[RFC] ath10k: silence firmware file probing warnings

[Kalle Valo]

Michal Kazior <michal.kazior at tieto.com> wrote:
> Firmware files are versioned to prevent older
> driver instances to load unsupported firmware
> blobs. This is reflected with a fallback logic
> which attempts to load several firmware files.
> 
> This however produced a lot of unnecessary
> warnings sometimes confusing users and leading
> them to rename firmware files making things even
> more confusing.
> 
> Hence use request_firmware_direct() which does not
> produce extra warnings. This shouldn't really
> break anything because most modern systems don't
> rely on udev/hotplug helpers to load firmware
> files anymore.
> 
> Signed-off-by: Michal Kazior <michal.kazior at tieto.com>

While testing Erik's usb patches I noticed one problem if the firmware (or
board file) is not found:

[  517.389399] usbcore: registered new interface driver ath10k_usb
[  517.391756] usb 2-1.3: could not fetch firmware files (-2)
[  517.391985] usb 2-1.3: could not probe fw (-2)

Now the user has no way to know what file is exactly missing. I'll try to
improve that in v2.

-- 
https://patchwork.kernel.org/patch/9237095/

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