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authorJohan Hedberg <johan.hedberg@intel.com>2013-04-02 13:34:31 +0300
committerJohan Hedberg <johan.hedberg@intel.com>2013-04-04 19:16:04 +0300
commitb6ddb638235d90ed67af9af40e63880fd66a1939 (patch)
treeacb90fd3ac15d2e879a2f1df5a5992b9c3d40afd /net/bluetooth/hci_event.c
parent1687dfc3dcecd7f22f60461b562b9ae3171eb93e (diff)
Bluetooth: Track received events in hdev
This patch adds tracking of received HCI events to the hci_dev struct. This is necessary so that a subsequent patch can implement a function for sending a single command synchronously and returning the resulting command complete parameters in the function return value. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/hci_event.c')
-rw-r--r--net/bluetooth/hci_event.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 7e7fbca5943..ed0efb7255b 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -3699,6 +3699,18 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
struct hci_event_hdr *hdr = (void *) skb->data;
__u8 event = hdr->evt;
+ hci_dev_lock(hdev);
+
+ /* Received events are (currently) only needed when a request is
+ * ongoing so avoid unnecessary memory allocation.
+ */
+ if (hdev->req_status == HCI_REQ_PEND) {
+ kfree_skb(hdev->recv_evt);
+ hdev->recv_evt = skb_clone(skb, GFP_KERNEL);
+ }
+
+ hci_dev_unlock(hdev);
+
skb_pull(skb, HCI_EVENT_HDR_SIZE);
switch (event) {