From: Johan Hedberg <johan.hedberg@xxxxxxxxx>
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@xxxxxxxxx>
---
net/bluetooth/mgmt.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 27830f4..5373bc1 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -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] & 0x02);
- 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)) {
--
1.7.9.1
--
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