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Bluetooth: GAP: Dont allow role switch when there is another ACL

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The scatternet scenarios are difficult to be handled in SOC. This
change not to allow role switch during outgoing ACL connections
will avoid scatternet scenarios.

CRs-fixed: 392836
Change-Id: I5769b71879ea951755e115424fb2b5b504e95784
Signed-off-by: Mallikarjuna GB <gbmalli@codeaurora.org>
This commit is contained in:
Mallikarjuna GB
2012-08-22 14:18:26 +05:30
committed by Iliyan Malchev
parent deba57a4a7
commit dd30df71f5
1 changed files with 9 additions and 1 deletions
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10
net/bluetooth/hci_conn.c
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@@ -206,6 +206,13 @@ void hci_le_remove_dev_white_list(struct hci_dev *hdev, bdaddr_t *dst)
}
EXPORT_SYMBOL(hci_le_remove_dev_white_list);
static inline bool is_role_switch_possible(struct hci_dev *hdev)
{
if (hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECTED))
return false;
return true;
}
void hci_acl_connect(struct hci_conn *conn)
{
struct hci_dev *hdev = conn->hdev;
@@ -241,7 +248,8 @@ void hci_acl_connect(struct hci_conn *conn)
}
cp.pkt_type = cpu_to_le16(conn->pkt_type);
if (lmp_rswitch_capable(hdev) && !(hdev->link_mode & HCI_LM_MASTER))
if (lmp_rswitch_capable(hdev) && !(hdev->link_mode & HCI_LM_MASTER)
&& is_role_switch_possible(hdev))
cp.role_switch = 0x01;
else
cp.role_switch = 0x00;