Re: Patch "idpf: enable WB_ON_ITR" has been added to the 6.11-stable tree

[Alexander Lobakin <aleksander.lobakin@intel.com>]

From: Sasha Levin <sashal@kernel.org>
Date: Mon, 30 Sep 2024 19:08:34 -0400

> This is a note to let you know that I've just added the patch titled
> 
>     idpf: enable WB_ON_ITR
> 
> to the 6.11-stable tree which can be found at:
>     http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
> 
> The filename of the patch is:
>      idpf-enable-wb_on_itr.patch
> and it can be found in the queue-6.11 subdirectory.
> 
> If you, or anyone else, feels it should not be added to the stable tree,
> please let <stable@vger.kernel.org> know about it.

Hi,

This commit should not be applied standalone and requires relatively big
prerequisites from the series it was sent in, so I'd suggest just
dropping it from stable.

> 
> 
> 
> commit 31ffcb4f7329c601cd6e065d80e4485a468e9980
> Author: Joshua Hay <joshua.a.hay@intel.com>
> Date:   Wed Sep 4 17:47:48 2024 +0200
> 
>     idpf: enable WB_ON_ITR
>     
>     [ Upstream commit 9c4a27da0ecc4080dfcd63903dd94f01ba1399dd ]
>     
>     Tell hardware to write back completed descriptors even when interrupts
>     are disabled. Otherwise, descriptors might not be written back until
>     the hardware can flush a full cacheline of descriptors. This can cause
>     unnecessary delays when traffic is light (or even trigger Tx queue
>     timeout).

Thanks,
Olek