linux-kernel - [PATCH] drm/amd/display: Fix unsigned expression compared with zero

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Date:   Wed,  6 Jul 2022 14:39:51 +0800
From:   Zhongjun Tan <hbut_tan@....com>
To:     harry.wentland@....com, sunpeng.li@....com,
        Rodrigo.Siqueira@....com, alexander.deucher@....com,
        christian.koenig@....com, Xinhui.Pan@....com, airlied@...ux.ie,
        daniel@...ll.ch, bas@...nieuwenhuizen.nl, cai.huoqing@...ux.dev
Cc:     amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        Zhongjun Tan <tanzhongjun@...lpad.com>
Subject: [PATCH] drm/amd/display: Fix unsigned expression compared with zero

From: Zhongjun Tan <tanzhongjun@...lpad.com>

Fix unsigned expression compared with zero

Signed-off-by: Zhongjun Tan <tanzhongjun@...lpad.com>
---
 .../gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c
index 548cdef8a8ad..21e4af38b8c1 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c
@@ -244,8 +244,8 @@ static void handle_det_buf_split(struct display_mode_lib *mode_lib,
 	bool req128_c = false;
 	bool surf_linear = (pipe_src_param->sw_mode == dm_sw_linear);
 	bool surf_vert = (pipe_src_param->source_scan == dm_vert);
-	unsigned int log2_swath_height_l = 0;
-	unsigned int log2_swath_height_c = 0;
+	int log2_swath_height_l = 0;
+	int log2_swath_height_c = 0;
 	unsigned int detile_buf_size_in_bytes = mode_lib->ip.det_buffer_size_kbytes * 1024;
 
 	full_swath_bytes_packed_l = rq_param->misc.rq_l.full_swath_bytes;
-- 
2.29.0