Hello, This small series simplifies the implementation of the media_pipeline_start() function (and to a lesser extend, the media_pipeline_stop() function as well) by avoiding unnecessary graph walks. Patch 1/2 adds a small inline helper function to avoid direct access to the media_entity.stream_count field in drivers, making it easier in patch 2/2 to rework the implementation (dropping the stream_count field) without disturbing drivers. Please see patch 2/2 for a detailed explanation of the simplification. Laurent Pinchart (2): media: media-entity: Add media_pad_is_streaming() helper function media: media-entity: Simplify media_pipeline_start() drivers/media/mc/mc-entity.c | 55 ++++++++----------- drivers/media/platform/exynos4-is/common.c | 5 +- drivers/media/platform/exynos4-is/fimc-isp.c | 2 +- drivers/media/platform/exynos4-is/fimc-lite.c | 6 +- drivers/media/platform/rcar-vin/rcar-core.c | 2 +- include/media/media-entity.h | 21 +++++-- 6 files changed, 48 insertions(+), 43 deletions(-) base-commit: 68b9bcc8a534cd11fe55f8bc82f948aae7d81b3c -- Regards, Laurent Pinchart
