According to Documentation/core-api/printk-formats.rst, Use the correct print format. Printing an unsigned int value should use %u instead of %d. Otherwise printk() might end up displaying negative numbers. Signed-off-by: Kai Ye <yekai13@xxxxxxxxxx> --- net/bluetooth/sco.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 3bd4156..d9a4e88 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -310,7 +310,7 @@ static void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb) if (!sk) goto drop; - BT_DBG("sk %p len %d", sk, skb->len); + BT_DBG("sk %p len %u", sk, skb->len); if (sk->sk_state != BT_CONNECTED) goto drop; @@ -905,7 +905,7 @@ static int sco_sock_getsockopt_old(struct socket *sock, int optname, opts.mtu = sco_pi(sk)->conn->mtu; - BT_DBG("mtu %d", opts.mtu); + BT_DBG("mtu %u", opts.mtu); len = min_t(unsigned int, len, sizeof(opts)); if (copy_to_user(optval, (char *)&opts, len)) @@ -1167,7 +1167,7 @@ static void sco_connect_cfm(struct hci_conn *hcon, __u8 status) if (hcon->type != SCO_LINK && hcon->type != ESCO_LINK) return; - BT_DBG("hcon %p bdaddr %pMR status %d", hcon, &hcon->dst, status); + BT_DBG("hcon %p bdaddr %pMR status %u", hcon, &hcon->dst, status); if (!status) { struct sco_conn *conn; @@ -1196,7 +1196,7 @@ void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) if (!conn) goto drop; - BT_DBG("conn %p len %d", conn, skb->len); + BT_DBG("conn %p len %u", conn, skb->len); if (skb->len) { sco_recv_frame(conn, skb); -- 2.8.1