diff mbox series

Bluetooth: log advertisement packet length if it gets corrected

Message ID 20200409111829.9508-1-daniels@umanovskis.se (mailing list archive)
State Accepted
Delegated to: Marcel Holtmann
Headers show
Series Bluetooth: log advertisement packet length if it gets corrected | expand

Commit Message

Daniels Umanovskis April 9, 2020, 11:18 a.m. UTC
From: Daniels Umanovskis <du@axentia.se>

The error could indicate a problem with the Bluetooth device. It
is easier to investigate if the packet's actual length gets logged,
not just the fact that a discrepancy occurred.

Signed-off-by: Daniels Umanovskis <du@axentia.se>
---
 net/bluetooth/hci_event.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Alain Michaud April 9, 2020, 3:10 p.m. UTC | #1
On Thu, Apr 9, 2020 at 7:28 AM <daniels@umanovskis.se> wrote:
>
> From: Daniels Umanovskis <du@axentia.se>
>
> The error could indicate a problem with the Bluetooth device. It
> is easier to investigate if the packet's actual length gets logged,
> not just the fact that a discrepancy occurred.
>
> Signed-off-by: Daniels Umanovskis <du@axentia.se>
> ---
>  net/bluetooth/hci_event.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
> index 0a591be8b0ae..af7fa7ef94ed 100644
> --- a/net/bluetooth/hci_event.c
> +++ b/net/bluetooth/hci_event.c
> @@ -5353,7 +5353,8 @@ static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
>
>         /* Adjust for actual length */
>         if (len != real_len) {
> -               bt_dev_err_ratelimited(hdev, "advertising data len corrected");
> +               bt_dev_err_ratelimited(hdev, "advertising data len corrected %u -> %u",
> +                                      len, real_len);
>                 len = real_len;
>         }
>
> --
> 2.20.1
>

Reviewed-by: Alain Michaud <alainm@chromium.org>
Marcel Holtmann April 9, 2020, 5:59 p.m. UTC | #2
Hi Daniels,

> The error could indicate a problem with the Bluetooth device. It
> is easier to investigate if the packet's actual length gets logged,
> not just the fact that a discrepancy occurred.
> 
> Signed-off-by: Daniels Umanovskis <du@axentia.se>
> ---
> net/bluetooth/hci_event.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel
diff mbox series

Patch

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 0a591be8b0ae..af7fa7ef94ed 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5353,7 +5353,8 @@  static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
 
 	/* Adjust for actual length */
 	if (len != real_len) {
-		bt_dev_err_ratelimited(hdev, "advertising data len corrected");
+		bt_dev_err_ratelimited(hdev, "advertising data len corrected %u -> %u",
+				       len, real_len);
 		len = real_len;
 	}