linux-kernel - [PATCH 6.1 resend] Revert "drm/amd/display: Skip Recompute DSC Params if no Stream on Link"

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>] [day] [month] [year] [list]

Message-Id: <20241108104224.504424-1-pchelkin@ispras.ru>
Date: Fri,  8 Nov 2024 13:42:24 +0300
From: Fedor Pchelkin <pchelkin@...ras.ru>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org
Cc: Fedor Pchelkin <pchelkin@...ras.ru>,
	Sasha Levin <sashal@...nel.org>,
	Alex Deucher <alexander.deucher@....com>,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	lvc-project@...uxtesting.org,
	Alexey Khoroshilov <khoroshilov@...ras.ru>,
	Jonathan Gray <jsg@....id.au>
Subject: [PATCH 6.1 resend] Revert "drm/amd/display: Skip Recompute DSC Params if no Stream on Link"

This reverts commit 7c887efda1201110211fed8921a92a713e0b6bcd which is
commit 8151a6c13111b465dbabe07c19f572f7cbd16fef upstream.

It is a duplicate of the change made in 6.1.105 by commit 282f0a482ee6
("drm/amd/display: Skip Recompute DSC Params if no Stream on Link").

This is a consequence of two different upstream commits performing the
exact same change and one of which has been cherry-picked. No point to
keep it in the stable branch.

Found by Linux Verification Center (linuxtesting.org) with Svace static
analysis tool.

Reported-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
Signed-off-by: Fedor Pchelkin <pchelkin@...ras.ru>
---
Dropped from other stables by Jonathan Gray
https://lore.kernel.org/stable/20241007035711.46624-1-jsg@jsg.id.au/T/#u

 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 1acef5f3838f..855cd71f636f 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -1255,9 +1255,6 @@ static bool is_dsc_need_re_compute(
 		}
 	}
 
-	if (new_stream_on_link_num == 0)
-		return false;
-
 	if (new_stream_on_link_num == 0)
 		return false;
 
-- 
2.39.5