linux-kernel - [PATCH] drm/amd/display: only warn once in dce110_edp_wait_for_hpd

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 14 Feb 2023 16:12:54 -0500
From:   Hamza Mahfooz <hamza.mahfooz@....com>
To:     <amd-gfx@...ts.freedesktop.org>
CC:     Hamza Mahfooz <hamza.mahfooz@....com>,
        Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Wenjing Liu <wenjing.liu@....com>, Jun Lei <Jun.Lei@....com>,
        Charlene Liu <Charlene.Liu@....com>,
        Alvin Lee <Alvin.Lee2@....com>,
        "Nagulendran, Iswara" <Iswara.Nagulendran@....com>,
        Tony Tascioglu <tony.tascioglu@....com>,
        zhikzhai <zhikai.zhai@....com>,
        Wesley Chalmers <Wesley.Chalmers@....com>,
        "Leung, Martin" <Martin.Leung@....com>,
        Mario Limonciello <mario.limonciello@....com>,
        "Leo (Hanghong) Ma" <hanghong.ma@....com>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] drm/amd/display: only warn once in dce110_edp_wait_for_hpd_ready()

Since, hot plugging eDP displays isn't supported, it is sufficient for
us to warn about the lack of a connected display once. So, use ASSERT()
in dce110_edp_wait_for_hpd_ready() instead of DC_LOG_WARNING().

Signed-off-by: Hamza Mahfooz <hamza.mahfooz@....com>
---
 drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index fb3fd5b7c78b..0d4d3d586166 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -779,10 +779,8 @@ void dce110_edp_wait_for_hpd_ready(
 
 	dal_gpio_destroy_irq(&hpd);
 
-	if (false == edp_hpd_high) {
-		DC_LOG_WARNING(
-				"%s: wait timed out!\n", __func__);
-	}
+	/* ensure that the panel is detected */
+	ASSERT(edp_hpd_high);
 }
 
 void dce110_edp_power_control(
-- 
2.39.1