-----Original Message----- From: amd-gfx amd-gfx-bounces@lists.freedesktop.org On Behalf Of Wayne Lin Sent: 2019/December/01, Sunday 10:59 PM To: dri-devel@lists.freedesktop.org; amd-gfx@lists.freedesktop.org Cc: Zuo, Jerry Jerry.Zuo@amd.com; Wentland, Harry Harry.Wentland@amd.com; Kazlauskas, Nicholas Nicholas.Kazlauskas@amd.com; Lin, Wayne Wayne.Lin@amd.com Subject: [PATCH] drm/dp_mst: Correct the bug in drm_dp_update_payload_part1()
[Why] If the payload_state is DP_PAYLOAD_DELETE_LOCAL in series, current code doesn't delete the payload at current index and just move the index to next one after shuffling payloads.
[How] After shuffling payloads, decide whether to move on index or not according to payload_state of current payload.
Signed-off-by: Wayne Lin Wayne.Lin@amd.com
Reviewed-by: Zhan Liu zhan.liu@amd.com
drivers/gpu/drm/drm_dp_mst_topology.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 81e92b260d7a..8da5d461ea01 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3176,7 +3176,8 @@ int drm_dp_update_payload_part1(struct drm_dp_mst_topology_mgr *mgr) drm_dp_mst_topology_put_port(port); }
- for (i = 0; i < mgr->max_payloads; i++) {
- for (i = 0; i < mgr->max_payloads;
(mgr->payloads[i].payload_state ==DP_PAYLOAD_DELETE_LOCAL) ? i : +i++) { if (mgr->payloads[i].payload_state != DP_PAYLOAD_DELETE_LOCAL) continue;
-- 2.17.1
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