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From:   Ping-Ke Shih <pkshih@realtek.com>
To:     Kalle Valo <kvalo@kernel.org>
CC:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "Larry.Finger@lwfinger.net" <Larry.Finger@lwfinger.net>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: RE: [PATCH v2] wifi: rtw89: 8852b: adjust quota to avoid SER L1 caused by access null page
Thread-Topic: [PATCH v2] wifi: rtw89: 8852b: adjust quota to avoid SER L1
 caused by access null page
Thread-Index: AQHZd/Hz8jfIqQlRsk2YCNNYFfVAca89Cv/9gAAArBA=
Date:   Wed, 26 Apr 2023 05:16:41 +0000
Message-ID: <b1c5e4f89ba843cd958f569547caa8e5@realtek.com>
References: <20230426034737.24870-1-pkshih@realtek.com>
 <87r0s7teik.fsf@kernel.org>
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> -----Original Message-----
> From: Kalle Valo <kvalo@kernel.org>
> Sent: Wednesday, April 26, 2023 1:10 PM
> To: Ping-Ke Shih <pkshih@realtek.com>
> Cc: stable@vger.kernel.org; Larry.Finger@lwfinger.net; linux-wireless@vger.kernel.org
> Subject: Re: [PATCH v2] wifi: rtw89: 8852b: adjust quota to avoid SER L1 caused by access null page
> 
> Ping-Ke Shih <pkshih@realtek.com> writes:
> 
> > Though SER can recover this case, traffic can get stuck for a while. Fix it
> > by adjusting page quota to avoid hardware access null page of CMAC/DMAC.
> >
> > Fixes: a1cb097168fa ("wifi: rtw89: 8852b: configure DLE mem")
> > Fixes: 3e870b481733 ("wifi: rtw89: 8852b: add HFC quota arrays")
> > Cc: stable@vger.kernel.org
> > Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
> > Link: https://github.com/lwfinger/rtw89/issues/226#issuecomment-1520776761
> > Link: https://github.com/lwfinger/rtw89/issues/240
> > Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
> > ---
> > v2: add Fixes, Cc and Tested-by tags suggested by Larry.
> 
> Should this go to wireless tree for v6.4?
> 

Yes, please take it to v6.4. People can get stable connection with this fix.

Thank you
Ping-Ke