It's not needed at this point
The following revision refers to this bug: https://chromium.googlesource.com/chromiumos/third_party/kernel/+/55712b836d8cb41d5374bec995041b3256cac881 commit 55712b836d8cb41d5374bec995041b3256cac881 Author: Dominik Behr <dbehr@chromium.org> Date: Mon Sep 12 21:13:08 2016 CHROMIUM: drm/exynos: remove KDS sync We haven't been using it for a while since it was replaced with implicit fence based sync and we will never use it again. BUG= 598126 TEST=build and install kernel 3.8, run webgl aquarium Change-Id: Id627b3b6ae8f2718911da091bb08034dccbdef48 Signed-off-by: Dominik Behr <dbehr@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/384633 Reviewed-by: Haixia Shi <hshi@chromium.org> [modify] https://crrev.com/55712b836d8cb41d5374bec995041b3256cac881/drivers/gpu/drm/exynos/Kconfig [modify] https://crrev.com/55712b836d8cb41d5374bec995041b3256cac881/drivers/gpu/drm/exynos/exynos_drm_gem.c [modify] https://crrev.com/55712b836d8cb41d5374bec995041b3256cac881/drivers/gpu/drm/Kconfig [modify] https://crrev.com/55712b836d8cb41d5374bec995041b3256cac881/drivers/gpu/drm/exynos/exynos_drm_drv.c [modify] https://crrev.com/55712b836d8cb41d5374bec995041b3256cac881/drivers/gpu/drm/exynos/exynos_drm_gem.h [modify] https://crrev.com/55712b836d8cb41d5374bec995041b3256cac881/drivers/gpu/drm/exynos/exynos_drm_plane.c [modify] https://crrev.com/55712b836d8cb41d5374bec995041b3256cac881/drivers/gpu/drm/exynos/exynos_drm_drv.h
Comment 1 by cbiesin...@chromium.org
, Jul 15 2016