linux-kernel - Re: [PATCH 0/6] soc: qcom: pmic_glink_altmode: fix drm bridge use-after-free

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Message-ID: <b5401b19-09d9-4907-86d6-9aab9dc2970e@linaro.org>
Date: Fri, 23 Feb 2024 15:55:12 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Johan Hovold <johan@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 Maxime Ripard <mripard@...nel.org>, David Airlie <airlied@...il.com>,
 Daniel Vetter <daniel@...ll.ch>
Cc: Bjorn Andersson <andersson@...nel.org>,
 Andrzej Hajda <andrzej.hajda@...el.com>, Robert Foss <rfoss@...nel.org>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Vinod Koul <vkoul@...nel.org>, Johan Hovold <johan+linaro@...nel.org>,
 Jonas Karlman <jonas@...boo.se>,
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
 Jernej Skrabec <jernej.skrabec@...il.com>,
 Konrad Dybcio <konrad.dybcio@...aro.org>,
 Kishon Vijay Abraham I <kishon@...nel.org>,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
 Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>,
 Kuogee Hsieh <quic_khsieh@...cinc.com>, freedreno@...ts.freedesktop.org,
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org
Subject: Re: [PATCH 0/6] soc: qcom: pmic_glink_altmode: fix drm bridge
 use-after-free

On 23/02/2024 15:52, Johan Hovold wrote:
> On Fri, Feb 23, 2024 at 03:38:13PM +0100, Neil Armstrong wrote:
>> On 23/02/2024 15:21, Johan Hovold wrote:
> 
>>> But it is *not* standalone as I tried to explain above.
>>>
>>> So you have to drop it again as the later patches depend on it and
>>> cannot be merged (through a different tree) without it.
>>
>> drm-misc branches cannot be rebased, it must be reverted, but it can still be applied
>> on drm-misc-next and I'll send a revert patch for drm-misc-fixes if needed, not a big deal.
>>
>>> I thought you had all the acks you needed to take this through drm-misc,
>>> but we can wait a bit more if necessary (and there's no rush to get the
>>> first one in).
>>
>> If you want it to be in v6.9, it's too late since the last drm-misc-next PR has been sent
>> yesterday (https://cgit.freedesktop.org/drm/drm-misc/tag/?h=drm-misc-next-2024-02-22)
>>
>> Please ping Thomas or Maxime, perhaps it's not too late since the drm-misc-next tree
>> really closes on sunday.
> 
> I don't want this in 6.9, this is needed for *6.8* as this fixes a DRM
> regression in 6.8-rc1 that breaks the display on machines like the X13s.
> 
> If you guys can't sort this out in time, then perhaps Bjorn can take
> this through the Qualcomm tree instead (with DRM acks).
> 
> But again, this is fixing a severe *regression* in 6.8-rc1. It can not
> wait for 6.9.

Right, I can't apply them right now, I send a patchset ack so it can be applied ASAP,

Thanks,
Neil

> 
> Johan