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From: James Lin <PingLei.Lin@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: Harry Wentland <harry.wentland@amd.com>,
	Leo Li <sunpeng.li@amd.com>,
	Aurabindo Pillai <aurabindo.pillai@amd.com>,
	Roman Li <roman.li@amd.com>, Wayne Lin <wayne.lin@amd.com>,
	Tom Chung <chiahsuan.chung@amd.com>,
	"Fangzhi Zuo" <jerry.zuo@amd.com>,
	Dan Wheeler <daniel.wheeler@amd.com>, Ray Wu <Ray.Wu@amd.com>,
	Ivan Lipski <ivan.lipski@amd.com>, Alex Hung <alex.hung@amd.com>,
	James Lin <PingLei.Lin@amd.com>,
	Chenyu Chen <Chen-Yu.Chen@amd.com>,
	Gaghik Khachatrian <gaghik.khachatrian@amd.com>,
	Aric Cyr <aric.cyr@amd.com>, James Lin <pinglei.lin@amd.com>
Subject: [PATCH 10/20] drm/amd/display: always-true lower-bound assert
Date: Wed, 6 May 2026 12:31:08 +0800	[thread overview]
Message-ID: <20260506043342.2164710-11-PingLei.Lin@amd.com> (raw)
In-Reply-To: <20260506043342.2164710-1-PingLei.Lin@amd.com>

From: Gaghik Khachatrian <gaghik.khachatrian@amd.com>

[Why]
A recent type change made the lower-bound part of the OTG instance
assert redundant, which can trigger static-analysis noise and distract
from actionable diagnostics.

[How]
Kept the meaningful upper-bound range validation required for safe
narrowing to uint8_t. Removed the redundant non-negative portion of the
assert so the check matches current type semantics. Revalidated with the
latest debug build log: no warnings and no build-failure markers.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Gaghik Khachatrian <gaghik.khachatrian@amd.com>
Signed-off-by: James Lin <pinglei.lin@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dml2_0/dml2_utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml2_0/dml2_utils.c b/drivers/gpu/drm/amd/display/dc/dml2_0/dml2_utils.c
index 1bc81e26a11f..5ed14f694fb0 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2_0/dml2_utils.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2_0/dml2_utils.c
@@ -255,7 +255,7 @@ static void populate_pipe_ctx_dlg_params_from_dml(struct pipe_ctx *pipe_ctx, str
 	pipe_ctx->pipe_dlg_param.vupdate_width = dml_get_vupdate_width(mode_lib, pipe_idx);
 	pipe_ctx->pipe_dlg_param.vready_offset = dml_get_vready_offset(mode_lib, pipe_idx);
 
-	ASSERT(pipe_ctx->stream_res.tg->inst >= 0 && pipe_ctx->stream_res.tg->inst <= 0xFF);
+	ASSERT(pipe_ctx->stream_res.tg->inst <= 0xFF);
 	pipe_ctx->pipe_dlg_param.otg_inst = (unsigned char)pipe_ctx->stream_res.tg->inst;
 
 	pipe_ctx->pipe_dlg_param.hactive = hactive;
-- 
2.43.0


  parent reply	other threads:[~2026-05-06  7:04 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-06  4:30 [PATCH 00/20] DC Patches May 11 2026 James Lin
2026-05-06  4:30 ` [PATCH 01/20] drm/amd/display: Fix refresh rate round up case James Lin
2026-05-06  4:31 ` [PATCH 02/20] drm/amd/display: Fix white screen on boot with OLED panel James Lin
2026-05-06  4:31 ` [PATCH 03/20] drm/amd/display: Fix CRC open failure during active rendering James Lin
2026-05-06  4:31 ` [PATCH 04/20] drm/amd/display: Fix signed/unsigned comparison mismatches James Lin
2026-05-06  4:31 ` [PATCH 05/20] drm/amd/display: Fix compiler warnings in dml2 James Lin
2026-05-06  4:31 ` [PATCH 06/20] drm/amd/display: Fix multiple compiler warnings James Lin
2026-05-06  4:31 ` [PATCH 07/20] drm/amd/display: Fix warnings James Lin
2026-05-06  4:31 ` [PATCH 08/20] drm/amd/display: only call pmfw if smu present flags true James Lin
2026-05-06  4:31 ` [PATCH 09/20] drm/amd/display: Refactor dc_link_aux_transfer_raw James Lin
2026-05-06  4:31 ` James Lin [this message]
2026-05-06  4:31 ` [PATCH 11/20] drm/amd/display: Separate ABM functions into dedicated power_abm.c file James Lin
2026-05-06  4:31 ` [PATCH 12/20] drm/amd/display: Add additional IPS entry/exit for PSR/Replay James Lin
2026-05-06  4:31 ` [PATCH 13/20] drm/amd/display: Enable IPS on DCN42 James Lin
2026-05-06  4:31 ` [PATCH 14/20] drm/amd/display: Fix enum decl warnings James Lin
2026-05-06  4:31 ` [PATCH 15/20] drm/amd/display: enable ODM 2:1 on single eDP based on pixel clock James Lin
2026-05-06  4:31 ` [PATCH 16/20] drm/amd/display: Revert "Unify fast update classification paths" James Lin
2026-05-06  4:31 ` [PATCH 17/20] drm/amd/display: Revert "Enable HUBP/OPTC/DPP power gating" James Lin
2026-05-06  4:31 ` [PATCH 18/20] drm/amd/display: Wrap DCN32 phantom-plane allocation in DC_RUN_WITH_PREEMPTION_ENABLED James Lin
2026-05-06  4:31 ` [PATCH 19/20] drm/amd/display: [FW Promotion] Release 0.1.59.0 James Lin
2026-05-06  4:31 ` [PATCH 20/20] drm/amd/display: Promote DC to 3.2.382 James Lin
2026-05-11 13:05 ` [PATCH 00/20] DC Patches May 11 2026 Wheeler, Daniel

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