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

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Ping-Ke Shih <pkshih@xxxxxxxxxxx> writes:

>> -----Original Message-----
>> From: rb <rb0171610@xxxxxxxxx>
>> Sent: Friday, March 17, 2023 6:48 AM
>> To: linux-wireless@xxxxxxxxxxxxxxx
>> 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?

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches



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