Re: New binary rtw8852b_fw.bin not loading firmware not recognized

Kalle Valo
2023-03-17T05:13:00Z

Ping-Ke Shih <pkshih@realtek.com> writes:

>> -----Original Message-----
>> From: rb <rb0171610@gmail.com>
>> Sent: Friday, March 17, 2023 6:48 AM
>> To: linux-wireless@vger.kernel.org
>> Subject: New binary rtw8852b_fw.bin not loading firmware not recognized
>>
>> Briefly,
>>
>> I use rtw89_8852be in kernel driver
>>
>> HARDWARE:
>> Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b852]
>>
>> Lenovo Ideapad 1i
>>
>> ISSUE:
>> Newest version of binary firmware 2023_03_10,
>> rtw89/rtw8852b_fw.bin, will not load/firmware not recognized on Linux Kernel 6.2.5 (and others):
>>
>> [] loading firmare: rwt89/rtw8852b_fw.bin
>> [] rtw89_8852be 0000:03:00.0: no suitable firmware found
>> [] rtw89_8852be 0000:03:00.0: failed to recognize firmware
>>
>> Issue persists regardless of which 6.2 series kernel is used.
>>
>> All previous rwt89/rtw8852b_fw.bin firmware from linux-firmware 2023_02_10 and earlier loads and works
>> correctly.
>>
>> I did file a bug report with the details:
>>
>> https://bugzilla.kernel.org/show_bug.cgi?id=217207
>>
>
> The firmware format is changed, and wireless-next tree or upcoming 6.3 will
> support it. I will also post this information on the bug.

We cannot break user space like that, linux-firmware needs to be
backwards compatible. In other words, anything you submit to
linux-firmware needs to work with old kernels. Should this new firmware
be reverted from linux-firmware?

What about changes in the rtw89 driver? Do they still work with old
firmware?

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