Re: [PATCH 1/2 v2] drm/doc: Allow new UAPI to be used once it's in drm-next/drm-misc-next.

From: Daniel Vetter
Date: Thu Apr 25 2019 - 02:33:33 EST


On Wed, Apr 24, 2019 at 03:06:38PM -0700, Eric Anholt wrote:
> I was trying to figure out if it was permissible to merge the Mesa
> side of V3D's CSD support yet while it's in drm-misc-next but not
> drm-next, and developers on #dri-devel IRC had differing opinions of
> what the requirement was.
>
> v2: Restrict to just drm-next or drm-misc-next on airlied's request.

Personally I think that's a bit too strict (if people want to screw up,
they will be able to anyway). But since I'm all for clearer rules where
possible, this has my support too.

Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>

>
> Signed-off-by: Eric Anholt <eric@xxxxxxxxxx>
> ---
> Documentation/gpu/drm-uapi.rst | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/gpu/drm-uapi.rst b/Documentation/gpu/drm-uapi.rst
> index c9fd23efd957..b7a96dc02d21 100644
> --- a/Documentation/gpu/drm-uapi.rst
> +++ b/Documentation/gpu/drm-uapi.rst
> @@ -92,9 +92,9 @@ leads to a few additional requirements:
> requirements by doing a quick fork.
>
> - The kernel patch can only be merged after all the above requirements are met,
> - but it **must** be merged **before** the userspace patches land. uAPI always flows
> - from the kernel, doing things the other way round risks divergence of the uAPI
> - definitions and header files.
> + but it **must** be merged to either drm-next or drm-misc-next **before** the
> + userspace patches land. uAPI always flows from the kernel, doing things the
> + other way round risks divergence of the uAPI definitions and header files.
>
> These are fairly steep requirements, but have grown out from years of shared
> pain and experience with uAPI added hastily, and almost always regretted about
> --
> 2.20.1
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch