+ifeq ($(wildcard staging_dir/host/bin/quilt),)
+ prepare_kernel_conf:
+ @+$(SUBMAKE) -r tools/quilt/install
+else
+ prepare_kernel_conf: ;
+endif
+
+kernel_oldconfig: prepare_kernel_conf
+ $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux oldconfig
+
+kernel_menuconfig: prepare_kernel_conf
+ $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux menuconfig
+
+kernel_nconfig: prepare_kernel_conf
+ $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux nconfig