From: Christoph Hellwig <hch@lst.de>
To: Kirti Wankhede <kwankhede@nvidia.com>,
Tony Krowiak <akrowiak@linux.ibm.com>,
Halil Pasic <pasic@linux.ibm.com>,
Jason Herne <jjherne@linux.ibm.com>,
Eric Farman <farman@linux.ibm.com>,
Matthew Rosato <mjrosato@linux.ibm.com>,
Zhenyu Wang <zhenyuw@linux.intel.com>,
Zhi Wang <zhi.a.wang@intel.com>,
Alex Williamson <alex.williamson@redhat.com>
Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org,
intel-gvt-dev@lists.freedesktop.org
Subject: [PATCH 4/8] vfio/mdev: remove mdev_{create,remove}_sysfs_files
Date: Fri, 3 Jun 2022 08:33:24 +0200 [thread overview]
Message-ID: <20220603063328.3715-5-hch@lst.de> (raw)
In-Reply-To: <20220603063328.3715-1-hch@lst.de>
Just fold these two trivial helpers into their only callers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/vfio/mdev/mdev_core.c | 12 ++++++++++--
drivers/vfio/mdev/mdev_private.h | 3 ---
drivers/vfio/mdev/mdev_sysfs.c | 28 ----------------------------
3 files changed, 10 insertions(+), 33 deletions(-)
diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
index ff38c9549a55e..34b01d45cfe9f 100644
--- a/drivers/vfio/mdev/mdev_core.c
+++ b/drivers/vfio/mdev/mdev_core.c
@@ -46,7 +46,8 @@ static void mdev_device_remove_common(struct mdev_device *mdev)
{
struct mdev_parent *parent = mdev->type->parent;
- mdev_remove_sysfs_files(mdev);
+ sysfs_remove_link(&mdev->dev.kobj, "mdev_type");
+ sysfs_remove_link(mdev->type->devices_kobj, dev_name(&mdev->dev));
device_del(&mdev->dev);
lockdep_assert_held(&parent->unreg_sem);
/* Balances with device_initialize() */
@@ -193,16 +194,23 @@ int mdev_device_create(struct mdev_type *type, const guid_t *uuid)
if (ret)
goto out_del;
- ret = mdev_create_sysfs_files(mdev);
+ ret = sysfs_create_link(type->devices_kobj, &mdev->dev.kobj,
+ dev_name(&mdev->dev));
if (ret)
goto out_del;
+ ret = sysfs_create_link(&mdev->dev.kobj, &type->kobj, "mdev_type");
+ if (ret)
+ goto out_remove_type_link;
+
mdev->active = true;
dev_dbg(&mdev->dev, "MDEV: created\n");
up_read(&parent->unreg_sem);
return 0;
+out_remove_type_link:
+ sysfs_remove_link(mdev->type->devices_kobj, dev_name(&mdev->dev));
out_del:
device_del(&mdev->dev);
out_unlock:
diff --git a/drivers/vfio/mdev/mdev_private.h b/drivers/vfio/mdev/mdev_private.h
index 476cc0379ede0..277819f1ebed8 100644
--- a/drivers/vfio/mdev/mdev_private.h
+++ b/drivers/vfio/mdev/mdev_private.h
@@ -20,9 +20,6 @@ extern const struct attribute_group *mdev_device_groups[];
#define to_mdev_type(_kobj) \
container_of(_kobj, struct mdev_type, kobj)
-int mdev_create_sysfs_files(struct mdev_device *mdev);
-void mdev_remove_sysfs_files(struct mdev_device *mdev);
-
int mdev_device_create(struct mdev_type *kobj, const guid_t *uuid);
int mdev_device_remove(struct mdev_device *dev);
diff --git a/drivers/vfio/mdev/mdev_sysfs.c b/drivers/vfio/mdev/mdev_sysfs.c
index fb058755d85b8..b6bc623487f06 100644
--- a/drivers/vfio/mdev/mdev_sysfs.c
+++ b/drivers/vfio/mdev/mdev_sysfs.c
@@ -176,31 +176,3 @@ const struct attribute_group *mdev_device_groups[] = {
&mdev_device_group,
NULL
};
-
-int mdev_create_sysfs_files(struct mdev_device *mdev)
-{
- struct mdev_type *type = mdev->type;
- struct kobject *kobj = &mdev->dev.kobj;
- int ret;
-
- ret = sysfs_create_link(type->devices_kobj, kobj, dev_name(&mdev->dev));
- if (ret)
- return ret;
-
- ret = sysfs_create_link(kobj, &type->kobj, "mdev_type");
- if (ret)
- goto type_link_failed;
- return ret;
-
-type_link_failed:
- sysfs_remove_link(mdev->type->devices_kobj, dev_name(&mdev->dev));
- return ret;
-}
-
-void mdev_remove_sysfs_files(struct mdev_device *mdev)
-{
- struct kobject *kobj = &mdev->dev.kobj;
-
- sysfs_remove_link(kobj, "mdev_type");
- sysfs_remove_link(mdev->type->devices_kobj, dev_name(&mdev->dev));
-}
--
2.30.2
next prev parent reply other threads:[~2022-06-03 6:33 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-03 6:33 simplify the mdev interface Christoph Hellwig
2022-06-03 6:33 ` [PATCH 1/8] vfio/mdev: make mdev.h standalone includable Christoph Hellwig
2022-06-06 23:21 ` Jason Gunthorpe
2022-06-09 6:43 ` Tian, Kevin
2022-06-03 6:33 ` [PATCH 2/8] vfio/mdev: embedd struct mdev_parent in the parent data structure Christoph Hellwig
2022-06-06 19:22 ` Kirti Wankhede
2022-06-07 5:48 ` Christoph Hellwig
2022-06-09 6:52 ` Tian, Kevin
2022-06-03 6:33 ` [PATCH 3/8] vfio/mdev: simplify mdev_type handling Christoph Hellwig
2022-06-06 19:22 ` Kirti Wankhede
2022-06-07 5:50 ` Christoph Hellwig
2022-06-08 17:57 ` Kirti Wankhede
2022-06-09 7:16 ` Christoph Hellwig
2022-06-06 23:38 ` Jason Gunthorpe
2022-06-07 5:56 ` Christoph Hellwig
2022-06-03 6:33 ` Christoph Hellwig [this message]
2022-06-06 23:38 ` [PATCH 4/8] vfio/mdev: remove mdev_{create,remove}_sysfs_files Jason Gunthorpe
2022-06-09 6:55 ` Tian, Kevin
2022-06-03 6:33 ` [PATCH 5/8] vfio/mdev: remove mdev_from_dev Christoph Hellwig
2022-06-06 23:45 ` Jason Gunthorpe
2022-06-09 6:56 ` Tian, Kevin
2022-06-03 6:33 ` [PATCH 6/8] vfio/mdev: unexport mdev_bus_type Christoph Hellwig
2022-06-06 23:46 ` Jason Gunthorpe
2022-06-09 6:57 ` Tian, Kevin
2022-06-03 6:33 ` [PATCH 7/8] vfio/mdev: remove mdev_parent_dev Christoph Hellwig
2022-06-06 23:46 ` Jason Gunthorpe
2022-06-09 6:58 ` Tian, Kevin
2022-06-03 6:33 ` [PATCH 8/8] vfio/mdev: remove mtype_get_parent_dev Christoph Hellwig
2022-06-06 23:46 ` Jason Gunthorpe
2022-06-09 6:58 ` Tian, Kevin
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