linux-kernel - [PATCH] drm/amd/display: remove redundant check

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Date:   Mon, 30 Oct 2023 19:04:07 +0200
From:   José Pekkarinen <jose.pekkarinen@...hound.fi>
To:     harry.wentland@....com, sunpeng.li@....com,
        Rodrigo.Siqueira@....com, skhan@...uxfoundation.org
Cc:     José Pekkarinen <jose.pekkarinen@...hound.fi>,
        alexander.deucher@....com, christian.koenig@....com,
        Xinhui.Pan@....com, airlied@...il.com, daniel@...ll.ch,
        dillon.varone@....com, Jun.Lei@....com, aurabindo.pillai@....com,
        george.shen@....com, samson.tam@....com, SyedSaaem.Rizvi@....com,
        stable@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        linux-kernel-mentees@...ts.linuxfoundation.org
Subject: [PATCH] drm/amd/display: remove redundant check

This patch addresses the following warning spotted by
using coccinelle where the case checked does the same
than the else case.

drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c:4664:8-10: WARNING: possible condition with no effect (if == else)

Fixes: 974ce181 ("drm/amd/display: Add check for PState change in DCN32")

Signed-off-by: José Pekkarinen <jose.pekkarinen@...hound.fi>
---
 .../drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c   | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
index ecea008f19d3..d940dfa5ae43 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
@@ -4661,10 +4661,6 @@ void dml32_CalculateMinAndMaxPrefetchMode(
 	} else if (AllowForPStateChangeOrStutterInVBlankFinal == dm_prefetch_support_uclk_fclk_and_stutter) {
 		*MinPrefetchMode = 0;
 		*MaxPrefetchMode = 0;
-	} else if (AllowForPStateChangeOrStutterInVBlankFinal ==
-			dm_prefetch_support_uclk_fclk_and_stutter_if_possible) {
-		*MinPrefetchMode = 0;
-		*MaxPrefetchMode = 3;
 	} else {
 		*MinPrefetchMode = 0;
 		*MaxPrefetchMode = 3;
-- 
2.39.2