Re: Dual licensing [was: [PATCH 2/5] misc: mlx5ctl: Add mlx5ctl misc driver]

From: Dave Airlie
Date: Fri Oct 20 2023 - 15:35:46 EST


On Fri, 20 Oct 2023 at 07:51, Jonathan Corbet <corbet@xxxxxxx> wrote:
>
> Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> writes:
>
> > For your new files, please make them single license. If you insist on
> > dual licensing them, I will insist on have a lawyer sign off on them so
> > that they understand the issues involved with dual licenses, and just
> > how much I hate them in the kernel tree as they are a pain over time.
>
> Out of curiosity, is there somewhere people can look for a description
> of these issues and the pain they cause? I've seen this go by enough
> times to think that it would be good to set down in Documentation/
> somewhere for future reference.

I'm also very curious, I've never had any issues in 15+ years with the
dual licensed code in the DRM, and continue to prefer it.

Greg if you get new advice that you want to apply to the kernel as a
whole, you probably need to write it up for us to discuss, your
lawyers are not my lawyers etc.

Maybe something for Maintainers summit?

Dave.