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Bluetooth: Don't send unnecessary write_le_enable command

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If the local host features indicate that LE is already in the state that
is desired there's no point in sending the HCI command to try to change
the setting.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2012-02-28 00:57:24 +02:00
parent 816a11d5ce
commit 0b60eba1b2
1 changed files with 3 additions and 2 deletions
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5
net/bluetooth/mgmt.c
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@ -1260,7 +1260,7 @@ static int set_le(struct sock *sk, u16 index, void *data, u16 len)
struct pending_cmd *cmd;
struct hci_dev *hdev;
int err;
u8 val;
u8 val, enabled;
BT_DBG("request for hci%u", index);
@ -1280,8 +1280,9 @@ static int set_le(struct sock *sk, u16 index, void *data, u16 len)
}
val = !!cp->val;
enabled = !!(hdev->host_features[0] & LMP_HOST_LE);
if (!hdev_is_powered(hdev)) {
if (!hdev_is_powered(hdev) || val == enabled) {
bool changed = false;
if (val != test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {