[BlueZ,1/1] shared/bass: Functions cleanup

Commit Message

Iulia Tanasescu Dec. 4, 2023, 4:59 p.m. UTC

This adds some cleanup in shared/bass code: use util_iov
APIs to extract/push bytes, use new0 to allocate structures,
remove redundant functions.

---
 src/shared/bass.c | 241 +++++++++++++++++++---------------------------
 1 file changed, 101 insertions(+), 140 deletions(-)

Comments

[e-mail] Dec. 4, 2023, 6:01 p.m. UTC | #1

This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=806714

---Test result---

Test Summary:
CheckPatch                    PASS      0.40 seconds
GitLint                       PASS      0.19 seconds
BuildEll                      PASS      24.39 seconds
BluezMake                     PASS      583.59 seconds
MakeCheck                     PASS      10.39 seconds
MakeDistcheck                 PASS      151.08 seconds
CheckValgrind                 PASS      210.49 seconds
CheckSmatch                   PASS      323.33 seconds
bluezmakeextell               PASS      98.66 seconds
IncrementalBuild              PASS      540.90 seconds
ScanBuild                     PASS      960.47 seconds



---
Regards,
Linux Bluetooth

Patch

diff --git a/src/shared/bass.c b/src/shared/bass.c
index ce8b239f3..3f5bf307c 100644
--- a/src/shared/bass.c
+++ b/src/shared/bass.c
@@ -132,22 +132,21 @@  static void bass_debug(struct bt_bass *bass, const char *format, ...)
 	va_end(ap);
 }
 
-static int
-bass_build_bcast_src_from_notif(struct bt_bcast_src *bcast_src,
+static int bass_build_bcast_src(struct bt_bcast_src *bcast_src,
 				const uint8_t *value, uint16_t length)
 {
 	struct bt_bass_subgroup_data *subgroup_data = NULL;
-	uint8_t *id;
-	uint8_t *addr_type;
+	uint8_t id;
+	uint8_t addr_type;
 	uint8_t *addr;
-	uint8_t *sid;
+	uint8_t sid;
 	uint32_t bid;
-	uint8_t *pa_sync_state;
-	uint8_t *enc;
+	uint8_t pa_sync_state;
+	uint8_t enc;
 	uint8_t *bad_code = NULL;
-	uint8_t *num_subgroups;
+	uint8_t num_subgroups;
 	uint32_t bis_sync_state;
-	uint8_t *meta_len;
+	uint8_t meta_len;
 	uint8_t *meta;
 
 	struct iovec iov = {
@@ -156,14 +155,12 @@  bass_build_bcast_src_from_notif(struct bt_bcast_src *bcast_src,
 	};
 
 	/* Extract all fields from notification */
-	id = util_iov_pull_mem(&iov, sizeof(*id));
-	if (!id) {
+	if (!util_iov_pull_u8(&iov, &id)) {
 		DBG(bcast_src->bass, "Unable to parse Broadcast Receive State");
 		return -1;
 	}
 
-	addr_type = util_iov_pull_mem(&iov, sizeof(*addr_type));
-	if (!addr_type) {
+	if (!util_iov_pull_u8(&iov, &addr_type)) {
 		DBG(bcast_src->bass, "Unable to parse Broadcast Receive State");
 		return -1;
 	}
@@ -174,8 +171,7 @@  bass_build_bcast_src_from_notif(struct bt_bcast_src *bcast_src,
 		return -1;
 	}
 
-	sid = util_iov_pull_mem(&iov, sizeof(*sid));
-	if (!sid) {
+	if (!util_iov_pull_u8(&iov, &sid)) {
 		DBG(bcast_src->bass, "Unable to parse Broadcast Receive State");
 		return -1;
 	}
@@ -185,19 +181,17 @@  bass_build_bcast_src_from_notif(struct bt_bcast_src *bcast_src,
 		return -1;
 	}
 
-	pa_sync_state = util_iov_pull_mem(&iov, sizeof(*pa_sync_state));
-	if (!pa_sync_state) {
+	if (!util_iov_pull_u8(&iov, &pa_sync_state)) {
 		DBG(bcast_src->bass, "Unable to parse Broadcast Receive State");
 		return -1;
 	}
 
-	enc = util_iov_pull_mem(&iov, sizeof(*enc));
-	if (!enc) {
+	if (!util_iov_pull_u8(&iov, &enc)) {
 		DBG(bcast_src->bass, "Unable to parse Broadcast Receive State");
 		return -1;
 	}
 
-	if (*enc == BT_BASS_BIG_ENC_STATE_BAD_CODE) {
+	if (enc == BT_BASS_BIG_ENC_STATE_BAD_CODE) {
 		bad_code = util_iov_pull_mem(&iov, BT_BASS_BCAST_CODE_SIZE);
 		if (!bad_code) {
 			DBG(bcast_src->bass, "Unable to parse "
@@ -206,24 +200,21 @@  bass_build_bcast_src_from_notif(struct bt_bcast_src *bcast_src,
 		}
 	}
 
-	num_subgroups = util_iov_pull_mem(&iov, sizeof(*num_subgroups));
-	if (!num_subgroups) {
+	if (!util_iov_pull_u8(&iov, &num_subgroups)) {
 		DBG(bcast_src->bass, "Unable to parse Broadcast Receive State");
 		return -1;
 	}
 
-	if (*num_subgroups == 0)
+	if (num_subgroups == 0)
 		goto done;
 
-	subgroup_data = malloc((*num_subgroups) * sizeof(*subgroup_data));
+	subgroup_data = new0(struct bt_bass_subgroup_data, 1);
 	if (!subgroup_data) {
 		DBG(bcast_src->bass, "Unable to allocate memory");
 		return -1;
 	}
 
-	memset(subgroup_data, 0, (*num_subgroups) * sizeof(*subgroup_data));
-
-	for (int i = 0; i < *num_subgroups; i++) {
+	for (int i = 0; i < num_subgroups; i++) {
 		if (!util_iov_pull_le32(&iov, &bis_sync_state)) {
 			DBG(bcast_src->bass, "Unable to parse "
 				"Broadcast Receive State");
@@ -237,8 +228,7 @@  bass_build_bcast_src_from_notif(struct bt_bcast_src *bcast_src,
 
 		subgroup_data[i].bis_sync = bis_sync_state;
 
-		meta_len = util_iov_pull_mem(&iov, sizeof(*meta_len));
-		if (!meta_len) {
+		if (!util_iov_pull_u8(&iov, &meta_len)) {
 			DBG(bcast_src->bass, "Unable to parse "
 				"Broadcast Receive State");
 
@@ -249,12 +239,12 @@  bass_build_bcast_src_from_notif(struct bt_bcast_src *bcast_src,
 			return -1;
 		}
 
-		subgroup_data[i].meta_len = *meta_len;
+		subgroup_data[i].meta_len = meta_len;
 
-		if (*meta_len == 0)
+		if (meta_len == 0)
 			continue;
 
-		subgroup_data[i].meta = malloc(*meta_len);
+		subgroup_data[i].meta = malloc0(meta_len);
 		if (!subgroup_data[i].meta) {
 			DBG(bcast_src->bass, "Unable to allocate memory");
 
@@ -265,7 +255,7 @@  bass_build_bcast_src_from_notif(struct bt_bcast_src *bcast_src,
 			return -1;
 		}
 
-		meta = util_iov_pull_mem(&iov, *meta_len);
+		meta = util_iov_pull_mem(&iov, meta_len);
 		if (!meta) {
 			DBG(bcast_src->bass, "Unable to parse "
 				"Broadcast Receive State");
@@ -277,7 +267,7 @@  bass_build_bcast_src_from_notif(struct bt_bcast_src *bcast_src,
 			return -1;
 		}
 
-		memcpy(subgroup_data[i].meta, meta, *meta_len);
+		memcpy(subgroup_data[i].meta, meta, meta_len);
 	}
 
 done:
@@ -292,41 +282,31 @@  done:
 		free(bcast_src->subgroup_data);
 	}
 
-	bcast_src->id = *id;
-	bcast_src->addr_type = *addr_type;
+	bcast_src->id = id;
+	bcast_src->addr_type = addr_type;
 	memcpy(&bcast_src->addr, addr, sizeof(bdaddr_t));
-	bcast_src->sid = *sid;
+	bcast_src->sid = sid;
 	bcast_src->bid = bid;
-	bcast_src->sync_state = *pa_sync_state;
-	bcast_src->enc = *enc;
+	bcast_src->sync_state = pa_sync_state;
+	bcast_src->enc = enc;
 
-	if (*enc == BT_BASS_BIG_ENC_STATE_BAD_CODE)
+	if (enc == BT_BASS_BIG_ENC_STATE_BAD_CODE)
 		memcpy(bcast_src->bad_code, bad_code, BT_BASS_BCAST_CODE_SIZE);
 	else
 		memset(bcast_src->bad_code, 0, BT_BASS_BCAST_CODE_SIZE);
 
-	bcast_src->num_subgroups = *num_subgroups;
+	bcast_src->num_subgroups = num_subgroups;
 
 	bcast_src->subgroup_data = subgroup_data;
 
 	return 0;
 }
 
-static int
-bass_build_bcast_src_from_read_rsp(struct bt_bcast_src *bcast_src,
-				const uint8_t *value, uint16_t length)
-{
-	return bass_build_bcast_src_from_notif(bcast_src, value, length);
-}
-
-static uint8_t *bass_build_notif_from_bcast_src(struct bt_bcast_src *bcast_src,
-							size_t *notif_len)
+static struct iovec *bass_parse_bcast_src(struct bt_bcast_src *bcast_src)
 {
 	size_t len = 0;
 	uint8_t *notif = NULL;
-	struct iovec iov;
-
-	*notif_len = 0;
+	struct iovec *iov;
 
 	if (!bcast_src)
 		return NULL;
@@ -342,61 +322,49 @@  static uint8_t *bass_build_notif_from_bcast_src(struct bt_bcast_src *bcast_src,
 		len += bcast_src->subgroup_data[i].meta_len;
 	}
 
-	notif = malloc(len);
+	notif = malloc0(len);
 	if (!notif)
 		return NULL;
 
-	memset(notif, 0, len);
+	iov = new0(struct iovec, 1);
+	if (!iov) {
+		free(notif);
+		return NULL;
+	}
 
-	iov.iov_base = notif;
-	iov.iov_len = 0;
+	iov->iov_base = notif;
+	iov->iov_len = 0;
 
-	util_iov_push_mem(&iov, sizeof(bcast_src->id),
-			&bcast_src->id);
-	util_iov_push_mem(&iov, sizeof(bcast_src->addr_type),
-			&bcast_src->addr_type);
-	util_iov_push_mem(&iov, sizeof(bcast_src->addr),
+	util_iov_push_u8(iov, bcast_src->id);
+	util_iov_push_u8(iov, bcast_src->addr_type);
+	util_iov_push_mem(iov, sizeof(bcast_src->addr),
 			&bcast_src->addr);
-	util_iov_push_mem(&iov, sizeof(bcast_src->sid),
-			&bcast_src->sid);
-	util_iov_push_le24(&iov, bcast_src->bid);
-	util_iov_push_mem(&iov, sizeof(bcast_src->sync_state),
-			&bcast_src->sync_state);
-	util_iov_push_mem(&iov, sizeof(bcast_src->enc),
-			&bcast_src->enc);
+	util_iov_push_u8(iov, bcast_src->sid);
+	util_iov_push_le24(iov, bcast_src->bid);
+	util_iov_push_u8(iov, bcast_src->sync_state);
+	util_iov_push_u8(iov, bcast_src->enc);
 
 	if (bcast_src->enc == BT_BASS_BIG_ENC_STATE_BAD_CODE)
-		util_iov_push_mem(&iov, sizeof(bcast_src->bad_code),
+		util_iov_push_mem(iov, sizeof(bcast_src->bad_code),
 					bcast_src->bad_code);
 
-	util_iov_push_mem(&iov, sizeof(bcast_src->num_subgroups),
-				&bcast_src->num_subgroups);
+	util_iov_push_u8(iov, bcast_src->num_subgroups);
 
 	for (size_t i = 0; i < bcast_src->num_subgroups; i++) {
 		/* Add subgroup bis_sync */
-		util_iov_push_le32(&iov, bcast_src->subgroup_data[i].bis_sync);
+		util_iov_push_le32(iov, bcast_src->subgroup_data[i].bis_sync);
 
 		/* Add subgroup meta_len */
-		util_iov_push_mem(&iov,
-			sizeof(bcast_src->subgroup_data[i].meta_len),
-			&bcast_src->subgroup_data[i].meta_len);
+		util_iov_push_u8(iov, bcast_src->subgroup_data[i].meta_len);
 
 		/* Add subgroup metadata */
 		if (bcast_src->subgroup_data[i].meta_len > 0)
-			util_iov_push_mem(&iov,
+			util_iov_push_mem(iov,
 				bcast_src->subgroup_data[i].meta_len,
 				bcast_src->subgroup_data[i].meta);
 	}
 
-	*notif_len = len;
-	return notif;
-}
-
-static uint8_t *
-bass_build_read_rsp_from_bcast_src(struct bt_bcast_src *bcast_src,
-					size_t *rsp_len)
-{
-	return bass_build_notif_from_bcast_src(bcast_src, rsp_len);
+	return iov;
 }
 
 static bool bass_check_cp_command_subgroup_data_len(uint8_t num_subgroups,
@@ -605,8 +573,7 @@  static void connect_cb(GIOChannel *io, GError *gerr,
 				gpointer user_data)
 {
 	struct bt_bcast_src *bcast_src = user_data;
-	uint8_t *notify_data;
-	size_t notify_data_len;
+	struct iovec *notif;
 	int bis_idx;
 	int i;
 
@@ -678,15 +645,16 @@  static void connect_cb(GIOChannel *io, GError *gerr,
 	}
 
 	/* Send notification to client */
-	notify_data = bass_build_notif_from_bcast_src(bcast_src,
-						&notify_data_len);
+	notif = bass_parse_bcast_src(bcast_src);
+	if (!notif)
+		return;
 
 	gatt_db_attribute_notify(bcast_src->attr,
-					(void *)notify_data,
-					notify_data_len,
+					notif->iov_base, notif->iov_len,
 					bt_bass_get_att(bcast_src->bass));
 
-	free(notify_data);
+	free(notif->iov_base);
+	free(notif);
 }
 
 static bool bass_trigger_big_sync(struct bt_bcast_src *bcast_src)
@@ -710,8 +678,7 @@  static void confirm_cb(GIOChannel *io, gpointer user_data)
 	int sk, err;
 	socklen_t len;
 	struct bt_iso_qos qos;
-	uint8_t *notify_data;
-	size_t notify_data_len;
+	struct iovec *notif;
 	GError *gerr = NULL;
 
 	if (check_io_err(io)) {
@@ -759,15 +726,16 @@  static void confirm_cb(GIOChannel *io, gpointer user_data)
 	bcast_src->enc = BT_BASS_BIG_ENC_STATE_BCODE_REQ;
 
 notify:
-	notify_data = bass_build_notif_from_bcast_src(bcast_src,
-						&notify_data_len);
+	notif = bass_parse_bcast_src(bcast_src);
+	if (!notif)
+		return;
 
 	gatt_db_attribute_notify(bcast_src->attr,
-					(void *)notify_data,
-					notify_data_len,
+					notif->iov_base, notif->iov_len,
 					bt_bass_get_att(bcast_src->bass));
 
-	free(notify_data);
+	free(notif->iov_base);
+	free(notif);
 }
 
 static struct bt_bass *bass_get_session(struct bt_att *att, struct gatt_db *db,
@@ -855,14 +823,13 @@  static void bass_handle_add_src_op(struct bt_bass *bass,
 	struct bt_bcast_src *bcast_src, *src;
 	uint8_t src_id = 0;
 	struct gatt_db_attribute *attr;
-	uint8_t *pa_sync;
+	uint8_t pa_sync;
 	GIOChannel *io;
 	GError *err = NULL;
 	struct bt_iso_qos iso_qos = default_qos;
 	uint8_t num_bis = 0;
 	uint8_t bis[ISO_MAX_NUM_BIS];
-	uint8_t *notify_data;
-	size_t notify_data_len;
+	struct iovec *notif;
 	uint8_t addr_type;
 
 	gatt_db_attribute_write_result(attrib, id, 0x00);
@@ -872,7 +839,7 @@  static void bass_handle_add_src_op(struct bt_bass *bass,
 		return;
 
 	/* Allocate a new broadcast source */
-	bcast_src = malloc(sizeof(*bcast_src));
+	bcast_src = new0(struct bt_bcast_src, 1);
 	if (!bcast_src) {
 		DBG(bass, "Unable to allocate broadcast source");
 		return;
@@ -880,7 +847,6 @@  static void bass_handle_add_src_op(struct bt_bass *bass,
 
 	queue_push_tail(bass->ldb->bcast_srcs, bcast_src);
 
-	memset(bcast_src, 0, sizeof(*bcast_src));
 	memset(bis, 0, ISO_MAX_NUM_BIS);
 
 	bcast_src->bass = bass;
@@ -932,36 +898,32 @@  static void bass_handle_add_src_op(struct bt_bass *bass,
 	bcast_src->id = src_id;
 
 	/* Populate broadcast source fields from command parameters */
-	bcast_src->addr_type = *(uint8_t *)util_iov_pull_mem(iov,
-					sizeof(bcast_src->addr_type));
+	util_iov_pull_u8(iov, &bcast_src->addr_type);
 
 	bacpy(&bcast_src->addr, (bdaddr_t *)util_iov_pull_mem(iov,
 						sizeof(bdaddr_t)));
-	bcast_src->sid = *(uint8_t *)util_iov_pull_mem(iov,
-						sizeof(bcast_src->sid));
+
+	util_iov_pull_u8(iov, &bcast_src->sid);
 	util_iov_pull_le24(iov, &bcast_src->bid);
 
-	pa_sync = util_iov_pull_mem(iov, sizeof(*pa_sync));
+	util_iov_pull_u8(iov, &pa_sync);
 	bcast_src->sync_state = BT_BASS_NOT_SYNCHRONIZED_TO_PA;
 
 	/* TODO: Use the pa_interval field for the sync transfer procedure */
 	util_iov_pull_mem(iov, sizeof(uint16_t));
 
-	bcast_src->num_subgroups = *(uint8_t *)util_iov_pull_mem(iov,
-					sizeof(bcast_src->num_subgroups));
+	util_iov_pull_u8(iov, &bcast_src->num_subgroups);
 
 	if (!bcast_src->num_subgroups)
 		return;
 
-	bcast_src->subgroup_data = malloc(bcast_src->num_subgroups *
-					sizeof(*bcast_src->subgroup_data));
+	bcast_src->subgroup_data = new0(struct bt_bass_subgroup_data,
+					bcast_src->num_subgroups);
 	if (!bcast_src->subgroup_data) {
 		DBG(bass, "Unable to allocate subgroup data");
 		goto err;
 	}
 
-	memset(bcast_src->subgroup_data, 0, sizeof(*bcast_src->subgroup_data));
-
 	for (int i = 0; i < bcast_src->num_subgroups; i++) {
 		struct bt_bass_subgroup_data *data =
 				&bcast_src->subgroup_data[i];
@@ -985,7 +947,7 @@  static void bass_handle_add_src_op(struct bt_bass *bass,
 		if (!data->meta_len)
 			continue;
 
-		data->meta = malloc(data->meta_len);
+		data->meta = malloc0(data->meta_len);
 		if (!data->meta)
 			goto err;
 
@@ -1031,15 +993,16 @@  static void bass_handle_add_src_op(struct bt_bass *bass,
 			bcast_src->subgroup_data[i].bis_sync =
 				bcast_src->subgroup_data[i].pending_bis_sync;
 
-		notify_data = bass_build_notif_from_bcast_src(bcast_src,
-							&notify_data_len);
+		notif = bass_parse_bcast_src(bcast_src);
+		if (!notif)
+			return;
 
 		gatt_db_attribute_notify(bcast_src->attr,
-				(void *)notify_data,
-				notify_data_len,
+				notif->iov_base, notif->iov_len,
 				bt_bass_get_att(bcast_src->bass));
 
-		free(notify_data);
+		free(notif->iov_base);
+		free(notif);
 	}
 
 	return;
@@ -1068,8 +1031,7 @@  static void bass_handle_set_bcast_code_op(struct bt_bass *bass,
 	socklen_t len;
 	struct bt_iso_qos qos;
 	GError *gerr = NULL;
-	uint8_t *notify_data;
-	size_t notify_data_len;
+	struct iovec *notif;
 
 	/* Get Set Broadcast Code command parameters */
 	params = util_iov_pull_mem(iov, sizeof(*params));
@@ -1091,15 +1053,16 @@  static void bass_handle_set_bcast_code_op(struct bt_bass *bass,
 	if (!bass_trigger_big_sync(bcast_src)) {
 		bcast_src->enc = BT_BASS_BIG_ENC_STATE_DEC;
 
-		notify_data = bass_build_notif_from_bcast_src(bcast_src,
-							&notify_data_len);
+		notif = bass_parse_bcast_src(bcast_src);
+		if (!notif)
+			return;
 
 		gatt_db_attribute_notify(bcast_src->attr,
-					(void *)notify_data,
-					notify_data_len,
+					notif->iov_base, notif->iov_len,
 					bt_bass_get_att(bcast_src->bass));
 
-		free(notify_data);
+		free(notif->iov_base);
+		free(notif);
 		return;
 	}
 
@@ -1221,8 +1184,7 @@  static void bass_bcast_recv_state_read(struct gatt_db_attribute *attrib,
 					void *user_data)
 {
 	struct bt_bass_db *bdb = user_data;
-	uint8_t *rsp;
-	size_t rsp_len;
+	struct iovec *rsp;
 	struct bt_bcast_src *bcast_src;
 	struct bt_bass *bass = bass_get_session(att, bdb->db,
 						&bdb->adapter_bdaddr);
@@ -1238,7 +1200,7 @@  static void bass_bcast_recv_state_read(struct gatt_db_attribute *attrib,
 	}
 
 	/* Build read response */
-	rsp = bass_build_read_rsp_from_bcast_src(bcast_src, &rsp_len);
+	rsp = bass_parse_bcast_src(bcast_src);
 
 	if (!rsp) {
 		gatt_db_attribute_read_result(attrib, id,
@@ -1247,9 +1209,10 @@  static void bass_bcast_recv_state_read(struct gatt_db_attribute *attrib,
 		return;
 	}
 
-	gatt_db_attribute_read_result(attrib, id, 0, (void *)rsp,
-						rsp_len);
+	gatt_db_attribute_read_result(attrib, id, 0, rsp->iov_base,
+						rsp->iov_len);
 
+	free(rsp->iov_base);
 	free(rsp);
 }
 
@@ -1348,7 +1311,7 @@  static void read_bcast_recv_state(bool success, uint8_t att_ecode,
 		return;
 	}
 
-	if (bass_build_bcast_src_from_read_rsp(bcast_src, value, length)) {
+	if (bass_build_bcast_src(bcast_src, value, length)) {
 		queue_remove(bcast_src->bass->rdb->bcast_srcs, bcast_src);
 		bass_bcast_src_free(bcast_src);
 		return;
@@ -1367,7 +1330,7 @@  static void bcast_recv_state_notify(struct bt_bass *bass, uint16_t value_handle,
 					bass_src_match_attrib, attr);
 	if (!bcast_src) {
 		new_src = true;
-		bcast_src = malloc(sizeof(*bcast_src));
+		bcast_src = new0(struct bt_bcast_src, 1);
 
 		if (!bcast_src) {
 			DBG(bass, "Failed to allocate "
@@ -1375,12 +1338,11 @@  static void bcast_recv_state_notify(struct bt_bass *bass, uint16_t value_handle,
 			return;
 		}
 
-		memset(bcast_src, 0, sizeof(struct bt_bcast_src));
 		bcast_src->bass = bass;
 		bcast_src->attr = attr;
 	}
 
-	if (bass_build_bcast_src_from_notif(bcast_src, value, length)
+	if (bass_build_bcast_src(bcast_src, value, length)
 							&& new_src) {
 		bass_bcast_src_free(bcast_src);
 		return;
@@ -1474,7 +1436,7 @@  static void foreach_bass_char(struct gatt_db_attribute *attr, void *user_data)
 						bass_src_match_attrib, attr);
 
 		if (!bcast_src) {
-			bcast_src = malloc(sizeof(struct bt_bcast_src));
+			bcast_src = new0(struct bt_bcast_src, 1);
 
 			if (bcast_src == NULL) {
 				DBG(bass, "Failed to allocate "
@@ -1482,7 +1444,6 @@  static void foreach_bass_char(struct gatt_db_attribute *attr, void *user_data)
 				return;
 			}
 
-			memset(bcast_src, 0, sizeof(struct bt_bcast_src));
 			bcast_src->bass = bass;
 			bcast_src->attr = attr;