linux-kernel - Re: [PATCH v9 6/6] drivers: remoteproc: Add Xilinx r5 remoteproc driver

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Date:   Mon, 26 Sep 2022 15:02:22 -0700
From:   Tanmay Shah <tanmays@....com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>, andersson@...nel.org
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        michal.simek@...inx.com, ben.levinsky@...inx.com,
        tanmay.shah@...inx.com, michal.simek@....com,
        linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v9 6/6] drivers: remoteproc: Add Xilinx r5 remoteproc
 driver


On 9/1/22 1:25 PM, Mathieu Poirier wrote:
> On Thu, Jul 07, 2022 at 06:39:55PM -0700, Tanmay Shah wrote:
[ ... ]
>> --- /dev/null
>> +++ b/drivers/remoteproc/xlnx_r5_remoteproc.c
>> @@ -0,0 +1,1055 @@
>> +// SPDX-License-Identifier: GPL-2.0

Hi Mathieu,

I tried to fix SPDX-License-Identifier to GPL (same as MODULE_LICENSE 
below), However checkpatch.pl reports this as following warning:

"WARNING: 'SPDX-License-Identifier: GPL' is not supported in LICENSES/..."

I see that GPL-1.0 is under LICENSE/deprecated directory.

>> +/*
>> + * ZynqMP R5 Remote Processor driver
>> + *
>> + */
>> +
>> +#include <dt-bindings/power/xlnx-zynqmp-power.h>

[ ... ]

>> +MODULE_DEVICE_TABLE(of, zynqmp_r5_remoteproc_match);
>> +
>> +static struct platform_driver zynqmp_r5_remoteproc_driver = {
>> +	.probe = zynqmp_r5_remoteproc_probe,
>> +	.driver = {
>> +		.name = "zynqmp_r5_remoteproc",
>> +		.of_match_table = zynqmp_r5_remoteproc_match,
>> +	},
>> +};
>> +module_platform_driver(zynqmp_r5_remoteproc_driver);
>> +
>> +MODULE_DESCRIPTION("Xilinx R5F remote processor driver");
>> +MODULE_AUTHOR("Xilinx Inc.");
>> +MODULE_LICENSE("GPL");
> There is a discrepency between the GPL-2.0 in the SPDS identifier and the above.

Also, changing to MODULE_LICENSE("GPL v2") gives following warning:

WARNING: Prefer "GPL" over "GPL v2" - see commit bf7fbeeae6db ("module: 
Cure the MODULE_LICENSE "GPL" vs. "GPL v2" bogosity")
#1115: FILE: drivers/remoteproc/xlnx_r5_remoteproc.c:1034:
+MODULE_LICENSE("GPL v2");

So, It looks like SPDX-License-Identifier should be GPL-2.0-only and 
MODULE_LICENSE should be change to "GPL".

It this ok? Any other suggestions ?

Thanks,

Tanmay

>
> More comments tomorrow or Tuesday.
>
> Thanks,
> Mathieu
>
>> -- 
>> 2.25.1
>>