--- zzzz-none-000/linux-3.10.107/drivers/net/can/c_can/Makefile	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/net/can/c_can/Makefile	2021-02-04 17:41:59.000000000 +0000
@@ -5,5 +5,3 @@
 obj-$(CONFIG_CAN_C_CAN) += c_can.o
 obj-$(CONFIG_CAN_C_CAN_PLATFORM) += c_can_platform.o
 obj-$(CONFIG_CAN_C_CAN_PCI) += c_can_pci.o
-
-ccflags-$(CONFIG_CAN_DEBUG_DEVICES) := -DDEBUG