netdev - [PATCH 0/2] Stop monitoring disabled devices

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Date:   Mon, 20 Apr 2020 20:17:39 +0200
From:   Andrzej Pietrasiewicz <andrzej.p@...labora.com>
To:     linux-pm@...r.kernel.org
Cc:     Zhang Rui <rui.zhang@...el.com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>, Jiri Pirko <jiri@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>,
        "David S . Miller" <davem@...emloft.net>,
        Peter Kaestle <peter@...e.net>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Support Opensource <support.opensource@...semi.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Heiko Stuebner <heiko@...ech.de>,
        Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang7@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        linux-acpi@...r.kernel.org, netdev@...r.kernel.org,
        platform-driver-x86@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kernel@...labora.com,
        Andrzej Pietrasiewicz <andrzej.p@...labora.com>,
        Barlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: [PATCH 0/2] Stop monitoring disabled devices

After 3 revisions of an RFC I'm sending this as a PATCH series.

The first patch makes all the drivers store their mode in struct
thermal_zone_device. Such a move has consequences: driver-specific
variables for storing mode are not necessary. Consequently get_mode()
methods become obsolete. Then sysfs "mode" attribute stops depending
on get_mode() being provided, because it is always provided from now on.

The first patch also introduces the initial mode to be optionally passed
to thermal_zone_device_register().

Given all the groundwork done in patch 1/2 patch 2/2 becomes very simple.

Compared to RFC v3 this series addresses comments from Bartlomiej,
thank you Bartlomiej for your review!

RFCv3..this PATCH:

- export thermal_zone_device_{enable|disable}() for drivers
- don't check provided enum values in acpi's thermal_zet_mode()
and in int3400_thermal_set_mode()
- use thermal_zone_device_enable() in of_thermal instead of open coding it
- use thermal_zone_device_{enable|disable}() in hisi_thermal, rockchip_thermal
and sprd_thermal
- assume THERMAL_DEVICE_ENABLED is thermal_zone_params not provided at
tzd's register time
- eliminated tzp-s which contain only .initial_mode = THERMAL_DEVICE_ENABLED,
- don't set tz->need_update and don't call thermal_zone_device_update()
at the end of thermal_zone_device_register()
- used .initial_mode in int340x_thermal_zone, x86_pkg_temp_thermal and
int3400_thermal

Andrzej Pietrasiewicz (2):
  thermal: core: Let thermal zone device's mode be stored in its struct
  thermal: core: Stop polling DISABLED thermal devices

 drivers/acpi/thermal.c                        | 35 ++--------
 .../ethernet/mellanox/mlxsw/core_thermal.c    | 42 ------------
 drivers/platform/x86/acerhdf.c                | 17 +----
 drivers/thermal/da9062-thermal.c              | 11 ----
 drivers/thermal/hisi_thermal.c                |  6 +-
 drivers/thermal/imx_thermal.c                 | 24 ++-----
 .../intel/int340x_thermal/int3400_thermal.c   | 31 ++-------
 .../int340x_thermal/int340x_thermal_zone.c    |  1 +
 .../thermal/intel/intel_quark_dts_thermal.c   | 22 ++-----
 drivers/thermal/intel/x86_pkg_temp_thermal.c  |  1 +
 drivers/thermal/of-thermal.c                  | 24 +------
 drivers/thermal/rockchip_thermal.c            |  6 +-
 drivers/thermal/sprd_thermal.c                |  6 +-
 drivers/thermal/thermal_core.c                | 65 ++++++++++++++++---
 drivers/thermal/thermal_core.h                |  3 +
 drivers/thermal/thermal_sysfs.c               | 29 +--------
 include/linux/thermal.h                       | 22 ++++++-
 17 files changed, 121 insertions(+), 224 deletions(-)


base-commit: 79799562bf087b30d9dd0fddf5bed2d3b038be08
-- 
2.17.1