Bluetooth: Report num supported adv instances for hw offloading

Here we make sure we properly report the number of supported
advertising slots when we are using hardware offloading. If no
hardware offloading is available, we default this value to
HCI_MAX_ADV_INSTANCES for use in software rotation as before.

This change has been tested on kukui (no ext adv) and hatch (ext adv)
chromebooks by verifying "SupportedInstances" shows 5 (the default) and
6 (slots supported by controller), respectively.

Signed-off-by: Daniel Winkler <danielwinkler@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index be9cdf5..ef32b12 100644 (file)
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2963,7 +2963,7 @@ int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
                       sizeof(adv_instance->scan_rsp_data));
        } else {
                if (hdev->adv_instance_cnt >= hdev->le_num_of_adv_sets ||
-                   instance < 1 || instance > HCI_MAX_ADV_INSTANCES)
+                   instance < 1 || instance > hdev->le_num_of_adv_sets)
                        return -EOVERFLOW;
 
                adv_instance = kzalloc(sizeof(*adv_instance), GFP_KERNEL);

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index f96251f..e9f4ce2 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -7254,7 +7254,7 @@ static int read_adv_features(struct sock *sk, struct hci_dev *hdev,
        rp->supported_flags = cpu_to_le32(supported_flags);
        rp->max_adv_data_len = HCI_MAX_AD_LENGTH;
        rp->max_scan_rsp_len = HCI_MAX_AD_LENGTH;
-       rp->max_instances = HCI_MAX_ADV_INSTANCES;
+       rp->max_instances = hdev->le_num_of_adv_sets;
        rp->num_instances = hdev->adv_instance_cnt;
 
        instance = rp->instance;
@@ -7450,7 +7450,7 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
                return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
                                       MGMT_STATUS_NOT_SUPPORTED);
 
-       if (cp->instance < 1 || cp->instance > HCI_MAX_ADV_INSTANCES)
+       if (cp->instance < 1 || cp->instance > hdev->le_num_of_adv_sets)
                return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
                                       MGMT_STATUS_INVALID_PARAMS);
 
@@ -7703,7 +7703,7 @@ static int get_adv_size_info(struct sock *sk, struct hci_dev *hdev,
                return mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO,
                                       MGMT_STATUS_REJECTED);
 
-       if (cp->instance < 1 || cp->instance > HCI_MAX_ADV_INSTANCES)
+       if (cp->instance < 1 || cp->instance > hdev->le_num_of_adv_sets)
                return mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO,
                                       MGMT_STATUS_INVALID_PARAMS);