Re: [PATCH v3 0/4] improve NBL memory safety and mailbox reliability

[Stephen Hemminger <stephen@networkplumber.org>]

On Mon, 26 Jan 2026 18:52:16 -0800
Dimon Zhao <dimon.zhao@nebula-matrix.com> wrote:

> Includes fixes for mbuf/memzone leaks and mailbox state handling.
> 
> Dimon Zhao (4):
>   net/nbl: fix memzone leak on queue release
>   net/nbl: fix mbuf headroom usage in packet Tx
>   net/nbl: fix mbuf double-free in queue cleanup
>   net/nbl: improve mailbox exception handling
> 
>  drivers/net/nbl/nbl_dev/nbl_dev.c     |   2 +-
>  drivers/net/nbl/nbl_hw/nbl_channel.c  |  94 +++++++++++++++++----
>  drivers/net/nbl/nbl_hw/nbl_channel.h  |  11 ++-
>  drivers/net/nbl/nbl_hw/nbl_resource.h |   2 +
>  drivers/net/nbl/nbl_hw/nbl_txrx.c     | 117 +++++++++++++++++++-------
>  drivers/net/nbl/nbl_hw/nbl_txrx_ops.h |   2 +-
>  6 files changed, 175 insertions(+), 53 deletions(-)
> 

Queued to next-net with minor rewording of the commit message in patch 4.

Improve mailbox reliability by replacing the simple 'acked' flag with
a state machine for tracking message status.

Key changes:
1. Replace simple 'acked' flag with a state machine...