linux-kernel - Re: [PATCH v2 1/2] drm/bridge: ps8640: Skip redundant bridge enable

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

Message-ID: <CAD=FV=VxKO6y38nDUmppRseC7kP1cJCUEMkbUPMY1d8LzKe4ZA@mail.gmail.com>
Date:   Thu, 23 Mar 2023 13:58:14 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Pin-yen Lin <treapking@...omium.org>
Cc:     Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <rfoss@...nel.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>
Subject: Re: [PATCH v2 1/2] drm/bridge: ps8640: Skip redundant bridge enable

Hi,

On Tue, Mar 14, 2023 at 8:55 PM Pin-yen Lin <treapking@...omium.org> wrote:
>
> Skip the drm_bridge_chain_pre_enable call when the bridge is already
> pre_enabled. This make pre_enable and post_disable (thus
> pm_runtime_get/put) symmetric.
>
> Fixes: 46f206304db0 ("drm/bridge: ps8640: Rework power state handling")
> Signed-off-by: Pin-yen Lin <treapking@...omium.org>
> Reviewed-by: Robert Foss <rfoss@...nel.org>
> Reviewed-by: Douglas Anderson <dianders@...omium.org>
> ---
>
> (no changes since v1)
>
>  drivers/gpu/drm/bridge/parade-ps8640.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Even though this could go in drm-misc-fixes, doing so would cause a
conflict with patch #2 in this series which is not a fix. Since I
don't believe this is massively urgent, I've landed both in
drm-misc-next to avoid needing to involve more senior folks to do
fancy stuff:

845e730eaf36 drm/bridge: ps8640: Skip redundant bridge enable