From f2fbc72e6da4f8e01fe5fe3d6871a791e76271c3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 23 Sep 2022 11:26:50 +0200 Subject: vfio/mdev: consolidate all the available_instance sysfs into the core code Every driver just print a number, simply add a method to the mdev_driver to return it and provide a standard sysfs show function. Signed-off-by: Christoph Hellwig Reviewed-by: Jason Gunthorpe Reviewed-by: Kevin Tian Reviewed-by: Kirti Wankhede Reviewed-by: Eric Farman Link: https://lore.kernel.org/r/20220923092652.100656-13-hch@lst.de Signed-off-by: Alex Williamson --- drivers/vfio/mdev/mdev_sysfs.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/vfio/mdev') diff --git a/drivers/vfio/mdev/mdev_sysfs.c b/drivers/vfio/mdev/mdev_sysfs.c index 34583e6a97f2..b7f87c3eda5e 100644 --- a/drivers/vfio/mdev/mdev_sysfs.c +++ b/drivers/vfio/mdev/mdev_sysfs.c @@ -90,10 +90,21 @@ static ssize_t name_show(struct mdev_type *mtype, static MDEV_TYPE_ATTR_RO(name); +static ssize_t available_instances_show(struct mdev_type *mtype, + struct mdev_type_attribute *attr, + char *buf) +{ + struct mdev_driver *drv = mtype->parent->mdev_driver; + + return sysfs_emit(buf, "%u\n", drv->get_available(mtype)); +} +static MDEV_TYPE_ATTR_RO(available_instances); + static struct attribute *mdev_types_core_attrs[] = { &mdev_type_attr_create.attr, &mdev_type_attr_device_api.attr, &mdev_type_attr_name.attr, + &mdev_type_attr_available_instances.attr, NULL, }; -- cgit