[PATCH 00/22] drm: Review of mode copies

[PATCH 00/22] drm: Review of mode copies

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

I might be taking this a bit too far, but the lack of
consistency in our methods to copy drm_display_mode
structs around is bugging me.

The main worry is the embedded list head, which if
clobbered could lead to list corruption. I'd also
prefer to make sure even the valid list heads don't
propagate between copies since that makes no sense.

While going through some of the code I also spotted
some very weird on stack copies being made for no
reason at all. I elimininated a few of them here,
but there could certainly be more lurking in the
shadows.

Cc: Abhinav Kumar <quic_abhinavk@quicinc.com>
Cc: Alain Volmat <alain.volmat@foss.st.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Chen Feng <puck.chen@hisilicon.com>
Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Cc: Emma Anholt <emma@anholt.net>
Cc: freedreno@lists.freedesktop.org
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jyri Sarha <jyri.sarha@iki.fi>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Nikola Cornij <nikola.cornij@amd.com>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Tian Tao <tiantao6@hisilicon.com>
Cc: Tomi Valkeinen <tomba@kernel.org>
Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>

Ville Syrjälä (22):
  drm: Add drm_mode_init()
  drm/amdgpu: Remove pointless on stack mode copies
  drm/amdgpu: Use drm_mode_init() for on-stack modes
  drm/amdgpu: Use drm_mode_copy()
  drm/radeon: Use drm_mode_copy()
  drm/bridge: Use drm_mode_copy()
  drm/gma500: Use drm_mode_copy()
  drm/hisilicon: Use drm_mode_init() for on-stack modes
  drm/imx: Use drm_mode_duplicate()
  drm/msm: Nuke weird on stack mode copy
  drm/msm: Use drm_mode_init() for on-stack modes
  drm/msm: Use drm_mode_copy()
  drm/mtk: Use drm_mode_init() for on-stack modes
  drm/rockchip: Use drm_mode_copy()
  drm/sti: Use drm_mode_copy()
  drm/tilcdc: Use drm_mode_copy()
  drm/vc4: Use drm_mode_copy()
  drm/i915: Use drm_mode_init() for on-stack modes
  drm/i915: Use drm_mode_copy()
  drm/panel: Use drm_mode_duplicate()
  drm: Use drm_mode_init() for on-stack modes
  drm: Use drm_mode_copy()

 .../gpu/drm/amd/amdgpu/amdgpu_connectors.c    |  4 +-
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 41 ++++++++++---------
 drivers/gpu/drm/bridge/nwl-dsi.c              |  2 +-
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     |  2 +-
 drivers/gpu/drm/bridge/tc358767.c             |  2 +-
 drivers/gpu/drm/drm_crtc_helper.c             | 12 +++---
 drivers/gpu/drm/drm_edid.c                    |  8 +++-
 drivers/gpu/drm/drm_modes.c                   | 21 +++++++++-
 drivers/gpu/drm/drm_vblank.c                  |  2 +-
 drivers/gpu/drm/gma500/oaktrail_crtc.c        |  8 +---
 drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c  |  2 +-
 drivers/gpu/drm/i915/display/intel_display.c  | 20 +++++----
 drivers/gpu/drm/imx/imx-ldb.c                 |  3 +-
 drivers/gpu/drm/mediatek/mtk_hdmi.c           |  2 +-
 .../drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c  |  2 +-
 .../drm/msm/disp/dpu1/dpu_encoder_phys_vid.c  |  9 ++--
 drivers/gpu/drm/msm/dp/dp_display.c           |  2 +-
 drivers/gpu/drm/msm/dp/dp_drm.c               | 10 ++---
 drivers/gpu/drm/panel/panel-truly-nt35597.c   |  3 +-
 .../gpu/drm/panel/panel-visionox-rm69299.c    |  4 +-
 drivers/gpu/drm/radeon/radeon_connectors.c    |  4 +-
 drivers/gpu/drm/rockchip/cdn-dp-core.c        |  2 +-
 drivers/gpu/drm/rockchip/inno_hdmi.c          |  2 +-
 drivers/gpu/drm/rockchip/rk3066_hdmi.c        |  2 +-
 drivers/gpu/drm/sti/sti_dvo.c                 |  2 +-
 drivers/gpu/drm/sti/sti_hda.c                 |  2 +-
 drivers/gpu/drm/sti/sti_hdmi.c                |  2 +-
 drivers/gpu/drm/tilcdc/tilcdc_crtc.c          |  2 +-
 drivers/gpu/drm/vc4/vc4_hdmi.c                |  5 +--
 include/drm/drm_modes.h                       |  2 +
 30 files changed, 105 insertions(+), 79 deletions(-)

-- 
2.34.1


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[PATCH 14/22] drm/rockchip: Use drm_mode_copy()

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

struct drm_display_mode embeds a list head, so overwriting
the full struct with another one will corrupt the list
(if the destination mode is on a list). Use drm_mode_copy()
instead which explicitly preserves the list head of
the destination mode.

Even if we know the destination mode is not on any list
using drm_mode_copy() seems decent as it sets a good
example. Bad examples of not using it might eventually
get copied into code where preserving the list head
actually matters.

Obviously one case not covered here is when the mode
itself is embedded in a larger structure and the whole
structure is copied. But if we are careful when copying
into modes embedded in structures I think we can be a
little more reassured that bogus list heads haven't been
propagated in.

@is_mode_copy@
@@
drm_mode_copy(...)
{
...
}

@depends on !is_mode_copy@
struct drm_display_mode *mode;
expression E, S;
@@
(
- *mode = E
+ drm_mode_copy(mode, &E)
|
- memcpy(mode, E, S)
+ drm_mode_copy(mode, E)
)

@depends on !is_mode_copy@
struct drm_display_mode mode;
expression E;
@@
(
- mode = E
+ drm_mode_copy(&mode, &E)
|
- memcpy(&mode, E, S)
+ drm_mode_copy(&mode, E)
)

@@
struct drm_display_mode *mode;
@@
- &*mode
+ mode

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
---
 drivers/gpu/drm/rockchip/cdn-dp-core.c | 2 +-
 drivers/gpu/drm/rockchip/inno_hdmi.c   | 2 +-
 drivers/gpu/drm/rockchip/rk3066_hdmi.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index 4740cc14beb8..adf1027a3f20 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -564,7 +564,7 @@ static void cdn_dp_encoder_mode_set(struct drm_encoder *encoder,
 	video->v_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NVSYNC);
 	video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC);
 
-	memcpy(&dp->mode, adjusted, sizeof(*mode));
+	drm_mode_copy(&dp->mode, adjusted);
 }
 
 static bool cdn_dp_check_link_status(struct cdn_dp_device *dp)
diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
index 046e8ec2a71c..740196d30fba 100644
--- a/drivers/gpu/drm/rockchip/inno_hdmi.c
+++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
@@ -488,7 +488,7 @@ static void inno_hdmi_encoder_mode_set(struct drm_encoder *encoder,
 	inno_hdmi_setup(hdmi, adj_mode);
 
 	/* Store the display mode for plugin/DPMS poweron events */
-	memcpy(&hdmi->previous_mode, adj_mode, sizeof(hdmi->previous_mode));
+	drm_mode_copy(&hdmi->previous_mode, adj_mode);
 }
 
 static void inno_hdmi_encoder_enable(struct drm_encoder *encoder)
diff --git a/drivers/gpu/drm/rockchip/rk3066_hdmi.c b/drivers/gpu/drm/rockchip/rk3066_hdmi.c
index 1c546c3a8998..17e7c40a9e7b 100644
--- a/drivers/gpu/drm/rockchip/rk3066_hdmi.c
+++ b/drivers/gpu/drm/rockchip/rk3066_hdmi.c
@@ -383,7 +383,7 @@ rk3066_hdmi_encoder_mode_set(struct drm_encoder *encoder,
 	struct rk3066_hdmi *hdmi = to_rk3066_hdmi(encoder);
 
 	/* Store the display mode for plugin/DPMS poweron events. */
-	memcpy(&hdmi->previous_mode, adj_mode, sizeof(hdmi->previous_mode));
+	drm_mode_copy(&hdmi->previous_mode, adj_mode);
 }
 
 static void rk3066_hdmi_encoder_enable(struct drm_encoder *encoder)
-- 
2.34.1


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Re: [PATCH 00/22] drm: Review of mode copies

[Ville Syrjälä]

On Fri, Feb 18, 2022 at 12:03:41PM +0200, Ville Syrjala wrote:
>   drm: Add drm_mode_init()
>   drm/bridge: Use drm_mode_copy()
>   drm/imx: Use drm_mode_duplicate()
>   drm/panel: Use drm_mode_duplicate()
>   drm/vc4: Use drm_mode_copy()
These have been pushed to drm-misc-next.

>   drm/amdgpu: Remove pointless on stack mode copies
>   drm/amdgpu: Use drm_mode_init() for on-stack modes
>   drm/amdgpu: Use drm_mode_copy()
amdgpu ones are reviewed, but I'll leave them for the
AMD folks to push to whichever tree they prefer.


The rest are still in need of review:
>   drm/radeon: Use drm_mode_copy()
>   drm/gma500: Use drm_mode_copy()
>   drm/hisilicon: Use drm_mode_init() for on-stack modes
>   drm/msm: Nuke weird on stack mode copy
>   drm/msm: Use drm_mode_init() for on-stack modes
>   drm/msm: Use drm_mode_copy()
>   drm/mtk: Use drm_mode_init() for on-stack modes
>   drm/rockchip: Use drm_mode_copy()
>   drm/sti: Use drm_mode_copy()
>   drm/tilcdc: Use drm_mode_copy()
>   drm/i915: Use drm_mode_init() for on-stack modes
>   drm/i915: Use drm_mode_copy()
>   drm: Use drm_mode_init() for on-stack modes
>   drm: Use drm_mode_copy()

-- 
Ville Syrjälä
Intel

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Re: [PATCH 00/22] drm: Review of mode copies

[Alex Deucher]

On Mon, Mar 14, 2022 at 6:12 PM Ville Syrjälä
<ville.syrjala@linux.intel.com> wrote:
>
> On Fri, Feb 18, 2022 at 12:03:41PM +0200, Ville Syrjala wrote:
> >   drm: Add drm_mode_init()
> >   drm/bridge: Use drm_mode_copy()
> >   drm/imx: Use drm_mode_duplicate()
> >   drm/panel: Use drm_mode_duplicate()
> >   drm/vc4: Use drm_mode_copy()
> These have been pushed to drm-misc-next.
>
> >   drm/amdgpu: Remove pointless on stack mode copies
> >   drm/amdgpu: Use drm_mode_init() for on-stack modes
> >   drm/amdgpu: Use drm_mode_copy()
> amdgpu ones are reviewed, but I'll leave them for the
> AMD folks to push to whichever tree they prefer.

I pulled patches 2, 4, 5 into my tree.  For 3, I'm happy to have it
land via drm-misc with the rest of the mode_init changes if you'd
prefer.

Alex


Alex

>
>
> The rest are still in need of review:
> >   drm/radeon: Use drm_mode_copy()
> >   drm/gma500: Use drm_mode_copy()
> >   drm/hisilicon: Use drm_mode_init() for on-stack modes
> >   drm/msm: Nuke weird on stack mode copy
> >   drm/msm: Use drm_mode_init() for on-stack modes
> >   drm/msm: Use drm_mode_copy()
> >   drm/mtk: Use drm_mode_init() for on-stack modes
> >   drm/rockchip: Use drm_mode_copy()
> >   drm/sti: Use drm_mode_copy()
> >   drm/tilcdc: Use drm_mode_copy()
> >   drm/i915: Use drm_mode_init() for on-stack modes
> >   drm/i915: Use drm_mode_copy()
> >   drm: Use drm_mode_init() for on-stack modes
> >   drm: Use drm_mode_copy()
>
> --
> Ville Syrjälä
> Intel

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Re: [PATCH 00/22] drm: Review of mode copies

[Ville Syrjälä]

On Tue, Mar 15, 2022 at 02:52:38PM -0400, Alex Deucher wrote:
> On Mon, Mar 14, 2022 at 6:12 PM Ville Syrjälä
> <ville.syrjala@linux.intel.com> wrote:
> >
> > On Fri, Feb 18, 2022 at 12:03:41PM +0200, Ville Syrjala wrote:
> > >   drm: Add drm_mode_init()
> > >   drm/bridge: Use drm_mode_copy()
> > >   drm/imx: Use drm_mode_duplicate()
> > >   drm/panel: Use drm_mode_duplicate()
> > >   drm/vc4: Use drm_mode_copy()
> > These have been pushed to drm-misc-next.
> >
> > >   drm/amdgpu: Remove pointless on stack mode copies
> > >   drm/amdgpu: Use drm_mode_init() for on-stack modes
> > >   drm/amdgpu: Use drm_mode_copy()
> > amdgpu ones are reviewed, but I'll leave them for the
> > AMD folks to push to whichever tree they prefer.
> 
> I pulled patches 2, 4, 5 into my tree.

Thanks.

> For 3, I'm happy to have it
> land via drm-misc with the rest of the mode_init changes if you'd
> prefer.

Either way works for me. I don't yet have reviews yet for
the other drivers, so I'll proably hold off for a bit more
at least. And the i915 patch I'll be merging via drm-intel.

> > >   drm/radeon: Use drm_mode_copy()
> > >   drm/gma500: Use drm_mode_copy()
> > >   drm/tilcdc: Use drm_mode_copy()
> > >   drm/i915: Use drm_mode_copy()

Those are now all in.

Which leaves us with these stragglers:
> > >   drm/hisilicon: Use drm_mode_init() for on-stack modes
> > >   drm/msm: Nuke weird on stack mode copy
> > >   drm/msm: Use drm_mode_init() for on-stack modes
> > >   drm/msm: Use drm_mode_copy()
> > >   drm/mtk: Use drm_mode_init() for on-stack modes
> > >   drm/rockchip: Use drm_mode_copy()
> > >   drm/sti: Use drm_mode_copy()
> > >   drm: Use drm_mode_init() for on-stack modes
> > >   drm: Use drm_mode_copy()

-- 
Ville Syrjälä
Intel

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Re: [PATCH 00/22] drm: Review of mode copies

[Dmitry Baryshkov]

On 22/03/2022 01:37, Ville Syrjälä wrote:
> On Tue, Mar 15, 2022 at 02:52:38PM -0400, Alex Deucher wrote:
>> On Mon, Mar 14, 2022 at 6:12 PM Ville Syrjälä
>> <ville.syrjala@linux.intel.com> wrote:
>>>
>>> On Fri, Feb 18, 2022 at 12:03:41PM +0200, Ville Syrjala wrote:
>>>>    drm: Add drm_mode_init()
>>>>    drm/bridge: Use drm_mode_copy()
>>>>    drm/imx: Use drm_mode_duplicate()
>>>>    drm/panel: Use drm_mode_duplicate()
>>>>    drm/vc4: Use drm_mode_copy()
>>> These have been pushed to drm-misc-next.
>>>
>>>>    drm/amdgpu: Remove pointless on stack mode copies
>>>>    drm/amdgpu: Use drm_mode_init() for on-stack modes
>>>>    drm/amdgpu: Use drm_mode_copy()
>>> amdgpu ones are reviewed, but I'll leave them for the
>>> AMD folks to push to whichever tree they prefer.
>>
>> I pulled patches 2, 4, 5 into my tree.
> 
> Thanks.
> 
>> For 3, I'm happy to have it
>> land via drm-misc with the rest of the mode_init changes if you'd
>> prefer.
> 
> Either way works for me. I don't yet have reviews yet for
> the other drivers, so I'll proably hold off for a bit more
> at least. And the i915 patch I'll be merging via drm-intel.
> 
>>>>    drm/radeon: Use drm_mode_copy()
>>>>    drm/gma500: Use drm_mode_copy()
>>>>    drm/tilcdc: Use drm_mode_copy()
>>>>    drm/i915: Use drm_mode_copy()
> 
> Those are now all in.
> 
> Which leaves us with these stragglers:
>>>>    drm/hisilicon: Use drm_mode_init() for on-stack modes

>>>>    drm/msm: Nuke weird on stack mode copy
>>>>    drm/msm: Use drm_mode_init() for on-stack modes
>>>>    drm/msm: Use drm_mode_copy()

These three patches went beneath my radar for some reason.

I have just sent a replacement for the first patch ([1]). Other two 
patches can be pulled in msm/msm-next (or msm/msm-fixes) during the next 
development cycle if that works for you.

[1] https://patchwork.freedesktop.org/series/101682/

>>>>    drm/mtk: Use drm_mode_init() for on-stack modes
>>>>    drm/rockchip: Use drm_mode_copy()
>>>>    drm/sti: Use drm_mode_copy()
>>>>    drm: Use drm_mode_init() for on-stack modes
>>>>    drm: Use drm_mode_copy()
> 


-- 
With best wishes
Dmitry

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Re: [PATCH 00/22] drm: Review of mode copies

[Ville Syrjälä]

On Wed, Mar 23, 2022 at 01:39:44PM +0300, Dmitry Baryshkov wrote:
> On 22/03/2022 01:37, Ville Syrjälä wrote:
> > On Tue, Mar 15, 2022 at 02:52:38PM -0400, Alex Deucher wrote:
> >> On Mon, Mar 14, 2022 at 6:12 PM Ville Syrjälä
> >> <ville.syrjala@linux.intel.com> wrote:
> >>>
> >>> On Fri, Feb 18, 2022 at 12:03:41PM +0200, Ville Syrjala wrote:
> >>>>    drm: Add drm_mode_init()
> >>>>    drm/bridge: Use drm_mode_copy()
> >>>>    drm/imx: Use drm_mode_duplicate()
> >>>>    drm/panel: Use drm_mode_duplicate()
> >>>>    drm/vc4: Use drm_mode_copy()
> >>> These have been pushed to drm-misc-next.
> >>>
> >>>>    drm/amdgpu: Remove pointless on stack mode copies
> >>>>    drm/amdgpu: Use drm_mode_init() for on-stack modes
> >>>>    drm/amdgpu: Use drm_mode_copy()
> >>> amdgpu ones are reviewed, but I'll leave them for the
> >>> AMD folks to push to whichever tree they prefer.
> >>
> >> I pulled patches 2, 4, 5 into my tree.
> > 
> > Thanks.
> > 
> >> For 3, I'm happy to have it
> >> land via drm-misc with the rest of the mode_init changes if you'd
> >> prefer.
> > 
> > Either way works for me. I don't yet have reviews yet for
> > the other drivers, so I'll proably hold off for a bit more
> > at least. And the i915 patch I'll be merging via drm-intel.
> > 
> >>>>    drm/radeon: Use drm_mode_copy()
> >>>>    drm/gma500: Use drm_mode_copy()
> >>>>    drm/tilcdc: Use drm_mode_copy()
> >>>>    drm/i915: Use drm_mode_copy()
> > 
> > Those are now all in.
> > 
> > Which leaves us with these stragglers:
> >>>>    drm/hisilicon: Use drm_mode_init() for on-stack modes
> 
> >>>>    drm/msm: Nuke weird on stack mode copy
> >>>>    drm/msm: Use drm_mode_init() for on-stack modes
> >>>>    drm/msm: Use drm_mode_copy()
> 
> These three patches went beneath my radar for some reason.
> 
> I have just sent a replacement for the first patch ([1]). Other two 
> patches can be pulled in msm/msm-next (or msm/msm-fixes) during the next 
> development cycle if that works for you.

That'll do fine for me. Thanks.

> 
> [1] https://patchwork.freedesktop.org/series/101682/
> 
> >>>>    drm/mtk: Use drm_mode_init() for on-stack modes
> >>>>    drm/rockchip: Use drm_mode_copy()
> >>>>    drm/sti: Use drm_mode_copy()
> >>>>    drm: Use drm_mode_init() for on-stack modes
> >>>>    drm: Use drm_mode_copy()
> > 
> 
> 
> -- 
> With best wishes
> Dmitry

-- 
Ville Syrjälä
Intel

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Re: [PATCH 00/22] drm: Review of mode copies

[Abhinav Kumar]

On 3/23/2022 3:39 AM, Dmitry Baryshkov wrote:
> On 22/03/2022 01:37, Ville Syrjälä wrote:
>> On Tue, Mar 15, 2022 at 02:52:38PM -0400, Alex Deucher wrote:
>>> On Mon, Mar 14, 2022 at 6:12 PM Ville Syrjälä
>>> <ville.syrjala@linux.intel.com> wrote:
>>>>
>>>> On Fri, Feb 18, 2022 at 12:03:41PM +0200, Ville Syrjala wrote:
>>>>>    drm: Add drm_mode_init()
>>>>>    drm/bridge: Use drm_mode_copy()
>>>>>    drm/imx: Use drm_mode_duplicate()
>>>>>    drm/panel: Use drm_mode_duplicate()
>>>>>    drm/vc4: Use drm_mode_copy()
>>>> These have been pushed to drm-misc-next.
>>>>
>>>>>    drm/amdgpu: Remove pointless on stack mode copies
>>>>>    drm/amdgpu: Use drm_mode_init() for on-stack modes
>>>>>    drm/amdgpu: Use drm_mode_copy()
>>>> amdgpu ones are reviewed, but I'll leave them for the
>>>> AMD folks to push to whichever tree they prefer.
>>>
>>> I pulled patches 2, 4, 5 into my tree.
>>
>> Thanks.
>>
>>> For 3, I'm happy to have it
>>> land via drm-misc with the rest of the mode_init changes if you'd
>>> prefer.
>>
>> Either way works for me. I don't yet have reviews yet for
>> the other drivers, so I'll proably hold off for a bit more
>> at least. And the i915 patch I'll be merging via drm-intel.
>>
>>>>>    drm/radeon: Use drm_mode_copy()
>>>>>    drm/gma500: Use drm_mode_copy()
>>>>>    drm/tilcdc: Use drm_mode_copy()
>>>>>    drm/i915: Use drm_mode_copy()
>>
>> Those are now all in.
>>
>> Which leaves us with these stragglers:
>>>>>    drm/hisilicon: Use drm_mode_init() for on-stack modes
> 
>>>>>    drm/msm: Nuke weird on stack mode copy
>>>>>    drm/msm: Use drm_mode_init() for on-stack modes
>>>>>    drm/msm: Use drm_mode_copy()
> 
> These three patches went beneath my radar for some reason.
> 
> I have just sent a replacement for the first patch ([1]). Other two 
> patches can be pulled in msm/msm-next (or msm/msm-fixes) during the next 
> development cycle if that works for you.
> 
> [1] https://patchwork.freedesktop.org/series/101682/

Agree with this approach.

We can replace the first patch with 
https://patchwork.freedesktop.org/series/101682/.

Thanks

Abhinav

> 
>>>>>    drm/mtk: Use drm_mode_init() for on-stack modes
>>>>>    drm/rockchip: Use drm_mode_copy()
>>>>>    drm/sti: Use drm_mode_copy()
>>>>>    drm: Use drm_mode_init() for on-stack modes
>>>>>    drm: Use drm_mode_copy()
>>
> 
> 

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