linux-kernel - Re: [RFC PATCH v5 2/4] remoteproc: core: Introduce rproc_register

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Date:   Fri, 3 Jun 2022 13:53:50 +0200
From:   Arnaud POULIQUEN <arnaud.pouliquen@...s.st.com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
CC:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        Rob Herring <robh@...nel.org>, Christoph Hellwig <hch@....de>,
        Stefano Stabellini <stefanos@...inx.com>,
        Bruce Ashfield <bruce.ashfield@...inx.com>
Subject: Re: [RFC PATCH v5 2/4] remoteproc: core: Introduce
 rproc_register_rvdev function

Hello Mathieu,

On 6/1/22 19:41, Mathieu Poirier wrote:
> On Wed, Apr 06, 2022 at 11:54:44AM +0200, Arnaud Pouliquen wrote:
>> The rproc structure contains a list of registered rproc_vdev structure.
> 
> This should be rproc_rvdev.

Thanks for your review!

I will send a new version according to your comments except
this one.
The structure name rproc_vdev is the good one, or
or maybe I'm missing something?

Thanks,
Arnaud

> 
>> To be able to move the management of the rproc_vdev structure in
>> remoteproc_virtio.c (i.e rproc_rvdev_add_device and
>> rproc_rvdev_remove_device functions), introduce the rproc_register_rvdev
>> and rproc_unregister_rvdev functions.
> 
> The name of those functions doesn't match the content of the patch.
> 
>>
>> Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
>> ---
>>  drivers/remoteproc/remoteproc_core.c | 16 ++++++++++++++--
>>  1 file changed, 14 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
>> index 3a469220ac73..081bea39daf4 100644
>> --- a/drivers/remoteproc/remoteproc_core.c
>> +++ b/drivers/remoteproc/remoteproc_core.c
>> @@ -484,6 +484,18 @@ static int copy_dma_range_map(struct device *to, struct device *from)
>>  	return 0;
>>  }
>>  
>> +static void rproc_add_rvdev(struct rproc *rproc, struct rproc_vdev *rvdev)
>> +{
>> +	if (rvdev && rproc)
>> +		list_add_tail(&rvdev->node, &rproc->rvdevs);
>> +}
>> +
>> +static void rproc_remove_rvdev(struct rproc_vdev *rvdev)
>> +{
>> +	if (rvdev)
>> +		list_del(&rvdev->node);
>> +}
>> +
>>  static struct rproc_vdev *
>>  rproc_rvdev_add_device(struct rproc *rproc, struct rproc_vdev_data *rvdev_data)
>>  {
>> @@ -547,7 +559,7 @@ rproc_rvdev_add_device(struct rproc *rproc, struct rproc_vdev_data *rvdev_data)
>>  			goto unwind_vring_allocations;
>>  	}
>>  
>> -	list_add_tail(&rvdev->node, &rproc->rvdevs);
>> +	rproc_add_rvdev(rproc, rvdev);
>>  
>>  	rvdev->subdev.start = rproc_vdev_do_start;
>>  	rvdev->subdev.stop = rproc_vdev_do_stop;
>> @@ -576,7 +588,7 @@ static void rproc_rvdev_remove_device(struct rproc_vdev *rvdev)
>>  	}
>>  
>>  	rproc_remove_subdev(rproc, &rvdev->subdev);
>> -	list_del(&rvdev->node);
>> +	rproc_remove_rvdev(rvdev);
> 
> With the above:
> 
> Reviewed-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> 
>>  	device_unregister(&rvdev->dev);
>>  }
>>  
>> -- 
>> 2.25.1
>>