diff --git a/src/bts.cpp b/src/bts.cpp
index 0e08091c..499c0334 100644
--- a/src/bts.cpp
+++ b/src/bts.cpp
@@ -70,6 +70,12 @@ extern "C" {
 	}
 }
 
+void bts_trx_free_all_tbf(struct gprs_rlcmac_trx *trx)
+{
+	for (uint8_t ts = 0; ts < 8; ts++)
+		pdch_free_all_tbf(&trx->pdch[ts]);
+}
+
 static struct osmo_tdef T_defs_bts[] = {
 	{ .T=3142, .default_val=20,  .unit=OSMO_TDEF_S,  .desc="timer (s)", .val=0 },
 	{ .T=3169, .default_val=5,   .unit=OSMO_TDEF_S,  .desc="Reuse of USF and TFI(s) after the MS uplink TBF assignment is invalid (s)", .val=0 },
diff --git a/src/bts.h b/src/bts.h
index 8d069392..37fc5dc6 100644
--- a/src/bts.h
+++ b/src/bts.h
@@ -65,6 +65,7 @@ extern "C" {
 #endif
 void bts_trx_reserve_slots(struct gprs_rlcmac_trx *trx, enum gprs_rlcmac_tbf_direction dir, uint8_t slots);
 void bts_trx_unreserve_slots(struct gprs_rlcmac_trx *trx, enum gprs_rlcmac_tbf_direction dir, uint8_t slots);
+void bts_trx_free_all_tbf(struct gprs_rlcmac_trx *trx);
 
 void bts_update_tbf_ta(const char *p, uint32_t fn, uint8_t trx_no, uint8_t ts, int8_t ta, bool is_rach);
 #ifdef __cplusplus
diff --git a/src/osmobts_sock.cpp b/src/osmobts_sock.cpp
index d94c7e75..c68b7b9c 100644
--- a/src/osmobts_sock.cpp
+++ b/src/osmobts_sock.cpp
@@ -118,7 +118,7 @@ static void pcu_sock_close(int lost)
 			bts->trx[trx].pdch[ts].disable();
 /* FIXME: NOT ALL RESOURCES are freed in this case... inconsistent with the other code. Share the code with pcu_l1if.c
 for the reset. */
-		gprs_rlcmac_tbf::free_all(&bts->trx[trx]);
+		bts_trx_free_all_tbf(&bts->trx[trx]);
 	}
 
 	gprs_bssgp_destroy(bts);
diff --git a/src/pdch.cpp b/src/pdch.cpp
index c48c63ff..15fd139d 100644
--- a/src/pdch.cpp
+++ b/src/pdch.cpp
@@ -152,7 +152,7 @@ void gprs_rlcmac_pdch::free_resources()
 		return;
 
 	/* kick all TBF on slot */
-	gprs_rlcmac_tbf::free_all(this);
+	pdch_free_all_tbf(this);
 
 	/* flush all pending paging messages */
 	while ((pag = dequeue_paging()))
@@ -1017,3 +1017,17 @@ void gprs_rlcmac_pdch::update_ta(uint8_t tai, uint8_t ta)
 	OSMO_ASSERT(tai < PTCCH_TAI_NUM);
 	ptcch_msg[tai] = ta;
 }
+
+void pdch_free_all_tbf(struct gprs_rlcmac_pdch *pdch)
+{
+	for (uint8_t tfi = 0; tfi < 32; tfi++) {
+		struct gprs_rlcmac_tbf *tbf;
+
+		tbf = pdch->ul_tbf_by_tfi(tfi);
+		if (tbf)
+			tbf_free(tbf);
+		tbf = pdch->dl_tbf_by_tfi(tfi);
+		if (tbf)
+			tbf_free(tbf);
+	}
+}
diff --git a/src/pdch.h b/src/pdch.h
index 2413ef70..57e0f437 100644
--- a/src/pdch.h
+++ b/src/pdch.h
@@ -183,3 +183,11 @@ inline bool gprs_rlcmac_pdch::is_enabled() const
 }
 
 #endif /* __cplusplus */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+void pdch_free_all_tbf(struct gprs_rlcmac_pdch *pdch);
+#ifdef __cplusplus
+}
+#endif
diff --git a/src/tbf.cpp b/src/tbf.cpp
index 859ebcda..37af21f4 100644
--- a/src/tbf.cpp
+++ b/src/tbf.cpp
@@ -1045,26 +1045,6 @@ free_ret:
 	return NULL;
 }
 
-void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_trx *trx)
-{
-	for (uint8_t ts = 0; ts < 8; ts++)
-		free_all(&trx->pdch[ts]);
-}
-
-void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_pdch *pdch)
-{
-	for (uint8_t tfi = 0; tfi < 32; tfi++) {
-		struct gprs_rlcmac_tbf *tbf;
-
-		tbf = pdch->ul_tbf_by_tfi(tfi);
-		if (tbf)
-			tbf_free(tbf);
-		tbf = pdch->dl_tbf_by_tfi(tfi);
-		if (tbf)
-			tbf_free(tbf);
-	}
-}
-
 int gprs_rlcmac_tbf::establish_dl_tbf_on_pacch()
 {
 	struct gprs_rlcmac_dl_tbf *new_tbf = NULL;
diff --git a/src/tbf.h b/src/tbf.h
index 460de701..d616076d 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -215,9 +215,6 @@ struct gprs_rlcmac_tbf {
 	gprs_rlcmac_tbf(struct gprs_rlcmac_bts *bts_, GprsMs *ms, gprs_rlcmac_tbf_direction dir);
 	virtual ~gprs_rlcmac_tbf() {}
 
-	static void free_all(struct gprs_rlcmac_trx *trx);
-	static void free_all(struct gprs_rlcmac_pdch *pdch);
-
 	virtual gprs_rlc_window *window() = 0;
 
 	int setup(int8_t use_trx, bool single_slot);