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Re: BUG: brcmfmac: add firmware feature detection for gscan feature breaks 43430a1

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On 17-07-17 22:13, Ian Molton wrote:
> On 17/07/17 20:53, Arend van Spriel wrote:
>>> 2) The firmware is failing when asked to handle the new requiests, and
>>>    is going to la-la land.
>> taken a wrong turn straight into la-la land.
> 
> Doh!
> 
>>> I have version wl0: Aug 29 2016 20:48:16 version 7.45.41.26 (r640327)
>>> FWID 01-4527cfab
>> Not so much newer firmware, but I used a different chip when
>> implementing the multi-scheduled scan patches. I tried some other
>> devices, but not the bcm4343{0,8}. Now as far as I can see over here the
>> brcmfmac43430-sdio.bin is not built with gscan support so it should just
>> return firmware errorcode, ie. -23. So it would be interesting to see
>> what firmware has to say. Can you load the driver with
>> ignore_probe_fail=1 and dump the forensics file in debugfs.
> 
> I don't appear to get anything useful in debugfs. Where should I be looking?

In <debugfs_mountpoint>/brcmfmac/*/forensics, but you have to load the
driver with modules parameter 'ignore_probe_fail=1' to avoid the driver
remove tearing down all debugfs stuff.



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