linux-kernel - Re: [PATCH v3 2/5] Bluetooth: add quirk for broken address properties

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Date: Tue, 19 Mar 2024 17:26:06 +0100
From: Johan Hovold <johan@...nel.org>
To: Doug Anderson <dianders@...omium.org>
Cc: Johan Hovold <johan+linaro@...nel.org>,
	Marcel Holtmann <marcel@...tmann.org>,
	Luiz Augusto von Dentz <luiz.dentz@...il.com>,
	Bjorn Andersson <andersson@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	cros-qcom-dts-watchers@...omium.org,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Johan Hedberg <johan.hedberg@...il.com>,
	Balakrishna Godavarthi <quic_bgodavar@...cinc.com>,
	Matthias Kaehlcke <mka@...omium.org>,
	Rocky Liao <quic_rjliao@...cinc.com>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v3 2/5] Bluetooth: add quirk for broken address properties

On Tue, Mar 19, 2024 at 09:10:23AM -0700, Doug Anderson wrote:
> On Tue, Mar 19, 2024 at 8:29 AM Johan Hovold <johan+linaro@...nel.org> wrote:

> > +       /* When this quirk is set, the Bluetooth Device Address provided by
> > +        * the 'local-bd-address' fwnode property is incorrectly specified in
> > +        * big-endian order.
> > +        *
> > +        * This quirk can be set before hci_register_dev is called or
> > +        * during the hdev->setup vendor callback.
> > +        */
> > +       HCI_QUIRK_BDADDR_PROPERTY_BROKEN,
> 
> Like with the binding, I feel like
> "HCI_QUIRK_BDADDR_PROPERTY_BACKWARDS" or
> "HCI_QUIRK_BDADDR_PROPERTY_SWAPPED" would be more documenting but I
> don't feel strongly.

So, same reasoning here, this it not some quirk that people should go
around setting without first considering to fix their boot firmware.

Johan