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vfio/mdev: consolidate all the name sysfs into the core code

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Every driver just emits a static string, simply add a field to the
mdev_type for the driver to fill out or fall back to the sysfs name and
provide a standard sysfs show function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Link: https://lore.kernel.org/r/20220923092652.100656-12-hch@lst.de
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Christoph Hellwig
2022-09-23 11:26:49 +02:00
committed by Alex Williamson
parent 290aac5df8
commit 0bc79069cc
10 changed files with 27 additions and 72 deletions
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10
drivers/vfio/mdev/mdev_sysfs.c
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@@ -81,9 +81,19 @@ static ssize_t device_api_show(struct mdev_type *mtype,
}
static MDEV_TYPE_ATTR_RO(device_api);
static ssize_t name_show(struct mdev_type *mtype,
struct mdev_type_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n",
mtype->pretty_name ? mtype->pretty_name : mtype->sysfs_name);
}
static MDEV_TYPE_ATTR_RO(name);
static struct attribute *mdev_types_core_attrs[] = {
&mdev_type_attr_create.attr,
&mdev_type_attr_device_api.attr,
&mdev_type_attr_name.attr,
NULL,
};