linux-kernel - Re: [PATCH v2] dt-bindings: PCI: altera: Convert to YAML

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Date: Tue, 9 Apr 2024 08:29:07 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: matthew.gerlach@...ux.intel.com
Cc: bhelgaas@...gle.com, lpieralisi@...nel.org, kw@...ux.com,
 robh@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dt-bindings: PCI: altera: Convert to YAML

On 08/04/2024 22:34, matthew.gerlach@...ux.intel.com wrote:
>>> diff --git a/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml b/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml
>>> new file mode 100644
>>> index 000000000000..999dcda05f55
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml
>>> @@ -0,0 +1,106 @@
>>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>>> +# Copyright (C) 2024, Intel Corporation
>>
>> This is derivative of previous work, which is easily visible by doing
>> the same mistakes in DTS as they were before.
> 
> This is definitely derivative of previous work, and I want to fix the 
> DTS mistakes too.
> 
>>
>> You now added fresh copyrights ignoring all previous work, even though
>> you copied it. I don't agree.
>>
>> If you want to ignore previous copyrights, then at least don't copy
>> existing code... although even that would not be sufficient.
> 
> Ignoring previous copyrights was not my intent. There is no copyright 
> statement in the original text version of the device tree bindings. Should 
> that lack of copyright statement carry forward?

All the authors are copyright holders automatically, at least in some or
maybe most jurisdictions. You do not need to add copyright label for
material to be copyrighted. That's why you are not allowed to relicense
the work for example, without other authors' agreement.

The problem is that GPL requires to keep original copyright notices, but
such notices were not present.

Best regards,
Krzysztof