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Re: wifi breakage due to commit "wifi: brcmfmac: add support for vendor-specific firmware api"

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On March 14, 2023 8:39:05 PM Michael Stapelberg <michael+lkml@xxxxxxxxxxxxx> wrote:

Hey Arend

I recently bisected a user-reported WiFi breakage on the Raspberry Pi
3B+ to your commit
https://github.com/torvalds/linux/commit/d6a5c562214f26e442c8ec3ff1e28e16675d1bcf
https://lore.kernel.org/r/20221129135446.151065-4-arend.vanspriel@xxxxxxxxxxxx

On our end, the issue was reported here:
https://github.com/gokrazy/wifi/issues/3

As of Linux 6.2.6, this seems to still be unfixed, so I wanted to
check in and see if you could take a look please?

I have a suspicion, but can you provide the kernel .config file so I can see if I am on the right track.

+ brcmfmac: brcmf_fwvid_request_module: mod=wcc: failed -2
+ ieee80211 phy0: brcmf_attach: brcmf_fwvid_attach failed
+ brcmfmac: brcmf_sdio_firmware_callback: brcmf_attach failed

Regards,
Arend


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