if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))