luci-app-smartdns/htdocs/luci-static/resources/view/smartdns/smartdns.js

@@ -1038,13 +1038,6 @@ return view.extend({
 			return true;
 		}
 
-		// fallback
-		o = s.taboption("advanced", form.Flag, "fallback", _("Fallback"),
-			_("Mark this server as a fallback server, use it only when default servers fail."))
-		o.default = o.disabled
-		o.rmempty = true
-		o.modalonly = true    
-
 		// other args
 		o = s.taboption("advanced", form.Value, "addition_arg", _("Additional Server Args"),
 			_("Additional Args for upstream dns servers"))

smartdns/Makefile

@@ -108,7 +108,6 @@ define Build/Compile/smartdns-ui
 	CARGO_BUILD_ARGS="$(if $(strip $(RUST_PKG_FEATURES)),--features "$(strip $(RUST_PKG_FEATURES))") --profile $(CARGO_PKG_PROFILE)"
 	+$(CARGO_PKG_VARS) CARGO_BUILD_ARGS="$(CARGO_BUILD_ARGS)" CC=$(TARGET_CC) \
 	PATH="$$(PATH):$(CARGO_HOME)/bin" \
-	AWS_LC_SYS_CFLAGS="-O0" \
 	make -C $(PKG_BUILD_DIR)/plugin/smartdns-ui
 endef