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Date: Fri, 21 Nov 2014 17:52:06 -0800
From: Florian Fainelli <f.fainelli@...il.com>
To: linux-kernel@...r.kernel.org
CC: linux-pm@...r.kernel.org, edubezval@...il.com, rui.zhang@...el.com,
computersforpeace@...il.com
Subject: Re: [PATCH v2] thermal: provide an UAPI header file
On 11/20/2014 08:32 AM, Florian Fainelli wrote:
> include/linux/thermal.h contains definitions for the Thermal generic
> netlink family, but none of the valuable information relevant to
> user-space such as the Genl family name, multicast group, version or
> command set and data types is exported to user-space.
>
> Export all the relevant generic netlink information to user-space to
> make this genl family usable by user-space, and while at it, export
> THERMAL_NAME_LENGTH since it limits name length for thermal_hwmon
> devices.
>
> Kbuild and MAINTAINERS are also updated accordingly to reflect this new
> file: include/uapi/linux/thermal.h.
I forgot to include the definition for the thermal_event structure which
is multi-casted through netlink, will resubmit with that.
>
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
> ---
> Changes in v2:
> - rebase against Eduardo's thermal/next tree
>
> MAINTAINERS | 1 +
> include/linux/thermal.h | 31 +------------------------------
> include/uapi/linux/Kbuild | 1 +
> include/uapi/linux/thermal.h | 35 +++++++++++++++++++++++++++++++++++
> 4 files changed, 38 insertions(+), 30 deletions(-)
> create mode 100644 include/uapi/linux/thermal.h
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index c444907ccd69..790752a4fad2 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9294,6 +9294,7 @@ Q: https://patchwork.kernel.org/project/linux-pm/list/
> S: Supported
> F: drivers/thermal/
> F: include/linux/thermal.h
> +F: include/uapi/linux/thermal.h
> F: include/linux/cpu_cooling.h
> F: Documentation/devicetree/bindings/thermal/
>
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index 5bc28a70014e..be959e9df06c 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -29,10 +29,10 @@
> #include <linux/idr.h>
> #include <linux/device.h>
> #include <linux/workqueue.h>
> +#include <uapi/linux/thermal.h>
>
> #define THERMAL_TRIPS_NONE -1
> #define THERMAL_MAX_TRIPS 12
> -#define THERMAL_NAME_LENGTH 20
>
> /* invalid cooling state */
> #define THERMAL_CSTATE_INVALID -1UL
> @@ -49,11 +49,6 @@
> #define MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, off) (((t) / 100) + (off))
> #define MILLICELSIUS_TO_DECI_KELVIN(t) MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, 2732)
>
> -/* Adding event notification support elements */
> -#define THERMAL_GENL_FAMILY_NAME "thermal_event"
> -#define THERMAL_GENL_VERSION 0x01
> -#define THERMAL_GENL_MCAST_GROUP_NAME "thermal_mc_grp"
> -
> /* Default Thermal Governor */
> #if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE)
> #define DEFAULT_THERMAL_GOVERNOR "step_wise"
> @@ -86,30 +81,6 @@ enum thermal_trend {
> THERMAL_TREND_DROP_FULL, /* apply lowest cooling action */
> };
>
> -/* Events supported by Thermal Netlink */
> -enum events {
> - THERMAL_AUX0,
> - THERMAL_AUX1,
> - THERMAL_CRITICAL,
> - THERMAL_DEV_FAULT,
> -};
> -
> -/* attributes of thermal_genl_family */
> -enum {
> - THERMAL_GENL_ATTR_UNSPEC,
> - THERMAL_GENL_ATTR_EVENT,
> - __THERMAL_GENL_ATTR_MAX,
> -};
> -#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
> -
> -/* commands supported by the thermal_genl_family */
> -enum {
> - THERMAL_GENL_CMD_UNSPEC,
> - THERMAL_GENL_CMD_EVENT,
> - __THERMAL_GENL_CMD_MAX,
> -};
> -#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
> -
> struct thermal_zone_device_ops {
> int (*bind) (struct thermal_zone_device *,
> struct thermal_cooling_device *);
> diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
> index 4c94f31a8c99..a1943e2d1264 100644
> --- a/include/uapi/linux/Kbuild
> +++ b/include/uapi/linux/Kbuild
> @@ -383,6 +383,7 @@ header-y += tcp.h
> header-y += tcp_metrics.h
> header-y += telephony.h
> header-y += termios.h
> +header-y += thermal.h
> header-y += time.h
> header-y += times.h
> header-y += timex.h
> diff --git a/include/uapi/linux/thermal.h b/include/uapi/linux/thermal.h
> new file mode 100644
> index 000000000000..ac5535855982
> --- /dev/null
> +++ b/include/uapi/linux/thermal.h
> @@ -0,0 +1,35 @@
> +#ifndef _UAPI_LINUX_THERMAL_H
> +#define _UAPI_LINUX_THERMAL_H
> +
> +#define THERMAL_NAME_LENGTH 20
> +
> +/* Adding event notification support elements */
> +#define THERMAL_GENL_FAMILY_NAME "thermal_event"
> +#define THERMAL_GENL_VERSION 0x01
> +#define THERMAL_GENL_MCAST_GROUP_NAME "thermal_mc_grp"
> +
> +/* Events supported by Thermal Netlink */
> +enum events {
> + THERMAL_AUX0,
> + THERMAL_AUX1,
> + THERMAL_CRITICAL,
> + THERMAL_DEV_FAULT,
> +};
> +
> +/* attributes of thermal_genl_family */
> +enum {
> + THERMAL_GENL_ATTR_UNSPEC,
> + THERMAL_GENL_ATTR_EVENT,
> + __THERMAL_GENL_ATTR_MAX,
> +};
> +#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
> +
> +/* commands supported by the thermal_genl_family */
> +enum {
> + THERMAL_GENL_CMD_UNSPEC,
> + THERMAL_GENL_CMD_EVENT,
> + __THERMAL_GENL_CMD_MAX,
> +};
> +#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
> +
> +#endif /* _UAPI_LINUX_THERMAL_H */
>
--
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