From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Lyude Paul <lyude@redhat.com>
Cc: "Thomas Weißschuh" <thomas.weissschuh@linutronix.de>,
linux-kernel@vger.kernel.org,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Danilo Krummrich" <dakr@kernel.org>,
"Alexander Lobakin" <aleksander.lobakin@intel.com>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Jonathan Cameron" <Jonathan.Cameron@huawei.com>,
"Liam Girdwood" <lgirdwood@gmail.com>,
"Lukas Wunner" <lukas@wunner.de>,
"Mark Brown" <broonie@kernel.org>,
"Maíra Canal" <mairacanal@riseup.net>,
"Robin Murphy" <robin.murphy@arm.com>,
"Simona Vetter" <simona.vetter@ffwll.ch>,
"Zijun Hu" <quic_zijuhu@quicinc.com>,
linux-usb@vger.kernel.org, rust-for-linux@vger.kernel.org
Subject: Re: [PATCH v3 1/8] driver core: add a faux bus for use when a simple device/bus is needed
Date: Fri, 7 Feb 2025 10:13:40 +0100 [thread overview]
Message-ID: <2025020748-savings-porthole-9e27@gregkh> (raw)
In-Reply-To: <53d57b821c484c3e229686b4643fbf9486e1e150.camel@redhat.com>
On Thu, Feb 06, 2025 at 03:07:59PM -0500, Lyude Paul wrote:
> On Thu, 2025-02-06 at 19:08 +0100, Thomas Weißschuh wrote:
> > > +
> > > + device_initialize(dev);
> > > + dev->release = faux_device_release;
> > > + dev->parent = &faux_bus_root;
> >
> > I guess nobody will want to hang these off a different parent.
>
> Oh - this is a good point that slipped my mind, how would we want to handle
> this case? The reason I ask is since we have things like
> drivers/gpu/drm/display/drm_dp_aux_dev.c which currently use the virtual
> device API but iirc do actually assign the DRM device owning the aux device as
> the parent.
Having a parent is fine, I just hadn't found any users of that yet.
I'll go add that option for v4.
thanks,
greg k-h
next prev parent reply other threads:[~2025-02-07 9:13 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-06 17:38 [PATCH v3 0/8] Driver core: Add faux bus devices Greg Kroah-Hartman
2025-02-06 17:38 ` [PATCH v3 1/8] driver core: add a faux bus for use when a simple device/bus is needed Greg Kroah-Hartman
2025-02-06 18:08 ` Thomas Weißschuh
2025-02-06 20:07 ` Lyude Paul
2025-02-07 9:13 ` Greg Kroah-Hartman [this message]
2025-02-07 9:15 ` Greg Kroah-Hartman
2025-02-07 2:54 ` Zijun Hu
2025-02-07 9:16 ` Greg Kroah-Hartman
2025-02-06 17:38 ` [PATCH v3 2/8] regulator: dummy: convert to use the faux device interface Greg Kroah-Hartman
2025-02-06 17:38 ` [PATCH v3 3/8] x86/microcode: move away from using a fake platform device Greg Kroah-Hartman
2025-02-06 17:38 ` [PATCH v3 4/8] wifi: cfg80211: " Greg Kroah-Hartman
2025-02-06 17:38 ` [PATCH v3 5/8] tlclk: convert to use faux_device Greg Kroah-Hartman
2025-02-06 17:38 ` [PATCH v3 6/8] misc: lis3lv02d: " Greg Kroah-Hartman
2025-02-06 17:38 ` [PATCH v3 7/8] drm/vgem/vgem_drv " Greg Kroah-Hartman
2025-02-06 20:04 ` Lyude Paul
2025-02-06 17:38 ` [PATCH v3 8/8] drm/vkms: " Greg Kroah-Hartman
2025-02-06 20:03 ` Lyude Paul
2025-02-07 9:16 ` Greg Kroah-Hartman
2025-02-07 16:59 ` Louis Chauvet
2025-02-08 7:12 ` Greg Kroah-Hartman
2025-02-08 8:37 ` Louis Chauvet
2025-02-08 8:49 ` Greg Kroah-Hartman
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