From: Greg KH <gregkh@linuxfoundation.org>
To: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>,
Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
davem@davemloft.net, netdev@vger.kernel.org,
linux-rdma@vger.kernel.org, nhorman@redhat.com,
sassmann@redhat.com, pierre-louis.bossart@linux.intel.com,
Fred Oh <fred.oh@linux.intel.com>
Subject: Re: [net-next v4 11/12] ASoC: SOF: Create client driver for IPC test
Date: Thu, 28 May 2020 12:45:45 +0200 [thread overview]
Message-ID: <20200528104545.GA3115014@kroah.com> (raw)
In-Reply-To: <d44a50f6a8af0162a5ff1a6d483adebf16d11256.camel@linux.intel.com>
On Wed, May 27, 2020 at 06:40:05PM -0700, Ranjani Sridharan wrote:
> On Wed, 2020-05-27 at 21:12 -0300, Jason Gunthorpe wrote:
> > On Wed, May 27, 2020 at 01:18:35PM -0700, Ranjani Sridharan wrote:
> > > On Wed, 2020-05-20 at 09:56 -0300, Jason Gunthorpe wrote:
> > > > On Wed, May 20, 2020 at 12:02:26AM -0700, Jeff Kirsher wrote:
> > > > > +static const struct virtbus_dev_id sof_ipc_virtbus_id_table[]
> > > > > = {
> > > > > + {"sof-ipc-test"},
> > > > > + {},
> > > > > +};
> > > > > +
> > > > > +static struct sof_client_drv sof_ipc_test_client_drv = {
> > > > > + .name = "sof-ipc-test-client-drv",
> > > > > + .type = SOF_CLIENT_IPC,
> > > > > + .virtbus_drv = {
> > > > > + .driver = {
> > > > > + .name = "sof-ipc-test-virtbus-drv",
> > > > > + },
> > > > > + .id_table = sof_ipc_virtbus_id_table,
> > > > > + .probe = sof_ipc_test_probe,
> > > > > + .remove = sof_ipc_test_remove,
> > > > > + .shutdown = sof_ipc_test_shutdown,
> > > > > + },
> > > > > +};
> > > > > +
> > > > > +module_sof_client_driver(sof_ipc_test_client_drv);
> > > > > +
> > > > > +MODULE_DESCRIPTION("SOF IPC Test Client Driver");
> > > > > +MODULE_LICENSE("GPL v2");
> > > > > +MODULE_IMPORT_NS(SND_SOC_SOF_CLIENT);
> > > > > +MODULE_ALIAS("virtbus:sof-ipc-test");
> > > >
> > > > Usually the MODULE_ALIAS happens automatically rhough the struct
> > > > virtbus_dev_id - is something missing in the enabling patches?
> > >
> > > Hi Jason,
> > >
> > > Without the MODULE_ALIAS, the driver never probes when the virtual
> > > bus
> > > device is registered. The MODULE_ALIAS is not different from the
> > > ones
> > > we typically have in the platform drivers. Could you please give me
> > > some pointers on what you think might be missing?
> >
> > Look at how the stuff in include/linux/mod_devicetable.h works and do
> > the same for virtbus
> It looks like include/linux/mod_devicetable.h has everything needed for
> virtbus already.
> >
> > Looks like you push a MODALIAS= uevent when creating the device and
> > the generic machinery does the rest based on the matching table, once
> > mod_devicetable.h and related is updated. But it has been a long time
> > since I looked at this..
>
> This is also done with uevent callback in the bus_type definition for
> the virtual_bus.
>
> Is your expectation that with the above changes, we should not be
> needing the MODULE_ALIAS() in the driver?
Yes, it should not be needed if you did everything properly in
mod_devicetable.h
thanks,
greg k-h
next prev parent reply other threads:[~2020-05-28 10:45 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-20 7:02 [net-next v4 00/12][pull request] 100GbE Intel Wired LAN Driver Updates 2020-05-19 Jeff Kirsher
2020-05-20 7:02 ` [net-next v4 01/12] Implementation of Virtual Bus Jeff Kirsher
2020-05-21 14:57 ` Parav Pandit
2020-05-21 17:43 ` gregkh
2020-05-21 20:10 ` Jason Gunthorpe
2020-05-20 7:02 ` [net-next v4 02/12] ice: Create and register virtual bus for RDMA Jeff Kirsher
2020-05-20 7:02 ` [net-next v4 03/12] ice: Complete RDMA peer registration Jeff Kirsher
2020-05-20 7:02 ` [net-next v4 04/12] ice: Support resource allocation requests Jeff Kirsher
2020-05-20 7:02 ` [net-next v4 05/12] ice: Enable event notifications Jeff Kirsher
2020-05-20 7:02 ` [net-next v4 06/12] ice: Allow reset operations Jeff Kirsher
2020-05-20 7:02 ` [net-next v4 07/12] ice: Pass through communications to VF Jeff Kirsher
2020-05-20 7:02 ` [net-next v4 08/12] i40e: Move client header location Jeff Kirsher
2020-05-20 7:02 ` [net-next v4 09/12] i40e: Register a virtbus device to provide RDMA Jeff Kirsher
2020-05-20 7:02 ` [net-next v4 10/12] ASoC: SOF: Introduce descriptors for SOF client Jeff Kirsher
2020-05-20 7:20 ` Greg KH
2020-05-20 12:54 ` Jason Gunthorpe
2020-05-20 12:57 ` Jason Gunthorpe
2020-05-21 21:11 ` Ranjani Sridharan
2020-05-21 23:34 ` Jason Gunthorpe
2020-05-22 14:29 ` Pierre-Louis Bossart
2020-05-22 14:55 ` Jason Gunthorpe
2020-05-22 15:33 ` Pierre-Louis Bossart
2020-05-22 17:10 ` Jason Gunthorpe
2020-05-22 18:35 ` Pierre-Louis Bossart
2020-05-22 18:40 ` Jason Gunthorpe
2020-05-22 18:48 ` Pierre-Louis Bossart
2020-05-22 19:44 ` Jason Gunthorpe
2020-05-22 21:05 ` Pierre-Louis Bossart
2020-06-29 20:59 ` Mark Brown
2020-05-23 6:23 ` Greg KH
2020-05-23 19:41 ` Pierre-Louis Bossart
2020-05-24 6:35 ` Greg KH
2020-05-26 13:15 ` Pierre-Louis Bossart
2020-05-26 13:37 ` Takashi Iwai
2020-05-27 7:17 ` Greg KH
2020-05-27 14:05 ` Pierre-Louis Bossart
2020-06-29 20:33 ` Mark Brown
2020-06-29 22:59 ` Jason Gunthorpe
2020-06-29 23:13 ` Kirsher, Jeffrey T
2020-06-30 10:31 ` Mark Brown
2020-06-30 11:32 ` Jason Gunthorpe
2020-06-30 14:16 ` Mark Brown
2020-06-30 17:24 ` Ranjani Sridharan
2020-06-30 17:27 ` Jason Gunthorpe
2020-07-01 9:50 ` Mark Brown
2020-07-01 23:32 ` Jason Gunthorpe
2020-07-02 11:15 ` Mark Brown
2020-07-02 12:11 ` Jason Gunthorpe
2020-07-02 12:20 ` Mark Brown
2020-07-01 6:59 ` Greg KH
2020-07-02 13:43 ` Ranjani Sridharan
2020-07-06 23:02 ` Dan Williams
2020-07-07 14:16 ` Greg KH
2020-05-25 16:55 ` Jason Gunthorpe
2020-06-29 20:21 ` Mark Brown
2020-06-29 17:36 ` Mark Brown
2020-05-20 7:02 ` [net-next v4 11/12] ASoC: SOF: Create client driver for IPC test Jeff Kirsher
2020-05-20 7:22 ` Greg KH
2020-05-20 12:56 ` Jason Gunthorpe
2020-05-27 20:18 ` Ranjani Sridharan
2020-05-28 0:12 ` Jason Gunthorpe
2020-05-28 1:40 ` Ranjani Sridharan
2020-05-28 10:45 ` Greg KH [this message]
2020-06-29 20:37 ` Mark Brown
2020-05-20 7:02 ` [net-next v4 12/12] ASoC: SOF: ops: Add new op for client registration Jeff Kirsher
2020-05-20 7:23 ` Greg KH
2020-05-20 7:17 ` [net-next v4 00/12][pull request] 100GbE Intel Wired LAN Driver Updates 2020-05-19 Greg KH
2020-05-20 7:25 ` Kirsher, Jeffrey T
2020-05-20 9:08 ` Greg KH
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