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Message-ID: <CANA+-vBOQM=XXQx93o4ZPs7yaWyyAeHPds1NQbo5zYGGqVitMg@mail.gmail.com>
Date: Thu, 27 Jun 2019 15:57:06 -0700
From: Tri Vo <trong@...roid.com>
To: Greg KH <gregkh@...uxfoundation.org>
Cc: "Rafael J. Wysocki" <rjw@...ysocki.net>,
Viresh Kumar <viresh.kumar@...aro.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Hridya Valsaraju <hridya@...gle.com>,
Sandeep Patil <sspatil@...gle.com>,
LKML <linux-kernel@...r.kernel.org>,
Linux PM <linux-pm@...r.kernel.org>,
"Cc: Android Kernel" <kernel-team@...roid.com>
Subject: Re: [PATCH] PM / wakeup: show wakeup sources stats in sysfs
On Wed, Jun 26, 2019 at 5:04 PM Greg KH <gregkh@...uxfoundation.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@...roid.com> wrote:
> > >
> > > On Tue, Jun 25, 2019 at 6:12 PM Greg KH <gregkh@...uxfoundation.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.
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