| 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
| ||
|
Message-ID: <20241117233250.GK12409@pendragon.ideasonboard.com>
Date: Mon, 18 Nov 2024 01:32:50 +0200
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Jani Nikula <jani.nikula@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Tvrtko Ursulin <tursulin@...ulin.net>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
Karol Herbst <kherbst@...hat.com>, Lyude Paul <lyude@...hat.com>,
Danilo Krummrich <dakr@...hat.com>,
Harry Wentland <harry.wentland@....com>,
Leo Li <sunpeng.li@....com>,
Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
Alex Deucher <alexander.deucher@....com>,
Christian König <christian.koenig@....com>,
Xinhui Pan <Xinhui.Pan@....com>,
Alain Volmat <alain.volmat@...s.st.com>,
Raphael Gallais-Pou <rgallaispou@...il.com>,
Liviu Dudau <liviu.dudau@....com>,
Andrzej Hajda <andrzej.hajda@...el.com>,
Neil Armstrong <neil.armstrong@...aro.org>,
Robert Foss <rfoss@...nel.org>, Jonas Karlman <jonas@...boo.se>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Peter Senna Tschudin <peter.senna@...il.com>,
Ian Ray <ian.ray@...com>,
Martyn Welch <martyn.welch@...labora.co.uk>,
Inki Dae <inki.dae@...sung.com>,
Seung-Woo Kim <sw0312.kim@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Alim Akhtar <alim.akhtar@...sung.com>,
Stefan Agner <stefan@...er.ch>, Alison Wang <alison.wang@....com>,
Patrik Jakobsson <patrik.r.jakobsson@...il.com>,
Philipp Zabel <p.zabel@...gutronix.de>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>, Rob Clark <robdclark@...il.com>,
Abhinav Kumar <quic_abhinavk@...cinc.com>,
Sean Paul <sean@...rly.run>,
Marijn Suijten <marijn.suijten@...ainline.org>,
Dave Airlie <airlied@...hat.com>, Gerd Hoffmann <kraxel@...hat.com>,
Sandy Huang <hjc@...k-chips.com>,
Heiko Stübner <heiko@...ech.de>,
Andy Yan <andy.yan@...k-chips.com>, Chen-Yu Tsai <wens@...e.org>,
Samuel Holland <samuel@...lland.org>,
Thierry Reding <thierry.reding@...il.com>,
Mikko Perttunen <mperttunen@...dia.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Dave Stevenson <dave.stevenson@...pberrypi.com>,
Maíra Canal <mcanal@...lia.com>,
Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>,
Gurchetan Singh <gurchetansingh@...omium.org>,
Chia-I Wu <olvaffe@...il.com>, Zack Rusin <zack.rusin@...adcom.com>,
Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
intel-gfx@...ts.freedesktop.org, intel-xe@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
nouveau@...ts.freedesktop.org, amd-gfx@...ts.freedesktop.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, imx@...ts.linux.dev,
linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org,
virtualization@...ts.linux.dev, spice-devel@...ts.freedesktop.org,
linux-rockchip@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
linux-tegra@...r.kernel.org
Subject: Re: [PATCH 1/5] drm/encoder_slave: make mode_valid accept const
struct drm_display_mode
On Mon, Nov 18, 2024 at 01:22:12AM +0200, Dmitry Baryshkov wrote:
> On Sun, 17 Nov 2024 at 22:54, Laurent Pinchart wrote:
> > On Fri, Nov 15, 2024 at 11:09:26PM +0200, Dmitry Baryshkov wrote:
> > > The mode_valid() callbacks of drm_encoder, drm_crtc and drm_bridge
> > > accept const struct drm_display_mode argument. Change the mode_valid
> > > callback of drm_encoder_slave to also accept const argument.
> > >
> > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> >
> > Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
> >
> > On a side note, there's only two I2C slave encoder drivers left... I
> > wonder if we could so something about them. The ch7006 and sil164
> > drivers seem to be used by nouveau only, could they be moved to
> > drivers/gpu/drm/nouveau/ ? We would move the whole drm_encoder_slave
> > implementation there too, and leave it to die (or get taken out of limbo
> > and fixed) with dispnv04.
>
> Or it might be better to switch to drm_bridge. Currently we also have
> sil164 (sub)drivers in ast and i915 drivers. I don't know if there is
> any common code to share or not. If there is some, it might be nice to
> use common framework.
That would require porting nouveau and i915 to drm_bridge. As much as
I'd love to see that happening, I won't hold my breath.
> > > ---
> > > drivers/gpu/drm/i2c/ch7006_drv.c | 2 +-
> > > drivers/gpu/drm/i2c/sil164_drv.c | 2 +-
> > > drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 2 +-
> > > include/drm/drm_encoder_slave.h | 2 +-
> > > 4 files changed, 4 insertions(+), 4 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/i2c/ch7006_drv.c b/drivers/gpu/drm/i2c/ch7006_drv.c
> > > index 131512a5f3bd996ad1e2eb869ffa09837daba0c7..a57f0a41c1a9e2006142fe0bad2914b0c344c82a 100644
> > > --- a/drivers/gpu/drm/i2c/ch7006_drv.c
> > > +++ b/drivers/gpu/drm/i2c/ch7006_drv.c
> > > @@ -104,7 +104,7 @@ static bool ch7006_encoder_mode_fixup(struct drm_encoder *encoder,
> > > }
> > >
> > > static int ch7006_encoder_mode_valid(struct drm_encoder *encoder,
> > > - struct drm_display_mode *mode)
> > > + const struct drm_display_mode *mode)
> > > {
> > > if (ch7006_lookup_mode(encoder, mode))
> > > return MODE_OK;
> > > diff --git a/drivers/gpu/drm/i2c/sil164_drv.c b/drivers/gpu/drm/i2c/sil164_drv.c
> > > index ff23422727fce290a188e495d343e32bc2c373ec..708e119072fcb50c31b5596b75dc341429b93697 100644
> > > --- a/drivers/gpu/drm/i2c/sil164_drv.c
> > > +++ b/drivers/gpu/drm/i2c/sil164_drv.c
> > > @@ -255,7 +255,7 @@ sil164_encoder_restore(struct drm_encoder *encoder)
> > >
> > > static int
> > > sil164_encoder_mode_valid(struct drm_encoder *encoder,
> > > - struct drm_display_mode *mode)
> > > + const struct drm_display_mode *mode)
> > > {
> > > struct sil164_priv *priv = to_sil164_priv(encoder);
> > >
> > > diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
> > > index 3ecb101d23e949b753b873d24eec01ad6fe7f5d6..35ad4e10d27323c87704a3ff35b7dc26462c82bd 100644
> > > --- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
> > > +++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
> > > @@ -308,7 +308,7 @@ static int nv17_tv_get_modes(struct drm_encoder *encoder,
> > > }
> > >
> > > static int nv17_tv_mode_valid(struct drm_encoder *encoder,
> > > - struct drm_display_mode *mode)
> > > + const struct drm_display_mode *mode)
> > > {
> > > struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
> > >
> > > diff --git a/include/drm/drm_encoder_slave.h b/include/drm/drm_encoder_slave.h
> > > index 49172166a164474f43e4afb2eeeb3cde8ae7c61a..b526643833dcf78bae29f9fbbe27de3f730b55d8 100644
> > > --- a/include/drm/drm_encoder_slave.h
> > > +++ b/include/drm/drm_encoder_slave.h
> > > @@ -85,7 +85,7 @@ struct drm_encoder_slave_funcs {
> > > * @mode_valid: Analogous to &drm_encoder_helper_funcs @mode_valid.
> > > */
> > > int (*mode_valid)(struct drm_encoder *encoder,
> > > - struct drm_display_mode *mode);
> > > + const struct drm_display_mode *mode);
> > > /**
> > > * @mode_set: Analogous to &drm_encoder_helper_funcs @mode_set
> > > * callback. Wrapped by drm_i2c_encoder_mode_set().
> > >
--
Regards,
Laurent Pinchart
Powered by blists - more mailing lists