linux-kernel - [PATCH] drm/amd/display: Simplify if conditions

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Date: Tue,  4 Jun 2024 12:37:37 +0200
From: Thorsten Blum <thorsten.blum@...lux.com>
To: harry.wentland@....com,
	sunpeng.li@....com,
	Rodrigo.Siqueira@....com,
	alexander.deucher@....com,
	christian.koenig@....com,
	Xinhui.Pan@....com,
	daniel@...ll.ch
Cc: Qingqing.Zhuo@....com,
	roman.li@....com,
	hersenxs.wu@....com,
	chaitanya.dhere@....com,
	wenjing.liu@....com,
	alex.hung@....com,
	sungkim@....com,
	syed.hassan@....com,
	syedsaaem.rizvi@....com,
	dillon.varone@....com,
	charlene.liu@....com,
	hamza.mahfooz@....com,
	nicholas.kazlauskas@....com,
	jerry.zuo@....com,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Thorsten Blum <thorsten.blum@...lux.com>
Subject: [PATCH] drm/amd/display: Simplify if conditions

The if conditions !A || A && B can be simplified to !A || B.

Fixes the following Coccinelle/coccicheck warnings reported by
excluded_middle.cocci:

	WARNING !A || A && B is equivalent to !A || B
	WARNING !A || A && B is equivalent to !A || B
	WARNING !A || A && B is equivalent to !A || B

Compile-tested only.

Signed-off-by: Thorsten Blum <thorsten.blum@...lux.com>
---
 drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c | 6 +++---
 .../gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c   | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c
index ad2a6b4769fe..940081df6dc0 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c
@@ -68,7 +68,7 @@ static bool get_plane_id(struct dml2_context *dml2, const struct dc_state *state
 		if (state->streams[i]->stream_id == stream_id) {
 			for (j = 0; j < state->stream_status[i].plane_count; j++) {
 				if (state->stream_status[i].plane_states[j] == plane &&
-					(!is_plane_duplicate || (is_plane_duplicate && (j == plane_index)))) {
+					(!is_plane_duplicate || (j == plane_index))) {
 					*plane_id = (i << 16) | j;
 					return true;
 				}
@@ -707,8 +707,8 @@ static void free_unused_pipes_for_plane(struct dml2_context *ctx, struct dc_stat
 	for (i = 0; i < ctx->config.dcn_pipe_count; i++) {
 		if (state->res_ctx.pipe_ctx[i].plane_state == plane &&
 			state->res_ctx.pipe_ctx[i].stream->stream_id == stream_id &&
-			(!is_plane_duplicate || (is_plane_duplicate &&
-			ctx->v20.scratch.dml_to_dc_pipe_mapping.dml_pipe_idx_to_plane_index[state->res_ctx.pipe_ctx[i].pipe_idx] == plane_index)) &&
+			(!is_plane_duplicate ||
+			ctx->v20.scratch.dml_to_dc_pipe_mapping.dml_pipe_idx_to_plane_index[state->res_ctx.pipe_ctx[i].pipe_idx] == plane_index) &&
 			!is_pipe_used(pool, state->res_ctx.pipe_ctx[i].pipe_idx)) {
 			free_pipe(&state->res_ctx.pipe_ctx[i]);
 		}
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
index a41812598ce8..b2bbf7988f92 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
@@ -979,7 +979,7 @@ static bool get_plane_id(struct dml2_context *dml2, const struct dc_state *conte
 		if (context->streams[i]->stream_id == stream_id) {
 			for (j = 0; j < context->stream_status[i].plane_count; j++) {
 				if (context->stream_status[i].plane_states[j] == plane &&
-					(!is_plane_duplicate || (is_plane_duplicate && (j == plane_index)))) {
+					(!is_plane_duplicate || (j == plane_index))) {
 					*plane_id = (i << 16) | j;
 					return true;
 				}
-- 
2.39.2