netdev - Re: [net-next v2 1/9] Implementation of Virtual Bus

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Date:   Tue, 21 Apr 2020 10:47:37 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Cc:     davem@...emloft.net, Dave Ertman <david.m.ertman@...el.com>,
        netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        nhorman@...hat.com, sassmann@...hat.com, jgg@...pe.ca,
        parav@...lanox.com, galpress@...zon.com,
        selvin.xavier@...adcom.com, sriharsha.basavapatna@...adcom.com,
        benve@...co.com, bharat@...lsio.com, xavier.huwei@...wei.com,
        yishaih@...lanox.com, leonro@...lanox.com, mkalderon@...vell.com,
        aditr@...are.com, ranjani.sridharan@...ux.intel.com,
        pierre-louis.bossart@...ux.intel.com,
        Kiran Patil <kiran.patil@...el.com>,
        Andrew Bowers <andrewx.bowers@...el.com>
Subject: Re: [net-next v2 1/9] Implementation of Virtual Bus

On Tue, Apr 21, 2020 at 01:02:27AM -0700, Jeff Kirsher wrote:
> +struct virtbus_driver {
> +	int (*probe)(struct virtbus_device *);
> +	int (*remove)(struct virtbus_device *);
> +	void (*shutdown)(struct virtbus_device *);
> +	int (*suspend)(struct virtbus_device *, pm_message_t);
> +	int (*resume)(struct virtbus_device *);
> +	struct device_driver driver;
> +	const struct virtbus_dev_id *id_table;
> +};

You create this type of driver, but then never use it in your
implementations that happen to create virtbus devices.  So does that
imply that you do not need virbus_drivers at all?  Why add all of this
code that never gets used?

Or perhaps you should be creating a virbus driver?  I can't tell, but as
it is, this series is not ready to be merged.

greg k-h