diff --git a/src/host/layer23/include/osmocom/bb/mobile/gsm48_rr.h b/src/host/layer23/include/osmocom/bb/mobile/gsm48_rr.h
index 9b499a6be..0e270260d 100644
--- a/src/host/layer23/include/osmocom/bb/mobile/gsm48_rr.h
+++ b/src/host/layer23/include/osmocom/bb/mobile/gsm48_rr.h
@@ -149,7 +149,7 @@ struct gsm48_rrlayer {
 	/* channel request states */
 	uint8_t			wait_assign; /* waiting for assignment state */
 	uint8_t			n_chan_req; /* number left, incl. current */
-	uint8_t			chan_req_val; /* current request value */ 
+	uint8_t			chan_req_val; /* current request value */
 	uint8_t			chan_req_mask; /* mask of random bits */
 
 	/* state of dedicated mdoe */
diff --git a/src/host/layer23/include/osmocom/bb/mobile/mncc.h b/src/host/layer23/include/osmocom/bb/mobile/mncc.h
index ebc58a5ea..f5dbbe875 100644
--- a/src/host/layer23/include/osmocom/bb/mobile/mncc.h
+++ b/src/host/layer23/include/osmocom/bb/mobile/mncc.h
@@ -1,4 +1,4 @@
-/* GSM Mobile Radio Interface Layer 3 messages on the A-bis interface 
+/* GSM Mobile Radio Interface Layer 3 messages on the A-bis interface
  * 3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0 */
 
 /* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
diff --git a/src/host/layer23/src/common/sim.c b/src/host/layer23/src/common/sim.c
index 131a1ef09..8e0d7993b 100644
--- a/src/host/layer23/src/common/sim.c
+++ b/src/host/layer23/src/common/sim.c
@@ -239,7 +239,7 @@ int gsm_sim_job_dequeue(struct osmocom_ms *ms)
 		sim_process_job(ms);
 		return 1; /* work done */
 	}
-	
+
 	return 0;
 }
 
diff --git a/src/host/layer23/src/misc/cell_log.c b/src/host/layer23/src/misc/cell_log.c
index dc98383ea..57bed0f63 100644
--- a/src/host/layer23/src/misc/cell_log.c
+++ b/src/host/layer23/src/misc/cell_log.c
@@ -287,7 +287,7 @@ static void start_rach(void)
 	ncch->data[2] = (s->ccch_conf == 1) << 7;
 	ncch->data[3] = 0;
 	ncch->data[4] = RSL_IE_ACCESS_DELAY;
-	ncch->data[5] = 0; /* no delay */ 
+	ncch->data[5] = 0; /* no delay */
 	ncch->data[6] = RSL_IE_MS_POWER;
 	ncch->data[7] = 0; /* full power */
 
@@ -665,7 +665,7 @@ static int unit_data_ind(struct osmocom_ms *ms, struct msgb *msg)
 	struct abis_rsl_rll_hdr *rllh = msgb_l2(msg);
 	struct tlv_parsed tv;
 	uint8_t ch_type, ch_subch, ch_ts;
-	
+
 	DEBUGP(DRSL, "RSLms UNIT DATA IND chan_nr=0x%02x link_id=0x%02x\n",
 		rllh->chan_nr, rllh->link_id);
 
diff --git a/src/host/layer23/src/misc/rslms.c b/src/host/layer23/src/misc/rslms.c
index f7f6fcd8c..afb27270f 100644
--- a/src/host/layer23/src/misc/rslms.c
+++ b/src/host/layer23/src/misc/rslms.c
@@ -57,7 +57,7 @@ static int rslms_rx_udata_ind(struct msgb *msg, struct osmocom_ms *ms)
 	struct abis_rsl_rll_hdr *rllh = msgb_l2(msg);
 	struct tlv_parsed tv;
 	int rc = 0;
-	
+
 	DEBUGP(DRSL, "RSLms UNIT DATA IND chan_nr=0x%02x link_id=0x%02x\n",
 		rllh->chan_nr, rllh->link_id);
 
diff --git a/src/host/layer23/src/mobile/gsm480_ss.c b/src/host/layer23/src/mobile/gsm480_ss.c
index b68d542cb..b0a3dc97f 100644
--- a/src/host/layer23/src/mobile/gsm480_ss.c
+++ b/src/host/layer23/src/mobile/gsm480_ss.c
@@ -360,7 +360,7 @@ static const char *ss_code_by_char(const char *code, uint8_t *ss_code)
 static const char *decode_ss_code(uint8_t ss_code)
 {
 	static char unknown[16];
-	
+
 	switch (ss_code) {
 	case 33:
 		return "CFU";
@@ -642,7 +642,7 @@ int ss_send(struct osmocom_ms *ms, const char *code, int new_trans)
 			code++;
 
 		to = ss_code_by_char(code + 1, &ss_code);
-	
+
 		/* register */
 		if (ss_code && to && to[0] == '*') {
 			OSMO_STRLCPY_ARRAY(dest, to + 1);
@@ -660,7 +660,7 @@ int ss_send(struct osmocom_ms *ms, const char *code, int new_trans)
 		uint8_t ss_code = 0;
 
 		ss_code_by_char(code + 2, &ss_code);
-	
+
 		if (ss_code)
 			return gsm480_tx_cf(trans, GSM0480_MTYPE_REGISTER,
 				GSM0480_OP_CODE_ERASE_SS, ss_code, NULL);
@@ -670,7 +670,7 @@ int ss_send(struct osmocom_ms *ms, const char *code, int new_trans)
 		uint8_t ss_code = 0;
 
 		ss_code_by_char(code + 1, &ss_code);
-	
+
 		if (ss_code)
 			return gsm480_tx_cf(trans, GSM0480_MTYPE_REGISTER,
 				GSM0480_OP_CODE_DEACTIVATE_SS, ss_code, NULL);
@@ -708,7 +708,7 @@ static int parse_tag_asn1(const uint8_t *data, int len,
 	/* check for buffer overflow */
 	if (len < *tag_len)
 		return -1;
-	
+
 	/* return length */
 	return len;
 }
@@ -834,7 +834,7 @@ static int gsm480_rx_cf(struct gsm_trans *trans, const uint8_t *data,
 		vty_notify(ms, "Call Forwarding reply unsupported.\n");
 		return 0;
 	}
-	
+
 	while (len) {
 		/* sequence tag */
 		if (parse_tag_asn1(data, len, &tag_data, &tag_len) < 0) {