linux-kernel - [PATCH 0/2] drm: Revert dma-fence annotations from omapdrm and tidss

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]

Message-Id: <20230920-dma-fence-annotation-revert-v1-0-7ebf6f7f5bf6@ideasonboard.com>
Date:   Wed, 20 Sep 2023 15:57:15 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To:     Daniel Vetter <daniel@...ll.ch>
Cc:     Jyri Sarha <jyri.sarha@....fi>, David Airlie <airlied@...il.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Francesco Dolcini <francesco@...cini.it>,
        Aradhya Bhatia <a-bhatia1@...com>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Subject: [PATCH 0/2] drm: Revert dma-fence annotations from omapdrm and
 tidss

Both omapdrm and tidss give quite similar lockdep warnings ever since
the "Annotate dma-fence critical section in commit path" patches.

I've tried to look at this, but I haven't gotten far with understanding
all this, and I feel that I'd need to really dive deep into the details
to understand all the locking dependencies relevant here.

With some git-log digging, I noticed this:

https://patchwork.freedesktop.org/patch/462170/

So maybe the "fix" is just to revert the patches. If yes, great, we can
apply the patches here. If not, not so great, and I'll just have to
start the diving =).

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
---
Tomi Valkeinen (2):
      Revert "drm/tidss: Annotate dma-fence critical section in commit path"
      Revert "drm/omapdrm: Annotate dma-fence critical section in commit path"

 drivers/gpu/drm/omapdrm/omap_drv.c | 9 ++++-----
 drivers/gpu/drm/tidss/tidss_kms.c  | 4 ----
 2 files changed, 4 insertions(+), 9 deletions(-)
---
base-commit: 9fc75c40faa29df14ba16066be6bdfaea9f39ce4
change-id: 20230920-dma-fence-annotation-revert-166d0efab368

Best regards,
-- 
Tomi Valkeinen <tomi.valkeinen@...asonboard.com>