linux-kernel - [PATCH v2] drm/syncobj: Fix sync syncobj issue

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Date:   Thu, 7 Jul 2022 18:29:53 +0800
From:   jie1zhan <jesse.zhang@....com>
To:     <broonie@...nel.org>, <dri-devel-bounces@...ts.freedesktop.org>,
        <dri-devel@...ts.freedesktop.org>
CC:     <Christian.Koenig@....com>, <Vijendar.Mukunda@....com>,
        <Basavaraj.Hiregoudar@....com>, <Sunil-kumar.Dommati@....com>,
        <ajitkumar.pandey@....com>, <lucas.demarchi@...el.com>,
        <nirmoy.das@...ux.intel.com>, <lionel.g.landwerlin@...el.com>,
        jie1zhan <jesse.zhang@....com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        open list <linux-kernel@...r.kernel.org>
Subject: [PATCH v2] drm/syncobj: Fix sync syncobj issue

enable signaling after flatten dma_fence_chains on transfer

Signed-off-by: jie1zhan <jesse.zhang@....com>
---
 drivers/gpu/drm/drm_syncobj.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index 7e48dcd1bee4..0d9d3577325f 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -920,6 +920,7 @@ static int drm_syncobj_transfer_to_timeline(struct drm_file *file_private,
 	if (ret)
 		goto err_free_fence;
 
+	dma_fence_enable_sw_signaling(fence);
 	chain = dma_fence_chain_alloc();
 	if (!chain) {
 		ret = -ENOMEM;
-- 
2.25.1