ACK: [SRU][N:linux-bluefield][PATCH 0/1] Revert performance sinking conntrack patch

[Manuel Diewald]

On Wed, Apr 29, 2026 at 03:57:19PM +0200, Alessio Faina wrote:
> BugLink: https://bugs.launchpad.net/bugs/2150645
> 
> SRU Justification:
> 
> [Impact]
> 
> NVIDIA engineers reported a sudden drop in performance after applying
> some conntrack patches. Reverting one of them after a previous one has
> been already reverted by upstream.
> 
> [Fix]
> 
> Revert commit def3e30c59e
> 
> [Test case]
> 
> Compile tested
> Full test will be performed by NVIDIA R&D engineers to confirm the successful
> outcome after patch is reverted.
> 
> [Regression potential]
> 
> The code works in conntrack and with TCP timeouts; it can break some
> TCP flows and offloading structures, leading to broken connections or
> still under-performing network speed.
> 
> Alessio Faina (1):
>   UBUNTU: SAUCE: Revert "netfilter: conntrack: rework offload nf_conn
>     timeout extension logic"
> 
>  include/net/netfilter/nf_conntrack.h |  10 +++
>  net/netfilter/nf_conntrack_core.c    |   6 ++
>  net/netfilter/nf_flow_table_core.c   | 105 +--------------------------
>  3 files changed, 18 insertions(+), 103 deletions(-)
> 
> -- 
> 2.43.0
> 
> 
> -- 
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> kernel-team at lists.ubuntu.com
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Acked-by: Manuel Diewald <manuel.diewald at canonical.com>

-- 
 Manuel
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