Re: [Qemu-devel] [PATCH] Mark future contributions to GPLv2-only files as GPLv2+

[Anthony Liguori <anthony@codemonkey.ws>]

On 10/21/2011 09:03 AM, Paolo Bonzini wrote:
> Even for files are licensed GPLv2-only, let's not play catch with
> ourselves, and explicitly declare that future contributions to those
> files will also be available as "any later version".
>
> Signed-off-by: Paolo Bonzini<pbonzini@redhat.com>
> diff --git a/roms/SLOF b/roms/SLOF
> index d1d6b53..b94bde0 160000
> --- a/roms/SLOF
> +++ b/roms/SLOF
> @@ -1 +1 @@
> -Subproject commit d1d6b53b713a2b7c2c25685268fa932d28a4b4c0
> +Subproject commit b94bde008b0d49ec4bfe933e110d0952d032ac28

I think you made a mistake here.

Otherwise I'm a bit concerned about ambiguity here.  Let's say we have to 
backport a fit to stable, we need to pull in this new copyright statement.

But then what if we later discovered we need to pull in a fix from before 10/25. 
  That will appear in the stable tree as a post-10/25 commit but it carries a 
GPLv2 only license.

I think a per-file flag day is really the only sane approach to this.

Regards,

Anthony Liguori

> diff --git a/xen-all.c b/xen-all.c
> index b5e28ab..4d6bf1a 100644
> --- a/xen-all.c
> +++ b/xen-all.c
> @@ -4,6 +4,8 @@
>    * This work is licensed under the terms of the GNU GPL, version 2.  See
>    * the COPYING file in the top-level directory.
>    *
> + * Contributions after 2011-10-25 are licensed under the terms of the
> + * GNU GPL, version 2 or (at your option) any later version.
>    */
>
>   #include<sys/mman.h>
> diff --git a/xen-mapcache.c b/xen-mapcache.c
> index 7bcb86e..f66bc60 100644
> --- a/xen-mapcache.c
> +++ b/xen-mapcache.c
> @@ -4,6 +4,8 @@
>    * This work is licensed under the terms of the GNU GPL, version 2.  See
>    * the COPYING file in the top-level directory.
>    *
> + * Contributions after 2011-10-25 are licensed under the terms of the
> + * GNU GPL, version 2 or (at your option) any later version.
>    */
>
>   #include "config.h"
> diff --git a/xen-stub.c b/xen-stub.c
> index efe2ab5..d713750 100644
> --- a/xen-stub.c
> +++ b/xen-stub.c
> @@ -4,6 +4,8 @@
>    * This work is licensed under the terms of the GNU GPL, version 2.  See
>    * the COPYING file in the top-level directory.
>    *
> + * Contributions after 2011-10-25 are licensed under the terms of the
> + * GNU GPL, version 2 or (at your option) any later version.
>    */
>
>   #include "qemu-common.h"