linux-kernel - Re: [PATCH] wifi: rtlwifi: Drastically reduce the attempts to read efuse bytes in case of failures

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Message-ID: <baf6d88e-e753-4aaf-a340-991373d77fa8@gmail.com>
Date: Tue, 29 Oct 2024 18:55:25 +0200
From: Bitterblue Smith <rtl8821cerfe2@...il.com>
To: "Guilherme G. Piccoli" <gpiccoli@...lia.com>,
 Ping-Ke Shih <pkshih@...ltek.com>
Cc: "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
 "kvalo@...nel.org" <kvalo@...nel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "kernel@...ccoli.net" <kernel@...ccoli.net>,
 "kernel-dev@...lia.com" <kernel-dev@...lia.com>,
 "stable@...r.kernel.org" <stable@...r.kernel.org>,
 "syzbot+edd9fe0d3a65b14588d5@...kaller.appspotmail.com"
 <syzbot+edd9fe0d3a65b14588d5@...kaller.appspotmail.com>
Subject: Re: [PATCH] wifi: rtlwifi: Drastically reduce the attempts to read
 efuse bytes in case of failures

On 29/10/2024 15:31, Guilherme G. Piccoli wrote:
> On 29/10/2024 10:20, Bitterblue Smith wrote:
>> On 29/10/2024 02:50, Ping-Ke Shih wrote:
>>>>
>>>> But can you help me on finding a USB adapter that runs this path? If you
>>>> know a commodity model that uses this specific driver, could you point
>>>> me so I can buy one for testing?
>>>>
>>>
>>> I don't know that. Maybe, Bitterblue Smith (Cc'd) can share how/where he got
>>> USB adapters. 
>>>
>>>
>>
>> I got them from Aliexpress. Both listings are gone now, but I still
>> see others:
>>
>> https://www.aliexpress.com/item/1005007655660231.html
>> https://www.aliexpress.com/item/1005007688991958.html
>>
>> Mine was only 6 USD in March 2023. I don't know why this obsolete
>> product got so expensive.
>>
>> For RTL8192DU only modules are available:
>>
>> https://www.aliexpress.com/item/4000191417711.html
>> https://www.aliexpress.com/item/1005007343563100.html
>>
>> Someone gave me this link (I didn't buy):
>> https://www.amazon.com/Netis-Wireless-Raspberry-Windows-RTL8188CUS/dp/B008O2AL0K
>>
>> Note that the Netis WF2120 can have newer chips inside which will
>> not use this driver.
>>
> 
> Thanks a bunch for the info and links, much appreciated! I can try to
> grab one for testing, but let me ask also: would you be willing to test
> that for me, Bitterblue? If so, I can resubmit today with the PCI check.
> 
> If not possible, no worries, I can buy one.
> Cheers,
> 
> 
> Guilherme

I tested your patch. Both my devices can still read the efuse.