Revert "kernfs, sysfs, driver-core: implement kernfs_remove_self() and its wrappers"

This reverts commit 1ae06819c77cff1ea2833c94f8c093fe8a5c79db.

Tejun writes:
        I'm sorry but can you please revert the whole series?
        get_active() waiting while a node is deactivated has potential
        to lead to deadlock and that deactivate/reactivate interface is
        something fundamentally flawed and that cgroup will have to work
        with the remove_self() like everybody else.  IOW, I think the
        first posting was correct.

Cc: Tejun Heo <tj@kernel.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 17 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 9db57afcf81f..2b567177ef78 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -571,23 +571,6 @@ void device_remove_file(struct device *dev,
 EXPORT_SYMBOL_GPL(device_remove_file);
 
 /**
- * device_remove_file_self - remove sysfs attribute file from its own method.
- * @dev: device.
- * @attr: device attribute descriptor.
- *
- * See kernfs_remove_self() for details.
- */
-bool device_remove_file_self(struct device *dev,
-                             const struct device_attribute *attr)
-{
-        if (dev)
-                return sysfs_remove_file_self(&dev->kobj, &attr->attr);
-        else
-                return false;
-}
-EXPORT_SYMBOL_GPL(device_remove_file_self);
-
-/**
  * device_create_bin_file - create sysfs binary attribute file for device.
  * @dev: device.
  * @attr: device binary attribute descriptor.