linux-stable.git/drivers/vfio/platform, branch linux-5.14.y

vfio/platform: remove unneeded parent_module attribute

2021-06-15T20:12:15+00:00

The vfio core driver is now taking refcount on the provider drivers,
remove redundant parent_module attribute from vfio_platform_device
structure.

Signed-off-by: Max Gurtovoy 
Acked-by: Eric Auger 
Link: https://lore.kernel.org/r/20210518192133.59195-3-mgurtovoy@nvidia.com
Signed-off-by: Alex Williamson

vfio: centralize module refcount in subsystem layer

2021-06-15T20:12:15+00:00

Remove code duplication and move module refcounting to the subsystem
module.

Signed-off-by: Max Gurtovoy 
Reviewed-by: Eric Auger 
Link: https://lore.kernel.org/r/20210518192133.59195-2-mgurtovoy@nvidia.com
Signed-off-by: Alex Williamson

vfio/platform: fix module_put call in error flow

2021-05-24T19:40:13+00:00

The ->parent_module is the one that use in try_module_get. It should
also be the one the we use in module_put during vfio_platform_open().

Fixes: 32a2d71c4e80 ("vfio: platform: introduce vfio-platform-base module")
Signed-off-by: Max Gurtovoy 
Message-Id: <20210518192133.59195-1-mgurtovoy@nvidia.com>
Signed-off-by: Alex Williamson

Merge branches 'v5.13/vfio/embed-vfio_device', 'v5.13/vfio/misc' and 'v5.13/vfio/nvlink' into v5.13/vfio/next

2021-04-06T18:01:51+00:00

Spelling fixes merged with file deletion.

Conflicts:
	drivers/vfio/pci/vfio_pci_nvlink2.c

Signed-off-by: Alex Williamson

vfio: Remove device_data from the vfio bus driver API

2021-04-06T17:55:11+00:00

There are no longer any users, so it can go away. Everything is using
container_of now.

Reviewed-by: Christoph Hellwig 
Reviewed-by: Kevin Tian 
Reviewed-by: Cornelia Huck 
Reviewed-by: Max Gurtovoy 
Signed-off-by: Jason Gunthorpe 
Message-Id: <14-v3-225de1400dfc+4e074-vfio1_jgg@nvidia.com>
Signed-off-by: Alex Williamson

vfio: Make vfio_device_ops pass a 'struct vfio_device ' instead of 'void '

2021-04-06T17:55:11+00:00

This is the standard kernel pattern, the ops associated with a struct get
the struct pointer in for typesafety. The expected design is to use
container_of to cleanly go from the subsystem level type to the driver
level type without having any type erasure in a void *.

Reviewed-by: Dan Williams 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Cornelia Huck 
Signed-off-by: Jason Gunthorpe 
Message-Id: <12-v3-225de1400dfc+4e074-vfio1_jgg@nvidia.com>
Signed-off-by: Alex Williamson

vfio/platform: Use vfio_init/register/unregister_group_dev

2021-04-06T17:55:10+00:00

platform already allocates a struct vfio_platform_device with exactly
the same lifetime as vfio_device, switch to the new API and embed
vfio_device in vfio_platform_device.

Reviewed-by: Christoph Hellwig 
Reviewed-by: Cornelia Huck 
Acked-by: Eric Auger 
Tested-by: Eric Auger 
Signed-off-by: Jason Gunthorpe 
Message-Id: <4-v3-225de1400dfc+4e074-vfio1_jgg@nvidia.com>
Signed-off-by: Alex Williamson

vfio/platform: Fix spelling mistake "registe" -> "register"

2021-04-06T17:53:50+00:00

There is a spelling mistake in a comment, fix it.

Signed-off-by: Zhen Lei 
Acked-by: Eric Auger 
Message-Id: <20210326083528.1329-5-thunder.leizhen@huawei.com>
Signed-off-by: Alex Williamson

ARM: amba: Allow some ARM_AMBA users to compile with COMPILE_TEST

2021-03-16T16:39:28+00:00

CONFIG_VFIO_AMBA has a light use of AMBA, adding some inline fallbacks
when AMBA is disabled will allow it to be compiled under COMPILE_TEST and
make VFIO easier to maintain.

Signed-off-by: Jason Gunthorpe 
Message-Id: <3-v1-df057e0f92c3+91-vfio_arm_compile_test_jgg@nvidia.com>
Reviewed-by: Eric Auger 
Signed-off-by: Alex Williamson

vfio-platform: Add COMPILE_TEST to VFIO_PLATFORM