Patch "drm/amd/display: Rework context change check" has been added to the 6.1-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    drm/amd/display: Rework context change check

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-amd-display-rework-context-change-check.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 4a51f0b34a3f301fcecc041a7c308bc9c8f8c226
Author: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
Date:   Tue Oct 18 08:28:16 2022 -0400

    drm/amd/display: Rework context change check
    
    [ Upstream commit 10fdb0a11c555e0d6f7698d2874581d06e99ee71 ]
    
    Context change is all about streams; for this reason, this commit
    renames context_changed to streams_changed. Additionally, to make this
    function more flexible, this commit changes the function signature to
    receive the stream array and the stream count as a parameter.
    
    Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
    Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
    Co-developed-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
    Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
    Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
    Stable-dep-of: 59de751e3845 ("drm/amd/display: add ODM case when looking for first split pipe")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index beb2d7f103c58..226c17e78d3e1 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1505,19 +1505,19 @@ static void program_timing_sync(
 	}
 }
 
-static bool context_changed(
-		struct dc *dc,
-		struct dc_state *context)
+static bool streams_changed(struct dc *dc,
+			    struct dc_stream_state *streams[],
+			    uint8_t stream_count)
 {
 	uint8_t i;
 
-	if (context->stream_count != dc->current_state->stream_count)
+	if (stream_count != dc->current_state->stream_count)
 		return true;
 
 	for (i = 0; i < dc->current_state->stream_count; i++) {
-		if (dc->current_state->streams[i] != context->streams[i])
+		if (dc->current_state->streams[i] != streams[i])
 			return true;
-		if (!context->streams[i]->link->link_state_valid)
+		if (!streams[i]->link->link_state_valid)
 			return true;
 	}
 
@@ -1918,7 +1918,7 @@ bool dc_commit_state(struct dc *dc, struct dc_state *context)
 	enum dc_status result = DC_ERROR_UNEXPECTED;
 	int i;
 
-	if (!context_changed(dc, context))
+	if (!streams_changed(dc, context->streams, context->stream_count))
 		return DC_OK;
 
 	DC_LOG_DC("%s: %d streams\n",