From: Jason Gunthorpe <jgg@nvidia.com>
To: "Liu, Yi L" <yi.l.liu@intel.com>
Cc: Alex Williamson <alex.williamson@redhat.com>,
Cornelia Huck <cohuck@redhat.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"Raj, Ashok" <ashok.raj@intel.com>,
"Williams, Dan J" <dan.j.williams@intel.com>,
Daniel Vetter <daniel@ffwll.ch>, Christoph Hellwig <hch@lst.de>,
Leon Romanovsky <leonro@nvidia.com>,
Max Gurtovoy <mgurtovoy@nvidia.com>,
Tarun Gupta <targupta@nvidia.com>
Subject: Re: [PATCH 09/10] vfio/pci: Replace uses of vfio_device_data() with container_of
Date: Fri, 12 Mar 2021 10:09:12 -0400 [thread overview]
Message-ID: <20210312140912.GZ2356281@nvidia.com> (raw)
In-Reply-To: <BN6PR11MB4068E9DE96B512A71BF327ECC36F9@BN6PR11MB4068.namprd11.prod.outlook.com>
On Fri, Mar 12, 2021 at 01:42:44PM +0000, Liu, Yi L wrote:
> Hi Jason,
>
> > From: Jason Gunthorpe <jgg@nvidia.com>
> > Sent: Wednesday, March 10, 2021 5:39 AM
> >
> > This tidies a few confused places that think they can have a refcount on
> > the vfio_device but the device_data could be NULL, that isn't possible by
> > design.
>
> I think the purpose of this patch is to use container_of in vfio_pci driver
> since patch 0008 has already let the callbacks of vfio_device_ops to pass in
> struct vfio_device, which can be used to get the vfio_pci_device easily with
> container_of. Just not quite get relationship between the above commit message.
> and the actual purpose. But I'm not a native speaker, so this is not a strong
> comment. Just FYI.
Patch 8,9,10 are a sequence with the goal to remove everything related
to vfio_device_data()
Patch 8 removes the device_data connected to the ops
Patch 9 removes the remaining vfio_device_data calls.
Patch 10 removes device_data completely
Jason
next prev parent reply other threads:[~2021-03-12 14:10 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-09 21:38 [PATCH 00/10] Embed struct vfio_device in all sub-structures Jason Gunthorpe
2021-03-09 21:38 ` [PATCH 01/10] vfio: Simplify the lifetime logic for vfio_device Jason Gunthorpe
2021-03-10 7:23 ` Christoph Hellwig
2021-03-12 15:41 ` Jason Gunthorpe
2021-03-12 16:32 ` Christoph Hellwig
2021-03-09 21:38 ` [PATCH 02/10] vfio: Split creation of a vfio_device into init and register ops Jason Gunthorpe
2021-03-10 7:26 ` Christoph Hellwig
2021-03-12 13:04 ` Liu, Yi L
2021-03-12 14:23 ` Jason Gunthorpe
2021-03-12 16:31 ` Christoph Hellwig
2021-03-09 21:38 ` [PATCH 03/10] vfio/platform: Use vfio_init/register/unregister_group_dev Jason Gunthorpe
2021-03-10 7:28 ` Christoph Hellwig
2021-03-12 17:00 ` Jason Gunthorpe
2021-03-09 21:38 ` [PATCH 04/10] vfio/fsl-mc: " Jason Gunthorpe
2021-03-10 7:30 ` Christoph Hellwig
2021-03-10 12:43 ` Jason Gunthorpe
2021-03-09 21:38 ` [PATCH 05/10] vfio/pci: " Jason Gunthorpe
2021-03-10 7:31 ` Christoph Hellwig
2021-03-12 12:53 ` Liu, Yi L
2021-03-12 13:58 ` Jason Gunthorpe
2021-03-09 21:38 ` [PATCH 06/10] vfio/mdev: " Jason Gunthorpe
2021-03-10 7:31 ` Christoph Hellwig
2021-03-12 13:09 ` Liu, Yi L
2021-03-09 21:38 ` [PATCH 07/10] vfio/mdev: Make to_mdev_device() into a static inline Jason Gunthorpe
2021-03-10 7:32 ` Christoph Hellwig
2021-03-09 21:38 ` [PATCH 08/10] vfio: Make vfio_device_ops pass a 'struct vfio_device *' instead of 'void *' Jason Gunthorpe
2021-03-10 5:52 ` Dan Williams
2021-03-10 6:24 ` Leon Romanovsky
2021-03-10 12:58 ` Jason Gunthorpe
2021-03-10 20:01 ` Dan Williams
2021-03-12 13:42 ` Liu, Yi L
2021-03-12 14:06 ` Jason Gunthorpe
2021-03-09 21:38 ` [PATCH 09/10] vfio/pci: Replace uses of vfio_device_data() with container_of Jason Gunthorpe
2021-03-10 7:36 ` Christoph Hellwig
2021-03-10 19:59 ` Jason Gunthorpe
2021-03-11 11:21 ` Christoph Hellwig
2021-03-12 13:42 ` Liu, Yi L
2021-03-12 14:09 ` Jason Gunthorpe [this message]
2021-03-09 21:38 ` [PATCH 10/10] vfio: Remove device_data from the vfio bus driver API Jason Gunthorpe
2021-03-10 7:37 ` Christoph Hellwig
2021-03-10 23:52 ` [PATCH 00/10] Embed struct vfio_device in all sub-structures Alex Williamson
2021-03-10 23:57 ` Jason Gunthorpe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210312140912.GZ2356281@nvidia.com \
--to=jgg@nvidia.com \
--cc=alex.williamson@redhat.com \
--cc=ashok.raj@intel.com \
--cc=cohuck@redhat.com \
--cc=dan.j.williams@intel.com \
--cc=daniel@ffwll.ch \
--cc=hch@lst.de \
--cc=kvm@vger.kernel.org \
--cc=leonro@nvidia.com \
--cc=mgurtovoy@nvidia.com \
--cc=targupta@nvidia.com \
--cc=yi.l.liu@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.