Hi Peter,
> A 0-length ACL continuation-fragment is a valid NULL packet. Remote
> devices can use the FLOW indicator in the ACL packet header to
> flow-control ACL packets without sending a payload.
>
> Track as a device stat instead of logging.
>
> Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
> ---
> include/net/bluetooth/hci.h | 1 +
> net/bluetooth/l2cap_core.c | 8 ++++++++
> 2 files changed, 9 insertions(+), 0 deletions(-)
>
> diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
> index 0c20227..de7ed81 100644
> --- a/include/net/bluetooth/hci.h
> +++ b/include/net/bluetooth/hci.h
> @@ -1142,6 +1142,7 @@ struct hci_ufilter {
>
> /* ---- HCI Ioctl requests structures ---- */
> struct hci_dev_stats {
> + __u32 null_rx; /* # NULL pkts recvd */
> __u32 err_rx;
> __u32 err_tx;
> __u32 cmd_tx;
you can not do it like this. This will break userspace API/ABI.
Regards
Marcel
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