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| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-04-11 16:14:02 +0200 |
|---|---|---|
| committer | Zhi Wang <zhi.a.wang@intel.com> | 2022-04-21 07:36:56 -0400 |
| commit | 2aa72ec97ce9eb092cb69efd26f5eb2469e61734 (patch) | |
| tree | f66d01ba6f0288d269e0614794f35c8d92301e87 /drivers/vfio/mdev/mdev_private.h | |
| parent | 6b42f491e17ce13f5ff7f2d1f49c73a0f4c47b20 (diff) | |
| download | linux-2aa72ec97ce9eb092cb69efd26f5eb2469e61734.tar.bz2 | |
vfio/mdev: Use the driver core to create the 'remove' file
The device creator is supposed to use the dev.groups value to add sysfs
files before device_add is called, not call sysfs_create_files() after
device_add() returns. This creates a race with uevent delivery where the
extra attribute will not be visible.
This was being done because the groups had been co-opted by the mdev
driver, now that prior patches have moved the driver's groups to the
struct device_driver the dev.group is properly free for use here.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220411141403.86980-34-hch@lst.de
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Diffstat (limited to 'drivers/vfio/mdev/mdev_private.h')
| -rw-r--r-- | drivers/vfio/mdev/mdev_private.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/vfio/mdev/mdev_private.h b/drivers/vfio/mdev/mdev_private.h index 5a7ffd4e770f..7c9fc79f3d83 100644 --- a/drivers/vfio/mdev/mdev_private.h +++ b/drivers/vfio/mdev/mdev_private.h @@ -32,6 +32,8 @@ struct mdev_type { unsigned int type_group_id; }; +extern const struct attribute_group *mdev_device_groups[]; + #define to_mdev_type_attr(_attr) \ container_of(_attr, struct mdev_type_attribute, attr) #define to_mdev_type(_kobj) \ |