1 files changed, 31 insertions, 0 deletions

diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index bb67f4a5479a..402e2cc54044 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -433,6 +433,35 @@ static int auto_accept_delay_set(void *data, u64 val)
         return 0;
 }
 
+static int min_encrypt_key_size_set(void *data, u64 val)
+{
+        struct hci_dev *hdev = data;
+
+        if (val < 1 || val > 16)
+                return -EINVAL;
+
+        hci_dev_lock(hdev);
+        hdev->min_enc_key_size = val;
+        hci_dev_unlock(hdev);
+
+        return 0;
+}
+
+static int min_encrypt_key_size_get(void *data, u64 *val)
+{
+        struct hci_dev *hdev = data;
+
+        hci_dev_lock(hdev);
+        *val = hdev->min_enc_key_size;
+        hci_dev_unlock(hdev);
+
+        return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(min_encrypt_key_size_fops,
+                        min_encrypt_key_size_get,
+                        min_encrypt_key_size_set, "%llu\n");
+
 static int auto_accept_delay_get(void *data, u64 *val)
 {
         struct hci_dev *hdev = data;
@@ -545,6 +574,8 @@ void hci_debugfs_create_bredr(struct hci_dev *hdev)
         if (lmp_ssp_capable(hdev)) {
                 debugfs_create_file("ssp_debug_mode", 0444, hdev->debugfs,
                                     hdev, &ssp_debug_mode_fops);
+                debugfs_create_file("min_encrypt_key_size", 0644, hdev->debugfs,
+                                    hdev, &min_encrypt_key_size_fops);
                 debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs,
                                     hdev, &auto_accept_delay_fops);
         }