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| author | Marcel Holtmann <marcel@holtmann.org> | 2013-10-05 22:47:41 +0400 |
|---|---|---|
| committer | Johan Hedberg <johan.hedberg@intel.com> | 2013-10-06 12:21:09 +0400 |
| commit | f822c411b26ce0353c8b97877e53a12e4f895ca1 (patch) | |
| tree | 405b94b086e6035ba573bbde12217dc4eee08d1d /net/bluetooth/a2mp.c | |
| parent | 23b9003b9ae8dac111460597ba683844e9195e4e (diff) | |
| download | linux-f822c411b26ce0353c8b97877e53a12e4f895ca1.tar.xz | |
Bluetooth: Remove useless external function to count controllers
The list of controllers can be counted ahead of time and inline
inside the AMP discover handling. There is no need to export such
a function at all.
In addition just count the AMP controller and only allocated space
for a single mandatory BR/EDR controller. No need to allocate more
space than needed.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth/a2mp.c')
| -rw-r--r-- | net/bluetooth/a2mp.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c index eb0f05e09cd5..a6e45e177b3d 100644 --- a/net/bluetooth/a2mp.c +++ b/net/bluetooth/a2mp.c @@ -129,6 +129,7 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb, struct a2mp_discov_rsp *rsp; u16 ext_feat; u8 num_ctrl; + struct hci_dev *hdev; if (len < sizeof(*req)) return -EINVAL; @@ -152,7 +153,14 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb, read_lock(&hci_dev_list_lock); - num_ctrl = __hci_num_ctrl(); + /* at minimum the BR/EDR needs to be listed */ + num_ctrl = 1; + + list_for_each_entry(hdev, &hci_dev_list, list) { + if (hdev->dev_type == HCI_AMP) + num_ctrl++; + } + len = num_ctrl * sizeof(struct a2mp_cl) + sizeof(*rsp); rsp = kmalloc(len, GFP_ATOMIC); if (!rsp) { |