Re: [PATCH v1 2/3] thermal/debugfs: Pass cooling device state to thermal_debug_cdev_add()

From: Rafael J. Wysocki
Date: Thu Apr 25 2024 - 09:00:29 EST


On Thu, Apr 25, 2024 at 2:36 PM Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote:
>
> Hi Lukasz,
>
> On Thu, Apr 25, 2024 at 12:02 PM Lukasz Luba <lukasz.luba@xxxxxxx> wrote:
> >
> > Hi Rafael,
> >
> > On 4/23/24 19:00, Rafael J. Wysocki wrote:
> > > From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> > >
> > > If cdev_dt_seq_show() runs before the first state transition of a cooling
> > > device, it will not print any state residency information for it, even
> > > though it might be reasonably expected to print residency information for
> > > the initial state of the cooling device.
> > >
> > > For this reason, rearrange the code to get the initial state of a cooling
> > > device at the registration time and pass it to thermal_debug_cdev_add(),
> > > so that the latter can create a duration record for that state which will
> > > allow cdev_dt_seq_show() to print its residency information.
> > >
> > > Fixes: 755113d76786 ("thermal/debugfs: Add thermal cooling device debugfs information")
> > > Reported-by: Lukasz Luba <lukasz.luba@xxxxxxx>
> > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> > > ---
> > > drivers/thermal/thermal_core.c | 9 +++++++--
> > > drivers/thermal/thermal_debugfs.c | 12 ++++++++++--
> > > drivers/thermal/thermal_debugfs.h | 4 ++--
> > > 3 files changed, 19 insertions(+), 6 deletions(-)
> > >
> >
> > I'm trying to test it on my board and do the review, but faced issue.
> > For some reason I couldn't apply that patch on the latest bleeding-edge
> > branch.
> > Could you help me in this please? Is there something missing in the
> > patch set (like one more fist patch)?
>
> I messed up the ordering of patches (patch [2/3] should be the last
> one in the series) and on top of that, you'll need a small rebase on
> that patch.
>
> Sorry about this, I'll send a v2.

Actually, the ordering was OK, but the rebase of the second patch is
still needed. I'll send a v2.