From: Alex Hung alex.hung@amd.com
[ Upstream commit 8a307777c36e15f38c9f23778babcd368144c7d8 ]
[WHY] wb_enabled field is set to false before it is used, and the following code will never be executed.
[HOW] Setting wb_enable to false after all removal work is completed.
Reviewed-by: Harry Wentland harry.wentland@amd.com Signed-off-by: Alex Hung alex.hung@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c index 556c57c390ff..12b73b0ff19e 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c @@ -514,18 +514,13 @@ bool dc_stream_remove_writeback(struct dc *dc, return false; }
-// stream->writeback_info[dwb_pipe_inst].wb_enabled = false; - for (i = 0; i < stream->num_wb_info; i++) { - /*dynamic update*/ - if (stream->writeback_info[i].wb_enabled && - stream->writeback_info[i].dwb_pipe_inst == dwb_pipe_inst) { - stream->writeback_info[i].wb_enabled = false; - } - } - /* remove writeback info for disabled writeback pipes from stream */ for (i = 0, j = 0; i < stream->num_wb_info; i++) { if (stream->writeback_info[i].wb_enabled) { + + if (stream->writeback_info[i].dwb_pipe_inst == dwb_pipe_inst) + stream->writeback_info[i].wb_enabled = false; + if (j < i) /* trim the array */ stream->writeback_info[j] = stream->writeback_info[i];