[PATCH 2/2] Bluetooth: ISO: exclude RFU bits from ISO_SDU_Length

[Pauli Virtanen]

slen contains ISO_SDU_Length (12 bits), RFU (2 bits),
Packet_Status_Flags (2 bits).

Exclude the RFU bits from hci_iso_data_len. Also add masks to the pack
macro.

Fixes: 4de0fc599eb9 ("Bluetooth: Add definitions for CIS connections")
Signed-off-by: Pauli Virtanen <pav@xxxxxx>
---
 include/net/bluetooth/hci.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 38186a245f14..50f0eef71fb1 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -3413,8 +3413,9 @@ static inline struct hci_iso_hdr *hci_iso_hdr(const struct sk_buff *skb)
 #define hci_iso_flags_pack(pb, ts)	((pb & 0x03) | ((ts & 0x01) << 2))
 
 /* ISO data length and flags pack/unpack */
-#define hci_iso_data_len_pack(h, f)	((__u16) ((h) | ((f) << 14)))
-#define hci_iso_data_len(h)		((h) & 0x3fff)
+#define hci_iso_data_len_pack(h, f)	((__u16) (((h) & 0x0fff) | \
+						  (((f) & 0x3) << 14)))
+#define hci_iso_data_len(h)		((h) & 0x0fff)
 #define hci_iso_data_flags(h)		((h) >> 14)
 
 /* codec transport types */
-- 
2.54.0