linux-kernel - Re: [PATCH wireless v2 1/2] wifi: mac80211: Update skb's control block key in ieee80211_tx

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Message-ID: <2dc343bab463c629754ad69245e5fe2955a58cf1.camel@sipsolutions.net>
Date: Fri, 11 Apr 2025 16:16:43 +0200
From: Johannes Berg <johannes@...solutions.net>
To: Bert Karwatzki <spasswolf@....de>, Remi Pommarel <repk@...plefau.lt>
Cc: linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH wireless v2 1/2] wifi: mac80211: Update skb's control
 block key in ieee80211_tx_dequeue()

On Thu, 2025-04-10 at 23:55 +0200, Bert Karwatzki wrote:
> This commit breaks the mediatek mt7921 wireless driver. In linux-next-20250410
> my mt7921e Wi-Fi controller is no longer able to connect to a network.
> I bisected this to commit a104042e2bf6 ("wifi: mac80211: Update skb's control
> block key in ieee80211_tx_dequeue()").
> 

Thanks for the report.

Remi, I see you've been debugging it already - thanks!

Nonetheless I need to get a couple of fixes out, so I've reverted it for
now. We have a couple of weeks to fix it even for this release, and the
bug has been around for years, as far as we know.

johannes