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Commit 820ffdb3 authored by Gustavo Padovan's avatar Gustavo Padovan
Browse files

Bluetooth: Remove struct del_list 



As we use struct list_head to keep L2CAP channels list the workaround with
del_list is not needed anymore.

Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent baa7e1fa

include/net/bluetooth/l2cap.h

+0 −5
Original line number Diff line number Diff line
@@ -309,11 +309,6 @@ struct l2cap_conn { 
	rwlock_t	chan_lock;

};



struct sock_del_list {

	struct sock *sk;

	struct list_head list;

};



#define L2CAP_INFO_CL_MTU_REQ_SENT	0x01

#define L2CAP_INFO_FEAT_MASK_REQ_SENT	0x04

#define L2CAP_INFO_FEAT_MASK_REQ_DONE	0x08

net/bluetooth/l2cap_core.c

+7 −17
Original line number Diff line number Diff line
@@ -487,16 +487,13 @@ void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk, int err) 
/* ---- L2CAP connections ---- */

static void l2cap_conn_start(struct l2cap_conn *conn)

{

	struct sock_del_list del, *tmp1, *tmp2;

	struct l2cap_chan *chan;

	struct l2cap_chan *chan, *tmp;



	BT_DBG("conn %p", conn);



	INIT_LIST_HEAD(&del.list);



	read_lock(&conn->chan_lock);



	list_for_each_entry(chan, &conn->chan_l, list) {

	list_for_each_entry_safe(chan, tmp, &conn->chan_l, list) {

		struct sock *sk = chan->sk;



		bh_lock_sock(sk);
@@ -520,10 +517,11 @@ static void l2cap_conn_start(struct l2cap_conn *conn) 
					conn->feat_mask)

					&& l2cap_pi(sk)->conf_state &

					L2CAP_CONF_STATE2_DEVICE) {

				tmp1 = kzalloc(sizeof(struct sock_del_list),

						GFP_ATOMIC);

				tmp1->sk = sk;

				list_add_tail(&tmp1->list, &del.list);

				/* __l2cap_sock_close() calls list_del(chan)

				 * so release the lock */

				read_unlock_bh(&conn->chan_lock);

				 __l2cap_sock_close(sk, ECONNRESET);

				read_lock_bh(&conn->chan_lock);

				bh_unlock_sock(sk);

				continue;

			}
@@ -579,14 +577,6 @@ static void l2cap_conn_start(struct l2cap_conn *conn) 
	}



	read_unlock(&conn->chan_lock);



	list_for_each_entry_safe(tmp1, tmp2, &del.list, list) {

		bh_lock_sock(tmp1->sk);

		__l2cap_sock_close(tmp1->sk, ECONNRESET);

		bh_unlock_sock(tmp1->sk);

		list_del(&tmp1->list);

		kfree(tmp1);

	}

}



/* Find socket with cid and source bdaddr.