linux-kernel - Re: [PATCH] Revert "ath: add support for special 0x0 regulatory domain"

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Message-ID: <CAHNKnsTEBr4m1SpZxnfFPWiSgxBg5HhqYCdWwm=9gp7qHXg=Pg@mail.gmail.com>
Date:   Tue, 20 Sep 2022 02:42:27 +0300
From:   Sergey Ryazanov <ryazanov.s.a@...il.com>
To:     Tim Harvey <tharvey@...eworks.com>
Cc:     Brian Norris <briannorris@...omium.org>,
        Cale Collins <ccollins@...eworks.com>, kvalo@...nel.org,
        Patrick Steinhardt <ps@....im>,
        ath10k <ath10k@...ts.infradead.org>,
        linux-wireless <linux-wireless@...r.kernel.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>,
        Stephen McCarthy <stephen.mccarthy@...el.com>
Subject: Re: [PATCH] Revert "ath: add support for special 0x0 regulatory domain"

Hello,

I would like to add my 2c.

On Mon, Sep 19, 2022 at 8:25 PM Tim Harvey <tharvey@...eworks.com> wrote:
> I'm not clear if
> there are many other cards that have this same issue.

The list of cards with unprogrammed regdomain can be extended with
several relatively modern models:
  * MikroTik R11e-5HacD (QCA9882 based)
  * MikroTik R11e-5HacT (QCA9880 based)
  * QNAP QWA-AC2600 (QCA9984 based) [1]

As you can see these are powerful and massive cards for WISPs. Or at
least to run as an AP. I also know a bunch of .11a/b/g/n cards with
zero regdomain and the same target audience. Except maybe for the
legacy Wistorn CM9, which is a relatively compact card.

Also, a huge number of wireless routers and access points have
unprogrammed regdomain. But probably this is not the case, since they
anyway can not run a stock kernel.

1. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1895333

-- 
Sergey