kconfig: add fallthrough comments to expr_compare_type()

Clarify the missing 'break' is intentional.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index 31737b2..bea82d5 100644 (file)
--- a/scripts/kconfig/expr.c
+++ b/scripts/kconfig/expr.c
@@ -1083,19 +1083,24 @@ static int expr_compare_type(enum expr_type t1, enum expr_type t2)
        case E_GTH:
                if (t2 == E_EQUAL || t2 == E_UNEQUAL)
                        return 1;
+               /* fallthrough */
        case E_EQUAL:
        case E_UNEQUAL:
                if (t2 == E_NOT)
                        return 1;
+               /* fallthrough */
        case E_NOT:
                if (t2 == E_AND)
                        return 1;
+               /* fallthrough */
        case E_AND:
                if (t2 == E_OR)
                        return 1;
+               /* fallthrough */
        case E_OR:
                if (t2 == E_LIST)
                        return 1;
+               /* fallthrough */
        default:
                break;
        }