linux-kernel - Re: [PATCH] virtio: Add missing documentation for structure fields

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Date:   Wed, 10 May 2023 22:01:17 +0200
From:   Simon Horman <horms@...nel.org>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     Jason Wang <jasowang@...hat.com>,
        Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] virtio: Add missing documentation for structure fields

On Wed, May 10, 2023 at 12:04:21PM -0400, Michael S. Tsirkin wrote:
> On Wed, May 10, 2023 at 02:23:12PM +0200, Simon Horman wrote:
> > Add missing documentation for the vqs_list_lock field of struct virtio_device,
> > and the validate field of struct virtio_driver.
> > 
> > ./scripts/kernel-doc says:
> > 
> >  .../virtio.h:131: warning: Function parameter or member 'vqs_list_lock' not described in 'virtio_device'
> >  .../virtio.h:192: warning: Function parameter or member 'validate' not described in 'virtio_driver'
> >  2 warnings as Errors
> > 
> > No functional changes intended.
> > 
> > Signed-off-by: Simon Horman <horms@...nel.org>
> > ---
> >  include/linux/virtio.h | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/include/linux/virtio.h b/include/linux/virtio.h
> > index b93238db94e3..0b2b82ee3220 100644
> > --- a/include/linux/virtio.h
> > +++ b/include/linux/virtio.h
> > @@ -103,6 +103,7 @@ int virtqueue_resize(struct virtqueue *vq, u32 num,
> >   * @config_enabled: configuration change reporting enabled
> >   * @config_change_pending: configuration change reported while disabled
> >   * @config_lock: protects configuration change reporting
> > + * @vqs_list_lock: protects @vqs.
> >   * @dev: underlying device.
> >   * @id: the device type identification (used to match it with a driver).
> >   * @config: the configuration ops for this device.
> > @@ -160,6 +161,7 @@ size_t virtio_max_dma_size(const struct virtio_device *vdev);
> >   * @feature_table_size: number of entries in the feature table array.
> >   * @feature_table_legacy: same as feature_table but when working in legacy mode.
> >   * @feature_table_size_legacy: number of entries in feature table legacy array.
> > + * @validate: the function to call to vaidate features at probe time.
> 
> typo
> 
> and this is called before probe actually not at probe time

Thanks, how about the following?

* @validate: the function to call to validate features

> >   * @probe: the function to call when a device is found.  Returns 0 or -errno.
> >   * @scan: optional function to call after successful probe; intended
> >   *    for virtio-scsi to invoke a scan.
>