Re: [PATCH 2/6] wl1251: Use request_firmware_prefer_user() for loading NVS calibration data

Pavel Machek
2017-01-27T19:47:06Z

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On Fri 2017-01-27 17:23:07, Kalle Valo wrote:
> Pali Rohár <pali.rohar@gmail.com> writes:
>
> > On Friday 27 January 2017 14:26:22 Kalle Valo wrote:
> >> Pali Rohár <pali.rohar@gmail.com> writes:
> >>
> >> > 2) It was already tested that example NVS data can be used for N900 e.g.
> >> > for SSH connection. If real correct data are not available it is better
> >> > to use at least those example (and probably log warning message) so user
> >> > can connect via SSH and start investigating where is problem.
> >>
> >> I disagree. Allowing default calibration data to be used can be
> >> unnoticed by user and left her wondering why wifi works so badly.
> >
> > So there are only two options:
> >
> > 1) Disallow it and so these users will have non-working wifi.
> >
> > 2) Allow those data to be used as fallback mechanism.
> >
> > And personally I'm against 1) because it will break wifi support for
> > *all* Nokia N900 devices right now.
>
> All two of them? :)

Umm. You clearly want a flock of angry penguins at your doorsteps :-).

> But not working is exactly my point, if correct calibration data is not
> available wifi should not work. And it's not only about functionality
> problems, there's also the regulatory aspect.

If you break existing configuration that's called "regression".

> >> > 3) If we do rename *now* we will totally break wifi support on Nokia
> >> > N900.
> >>
> >> Then the distro should fix that when updating the linux-firmware
> >> packages. Can you provide details about the setup, what distro etc?
> >
> > Debian stable, Ubuntu LTSs 14.04, 16.04.
>
> You can run these out of box on N900?

Debian stable does.
Pavel
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