Subject: Re: [net-next v4 11/12] ASoC: SOF: Create client driver for IPC test

From: Greg KH <[email-masked]>
Date: Wed, 20 May 2020 09:22:29 +0200

On Wed, May 20, 2020 at 12:02:26AM -0700, Jeff Kirsher wrote:
> From: Ranjani Sridharan <[email-masked]>
> 
> Create an SOF client driver for IPC flood test. This
> driver is used to set up the debugfs entries and the
> read/write ops for initiating the IPC flood test that
> would be used to measure the min/max/avg response times
> for sending IPCs to the DSP.

No form of documentation for what these debugfs files are for?  I know
you don't normally have to do this, but all you are doing here is
creating a "test" driver, with testing interfaces from userspace to the
kernel.  So how is anyone supposed to know how to use them?

These are complex debugfs files you are writing to, so a bit of a hint
as to what they are going to be doing would be nice, don't you think?

thanks,

greg k-h