linux-kernel - Re: On brcm80211 maintenance and support

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Date:   Wed, 11 Oct 2023 13:32:01 +0300
From:   Kalle Valo <kvalo@...nel.org>
To:     Phil Elwell <phil@...pberrypi.com>
Cc:     Neal Gompa <neal@...pa.dev>, Hector Martin <marcan@...can.st>,
        Dmitry Antipov <dmantipov@...dex.ru>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "lvc-project@...uxtesting.org" <lvc-project@...uxtesting.org>,
        Arend van Spriel <aspriel@...il.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        SHA-cyfmac-dev-list@...ineon.com,
        brcm80211-dev-list.pdl@...adcom.com,
        Asahi Linux <asahi@...ts.linux.dev>,
        LKML <linux-kernel@...r.kernel.org>,
        Julian Calaby <julian.calaby@...il.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: On brcm80211 maintenance and support

Phil Elwell <phil@...pberrypi.com> writes:

> This is just a quick note to say that Raspberry Pi obviously has a
> vested interest in the future of the brcmfmac driver. In our
> downstream tree we use the upstream driver largely unmodified - there
> are a handful of patches that tinker around the edges, the largest of
> which is in the area of firmware location and being phased out - no
> patches from Infineon/Cypress, Synaptics or Broadcom.
>
> We're very much WiFi users as opposed to WiFi developers, but if
> there's something useful we can contribute then please speak up and
> I'll see what we can do.

Is it possible to run upstream vanilla kernels on a Raspberry Pi? For
example at least once a month take latest wireless-next[1], install it
to a Raspberry Pi and run some simple wireless tests. If any regressions
are found report that to linux-wireless. Preferably with a bisect log to
easily find the offending commit.

Testing patches before they are applied would be even more helpful,
especially for the risky ones. We have a hard "no regressions" rule so
earlier we catch the regressions the better.

I also wonder should there be a dedicated brcm80211 specific mailing
list? That way people who want to help could easily follow and discuss
brcm80211 development, and no need to follow linux-wireless. For example
we do that with ath12k driver.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git/

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

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