linux-kernel - Re: [PATCH] wifi: rtw88: rtw8723d: Fix MAC address offset in EEPROM

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Message-ID: <20230908113655.GF637806@pengutronix.de>
Date:   Fri, 8 Sep 2023 13:36:55 +0200
From:   Sascha Hauer <s.hauer@...gutronix.de>
To:     Ping-Ke Shih <pkshih@...ltek.com>
Cc:     "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Kalle Valo <kvalo@...nel.org>, Yanik Fuchs <Yanik.fuchs@....ch>
Subject: Re: [PATCH] wifi: rtw88: rtw8723d: Fix MAC address offset in EEPROM

On Fri, Sep 08, 2023 at 12:23:13AM +0000, Ping-Ke Shih wrote:
> 
> 
> > -----Original Message-----
> > From: Sascha Hauer <s.hauer@...gutronix.de>
> > Sent: Thursday, September 7, 2023 3:16 PM
> > To: linux-wireless@...r.kernel.org
> > Cc: linux-kernel@...r.kernel.org; Kalle Valo <kvalo@...nel.org>; Ping-Ke Shih <pkshih@...ltek.com>; Yanik
> > Fuchs <Yanik.fuchs@....ch>
> > Subject: [PATCH] wifi: rtw88: rtw8723d: Fix MAC address offset in EEPROM
> > 
> > The MAC address is stored at offset 0x107 in the EEPROM, like correctly
> > stated in the comment. Add a two bytes reserved field right before the
> > MAC address to shift it from offset 0x105 to 0x107.
> > 
> > With this the MAC address returned from my RTL8723du wifi stick can be
> > correctly decoded as "Shenzhen Four Seas Global Link Network Technology
> > Co., Ltd."
> 
> With this correctness, my stick can be recognized as: 
> " Bus 003 Device 010: ID 0bda:d723 Realtek Semiconductor Corp. 802.11n WLAN Adapter"

It should be recognized like this also without this patch, but with this
patch the MAC address should be read correctly.

> 
> Should it add a Fixes tag? 
> Fixes: 87caeef032fc ("wifi: rtw88: Add rtw8723du chipset support")

Yes, I forgot this. Kalle, can you add it once again while applying?

Sascha

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