Bluetooth: Factor appending EIR to separate helper

This will also be used for Extended Information Event handling.

Signed-off-by: Michał Narajowski <michal.narajowski@codecoup.pl>
Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 604c481..2b6fe10 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -878,13 +878,32 @@ static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
        return eir_len;
 }
 
+static u16 append_eir_data_to_buf(struct hci_dev *hdev, u8 *eir)
+{
+       u16 eir_len = 0;
+       size_t name_len;
+
+       if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
+               eir_len = eir_append_data(eir, eir_len, EIR_CLASS_OF_DEV,
+                                         hdev->dev_class, 3);
+
+       name_len = strlen(hdev->dev_name);
+       eir_len = eir_append_data(eir, eir_len, EIR_NAME_COMPLETE,
+                                 hdev->dev_name, name_len);
+
+       name_len = strlen(hdev->short_name);
+       eir_len = eir_append_data(eir, eir_len, EIR_NAME_SHORT,
+                                 hdev->short_name, name_len);
+
+       return eir_len;
+}
+
 static int read_ext_controller_info(struct sock *sk, struct hci_dev *hdev,
                                    void *data, u16 data_len)
 {
        char buf[512];
        struct mgmt_rp_read_ext_info *rp = (void *)buf;
-       u16 eir_len = 0;
-       size_t name_len;
+       u16 eir_len;
 
        BT_DBG("sock %p %s", sk, hdev->name);
 
@@ -900,18 +919,8 @@ static int read_ext_controller_info(struct sock *sk, struct hci_dev *hdev,
        rp->supported_settings = cpu_to_le32(get_supported_settings(hdev));
        rp->current_settings = cpu_to_le32(get_current_settings(hdev));
 
-       if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
-               eir_len = eir_append_data(rp->eir, eir_len, EIR_CLASS_OF_DEV,
-                                         hdev->dev_class, 3);
-
-       name_len = strlen(hdev->dev_name);
-       eir_len = eir_append_data(rp->eir, eir_len, EIR_NAME_COMPLETE,
-                                 hdev->dev_name, name_len);
-
-       name_len = strlen(hdev->short_name);
-       eir_len = eir_append_data(rp->eir, eir_len, EIR_NAME_SHORT,
-                                 hdev->short_name, name_len);
 
+       eir_len = append_eir_data_to_buf(hdev, rp->eir);
        rp->eir_len = cpu_to_le16(eir_len);
 
        hci_dev_unlock(hdev);