Jason Gunthorpe a2fbf4acd2 vfio: Split creation of a vfio_device into init and register ops ... [ Upstream commit 0bfc6a4ea6 ] This makes the struct vfio_device part of the public interface so it can be used with container_of and so forth, as is typical for a Linux subystem. This is the first step to bring some type-safety to the vfio interface by allowing the replacement of 'void *' and 'struct device *' inputs with a simple and clear 'struct vfio_device *' For now the self-allocating vfio_add_group_dev() interface is kept so each user can be updated as a separate patch. The expected usage pattern is driver core probe() function: my_device = kzalloc(sizeof(*mydevice)); vfio_init_group_dev(&my_device->vdev, dev, ops, mydevice); /* other driver specific prep */ vfio_register_group_dev(&my_device->vdev); dev_set_drvdata(dev, my_device); driver core remove() function: my_device = dev_get_drvdata(dev); vfio_unregister_group_dev(&my_device->vdev); /* other driver specific tear down */ kfree(my_device); Allowing the driver to be able to use the drvdata and vfio_device to go to/from its own data. The pattern also makes it clear that vfio_register_group_dev() must be last in the sequence, as once it is called the core code can immediately start calling ops. The init/register gap is provided to allow for the driver to do setup before ops can be called and thus avoid races. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Liu Yi L <yi.l.liu@intel.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Message-Id: <3-v3-225de1400dfc+4e074-vfio1_jgg@nvidia.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-08-21 15:16:07 +02:00
..
acpi	ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitions	2022-01-27 10:54:18 +01:00
asm-generic	tlb: hugetlb: Add more sizes to tlb_remove_huge_tlb_entry	2022-04-20 09:23:22 +02:00
clocksource	clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG	2021-07-14 16:56:12 +02:00
crypto	crypto: drbg - make reseeding from get_random_bytes() synchronous	2022-06-06 08:42:42 +02:00
drm	drm: fix EDID struct for old ARM OABI format	2022-06-09 10:20:59 +02:00
dt-bindings	clk: imx8mq: remove SYS PLL 1/2 clock gates	2021-07-14 16:56:20 +02:00
keys	certs: Add EFI_CERT_X509_GUID support for dbx entries	2021-06-30 08:47:30 -04:00
kunit	kunit: fix display of failed expectations for strings	2020-11-10 13:45:15 -07:00
kvm	ARM:	2020-10-23 11:17:56 -07:00
linux	vfio: Split creation of a vfio_device into init and register ops	2022-08-21 15:16:07 +02:00
math-emu
media	media: subdev: disallow ioctl for saa6588/davinci	2021-07-19 09:45:02 +02:00
memory	memory: renesas-rpc-if: Fix HF/OSPI data transfer in Manual Mode	2022-05-09 09:05:02 +02:00
misc
net	net: allow unbound socket for packets in VRF when tcp_l3mdev_accept set	2022-08-21 15:15:51 +02:00
pcmcia
ras
rdma	RDMA/netlink: Add __maybe_unused to static inline in C file	2021-11-26 10:39:21 +01:00
scsi	scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac()	2022-06-09 10:21:15 +02:00
soc	firmware: raspberrypi: Keep count of all consumers	2021-09-15 09:50:41 +02:00
sound	ALSA: jack: Access input_dev under mutex	2022-06-09 10:20:51 +02:00
target	scsi: target: Fix ordered tag handling	2021-11-26 10:39:11 +01:00
trace	block: remove the request_queue to argument request based tracepoints	2022-08-21 15:15:36 +02:00
uapi	netfilter: xtables: Bring SPDX identifier back	2022-08-21 15:15:54 +02:00
vdso
video	video: of_display_timing.h: include errno.h	2022-07-12 16:32:19 +02:00
xen	xen/gnttab: fix gnttab_end_foreign_access() without page specified	2022-03-11 12:11:54 +01:00