mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-13 14:14:37 +00:00
Code Issues Releases Wiki Activity

Bluetooth: Remove unnecessary hdev locking in smp.c

Browse source 
Now that the SMP related key lists are converted to RCU there is nothing
in smp_cmd_sign_info() or smp_cmd_ident_addr_info() that would require
taking the hdev lock (including the smp_distribute_keys call). This
patch removes this unnecessary locking.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2014-11-13 14:37:49 +02:00 committed by Marcel Holtmann
parent adae20cb2d
commit d88b5bbf1a
1 changed files with 0 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
net/bluetooth/smp.c
View file

@ -1374,8 +1374,6 @@ static int smp_cmd_ident_addr_info(struct l2cap_conn *conn,
skb_pull(skb, sizeof(*info));
hci_dev_lock(hcon->hdev);
/* Strictly speaking the Core Specification (4.1) allows sending
* an empty address which would force us to rely on just the IRK
* as "identity information". However, since such
@ -1403,8 +1401,6 @@ static int smp_cmd_ident_addr_info(struct l2cap_conn *conn,
if (!(smp->remote_key_dist & KEY_DIST_MASK))
smp_distribute_keys(smp);
hci_dev_unlock(hcon->hdev);
return 0;
}
@ -1413,7 +1409,6 @@ static int smp_cmd_sign_info(struct l2cap_conn *conn, struct sk_buff *skb)
struct smp_cmd_sign_info *rp = (void *) skb->data;
struct l2cap_chan *chan = conn->smp;
struct smp_chan *smp = chan->data;
struct hci_dev *hdev = conn->hcon->hdev;
struct smp_csrk *csrk;
BT_DBG("conn %p", conn);
@ -1426,7 +1421,6 @@ static int smp_cmd_sign_info(struct l2cap_conn *conn, struct sk_buff *skb)
skb_pull(skb, sizeof(*rp));
hci_dev_lock(hdev);
csrk = kzalloc(sizeof(*csrk), GFP_KERNEL);
if (csrk) {
csrk->master = 0x01;
@ -1434,7 +1428,6 @@ static int smp_cmd_sign_info(struct l2cap_conn *conn, struct sk_buff *skb)
}
smp->csrk = csrk;
smp_distribute_keys(smp);
hci_dev_unlock(hdev);
return 0;
}