diff --git a/cpu/kinetis/periph/i2c.c b/cpu/kinetis/periph/i2c.c
index 73254f8940..6da48d538b 100644
--- a/cpu/kinetis/periph/i2c.c
+++ b/cpu/kinetis/periph/i2c.c
@@ -38,11 +38,11 @@
 
 #define ENABLE_DEBUG        0
 /* Define ENABLE_TRACE to 1 to enable printing of all TX/RX bytes to UART for extra verbose debugging */
-#define ENABLE_TRACE        (1)
+#define ENABLE_TRACE        1
 /* Define ENABLE_INIT_DEBUG to 1 to enable DEBUG prints in i2c_init. Currently
  * this causes the system to hang when running i2c_init during boot because of
  * uninitialized stdio UART */
-#define ENABLE_INIT_DEBUG   (0)
+#define ENABLE_INIT_DEBUG   0
 #include "debug.h"
 
 #if ENABLE_TRACE
diff --git a/sys/analog_util/adc_util.c b/sys/analog_util/adc_util.c
index ba1ca7c9c4..1860716197 100644
--- a/sys/analog_util/adc_util.c
+++ b/sys/analog_util/adc_util.c
@@ -28,7 +28,7 @@
 #include "analog_util.h"
 #include "assert.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/auto_init/can/init.c b/sys/auto_init/can/init.c
index 7ce060490b..c3d7c34242 100644
--- a/sys/auto_init/can/init.c
+++ b/sys/auto_init/can/init.c
@@ -20,7 +20,7 @@
 
 #include <stdio.h>
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #include "can/dll.h"
diff --git a/sys/auto_init/multimedia/auto_init_dfplayer.c b/sys/auto_init/multimedia/auto_init_dfplayer.c
index 4b12190c84..c92711122a 100644
--- a/sys/auto_init/multimedia/auto_init_dfplayer.c
+++ b/sys/auto_init/multimedia/auto_init_dfplayer.c
@@ -25,7 +25,7 @@
 #include "dfplayer.h"
 #include "dfplayer_params.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/auto_init/security/auto_init_atca.c b/sys/auto_init/security/auto_init_atca.c
index 416e4d3083..a625c5aebd 100644
--- a/sys/auto_init/security/auto_init_atca.c
+++ b/sys/auto_init/security/auto_init_atca.c
@@ -20,7 +20,7 @@
 #include "atca.h"
 #include "atca_params.h"
 
-#define ENABLE_DEBUG                (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #define ATCA_NUMOF (ARRAY_SIZE(atca_params))
diff --git a/sys/can/conn/isotp.c b/sys/can/conn/isotp.c
index 3bc202f7d6..6a0acd20dd 100644
--- a/sys/can/conn/isotp.c
+++ b/sys/can/conn/isotp.c
@@ -29,7 +29,7 @@
 #include "utlist.h"
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #include "xtimer.h"
diff --git a/sys/can/conn/raw.c b/sys/can/conn/raw.c
index 08c6ea3ee2..0ba60c2c25 100644
--- a/sys/can/conn/raw.c
+++ b/sys/can/conn/raw.c
@@ -25,7 +25,7 @@
 #include "can/raw.h"
 #include "timex.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #include "xtimer.h"
diff --git a/sys/can/device.c b/sys/can/device.c
index 07afd9a40f..713356dab5 100644
--- a/sys/can/device.c
+++ b/sys/can/device.c
@@ -31,7 +31,7 @@
 #include "can/can_trx.h"
 #endif
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #ifndef CAN_DEVICE_MSG_QUEUE_SIZE
diff --git a/sys/can/dll.c b/sys/can/dll.c
index f918208e0b..d1ea773735 100644
--- a/sys/can/dll.c
+++ b/sys/can/dll.c
@@ -36,7 +36,7 @@
 #include "can/router.h"
 #include "utlist.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static candev_dev_t *candev_list[CAN_DLL_NUMOF];
diff --git a/sys/can/isotp/isotp.c b/sys/can/isotp/isotp.c
index dfc6a4f305..5142acfe8c 100644
--- a/sys/can/isotp/isotp.c
+++ b/sys/can/isotp/isotp.c
@@ -31,7 +31,7 @@
 #include "timex.h"
 #include "utlist.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #ifndef CAN_ISOTP_MSG_QUEUE_SIZE
diff --git a/sys/can/pkt.c b/sys/can/pkt.c
index 14747d7d70..b91863aa87 100644
--- a/sys/can/pkt.c
+++ b/sys/can/pkt.c
@@ -26,7 +26,7 @@
 #include "can/pkt.h"
 #include "mutex.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #define HANDLE_UNUSED 0
diff --git a/sys/can/router.c b/sys/can/router.c
index b009d6f5cb..316b87f1b8 100644
--- a/sys/can/router.c
+++ b/sys/can/router.c
@@ -34,10 +34,11 @@
 #include "mbox.h"
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if ENABLE_DEBUG
+/* For PRIu16 etc. */
 #include <inttypes.h>
 #endif
 
diff --git a/sys/clif/clif.c b/sys/clif/clif.c
index 74a817db3f..029aec3b9e 100644
--- a/sys/clif/clif.c
+++ b/sys/clif/clif.c
@@ -24,7 +24,7 @@
 #include "clif.h"
 #include "clif_internal.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* returns the correspondent attribute string */
diff --git a/sys/color/color.c b/sys/color/color.c
index c36e06ce98..2de73596ec 100644
--- a/sys/color/color.c
+++ b/sys/color/color.c
@@ -22,7 +22,7 @@
 
 #include "color.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 void color_rgb2hsv(color_rgb_t *rgb, color_hsv_t *hsv)
diff --git a/sys/ecc/golay2412.c b/sys/ecc/golay2412.c
index 43d01ed922..320a9fdd92 100644
--- a/sys/ecc/golay2412.c
+++ b/sys/ecc/golay2412.c
@@ -45,7 +45,7 @@
 #include "bitarithm.h"
 #include "ecc/golay2412.h"
 
-#define ENABLE_DEBUG        (0)
+#define ENABLE_DEBUG        0
 #include "debug.h"
 
 #if ENABLE_DEBUG
diff --git a/sys/ecc/hamming256.c b/sys/ecc/hamming256.c
index 293163874e..56b57c8e6f 100644
--- a/sys/ecc/hamming256.c
+++ b/sys/ecc/hamming256.c
@@ -40,7 +40,7 @@
 
 #include <stdint.h>
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 #include "ecc/hamming256.h"
 #include "bitarithm.h"
diff --git a/sys/evtimer/evtimer.c b/sys/evtimer/evtimer.c
index 7ec9beb800..b9f78afcf7 100644
--- a/sys/evtimer/evtimer.c
+++ b/sys/evtimer/evtimer.c
@@ -27,7 +27,7 @@
 
 #include "evtimer.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static void _add_event_to_list(evtimer_t *evtimer, evtimer_event_t *event)
diff --git a/sys/frac/frac.c b/sys/frac/frac.c
index e706da4426..121ea63a90 100644
--- a/sys/frac/frac.c
+++ b/sys/frac/frac.c
@@ -21,7 +21,7 @@
 #include "frac.h"
 #include "bitarithm.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 uint32_t gcd32(uint32_t u, uint32_t v)
diff --git a/sys/fs/constfs/constfs.c b/sys/fs/constfs/constfs.c
index ee05b40166..4048d196fb 100644
--- a/sys/fs/constfs/constfs.c
+++ b/sys/fs/constfs/constfs.c
@@ -29,7 +29,7 @@
 #include "fs/constfs.h"
 #include "vfs.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* File system operations */
diff --git a/sys/fs/devfs/auto_init_devfs.c b/sys/fs/devfs/auto_init_devfs.c
index 3237d066ce..7fa4d8eb49 100644
--- a/sys/fs/devfs/auto_init_devfs.c
+++ b/sys/fs/devfs/auto_init_devfs.c
@@ -23,7 +23,7 @@
 #include "fs/devfs.h"
 #include "random-vfs.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static vfs_mount_t _devfs_auto_init_mount = {
diff --git a/sys/fs/devfs/devfs.c b/sys/fs/devfs/devfs.c
index a2309e3406..7c54fb9002 100644
--- a/sys/fs/devfs/devfs.c
+++ b/sys/fs/devfs/devfs.c
@@ -29,7 +29,7 @@
 #include "vfs.h"
 #include "mutex.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/irq_handler/irq_handler.c b/sys/irq_handler/irq_handler.c
index e901061f4d..c303273b89 100644
--- a/sys/irq_handler/irq_handler.c
+++ b/sys/irq_handler/irq_handler.c
@@ -12,7 +12,7 @@
 
 #include "irq_handler.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* Stack for the interrupt event handler thread */
diff --git a/sys/matstat/matstat.c b/sys/matstat/matstat.c
index 35f549c188..a39aee19cc 100644
--- a/sys/matstat/matstat.c
+++ b/sys/matstat/matstat.c
@@ -9,7 +9,7 @@
 #include <stdint.h>
 #include "matstat.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 void matstat_clear(matstat_state_t *state)
diff --git a/sys/memarray/memarray.c b/sys/memarray/memarray.c
index f12c1856d6..9c1069726a 100644
--- a/sys/memarray/memarray.c
+++ b/sys/memarray/memarray.c
@@ -10,7 +10,7 @@
 #include <string.h>
 #include "memarray.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 void memarray_init(memarray_t *mem, void *data, size_t size, size_t num)
diff --git a/sys/net/application_layer/asymcute/asymcute.c b/sys/net/application_layer/asymcute/asymcute.c
index e53097c5c1..8dbc9000ae 100644
--- a/sys/net/application_layer/asymcute/asymcute.c
+++ b/sys/net/application_layer/asymcute/asymcute.c
@@ -28,7 +28,7 @@
 
 #include "net/asymcute.h"
 
-#define ENABLE_DEBUG            (0)
+#define ENABLE_DEBUG            0
 #include "debug.h"
 
 #define PROTOCOL_VERSION        (0x01)
diff --git a/sys/net/application_layer/cord/common/cord_common.c b/sys/net/application_layer/cord/common/cord_common.c
index 347d44bfea..19c3900ae9 100644
--- a/sys/net/application_layer/cord/common/cord_common.c
+++ b/sys/net/application_layer/cord/common/cord_common.c
@@ -24,7 +24,7 @@
 #include "net/gcoap.h"
 #include "net/cord/common.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 
diff --git a/sys/net/application_layer/cord/ep/cord_ep.c b/sys/net/application_layer/cord/ep/cord_ep.c
index 1495a7ebba..bd60b4c4d0 100644
--- a/sys/net/application_layer/cord/ep/cord_ep.c
+++ b/sys/net/application_layer/cord/ep/cord_ep.c
@@ -34,7 +34,7 @@
 #include "net/cord/ep_standalone.h"
 #endif
 
-#define ENABLE_DEBUG        (0)
+#define ENABLE_DEBUG        0
 #include "debug.h"
 
 #define FLAG_SUCCESS        (0x0001)
diff --git a/sys/net/application_layer/cord/ep/cord_ep_standalone.c b/sys/net/application_layer/cord/ep/cord_ep_standalone.c
index 1d38f9d78c..c671db3941 100644
--- a/sys/net/application_layer/cord/ep/cord_ep_standalone.c
+++ b/sys/net/application_layer/cord/ep/cord_ep_standalone.c
@@ -28,7 +28,7 @@
 #include "net/cord/config.h"
 #include "net/cord/ep_standalone.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG        0
 #include "debug.h"
 
 /* stack configuration */
diff --git a/sys/net/application_layer/cord/lc/cord_lc.c b/sys/net/application_layer/cord/lc/cord_lc.c
index 18dc084124..fa5323f125 100644
--- a/sys/net/application_layer/cord/lc/cord_lc.c
+++ b/sys/net/application_layer/cord/lc/cord_lc.c
@@ -27,7 +27,7 @@
 #include "net/gcoap.h"
 #include "net/cord/lc.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #define FLAG_SUCCESS    (0x0001)
diff --git a/sys/net/application_layer/dhcpv6/client.c b/sys/net/application_layer/dhcpv6/client.c
index 53facef327..763f490825 100644
--- a/sys/net/application_layer/dhcpv6/client.c
+++ b/sys/net/application_layer/dhcpv6/client.c
@@ -26,7 +26,7 @@
 #include "xtimer.h"
 #include "xtimer/implementation.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #include "_dhcpv6.h"
diff --git a/sys/net/application_layer/emcute/emcute.c b/sys/net/application_layer/emcute/emcute.c
index 7ef7b272e0..b50aed81b6 100644
--- a/sys/net/application_layer/emcute/emcute.c
+++ b/sys/net/application_layer/emcute/emcute.c
@@ -32,7 +32,7 @@
 #include "net/mqttsn.h"
 #include "emcute_internal.h"
 
-#define ENABLE_DEBUG        (0)
+#define ENABLE_DEBUG        0
 #include "debug.h"
 
 #define PROTOCOL_VERSION    (0x01)
diff --git a/sys/net/application_layer/gcoap/gcoap.c b/sys/net/application_layer/gcoap/gcoap.c
index 56d8d6d5d6..efcd2a64d3 100644
--- a/sys/net/application_layer/gcoap/gcoap.c
+++ b/sys/net/application_layer/gcoap/gcoap.c
@@ -33,7 +33,7 @@
 #include "random.h"
 #include "thread.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* Return values used by the _find_resource function. */
diff --git a/sys/net/application_layer/nanocoap/nanocoap.c b/sys/net/application_layer/nanocoap/nanocoap.c
index 6e076e4d06..8d62d987cc 100644
--- a/sys/net/application_layer/nanocoap/nanocoap.c
+++ b/sys/net/application_layer/nanocoap/nanocoap.c
@@ -29,7 +29,7 @@
 #include "bitarithm.h"
 #include "net/nanocoap.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/net/application_layer/nanocoap/sock.c b/sys/net/application_layer/nanocoap/sock.c
index 1860a292bc..11aa3a6e85 100644
--- a/sys/net/application_layer/nanocoap/sock.c
+++ b/sys/net/application_layer/nanocoap/sock.c
@@ -28,7 +28,7 @@
 #include "net/sock/udp.h"
 #include "timex.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 ssize_t nanocoap_request(coap_pkt_t *pkt, sock_udp_ep_t *local, sock_udp_ep_t *remote, size_t len)
diff --git a/sys/net/application_layer/sntp/sntp.c b/sys/net/application_layer/sntp/sntp.c
index 9d547faab4..ec6ee6b5b0 100644
--- a/sys/net/application_layer/sntp/sntp.c
+++ b/sys/net/application_layer/sntp/sntp.c
@@ -26,7 +26,7 @@
 #include "mutex.h"
 #include "byteorder.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static sock_udp_t _sntp_sock;
diff --git a/sys/net/ble/skald/skald.c b/sys/net/ble/skald/skald.c
index c8eabc24c4..b85952edda 100644
--- a/sys/net/ble/skald/skald.c
+++ b/sys/net/ble/skald/skald.c
@@ -36,7 +36,7 @@
 #error "[skald] error: unable to find any netdev-ble capable radio"
 #endif
 
-#define ENABLE_DEBUG            (0)
+#define ENABLE_DEBUG            0
 #include "debug.h"
 
 #define JITTER_MIN              (0U)            /* 0ms */
diff --git a/sys/net/credman/credman.c b/sys/net/credman/credman.c
index eb89b9220e..c165d5938b 100644
--- a/sys/net/credman/credman.c
+++ b/sys/net/credman/credman.c
@@ -22,7 +22,7 @@
 #include <assert.h>
 #include <string.h>
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static mutex_t _mutex = MUTEX_INIT;
diff --git a/sys/net/crosslayer/inet_csum/inet_csum.c b/sys/net/crosslayer/inet_csum/inet_csum.c
index c9cd7c7e78..7e47455450 100644
--- a/sys/net/crosslayer/inet_csum/inet_csum.c
+++ b/sys/net/crosslayer/inet_csum/inet_csum.c
@@ -17,7 +17,7 @@
 #include "od.h"
 #include "net/inet_csum.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 uint16_t inet_csum_slice(uint16_t sum, const uint8_t *buf, uint16_t len, size_t accum_len)
diff --git a/sys/net/gnrc/application_layer/dhcpv6/client.c b/sys/net/gnrc/application_layer/dhcpv6/client.c
index 6788ba6871..9dfd1629b4 100644
--- a/sys/net/gnrc/application_layer/dhcpv6/client.c
+++ b/sys/net/gnrc/application_layer/dhcpv6/client.c
@@ -28,7 +28,7 @@
 
 #include "net/dhcpv6/client.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static char addr_str[IPV6_ADDR_MAX_STR_LEN];
diff --git a/sys/net/gnrc/link_layer/gomach/timeout.c b/sys/net/gnrc/link_layer/gomach/timeout.c
index c7cc8a2bd6..9d1523679b 100644
--- a/sys/net/gnrc/link_layer/gomach/timeout.c
+++ b/sys/net/gnrc/link_layer/gomach/timeout.c
@@ -24,7 +24,7 @@
 #include "net/gnrc/gomach/timeout.h"
 #include "net/gnrc/gomach/types.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* Return index >= 0 if found, -ENONENT if not found. */
diff --git a/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan.c b/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan.c
index fc5bd3b385..5d68f246d8 100644
--- a/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan.c
+++ b/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan.c
@@ -26,7 +26,7 @@
 #include "net/loramac.h"
 #include "net/gnrc/lorawan/region.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* This factor is used for converting "real" seconds into microcontroller
diff --git a/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_mcps.c b/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_mcps.c
index 7ebd8412b6..09f55f4bf5 100644
--- a/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_mcps.c
+++ b/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_mcps.c
@@ -26,7 +26,7 @@
 
 #include "random.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG      0
 #include "debug.h"
 
 #define _16_UPPER_BITMASK 0xFFFF0000
diff --git a/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_mlme.c b/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_mlme.c
index 9993b07f50..46829b026f 100644
--- a/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_mlme.c
+++ b/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_mlme.c
@@ -27,7 +27,7 @@
 
 #include "net/lorawan/hdr.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static void _build_join_req_pkt(uint8_t *appeui, uint8_t *deveui,
diff --git a/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_region.c b/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_region.c
index 4f885bb8f4..69441469c4 100644
--- a/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_region.c
+++ b/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_region.c
@@ -15,7 +15,7 @@
 #include "kernel_defines.h"
 #include "net/gnrc/lorawan/region.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #define GNRC_LORAWAN_DATARATES_NUMOF (6U)
diff --git a/sys/net/gnrc/link_layer/lwmac/lwmac_internal.c b/sys/net/gnrc/link_layer/lwmac/lwmac_internal.c
index d2475c50ff..112228ec7a 100644
--- a/sys/net/gnrc/link_layer/lwmac/lwmac_internal.c
+++ b/sys/net/gnrc/link_layer/lwmac/lwmac_internal.c
@@ -30,7 +30,7 @@
 #include "net/gnrc/netif/ieee802154.h"
 #include "net/netdev/ieee802154.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 int _gnrc_lwmac_transmit(gnrc_netif_t *netif, gnrc_pktsnip_t *pkt)
diff --git a/sys/net/gnrc/link_layer/lwmac/rx_state_machine.c b/sys/net/gnrc/link_layer/lwmac/rx_state_machine.c
index c706138180..8cb136d4c1 100644
--- a/sys/net/gnrc/link_layer/lwmac/rx_state_machine.c
+++ b/sys/net/gnrc/link_layer/lwmac/rx_state_machine.c
@@ -28,7 +28,7 @@
 #include "include/rx_state_machine.h"
 #include "include/lwmac_internal.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #ifndef LOG_LEVEL
diff --git a/sys/net/gnrc/link_layer/lwmac/timeout.c b/sys/net/gnrc/link_layer/lwmac/timeout.c
index 67db7437ee..73e4357fa4 100644
--- a/sys/net/gnrc/link_layer/lwmac/timeout.c
+++ b/sys/net/gnrc/link_layer/lwmac/timeout.c
@@ -24,7 +24,7 @@
 
 #include "net/gnrc/lwmac/timeout.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static const char *lwmac_timeout_names[] = {
diff --git a/sys/net/gnrc/link_layer/mac/internal.c b/sys/net/gnrc/link_layer/mac/internal.c
index f3c8076737..47a49a2981 100644
--- a/sys/net/gnrc/link_layer/mac/internal.c
+++ b/sys/net/gnrc/link_layer/mac/internal.c
@@ -25,7 +25,7 @@
 #include "net/gnrc.h"
 #include "net/gnrc/mac/internal.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if ((GNRC_MAC_TX_QUEUE_SIZE != 0) || (GNRC_MAC_RX_QUEUE_SIZE != 0))
diff --git a/sys/net/gnrc/link_layer/mac/timeout.c b/sys/net/gnrc/link_layer/mac/timeout.c
index 1fc866eb3a..adac2d0761 100644
--- a/sys/net/gnrc/link_layer/mac/timeout.c
+++ b/sys/net/gnrc/link_layer/mac/timeout.c
@@ -24,7 +24,7 @@
 #include "net/gnrc.h"
 #include "net/gnrc/mac/timeout.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 void gnrc_mac_init_timeouts(gnrc_mac_timeout_t *mac_timeout,
diff --git a/sys/net/gnrc/netapi/gnrc_netapi.c b/sys/net/gnrc/netapi/gnrc_netapi.c
index dc9d827264..9659168602 100644
--- a/sys/net/gnrc/netapi/gnrc_netapi.c
+++ b/sys/net/gnrc/netapi/gnrc_netapi.c
@@ -27,7 +27,7 @@
 #include "net/gnrc/pktbuf.h"
 #include "net/gnrc/netapi.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 int _gnrc_netapi_get_set(kernel_pid_t pid, netopt_t opt, uint16_t context,
diff --git a/sys/net/gnrc/netif/ethernet/gnrc_netif_ethernet.c b/sys/net/gnrc/netif/ethernet/gnrc_netif_ethernet.c
index c69201f8ed..432acc2b9e 100644
--- a/sys/net/gnrc/netif/ethernet/gnrc_netif_ethernet.c
+++ b/sys/net/gnrc/netif/ethernet/gnrc_netif_ethernet.c
@@ -25,7 +25,7 @@
 #include "net/ipv6/hdr.h"
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if defined(MODULE_OD) && ENABLE_DEBUG
diff --git a/sys/net/gnrc/netif/gnrc_netif.c b/sys/net/gnrc/netif/gnrc_netif.c
index ac7d50c4ca..54ebcf8713 100644
--- a/sys/net/gnrc/netif/gnrc_netif.c
+++ b/sys/net/gnrc/netif/gnrc_netif.c
@@ -44,7 +44,7 @@
 #include "net/gnrc/netif.h"
 #include "net/gnrc/netif/internal.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static void _update_l2addr_from_dev(gnrc_netif_t *netif);
diff --git a/sys/net/gnrc/netif/gnrc_netif_raw.c b/sys/net/gnrc/netif/gnrc_netif_raw.c
index 4c70a807c1..2a6d5188d2 100644
--- a/sys/net/gnrc/netif/gnrc_netif_raw.c
+++ b/sys/net/gnrc/netif/gnrc_netif_raw.c
@@ -17,7 +17,7 @@
 #include "net/gnrc/netif/hdr.h"
 #include "net/gnrc/netif/raw.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG    0
 #include "debug.h"
 
 #define IP_VERSION_MASK (0xf0U)
diff --git a/sys/net/gnrc/netif/ieee802154/gnrc_netif_ieee802154.c b/sys/net/gnrc/netif/ieee802154/gnrc_netif_ieee802154.c
index 23b4c90eeb..2260a3c7e5 100644
--- a/sys/net/gnrc/netif/ieee802154/gnrc_netif_ieee802154.c
+++ b/sys/net/gnrc/netif/ieee802154/gnrc_netif_ieee802154.c
@@ -21,7 +21,7 @@
 #include "net/ipv6/hdr.h"
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if defined(MODULE_OD) && ENABLE_DEBUG
diff --git a/sys/net/gnrc/netif/init_devs/auto_init_cc110x.c b/sys/net/gnrc/netif/init_devs/auto_init_cc110x.c
index a6c7f5f88b..ca4d76c586 100644
--- a/sys/net/gnrc/netif/init_devs/auto_init_cc110x.c
+++ b/sys/net/gnrc/netif/init_devs/auto_init_cc110x.c
@@ -25,7 +25,8 @@
 #include "log.h"
 #include "msg.h"
 #include "net/gnrc/netif/conf.h"    /* <- GNRC_NETIF_MSG_QUEUE_SIZE */
-#define ENABLE_DEBUG    (0)
+
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #ifndef CC110X_EXTRA_STACKSIZE
diff --git a/sys/net/gnrc/netif/init_devs/auto_init_socket_zep.c b/sys/net/gnrc/netif/init_devs/auto_init_socket_zep.c
index 511404c0c8..3218643d8b 100644
--- a/sys/net/gnrc/netif/init_devs/auto_init_socket_zep.c
+++ b/sys/net/gnrc/netif/init_devs/auto_init_socket_zep.c
@@ -22,7 +22,7 @@
 #include "socket_zep_params.h"
 #include "net/gnrc/netif/ieee802154.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/net/gnrc/netif/lorawan/gnrc_netif_lorawan.c b/sys/net/gnrc/netif/lorawan/gnrc_netif_lorawan.c
index c8d2e516d5..44db786a6e 100644
--- a/sys/net/gnrc/netif/lorawan/gnrc_netif_lorawan.c
+++ b/sys/net/gnrc/netif/lorawan/gnrc_netif_lorawan.c
@@ -25,7 +25,7 @@
 #include "net/loramac.h"
 #include "net/gnrc/netreg.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static uint8_t _nwkskey[LORAMAC_NWKSKEY_LEN] = LORAMAC_NWK_SKEY_DEFAULT;
diff --git a/sys/net/gnrc/network_layer/icmpv6/echo/gnrc_icmpv6_echo.c b/sys/net/gnrc/network_layer/icmpv6/echo/gnrc_icmpv6_echo.c
index 3dab8b777d..ef4e1ae4c6 100644
--- a/sys/net/gnrc/network_layer/icmpv6/echo/gnrc_icmpv6_echo.c
+++ b/sys/net/gnrc/network_layer/icmpv6/echo/gnrc_icmpv6_echo.c
@@ -20,7 +20,7 @@
 #include "net/gnrc/ipv6/hdr.h"
 #include "utlist.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if ENABLE_DEBUG
diff --git a/sys/net/gnrc/network_layer/icmpv6/error/gnrc_icmpv6_error.c b/sys/net/gnrc/network_layer/icmpv6/error/gnrc_icmpv6_error.c
index a7a6e3e585..4ce9ec5be8 100644
--- a/sys/net/gnrc/network_layer/icmpv6/error/gnrc_icmpv6_error.c
+++ b/sys/net/gnrc/network_layer/icmpv6/error/gnrc_icmpv6_error.c
@@ -21,7 +21,7 @@
 
 #include "net/gnrc/icmpv6/error.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* all error messages are basically the same size and format */
diff --git a/sys/net/gnrc/network_layer/icmpv6/gnrc_icmpv6.c b/sys/net/gnrc/network_layer/icmpv6/gnrc_icmpv6.c
index c1ed9f0c14..ded5a9f15c 100644
--- a/sys/net/gnrc/network_layer/icmpv6/gnrc_icmpv6.c
+++ b/sys/net/gnrc/network_layer/icmpv6/gnrc_icmpv6.c
@@ -31,7 +31,7 @@
 #include "net/gnrc/icmpv6.h"
 #include "net/gnrc/icmpv6/echo.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static inline uint16_t _calc_csum(gnrc_pktsnip_t *hdr,
diff --git a/sys/net/gnrc/network_layer/ipv6/blacklist/gnrc_ipv6_blacklist.c b/sys/net/gnrc/network_layer/ipv6/blacklist/gnrc_ipv6_blacklist.c
index 721b9ef252..a0d9b8e3f3 100644
--- a/sys/net/gnrc/network_layer/ipv6/blacklist/gnrc_ipv6_blacklist.c
+++ b/sys/net/gnrc/network_layer/ipv6/blacklist/gnrc_ipv6_blacklist.c
@@ -19,7 +19,7 @@
 
 #include "net/gnrc/ipv6/blacklist.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 ipv6_addr_t gnrc_ipv6_blacklist[CONFIG_GNRC_IPV6_BLACKLIST_SIZE];
diff --git a/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c b/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c
index 7ba0fe1c01..769d845bd2 100644
--- a/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c
+++ b/sys/net/gnrc/network_layer/ipv6/ext/frag/gnrc_ipv6_ext_frag.c
@@ -31,7 +31,7 @@
 
 #include "net/gnrc/ipv6/ext/frag.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static gnrc_ipv6_ext_frag_send_t _snd_bufs[CONFIG_GNRC_IPV6_EXT_FRAG_SEND_SIZE];
diff --git a/sys/net/gnrc/network_layer/ipv6/ext/gnrc_ipv6_ext.c b/sys/net/gnrc/network_layer/ipv6/ext/gnrc_ipv6_ext.c
index 3eb7bbe5af..80592159d8 100644
--- a/sys/net/gnrc/network_layer/ipv6/ext/gnrc_ipv6_ext.c
+++ b/sys/net/gnrc/network_layer/ipv6/ext/gnrc_ipv6_ext.c
@@ -35,7 +35,7 @@
 
 #include "net/gnrc/ipv6/ext.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/net/gnrc/network_layer/ipv6/ext/opt/gnrc_ipv6_ext_opt.c b/sys/net/gnrc/network_layer/ipv6/ext/opt/gnrc_ipv6_ext_opt.c
index 0404a8af21..54cef17f43 100644
--- a/sys/net/gnrc/network_layer/ipv6/ext/opt/gnrc_ipv6_ext_opt.c
+++ b/sys/net/gnrc/network_layer/ipv6/ext/opt/gnrc_ipv6_ext_opt.c
@@ -23,7 +23,7 @@
 
 #include "net/gnrc/ipv6/ext/opt.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/net/gnrc/network_layer/ipv6/ext/rh/gnrc_ipv6_ext_rh.c b/sys/net/gnrc/network_layer/ipv6/ext/rh/gnrc_ipv6_ext_rh.c
index 1084dfb346..c4cee6e16d 100644
--- a/sys/net/gnrc/network_layer/ipv6/ext/rh/gnrc_ipv6_ext_rh.c
+++ b/sys/net/gnrc/network_layer/ipv6/ext/rh/gnrc_ipv6_ext_rh.c
@@ -28,7 +28,7 @@
 
 #include "net/gnrc/ipv6/ext/rh.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* unchecked precondition: hdr is gnrc_pktsnip_t::data of the
diff --git a/sys/net/gnrc/network_layer/ipv6/gnrc_ipv6.c b/sys/net/gnrc/network_layer/ipv6/gnrc_ipv6.c
index 62216d035c..c8b424230d 100644
--- a/sys/net/gnrc/network_layer/ipv6/gnrc_ipv6.c
+++ b/sys/net/gnrc/network_layer/ipv6/gnrc_ipv6.c
@@ -37,22 +37,25 @@
 #include "net/gnrc/ipv6/ext/frag.h"
 #endif
 
+#ifdef MODULE_FIB
+#include "net/fib.h"
+#include "net/fib/table.h"
+#endif
+
 #include "net/gnrc/ipv6.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG        0
 #include "debug.h"
 
-#define _MAX_L2_ADDR_LEN    (8U)
-
 #if ENABLE_DEBUG
 static char _stack[GNRC_IPV6_STACK_SIZE + THREAD_EXTRA_STACKSIZE_PRINTF];
 #else
 static char _stack[GNRC_IPV6_STACK_SIZE];
 #endif
 
+#define _MAX_L2_ADDR_LEN    (8U)
+
 #ifdef MODULE_FIB
-#include "net/fib.h"
-#include "net/fib/table.h"
 /**
  * @brief buffer to store the entries in the IPv6 forwarding table
  */
diff --git a/sys/net/gnrc/network_layer/ipv6/hdr/gnrc_ipv6_hdr.c b/sys/net/gnrc/network_layer/ipv6/hdr/gnrc_ipv6_hdr.c
index e93be305eb..db888e7d9a 100644
--- a/sys/net/gnrc/network_layer/ipv6/hdr/gnrc_ipv6_hdr.c
+++ b/sys/net/gnrc/network_layer/ipv6/hdr/gnrc_ipv6_hdr.c
@@ -18,7 +18,7 @@
 #include "net/gnrc/pktbuf.h"
 #include "net/protnum.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if defined(MODULE_IPV6_ADDR)
diff --git a/sys/net/gnrc/network_layer/ipv6/nib/_nib-6ln.c b/sys/net/gnrc/network_layer/ipv6/nib/_nib-6ln.c
index 70dd4fbe19..cea439d7cf 100644
--- a/sys/net/gnrc/network_layer/ipv6/nib/_nib-6ln.c
+++ b/sys/net/gnrc/network_layer/ipv6/nib/_nib-6ln.c
@@ -23,7 +23,7 @@
 #include "_nib-6ln.h"
 #include "_nib-6lr.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if IS_ACTIVE(CONFIG_GNRC_IPV6_NIB_6LN)
diff --git a/sys/net/gnrc/network_layer/ipv6/nib/_nib-6lr.c b/sys/net/gnrc/network_layer/ipv6/nib/_nib-6lr.c
index 59b744bba6..1229a632a2 100644
--- a/sys/net/gnrc/network_layer/ipv6/nib/_nib-6lr.c
+++ b/sys/net/gnrc/network_layer/ipv6/nib/_nib-6lr.c
@@ -22,7 +22,7 @@
 
 #include "_nib-6lr.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if IS_ACTIVE(CONFIG_GNRC_IPV6_NIB_6LR)
diff --git a/sys/net/gnrc/network_layer/ipv6/nib/_nib-arsm.c b/sys/net/gnrc/network_layer/ipv6/nib/_nib-arsm.c
index f93f48a04e..93add394c3 100644
--- a/sys/net/gnrc/network_layer/ipv6/nib/_nib-arsm.c
+++ b/sys/net/gnrc/network_layer/ipv6/nib/_nib-arsm.c
@@ -28,7 +28,7 @@
 #include "_nib-router.h"
 #include "_nib-6lr.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static char addr_str[IPV6_ADDR_MAX_STR_LEN];
diff --git a/sys/net/gnrc/network_layer/ipv6/nib/_nib-internal.c b/sys/net/gnrc/network_layer/ipv6/nib/_nib-internal.c
index f5bacd74a4..f0278366cc 100644
--- a/sys/net/gnrc/network_layer/ipv6/nib/_nib-internal.c
+++ b/sys/net/gnrc/network_layer/ipv6/nib/_nib-internal.c
@@ -30,7 +30,7 @@
 #include "_nib-internal.h"
 #include "_nib-router.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* pointers for default router selection */
diff --git a/sys/net/gnrc/network_layer/ipv6/nib/_nib-router.c b/sys/net/gnrc/network_layer/ipv6/nib/_nib-router.c
index a945ec3231..89956794e0 100644
--- a/sys/net/gnrc/network_layer/ipv6/nib/_nib-router.c
+++ b/sys/net/gnrc/network_layer/ipv6/nib/_nib-router.c
@@ -29,7 +29,7 @@
 #endif  /* CONFIG_GNRC_IPV6_NIB_MULTIHOP_P6C */
 #include "_nib-router.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if IS_ACTIVE(CONFIG_GNRC_IPV6_NIB_ROUTER)
diff --git a/sys/net/gnrc/network_layer/ipv6/nib/_nib-slaac.c b/sys/net/gnrc/network_layer/ipv6/nib/_nib-slaac.c
index 59192ea745..1771eb119f 100644
--- a/sys/net/gnrc/network_layer/ipv6/nib/_nib-slaac.c
+++ b/sys/net/gnrc/network_layer/ipv6/nib/_nib-slaac.c
@@ -24,7 +24,7 @@
 #include "_nib-6ln.h"
 #include "_nib-arsm.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if IS_ACTIVE(CONFIG_GNRC_IPV6_NIB_6LN) || IS_ACTIVE(CONFIG_GNRC_IPV6_NIB_SLAAC)
diff --git a/sys/net/gnrc/network_layer/ipv6/nib/nib.c b/sys/net/gnrc/network_layer/ipv6/nib/nib.c
index d86810c95e..7120423969 100644
--- a/sys/net/gnrc/network_layer/ipv6/nib/nib.c
+++ b/sys/net/gnrc/network_layer/ipv6/nib/nib.c
@@ -40,8 +40,9 @@
 #include "_nib-6lr.h"
 #include "_nib-slaac.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
+
 #if ENABLE_DEBUG
 #include "evtimer.h"
 #endif
diff --git a/sys/net/gnrc/network_layer/ipv6/whitelist/gnrc_ipv6_whitelist.c b/sys/net/gnrc/network_layer/ipv6/whitelist/gnrc_ipv6_whitelist.c
index a4180d5034..2f6b4e9de7 100644
--- a/sys/net/gnrc/network_layer/ipv6/whitelist/gnrc_ipv6_whitelist.c
+++ b/sys/net/gnrc/network_layer/ipv6/whitelist/gnrc_ipv6_whitelist.c
@@ -18,7 +18,7 @@
 
 #include "net/gnrc/ipv6/whitelist.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 ipv6_addr_t gnrc_ipv6_whitelist[CONFIG_GNRC_IPV6_WHITELIST_SIZE];
diff --git a/sys/net/gnrc/network_layer/ndp/gnrc_ndp.c b/sys/net/gnrc/network_layer/ndp/gnrc_ndp.c
index b9c451bd03..2f3129b76e 100644
--- a/sys/net/gnrc/network_layer/ndp/gnrc_ndp.c
+++ b/sys/net/gnrc/network_layer/ndp/gnrc_ndp.c
@@ -28,7 +28,7 @@
 
 #include "timex.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* For PRIu8 etc. */
diff --git a/sys/net/gnrc/network_layer/sixlowpan/ctx/gnrc_sixlowpan_ctx.c b/sys/net/gnrc/network_layer/sixlowpan/ctx/gnrc_sixlowpan_ctx.c
index 6985a2faba..4c3b896282 100644
--- a/sys/net/gnrc/network_layer/sixlowpan/ctx/gnrc_sixlowpan_ctx.c
+++ b/sys/net/gnrc/network_layer/sixlowpan/ctx/gnrc_sixlowpan_ctx.c
@@ -19,7 +19,7 @@
 #include "net/gnrc/sixlowpan/ctx.h"
 #include "xtimer.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static gnrc_sixlowpan_ctx_t _ctxs[GNRC_SIXLOWPAN_CTX_SIZE];
diff --git a/sys/net/gnrc/network_layer/sixlowpan/frag/gnrc_sixlowpan_frag.c b/sys/net/gnrc/network_layer/sixlowpan/frag/gnrc_sixlowpan_frag.c
index d02761704a..454dd4d12b 100644
--- a/sys/net/gnrc/network_layer/sixlowpan/frag/gnrc_sixlowpan_frag.c
+++ b/sys/net/gnrc/network_layer/sixlowpan/frag/gnrc_sixlowpan_frag.c
@@ -27,7 +27,7 @@
 #include "net/sixlowpan.h"
 #include "utlist.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if ENABLE_DEBUG
diff --git a/sys/net/gnrc/network_layer/sixlowpan/frag/rb/gnrc_sixlowpan_frag_rb.c b/sys/net/gnrc/network_layer/sixlowpan/frag/rb/gnrc_sixlowpan_frag_rb.c
index 2b5d066838..bd79ff760a 100644
--- a/sys/net/gnrc/network_layer/sixlowpan/frag/rb/gnrc_sixlowpan_frag_rb.c
+++ b/sys/net/gnrc/network_layer/sixlowpan/frag/rb/gnrc_sixlowpan_frag_rb.c
@@ -36,7 +36,7 @@
 
 #include "net/gnrc/sixlowpan/frag/rb.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* estimated fragment payload size to determinate RBUF_INT_SIZE, default to
diff --git a/sys/net/gnrc/network_layer/sixlowpan/frag/vrb/gnrc_sixlowpan_frag_vrb.c b/sys/net/gnrc/network_layer/sixlowpan/frag/vrb/gnrc_sixlowpan_frag_vrb.c
index 13fe556d00..00159c3228 100644
--- a/sys/net/gnrc/network_layer/sixlowpan/frag/vrb/gnrc_sixlowpan_frag_vrb.c
+++ b/sys/net/gnrc/network_layer/sixlowpan/frag/vrb/gnrc_sixlowpan_frag_vrb.c
@@ -27,7 +27,7 @@
 #endif  /* MODULE_GNRC_SIXLOWPAN_FRAG_STATS */
 #include "net/gnrc/sixlowpan/frag/vrb.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static gnrc_sixlowpan_frag_vrb_t _vrb[CONFIG_GNRC_SIXLOWPAN_FRAG_VRB_SIZE];
diff --git a/sys/net/gnrc/network_layer/sixlowpan/gnrc_sixlowpan.c b/sys/net/gnrc/network_layer/sixlowpan/gnrc_sixlowpan.c
index 79283643c2..e4649a5de7 100644
--- a/sys/net/gnrc/network_layer/sixlowpan/gnrc_sixlowpan.c
+++ b/sys/net/gnrc/network_layer/sixlowpan/gnrc_sixlowpan.c
@@ -27,7 +27,7 @@
 #include "net/gnrc/netif.h"
 #include "net/sixlowpan.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static kernel_pid_t _pid = KERNEL_PID_UNDEF;
diff --git a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c b/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c
index 13ecfa1a29..bfe6fe7fc4 100644
--- a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c
+++ b/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c
@@ -38,7 +38,7 @@
 
 #include "net/gnrc/sixlowpan/iphc.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* dispatch byte definitions */
diff --git a/sys/net/gnrc/network_layer/sixlowpan/nd/gnrc_sixlowpan_nd.c b/sys/net/gnrc/network_layer/sixlowpan/nd/gnrc_sixlowpan_nd.c
index b454bdcfa7..7aa10eb516 100644
--- a/sys/net/gnrc/network_layer/sixlowpan/nd/gnrc_sixlowpan_nd.c
+++ b/sys/net/gnrc/network_layer/sixlowpan/nd/gnrc_sixlowpan_nd.c
@@ -24,7 +24,7 @@
 
 #include "net/gnrc/sixlowpan/nd.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 gnrc_pktsnip_t *gnrc_sixlowpan_nd_opt_ar_build(uint8_t status, uint16_t ltime, eui64_t *eui64,
diff --git a/sys/net/gnrc/pktbuf_malloc/gnrc_pktbuf_malloc.c b/sys/net/gnrc/pktbuf_malloc/gnrc_pktbuf_malloc.c
index 776067dca5..33b9cdde77 100644
--- a/sys/net/gnrc/pktbuf_malloc/gnrc_pktbuf_malloc.c
+++ b/sys/net/gnrc/pktbuf_malloc/gnrc_pktbuf_malloc.c
@@ -33,7 +33,7 @@
 #include "net/gnrc/nettype.h"
 #include "net/gnrc/pkt.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static mutex_t _mutex = MUTEX_INIT;
diff --git a/sys/net/gnrc/pktbuf_static/gnrc_pktbuf_static.c b/sys/net/gnrc/pktbuf_static/gnrc_pktbuf_static.c
index e9b34a4e84..73b96fe9c5 100644
--- a/sys/net/gnrc/pktbuf_static/gnrc_pktbuf_static.c
+++ b/sys/net/gnrc/pktbuf_static/gnrc_pktbuf_static.c
@@ -30,7 +30,7 @@
 #include "net/gnrc/nettype.h"
 #include "net/gnrc/pkt.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #define _ALIGNMENT_MASK    (sizeof(_unused_t) - 1)
diff --git a/sys/net/gnrc/routing/rpl/gnrc_rpl.c b/sys/net/gnrc/routing/rpl/gnrc_rpl.c
index 5ad711f711..154b031632 100644
--- a/sys/net/gnrc/routing/rpl/gnrc_rpl.c
+++ b/sys/net/gnrc/routing/rpl/gnrc_rpl.c
@@ -34,7 +34,7 @@
 #include "net/gnrc/rpl/p2p_dodag.h"
 #endif
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static char _stack[GNRC_RPL_STACK_SIZE];
diff --git a/sys/net/gnrc/routing/rpl/gnrc_rpl_auto_init.c b/sys/net/gnrc/routing/rpl/gnrc_rpl_auto_init.c
index e88ef84061..1944c23628 100644
--- a/sys/net/gnrc/routing/rpl/gnrc_rpl_auto_init.c
+++ b/sys/net/gnrc/routing/rpl/gnrc_rpl_auto_init.c
@@ -23,7 +23,7 @@
 #include "net/gnrc.h"
 #include "net/gnrc/rpl.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 void auto_init_gnrc_rpl(void)
diff --git a/sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c b/sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c
index 38bfd48811..5ebbf22857 100644
--- a/sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c
+++ b/sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c
@@ -43,7 +43,7 @@
 #include "net/gnrc/rpl/p2p.h"
 #endif
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static char addr_str[IPV6_ADDR_MAX_STR_LEN];
diff --git a/sys/net/gnrc/routing/rpl/gnrc_rpl_dodag.c b/sys/net/gnrc/routing/rpl/gnrc_rpl_dodag.c
index 5b82fb5e79..8b5e389c41 100644
--- a/sys/net/gnrc/routing/rpl/gnrc_rpl_dodag.c
+++ b/sys/net/gnrc/routing/rpl/gnrc_rpl_dodag.c
@@ -34,7 +34,7 @@
 #include "net/gnrc/rpl/p2p_dodag.h"
 #endif
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static char addr_str[IPV6_ADDR_MAX_STR_LEN];
diff --git a/sys/net/gnrc/routing/rpl/gnrc_rpl_of_manager.c b/sys/net/gnrc/routing/rpl/gnrc_rpl_of_manager.c
index 28842e74b9..1d1fa8db72 100644
--- a/sys/net/gnrc/routing/rpl/gnrc_rpl_of_manager.c
+++ b/sys/net/gnrc/routing/rpl/gnrc_rpl_of_manager.c
@@ -24,7 +24,7 @@
 #include "net/gnrc/rpl/of_manager.h"
 #include "of0.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 /* !!! TODO: port etx/mrhof to the new network stack */
 
diff --git a/sys/net/gnrc/routing/rpl/gnrc_rpl_validation.c b/sys/net/gnrc/routing/rpl/gnrc_rpl_validation.c
index 5b042a4e43..3ce6616e87 100644
--- a/sys/net/gnrc/routing/rpl/gnrc_rpl_validation.c
+++ b/sys/net/gnrc/routing/rpl/gnrc_rpl_validation.c
@@ -20,7 +20,7 @@
 #include "net/gnrc/rpl.h"
 #include "gnrc_rpl_internal/validation.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if ENABLE_DEBUG
diff --git a/sys/net/gnrc/routing/rpl/p2p/gnrc_rpl_p2p.c b/sys/net/gnrc/routing/rpl/p2p/gnrc_rpl_p2p.c
index 02f878c6d6..f28d5fb76e 100644
--- a/sys/net/gnrc/routing/rpl/p2p/gnrc_rpl_p2p.c
+++ b/sys/net/gnrc/routing/rpl/p2p/gnrc_rpl_p2p.c
@@ -27,7 +27,7 @@
 #include "net/gnrc/rpl/p2p_structs.h"
 #include "net/gnrc/rpl/p2p_dodag.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG                    0
 #include "debug.h"
 
 #if ENABLE_DEBUG
diff --git a/sys/net/gnrc/routing/rpl/p2p/gnrc_rpl_p2p_dodag.c b/sys/net/gnrc/routing/rpl/p2p/gnrc_rpl_p2p_dodag.c
index b0eb5e1e6b..5ba1438cb9 100644
--- a/sys/net/gnrc/routing/rpl/p2p/gnrc_rpl_p2p_dodag.c
+++ b/sys/net/gnrc/routing/rpl/p2p/gnrc_rpl_p2p_dodag.c
@@ -19,7 +19,7 @@
 #include "net/gnrc/rpl/p2p_dodag.h"
 #include "net/gnrc/rpl/p2p_structs.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 gnrc_rpl_p2p_ext_t *gnrc_rpl_p2p_ext_new(gnrc_rpl_dodag_t *dodag)
diff --git a/sys/net/gnrc/routing/rpl/srh/gnrc_rpl_srh.c b/sys/net/gnrc/routing/rpl/srh/gnrc_rpl_srh.c
index 33826b1b7a..e8fe002caf 100644
--- a/sys/net/gnrc/routing/rpl/srh/gnrc_rpl_srh.c
+++ b/sys/net/gnrc/routing/rpl/srh/gnrc_rpl_srh.c
@@ -21,15 +21,15 @@
 #include "net/gnrc/ipv6/ext/rh.h"
 #include "net/gnrc/rpl/srh.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG                0
 #include "debug.h"
 
-static char addr_str[IPV6_ADDR_MAX_STR_LEN];
-
 #define GNRC_RPL_SRH_PADDING(X)     ((X & 0xF0) >> 4)
 #define GNRC_RPL_SRH_COMPRE(X)      (X & 0x0F)
 #define GNRC_RPL_SRH_COMPRI(X)      ((X & 0xF0) >> 4)
 
+static char addr_str[IPV6_ADDR_MAX_STR_LEN];
+
 /* checks if multiple addresses within the source routing header exist on my
  * interfaces */
 static void *_contains_multiple_of_my_addr(const ipv6_addr_t *dst,
diff --git a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp.c b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp.c
index f7674dc3af..495cfd77ef 100644
--- a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp.c
+++ b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp.c
@@ -39,7 +39,7 @@
 #include "net/gnrc/ipv6.h"
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #define TCP_MSG_QUEUE_SIZE (1 << CONFIG_GNRC_TCP_MSG_QUEUE_SIZE_EXP)
diff --git a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_eventloop.c b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_eventloop.c
index e75ad0028c..6f601e18fe 100644
--- a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_eventloop.c
+++ b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_eventloop.c
@@ -32,7 +32,7 @@
 #include "net/gnrc/ipv6.h"
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #define TCP_EVENTLOOP_MSG_QUEUE_SIZE (1 << CONFIG_GNRC_TCP_EVENTLOOP_MSG_QUEUE_SIZE_EXP)
diff --git a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_fsm.c b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_fsm.c
index 4eb62cbd7f..7e311da9bc 100644
--- a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_fsm.c
+++ b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_fsm.c
@@ -35,7 +35,7 @@
 #include "net/gnrc/ipv6.h"
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_option.c b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_option.c
index 931eb66405..b2bc47735b 100644
--- a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_option.c
+++ b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_option.c
@@ -19,7 +19,7 @@
 #include "include/gnrc_tcp_common.h"
 #include "include/gnrc_tcp_option.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 int _gnrc_tcp_option_parse(gnrc_tcp_tcb_t *tcb, tcp_hdr_t *hdr)
diff --git a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_pkt.c b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_pkt.c
index 3c15dd74ac..70695d3e5c 100644
--- a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_pkt.c
+++ b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_pkt.c
@@ -33,7 +33,7 @@
 #include "net/gnrc/ipv6.h"
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_rcvbuf.c b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_rcvbuf.c
index 2fbfeda217..cff8a4d4cc 100644
--- a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_rcvbuf.c
+++ b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_rcvbuf.c
@@ -22,7 +22,7 @@
 #include "include/gnrc_tcp_common.h"
 #include "include/gnrc_tcp_rcvbuf.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/net/gnrc/transport_layer/udp/gnrc_udp.c b/sys/net/gnrc/transport_layer/udp/gnrc_udp.c
index c6f486d5e1..ae24f7993f 100644
--- a/sys/net/gnrc/transport_layer/udp/gnrc_udp.c
+++ b/sys/net/gnrc/transport_layer/udp/gnrc_udp.c
@@ -31,8 +31,7 @@
 #include "net/gnrc/icmpv6/error.h"
 #include "net/inet_csum.h"
 
-
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/net/link_layer/csma_sender/csma_sender.c b/sys/net/link_layer/csma_sender/csma_sender.c
index a79b8a2ea6..bf43528675 100644
--- a/sys/net/link_layer/csma_sender/csma_sender.c
+++ b/sys/net/link_layer/csma_sender/csma_sender.c
@@ -29,7 +29,7 @@
 
 #include "net/csma_sender.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #if ENABLE_DEBUG
diff --git a/sys/net/link_layer/l2filter/l2filter.c b/sys/net/link_layer/l2filter/l2filter.c
index b7df17a9e2..02b32584ae 100644
--- a/sys/net/link_layer/l2filter/l2filter.c
+++ b/sys/net/link_layer/l2filter/l2filter.c
@@ -23,7 +23,7 @@
 #include "assert.h"
 #include "net/l2filter.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static inline bool match(const l2filter_t *filter,
diff --git a/sys/net/network_layer/fib/fib.c b/sys/net/network_layer/fib/fib.c
index 100242c4e7..f0f370b627 100644
--- a/sys/net/network_layer/fib/fib.c
+++ b/sys/net/network_layer/fib/fib.c
@@ -31,7 +31,7 @@
 #include "timex.h"
 #include "utlist.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #include "net/fib.h"
diff --git a/sys/oneway-malloc/oneway-malloc.c b/sys/oneway-malloc/oneway-malloc.c
index dedb12bc0e..c79a199cc6 100644
--- a/sys/oneway-malloc/oneway-malloc.c
+++ b/sys/oneway-malloc/oneway-malloc.c
@@ -22,7 +22,7 @@
 
 #include "malloc.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 extern void *sbrk(int incr);
diff --git a/sys/pm_layered/pm.c b/sys/pm_layered/pm.c
index 4f0765dd23..4b7c47b608 100644
--- a/sys/pm_layered/pm.c
+++ b/sys/pm_layered/pm.c
@@ -24,7 +24,7 @@
 #include "periph/pm.h"
 #include "pm_layered.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #ifndef PM_NUM_MODES
diff --git a/sys/posix/pthread/pthread.c b/sys/posix/pthread/pthread.c
index c0544a9263..b78a4bade1 100644
--- a/sys/posix/pthread/pthread.c
+++ b/sys/posix/pthread/pthread.c
@@ -35,7 +35,7 @@
 #include <malloc.h>
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 
 #ifndef CONFIG_PTHREAD_REAPER_BASE_STACKSIZE
 #define CONFIG_PTHREAD_REAPER_BASE_STACKSIZE (THREAD_STACKSIZE_IDLE)
diff --git a/sys/posix/pthread/pthread_barrier.c b/sys/posix/pthread/pthread_barrier.c
index 80731f3f60..158524182c 100644
--- a/sys/posix/pthread/pthread_barrier.c
+++ b/sys/posix/pthread/pthread_barrier.c
@@ -20,7 +20,7 @@
 #include "sched.h"
 #include "pthread.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 int pthread_barrier_init(pthread_barrier_t *barrier,
diff --git a/sys/posix/pthread/pthread_rwlock.c b/sys/posix/pthread/pthread_rwlock.c
index 6e972a7468..200b412079 100644
--- a/sys/posix/pthread/pthread_rwlock.c
+++ b/sys/posix/pthread/pthread_rwlock.c
@@ -37,7 +37,7 @@
 
 #include "thread.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 int pthread_rwlock_init(pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr)
diff --git a/sys/posix/pthread/pthread_tls.c b/sys/posix/pthread/pthread_tls.c
index 5dc3fe764a..22c8f31c6c 100644
--- a/sys/posix/pthread/pthread_tls.c
+++ b/sys/posix/pthread/pthread_tls.c
@@ -22,7 +22,7 @@
 #include <malloc.h>
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 typedef struct __pthread_tls_datum {
diff --git a/sys/posix/semaphore/posix_semaphore.c b/sys/posix/semaphore/posix_semaphore.c
index b2f6bf995e..b5df5bc118 100644
--- a/sys/posix/semaphore/posix_semaphore.c
+++ b/sys/posix/semaphore/posix_semaphore.c
@@ -28,7 +28,7 @@
 #include "thread.h"
 #include "xtimer.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #include "semaphore.h"
diff --git a/sys/random/random.c b/sys/random/random.c
index e304e6fa39..7c93312bb1 100644
--- a/sys/random/random.c
+++ b/sys/random/random.c
@@ -36,7 +36,7 @@
 #include "luid.h"
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 void auto_init_random(void)
diff --git a/sys/sema/sema.c b/sys/sema/sema.c
index db7e9ea4ec..c3696be8df 100644
--- a/sys/sema/sema.c
+++ b/sys/sema/sema.c
@@ -21,7 +21,7 @@
 #include "sema.h"
 #include "xtimer.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 void sema_create(sema_t *sema, unsigned int value)
diff --git a/sys/suit/conditions.c b/sys/suit/conditions.c
index aa66866db9..3436a0d514 100644
--- a/sys/suit/conditions.c
+++ b/sys/suit/conditions.c
@@ -26,7 +26,7 @@
 #include "uuid.h"
 #include "luid.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #define SUIT_DEVID_BYTES 32
diff --git a/sys/suit/suit.c b/sys/suit/suit.c
index 1473982049..64c2a3eee3 100644
--- a/sys/suit/suit.c
+++ b/sys/suit/suit.c
@@ -31,7 +31,7 @@
 #include "suit/policy.h"
 #include "suit.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 int suit_parse(suit_manifest_t *manifest, const uint8_t *buf,
diff --git a/sys/suit/transport/coap.c b/sys/suit/transport/coap.c
index 080d6cf305..2a3c87b919 100644
--- a/sys/suit/transport/coap.c
+++ b/sys/suit/transport/coap.c
@@ -51,7 +51,7 @@
 #include "progress_bar.h"
 #endif
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #ifndef SUIT_COAP_STACKSIZE
diff --git a/sys/timex/timex.c b/sys/timex/timex.c
index cdb1c4d94f..3c768f807a 100644
--- a/sys/timex/timex.c
+++ b/sys/timex/timex.c
@@ -21,7 +21,7 @@
 #include <stdio.h>
 #include <inttypes.h>
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 #include "timex.h"
diff --git a/sys/trickle/trickle.c b/sys/trickle/trickle.c
index 1706e8750b..1b03b19b7f 100644
--- a/sys/trickle/trickle.c
+++ b/sys/trickle/trickle.c
@@ -20,7 +20,7 @@
 #include "random.h"
 #include "trickle.h"
 
-#define ENABLE_DEBUG        (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 void trickle_callback(trickle_t *trickle)
diff --git a/sys/universal_address/universal_address.c b/sys/universal_address/universal_address.c
index b6907370fe..6783605cbc 100644
--- a/sys/universal_address/universal_address.c
+++ b/sys/universal_address/universal_address.c
@@ -27,7 +27,7 @@
 #endif
 #include "mutex.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 #include "universal_address.h"
 
diff --git a/sys/uri_parser/uri_parser.c b/sys/uri_parser/uri_parser.c
index 8683da442c..6006386c07 100644
--- a/sys/uri_parser/uri_parser.c
+++ b/sys/uri_parser/uri_parser.c
@@ -22,7 +22,7 @@
 
 #include "uri_parser.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* strchr for non-Null-terminated strings (buffers) */
diff --git a/sys/usb/usbus/cdc/acm/cdc_acm.c b/sys/usb/usbus/cdc/acm/cdc_acm.c
index e88275a1d3..aac1dc6001 100644
--- a/sys/usb/usbus/cdc/acm/cdc_acm.c
+++ b/sys/usb/usbus/cdc/acm/cdc_acm.c
@@ -29,7 +29,7 @@
 #include "usb/usbus/cdc/acm.h"
 #include "usb/usbus/control.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static void _init(usbus_t *usbus, usbus_handler_t *handler);
diff --git a/sys/usb/usbus/cdc/ecm/cdc_ecm.c b/sys/usb/usbus/cdc/ecm/cdc_ecm.c
index 73dd7b3b04..f4da67efb9 100644
--- a/sys/usb/usbus/cdc/ecm/cdc_ecm.c
+++ b/sys/usb/usbus/cdc/ecm/cdc_ecm.c
@@ -31,7 +31,7 @@
 
 #include <string.h>
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static void _event_handler(usbus_t *usbus, usbus_handler_t *handler,
diff --git a/sys/usb/usbus/cdc/ecm/cdc_ecm_netdev.c b/sys/usb/usbus/cdc/ecm/cdc_ecm_netdev.c
index c40deb42e2..2009569990 100644
--- a/sys/usb/usbus/cdc/ecm/cdc_ecm_netdev.c
+++ b/sys/usb/usbus/cdc/ecm/cdc_ecm_netdev.c
@@ -30,7 +30,7 @@
 #include "net/netdev/eth.h"
 #include "usb/usbus/cdc/ecm.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static const netdev_driver_t netdev_driver_cdcecm;
diff --git a/sys/usb/usbus/usbus.c b/sys/usb/usbus/usbus.c
index 9ece7c1f9a..84a5437e1b 100644
--- a/sys/usb/usbus/usbus.c
+++ b/sys/usb/usbus/usbus.c
@@ -37,7 +37,7 @@
 #include <string.h>
 #include <errno.h>
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG             0
 #include "debug.h"
 
 #define _USBUS_MSG_QUEUE_SIZE    (16)
diff --git a/sys/usb/usbus/usbus_control.c b/sys/usb/usbus/usbus_control.c
index 8994f615bb..de1e1a1a76 100644
--- a/sys/usb/usbus/usbus_control.c
+++ b/sys/usb/usbus/usbus_control.c
@@ -28,7 +28,7 @@
 #include <string.h>
 #include <errno.h>
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static void _init(usbus_t *usbus, usbus_handler_t *handler);
diff --git a/sys/usb/usbus/usbus_control_slicer.c b/sys/usb/usbus/usbus_control_slicer.c
index ac30f0a863..567ee511aa 100644
--- a/sys/usb/usbus/usbus_control_slicer.c
+++ b/sys/usb/usbus/usbus_control_slicer.c
@@ -23,7 +23,7 @@
 #include "usb/usbus.h"
 #include "usb/usbus/control.h"
 
-#define ENABLE_DEBUG    (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 int usbus_control_slicer_nextslice(usbus_t *usbus)
diff --git a/sys/vfs/vfs.c b/sys/vfs/vfs.c
index 6cf7232d60..995709a4a8 100644
--- a/sys/vfs/vfs.c
+++ b/sys/vfs/vfs.c
@@ -29,7 +29,7 @@
 #include "kernel_types.h"
 #include "clist.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 #if ENABLE_DEBUG
 /* Since some of these functions are called by printf, we can't really call
diff --git a/sys/ztimer/convert_frac.c b/sys/ztimer/convert_frac.c
index 4cfbbf98e3..31e2bcd68a 100644
--- a/sys/ztimer/convert_frac.c
+++ b/sys/ztimer/convert_frac.c
@@ -30,7 +30,7 @@
 #include "ztimer/convert.h"
 #include "ztimer/convert_frac.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/sys/ztimer/core.c b/sys/ztimer/core.c
index 8a12a4ee89..15ddd79080 100644
--- a/sys/ztimer/core.c
+++ b/sys/ztimer/core.c
@@ -32,7 +32,7 @@
 #endif
 #include "ztimer.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static void _add_entry_to_list(ztimer_clock_t *clock, ztimer_base_t *entry);
diff --git a/sys/ztimer/mock.c b/sys/ztimer/mock.c
index b922aaa894..92150693d6 100644
--- a/sys/ztimer/mock.c
+++ b/sys/ztimer/mock.c
@@ -25,7 +25,7 @@
 #include <inttypes.h>
 #include "ztimer/mock.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* Functions for controlling the mock clock below */
diff --git a/sys/ztimer/periph_rtc.c b/sys/ztimer/periph_rtc.c
index 55053598f1..2e7442f4c1 100644
--- a/sys/ztimer/periph_rtc.c
+++ b/sys/ztimer/periph_rtc.c
@@ -24,7 +24,7 @@
 #include "periph/rtc.h"
 #include "ztimer/periph_rtc.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /* this algorithm and the one from _timestamp_to_gmt_civil() have been adapted from
diff --git a/sys/ztimer/periph_rtt.c b/sys/ztimer/periph_rtt.c
index f2fa4660da..74bdc227ec 100644
--- a/sys/ztimer/periph_rtt.c
+++ b/sys/ztimer/periph_rtt.c
@@ -25,7 +25,7 @@
 #include "periph/rtt.h"
 #include "ztimer/periph_rtt.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 static void _ztimer_periph_rtt_callback(void *arg)