linux-kernel - Re: [PATCH wireless v2] Revert "wifi: mwifiex: Fix HT40 bandwidth issue."

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Message-ID: <aEoHjudwZKs4YMls@google.com>
Date: Wed, 11 Jun 2025 15:47:42 -0700
From: Brian Norris <briannorris@...omium.org>
To: Francesco Dolcini <francesco@...cini.it>
Cc: Francesco Dolcini <francesco.dolcini@...adex.com>,
	linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
	Jeff Chen <jeff.chen_1@....com>, stable@...r.kernel.org
Subject: Re: [PATCH wireless v2] Revert "wifi: mwifiex: Fix HT40 bandwidth
 issue."

On Thu, Jun 05, 2025 at 03:03:02PM +0200, Francesco Dolcini wrote:
> From: Francesco Dolcini <francesco.dolcini@...adex.com>
> 
> This reverts commit 4fcfcbe457349267fe048524078e8970807c1a5b.
> 
> That commit introduces a regression, when HT40 mode is enabled,
> received packets are lost, this was experience with W8997 with both
> SDIO-UART and SDIO-SDIO variants. From an initial investigation the
> issue solves on its own after some time, but it's not clear what is
> the reason. Given that this was just a performance optimization, let's
> revert it till we have a better understanding of the issue and a proper
> fix.
> 
> Cc: Jeff Chen <jeff.chen_1@....com>
> Cc: stable@...r.kernel.org
> Fixes: 4fcfcbe45734 ("wifi: mwifiex: Fix HT40 bandwidth issue.")
> Closes: https://lore.kernel.org/all/20250603203337.GA109929@francesco-nb/
> Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>

Johannes seems to have applied this already, but FWIW:

Acked-by: Brian Norris <briannorris@...omium.org>