Re: [PATCH] PM / wakeup: show wakeup sources stats in sysfs

Tri Vo
2019-06-27T22:57:19Z

On Wed, Jun 26, 2019 at 5:04 PM Greg KH <gregkh@linuxfoundation.org> wrote:
>
> On Wed, Jun 26, 2019 at 03:48:58PM -0700, Tri Vo wrote:
> > On Tue, Jun 25, 2019 at 6:33 PM Tri Vo <trong@android.com> wrote:
> > >
> > > On Tue, Jun 25, 2019 at 6:12 PM Greg KH <gregkh@linuxfoundation.org> wrote:
> > > >
> > > > On Tue, Jun 25, 2019 at 05:54:49PM -0700, Tri Vo wrote:
> > > > > Embedding a struct kobject into struct wakeup_source changes lifetime
> > > > > requirements on the latter. To that end, change deallocation of struct
> > > > > wakeup_source using kfree to kobject_put().
> > > >
> > > > Ick, are you sure you need a new kobject here? Why wouldn't a named
> > > > attribute group work instead? That should keep this patch much smaller
> > > > and simpler.
> > >
> > > Yeah, named attribute groups might be a much cleaner way to do this.
> > > Let me investigate.
> >
> > Say, we read /sys/power/wakeup_sources/foo/active_count.
>
> What is "foo" here? You didn't include Documentation of the sysfs
> files so it was pretty impossible to say what exactly your heirachy was
> going to be in order to determine this :)

Sorry about that. I sent out a new version of the patch with updated
documentation.