Re: [PATCH v7 1/3] sysfs: added sysfs_link_entry_to_kobj()

[Jason Gunthorpe]

On Mon, Jun 22, 2015 at 01:30:39PM -0400, Tejun Heo wrote:
> On Mon, Jun 22, 2015 at 08:24:50PM +0300, Jarkko Sakkinen wrote:
> > Added a new function sysfs_link_group_to_kobj() that adds a symlink
> > from attribute or group to a kobject. Exported kernfs_remove_by_name_ns
> > in order to provide a way to remove such symlinks.
> > 
> > Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
> 
> Hmmm... is this *really* necessary?  If linking from the parent kobj
> doesn't make a fundamental functional difference, I don't think this
> is a good idea.  If linking to the parent doesn't work, why doesn't
> it?  Shouldn't that already be a different kobj then?  I'd really like
> to keep groups as a dumb container of simple attrs.

TPM is undergoing a migration of core attributes from the
platform_device to the core's struct device.

The only purpose of the symlink was to provide userspace
compatability with the old location.

Jason
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