From: Leon Romanovsky <leon@kernel.org>
To: Dave Ertman <david.m.ertman@intel.com>
Cc: alsa-devel@alsa-project.org, tiwai@suse.de, broonie@kernel.org,
linux-rdma@vger.kernel.org, jgg@nvidia.com, dledford@redhat.com,
netdev@vger.kernel.org, davem@davemloft.net, kuba@kernel.org,
gregkh@linuxfoundation.org, ranjani.sridharan@linux.intel.com,
pierre-louis.bossart@linux.intel.com, fred.oh@linux.intel.com,
parav@mellanox.com, shiraz.saleem@intel.com,
dan.j.williams@intel.com, kiran.patil@intel.com
Subject: Re: [PATCH v2 1/6] Add ancillary bus support
Date: Tue, 6 Oct 2020 20:23:17 +0300 [thread overview]
Message-ID: <20201006172317.GN1874917@unreal> (raw)
In-Reply-To: <20201005182446.977325-2-david.m.ertman@intel.com>
On Mon, Oct 05, 2020 at 11:24:41AM -0700, Dave Ertman wrote:
> Add support for the Ancillary Bus, ancillary_device and ancillary_driver.
> It enables drivers to create an ancillary_device and bind an
> ancillary_driver to it.
>
> The bus supports probe/remove shutdown and suspend/resume callbacks.
> Each ancillary_device has a unique string based id; driver binds to
> an ancillary_device based on this id through the bus.
>
> Co-developed-by: Kiran Patil <kiran.patil@intel.com>
> Signed-off-by: Kiran Patil <kiran.patil@intel.com>
> Co-developed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
> Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
> Co-developed-by: Fred Oh <fred.oh@linux.intel.com>
> Signed-off-by: Fred Oh <fred.oh@linux.intel.com>
> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
> Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
> Reviewed-by: Parav Pandit <parav@mellanox.com>
> Reviewed-by: Dan Williams <dan.j.williams@intel.com>
> Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
> ---
<...>
> +/**
> + * __ancillary_driver_register - register a driver for ancillary bus devices
> + * @ancildrv: ancillary_driver structure
> + * @owner: owning module/driver
> + */
> +int __ancillary_driver_register(struct ancillary_driver *ancildrv, struct module *owner)
> +{
> + if (WARN_ON(!ancildrv->probe) || WARN_ON(!ancildrv->remove) ||
> + WARN_ON(!ancildrv->shutdown) || WARN_ON(!ancildrv->id_table))
> + return -EINVAL;
In our driver ->shutdown is empty, it will be best if ancillary bus will
do "if (->remove) ..->remove()" pattern.
> +
> + ancildrv->driver.owner = owner;
> + ancildrv->driver.bus = &ancillary_bus_type;
> + ancildrv->driver.probe = ancillary_probe_driver;
> + ancildrv->driver.remove = ancillary_remove_driver;
> + ancildrv->driver.shutdown = ancillary_shutdown_driver;
> +
I think that this part is wrong, probe/remove/shutdown functions should
come from ancillary_bus_type. You are overwriting private device_driver
callbacks that makes impossible to make container_of of ancillary_driver
to chain operations.
> + return driver_register(&ancildrv->driver);
> +}
> +EXPORT_SYMBOL_GPL(__ancillary_driver_register);
Thanks
next prev parent reply other threads:[~2020-10-06 17:23 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-05 18:24 [PATCH v2 0/6] Ancillary bus implementation and SOF multi-client support Dave Ertman
2020-10-05 18:24 ` [PATCH v2 1/6] Add ancillary bus support Dave Ertman
2020-10-06 7:18 ` Leon Romanovsky
2020-10-06 15:18 ` Pierre-Louis Bossart
2020-10-06 17:02 ` Leon Romanovsky
2020-10-06 17:09 ` Parav Pandit
2020-10-06 17:26 ` Leon Romanovsky
2020-10-06 17:41 ` Saleem, Shiraz
2020-10-06 19:20 ` Leon Romanovsky
2020-10-07 2:49 ` Dan Williams
2020-10-07 13:09 ` Saleem, Shiraz
2020-10-07 13:36 ` Leon Romanovsky
2020-10-07 18:55 ` Dan Williams
2020-10-07 20:01 ` Ertman, David M
2020-10-06 18:35 ` Ranjani Sridharan
2020-10-06 17:50 ` Saleem, Shiraz
2020-10-07 18:06 ` Ertman, David M
2020-10-07 19:26 ` Leon Romanovsky
2020-10-07 19:53 ` Ertman, David M
2020-10-07 19:57 ` Ertman, David M
2020-10-07 20:17 ` Parav Pandit
2020-10-07 20:46 ` Ertman, David M
2020-10-07 20:59 ` Pierre-Louis Bossart
2020-10-07 21:22 ` Ertman, David M
2020-10-07 21:49 ` Pierre-Louis Bossart
2020-10-08 4:56 ` Parav Pandit
2020-10-08 5:26 ` Leon Romanovsky
2020-10-08 7:14 ` Parav Pandit
2020-10-08 7:45 ` Leon Romanovsky
2020-10-08 9:45 ` Parav Pandit
2020-10-08 10:17 ` Leon Romanovsky
2020-10-08 13:29 ` Pierre-Louis Bossart
2020-10-09 11:40 ` Leon Romanovsky
2020-10-08 16:54 ` Ertman, David M
2020-10-08 17:35 ` Parav Pandit
2020-10-08 18:13 ` Ertman, David M
2020-10-08 5:21 ` Leon Romanovsky
2020-10-08 6:32 ` Dan Williams
2020-10-08 7:00 ` Leon Romanovsky
2020-10-08 7:38 ` Dan Williams
2020-10-08 7:50 ` gregkh
2020-10-08 11:10 ` Parav Pandit
2020-10-08 16:39 ` Ertman, David M
2020-10-08 8:00 ` Leon Romanovsky
2020-10-08 8:09 ` Dan Williams
2020-10-08 16:42 ` Ertman, David M
2020-10-08 17:21 ` Leon Romanovsky
2020-10-08 18:25 ` Ertman, David M
2020-10-07 20:30 ` Ertman, David M
2020-10-07 20:18 ` Ertman, David M
2020-10-06 17:23 ` Leon Romanovsky [this message]
2020-10-06 17:45 ` Saleem, Shiraz
2020-10-08 22:04 ` Ertman, David M
2020-10-08 22:41 ` Dan Williams
2020-10-09 14:26 ` Pierre-Louis Bossart
2020-10-09 19:22 ` Dan Williams
2020-10-09 19:39 ` Pierre-Louis Bossart
2020-10-12 18:34 ` Ertman, David M
2020-10-08 17:20 ` Leon Romanovsky
2020-10-08 17:28 ` Ertman, David M
2020-10-05 18:24 ` [PATCH v2 2/6] ASoC: SOF: Introduce descriptors for SOF client Dave Ertman
2020-10-13 1:05 ` Randy Dunlap
2020-10-13 1:31 ` Pierre-Louis Bossart
2020-10-13 1:55 ` Randy Dunlap
2020-10-13 1:56 ` Randy Dunlap
2020-10-13 15:08 ` Pierre-Louis Bossart
2020-10-13 19:35 ` Randy Dunlap
2020-10-13 19:57 ` Pierre-Louis Bossart
2020-10-05 18:24 ` [PATCH v2 3/6] ASoC: SOF: Create client driver for IPC test Dave Ertman
2020-10-05 18:24 ` [PATCH v2 4/6] ASoC: SOF: ops: Add ops for client registration Dave Ertman
2020-10-05 18:24 ` [PATCH v2 5/6] ASoC: SOF: Intel: Define " Dave Ertman
2020-10-05 18:24 ` [PATCH v2 6/6] ASoC: SOF: debug: Remove IPC flood test support in SOF core Dave Ertman
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