Bluetooth: Move recently-added ERTM header packing functions

Moving these functions simplifies future patches by eliminating
forward declarations, makes future patches easier to review, and
better preserves 'git blame' information.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>

net/bluetooth/l2cap_core.c

@@ -724,87 +724,6 @@ static void l2cap_do_send(struct l2cap_chan *chan, struct sk_buff *skb)
 	hci_send_acl(chan->conn->hchan, skb, flags);
 }
 
-static inline void l2cap_send_sframe(struct l2cap_chan *chan, u32 control)
-{
-	struct sk_buff *skb;
-	struct l2cap_hdr *lh;
-	struct l2cap_conn *conn = chan->conn;
-	int count, hlen;
-
-	if (chan->state != BT_CONNECTED)
-		return;
-
-	if (test_bit(FLAG_EXT_CTRL, &chan->flags))
-		hlen = L2CAP_EXT_HDR_SIZE;
-	else
-		hlen = L2CAP_ENH_HDR_SIZE;
-
-	if (chan->fcs == L2CAP_FCS_CRC16)
-		hlen += L2CAP_FCS_SIZE;
-
-	BT_DBG("chan %p, control 0x%8.8x", chan, control);
-
-	count = min_t(unsigned int, conn->mtu, hlen);
-
-	control |= __set_sframe(chan);
-
-	if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
-		control |= __set_ctrl_final(chan);
-
-	if (test_and_clear_bit(CONN_SEND_PBIT, &chan->conn_state))
-		control |= __set_ctrl_poll(chan);
-
-	skb = bt_skb_alloc(count, GFP_ATOMIC);
-	if (!skb)
-		return;
-
-	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
-	lh->len = cpu_to_le16(hlen - L2CAP_HDR_SIZE);
-	lh->cid = cpu_to_le16(chan->dcid);
-
-	__put_control(chan, control, skb_put(skb, __ctrl_size(chan)));
-
-	if (chan->fcs == L2CAP_FCS_CRC16) {
-		u16 fcs = crc16(0, (u8 *)lh, count - L2CAP_FCS_SIZE);
-		put_unaligned_le16(fcs, skb_put(skb, L2CAP_FCS_SIZE));
-	}
-
-	skb->priority = HCI_PRIO_MAX;
-	l2cap_do_send(chan, skb);
-}
-
-static inline void l2cap_send_rr_or_rnr(struct l2cap_chan *chan, u32 control)
-{
-	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
-		control |= __set_ctrl_super(chan, L2CAP_SUPER_RNR);
-		set_bit(CONN_RNR_SENT, &chan->conn_state);
-	} else
-		control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
-
-	control |= __set_reqseq(chan, chan->buffer_seq);
-
-	l2cap_send_sframe(chan, control);
-}
-
-static u16 __pack_enhanced_control(struct l2cap_ctrl *control)
-{
-	u16 packed;
-
-	packed = control->reqseq << L2CAP_CTRL_REQSEQ_SHIFT;
-	packed |= control->final << L2CAP_CTRL_FINAL_SHIFT;
-
-	if (control->sframe) {
-		packed |= control->poll << L2CAP_CTRL_POLL_SHIFT;
-		packed |= control->super << L2CAP_CTRL_SUPER_SHIFT;
-		packed |= L2CAP_CTRL_FRAME_TYPE;
-	} else {
-		packed |= control->sar << L2CAP_CTRL_SAR_SHIFT;
-		packed |= control->txseq << L2CAP_CTRL_TXSEQ_SHIFT;
-	}
-
-	return packed;
-}
-
 static void __unpack_enhanced_control(u16 enh, struct l2cap_ctrl *control)
 {
 	control->reqseq = (enh & L2CAP_CTRL_REQSEQ) >> L2CAP_CTRL_REQSEQ_SHIFT;
@@ -829,25 +748,6 @@ static void __unpack_enhanced_control(u16 enh, struct l2cap_ctrl *control)
 	}
 }
 
-static u32 __pack_extended_control(struct l2cap_ctrl *control)
-{
-	u32 packed;
-
-	packed = control->reqseq << L2CAP_EXT_CTRL_REQSEQ_SHIFT;
-	packed |= control->final << L2CAP_EXT_CTRL_FINAL_SHIFT;
-
-	if (control->sframe) {
-		packed |= control->poll << L2CAP_EXT_CTRL_POLL_SHIFT;
-		packed |= control->super << L2CAP_EXT_CTRL_SUPER_SHIFT;
-		packed |= L2CAP_EXT_CTRL_FRAME_TYPE;
-	} else {
-		packed |= control->sar << L2CAP_EXT_CTRL_SAR_SHIFT;
-		packed |= control->txseq << L2CAP_EXT_CTRL_TXSEQ_SHIFT;
-	}
-
-	return packed;
-}
-
 static void __unpack_extended_control(u32 ext, struct l2cap_ctrl *control)
 {
 	control->reqseq = (ext & L2CAP_EXT_CTRL_REQSEQ) >> L2CAP_EXT_CTRL_REQSEQ_SHIFT;
@@ -884,6 +784,44 @@ static inline void __unpack_control(struct l2cap_chan *chan,
 	}
 }
 
+static u32 __pack_extended_control(struct l2cap_ctrl *control)
+{
+	u32 packed;
+
+	packed = control->reqseq << L2CAP_EXT_CTRL_REQSEQ_SHIFT;
+	packed |= control->final << L2CAP_EXT_CTRL_FINAL_SHIFT;
+
+	if (control->sframe) {
+		packed |= control->poll << L2CAP_EXT_CTRL_POLL_SHIFT;
+		packed |= control->super << L2CAP_EXT_CTRL_SUPER_SHIFT;
+		packed |= L2CAP_EXT_CTRL_FRAME_TYPE;
+	} else {
+		packed |= control->sar << L2CAP_EXT_CTRL_SAR_SHIFT;
+		packed |= control->txseq << L2CAP_EXT_CTRL_TXSEQ_SHIFT;
+	}
+
+	return packed;
+}
+
+static u16 __pack_enhanced_control(struct l2cap_ctrl *control)
+{
+	u16 packed;
+
+	packed = control->reqseq << L2CAP_CTRL_REQSEQ_SHIFT;
+	packed |= control->final << L2CAP_CTRL_FINAL_SHIFT;
+
+	if (control->sframe) {
+		packed |= control->poll << L2CAP_CTRL_POLL_SHIFT;
+		packed |= control->super << L2CAP_CTRL_SUPER_SHIFT;
+		packed |= L2CAP_CTRL_FRAME_TYPE;
+	} else {
+		packed |= control->sar << L2CAP_CTRL_SAR_SHIFT;
+		packed |= control->txseq << L2CAP_CTRL_TXSEQ_SHIFT;
+	}
+
+	return packed;
+}
+
 static inline void __pack_control(struct l2cap_chan *chan,
 				  struct l2cap_ctrl *control,
 				  struct sk_buff *skb)
@@ -897,6 +835,68 @@ static inline void __pack_control(struct l2cap_chan *chan,
 	}
 }
 
+static inline void l2cap_send_sframe(struct l2cap_chan *chan, u32 control)
+{
+	struct sk_buff *skb;
+	struct l2cap_hdr *lh;
+	struct l2cap_conn *conn = chan->conn;
+	int count, hlen;
+
+	if (chan->state != BT_CONNECTED)
+		return;
+
+	if (test_bit(FLAG_EXT_CTRL, &chan->flags))
+		hlen = L2CAP_EXT_HDR_SIZE;
+	else
+		hlen = L2CAP_ENH_HDR_SIZE;
+
+	if (chan->fcs == L2CAP_FCS_CRC16)
+		hlen += L2CAP_FCS_SIZE;
+
+	BT_DBG("chan %p, control 0x%8.8x", chan, control);
+
+	count = min_t(unsigned int, conn->mtu, hlen);
+
+	control |= __set_sframe(chan);
+
+	if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
+		control |= __set_ctrl_final(chan);
+
+	if (test_and_clear_bit(CONN_SEND_PBIT, &chan->conn_state))
+		control |= __set_ctrl_poll(chan);
+
+	skb = bt_skb_alloc(count, GFP_ATOMIC);
+	if (!skb)
+		return;
+
+	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+	lh->len = cpu_to_le16(hlen - L2CAP_HDR_SIZE);
+	lh->cid = cpu_to_le16(chan->dcid);
+
+	__put_control(chan, control, skb_put(skb, __ctrl_size(chan)));
+
+	if (chan->fcs == L2CAP_FCS_CRC16) {
+		u16 fcs = crc16(0, (u8 *)lh, count - L2CAP_FCS_SIZE);
+		put_unaligned_le16(fcs, skb_put(skb, L2CAP_FCS_SIZE));
+	}
+
+	skb->priority = HCI_PRIO_MAX;
+	l2cap_do_send(chan, skb);
+}
+
+static inline void l2cap_send_rr_or_rnr(struct l2cap_chan *chan, u32 control)
+{
+	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+		control |= __set_ctrl_super(chan, L2CAP_SUPER_RNR);
+		set_bit(CONN_RNR_SENT, &chan->conn_state);
+	} else
+		control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
+
+	control |= __set_reqseq(chan, chan->buffer_seq);
+
+	l2cap_send_sframe(chan, control);
+}
+
 static inline int __l2cap_no_conn_pending(struct l2cap_chan *chan)
 {
 	return !test_bit(CONF_CONNECT_PEND, &chan->conf_state);