linux-kernel - Re: [PATCH v9 10/17] PCI: endpoint: Allow user to create sub-directory of 'EPF Device' directory

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Date:   Tue, 19 Jan 2021 19:38:14 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     Kishon Vijay Abraham I <kishon@...com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jonathan Corbet <corbet@....net>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Arnd Bergmann <arnd@...db.de>, Jon Mason <jdmason@...zu.us>,
        Dave Jiang <dave.jiang@...el.com>,
        Allen Hubbe <allenbh@...il.com>,
        Tom Joseph <tjoseph@...ence.com>,
        Rob Herring <robh@...nel.org>, linux-pci@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-ntb@...glegroups.com
Subject: Re: [PATCH v9 10/17] PCI: endpoint: Allow user to create
 sub-directory of 'EPF Device' directory

On Tue, Jan 19, 2021 at 12:34:05PM -0600, Bjorn Helgaas wrote:
> [cc->to Greg]
> 
> On Mon, Jan 04, 2021 at 08:59:02PM +0530, Kishon Vijay Abraham I wrote:
> > Documentation/PCI/endpoint/pci-endpoint-cfs.rst explains how a user
> > has to create a directory in-order to create a 'EPF Device' that
> > can be configured/probed by 'EPF Driver'.
> > 
> > Allow user to create a sub-directory of 'EPF Device' directory for
> > any function specific attributes that has to be exposed to the user.
> 
> Maybe add an example sysfs path in the commit log?
> 
> Seems like there's restriction on hierarchy depth in sysfs, but I
> don't remember the details.  Moved Greg to "to" in case he wants to
> comment.

This is configfs, not sysfs, so I really do not know, sorry.

greg k-h