[PATCH 1/2] drm: execution context for GEM buffers v5

[Boris Brezillon]

On Wed, 21 Jun 2023 15:36:59 +0200
"Christian König" <ckoenig.leichtzumerken at gmail.com> wrote:

> +/**
> + * drm_exec_until_all_locked - loop until all GEM objects are locked
> + * @exec: drm_exec object
> + *
> + * Core functionality of the drm_exec object. Loops until all GEM objects are
> + * locked and no more contention exists. At the beginning of the loop it is
> + * guaranteed that no GEM object is locked.
> + *
> + * Since labels can't be defined local to the loops body we use a jump pointer
> + * to make sure that the retry is only used from within the loops body.
> + */
> +#define drm_exec_until_all_locked(exec)				\
> +	for (void *__drm_exec_retry_ptr; ({			\
> +		__label__ __drm_exec_retry;			\

The warning reported by the bot on 'drm: add drm_exec selftests v4'
should be fixed with a

		goto __drm_exec_retry;

placed here.

> +__drm_exec_retry:						\
> +		__drm_exec_retry_ptr = &&__drm_exec_retry;	\
> +		drm_exec_cleanup(exec);				\
> +	});)