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Date: Fri, 17 Nov 2017 12:58:47 -0200
From: Mauro Carvalho Chehab <mchehab@s-opensource.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hans Verkuil <hverkuil@xs4all.nl>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Johan Hovold <johan@kernel.org>,
        Davidlohr Bueso <dave@stgolabs.net>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
        Philippe Ombredanne <pombredanne@nexb.com>
Subject: Re: [PATCH] media: usbvision: remove unneeded DRIVER_LICENSE
 #define
Message-ID: <20171117125847.28004106@vento.lan>
In-Reply-To: <20171117141826.GC17880@kroah.com>
References: <20171117141826.GC17880@kroah.com>
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Em Fri, 17 Nov 2017 15:18:26 +0100
Greg Kroah-Hartman <gregkh@linuxfoundation.org> escreveu:

> There is no need to #define the license of the driver, just put it in
> the MODULE_LICENSE() line directly as a text string.
> 
> This allows tools that check that the module license matches the source
> code license to work properly, as there is no need to unwind the
> unneeded dereference.
> 
> Cc: Hans Verkuil <hverkuil@xs4all.nl>
> Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
> Cc: Johan Hovold <johan@kernel.org>
> Cc: Davidlohr Bueso <dave@stgolabs.net>
> Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
> Reported-by: Philippe Ombredanne <pombredanne@nexb.com>
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> ---
>  drivers/media/usb/usbvision/usbvision-video.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/media/usb/usbvision/usbvision-video.c b/drivers/media/usb/usbvision/usbvision-video.c
> index 960272d3c924..0f5954a1fea2 100644
> --- a/drivers/media/usb/usbvision/usbvision-video.c
> +++ b/drivers/media/usb/usbvision/usbvision-video.c
> @@ -72,7 +72,6 @@
>  #define DRIVER_NAME "usbvision"
>  #define DRIVER_ALIAS "USBVision"
>  #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
> -#define DRIVER_LICENSE "GPL"
>  #define USBVISION_VERSION_STRING "0.9.11"
>  
>  #define	ENABLE_HEXDUMP	0	/* Enable if you need it */
> @@ -141,7 +140,7 @@ MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX).  Default: -1
>  /* Misc stuff */
>  MODULE_AUTHOR(DRIVER_AUTHOR);
>  MODULE_DESCRIPTION(DRIVER_DESC);
> -MODULE_LICENSE(DRIVER_LICENSE);
> +MODULE_LICENSE("GPL");

Makes sense to me, but, if we look at the header of this file:

 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.

Its license is actually GPL 2.0+

So, I would actually change it to:

MODULE_LICENSE("GPL v2");

Regard

Thanks,
Mauro