From: "Peter Kästle" <peter@piie.net>
To: "Daniel Lezcano" <daniel.lezcano@linaro.org>, rafael@kernel.org
Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
"Hans de Goede" <hdegoede@redhat.com>,
"Mark Gross" <markgross@kernel.org>,
platform-driver-x86@vger.kernel.org
Subject: Re: [PATCH v1 15/17] thermal/drivers/acerhdf: Make interval setting only at module load time
Date: Sun, 19 Feb 2023 21:38:02 +0000 [thread overview]
Message-ID: <4302bb253fb733b675dbf18d1c2bcd15@piie.net> (raw)
In-Reply-To: <20230219143657.241542-16-daniel.lezcano@linaro.org>
19. Februar 2023 15:38, "Daniel Lezcano" <daniel.lezcano@linaro.org> schrieb:
> The thermal zone device structure is in the process of being private
> to the thermal framework core code. This driver is directly accessing
> and changing the monitoring polling rate.
>
> After discussing with the maintainers of this driver, having the
> polling interval at module loading time is enough for their purpose.
>
> Change the code to take into account the interval when the module is
> loaded but restrict the permissions so the value can not be changed
> afterwards.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Peter Kaestle <peter@piie.net>
> ---
> drivers/platform/x86/acerhdf.c | 12 +++---------
> 1 file changed, 3 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 1956469c3457..61f1c3090867 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -79,7 +79,6 @@ static unsigned int list_supported;
> static unsigned int fanstate = ACERHDF_FAN_AUTO;
> static char force_bios[16];
> static char force_product[16];
> -static unsigned int prev_interval;
> static struct thermal_zone_device *thz_dev;
> static struct thermal_cooling_device *cl_dev;
> static struct platform_device *acerhdf_dev;
> @@ -346,20 +345,15 @@ static void acerhdf_check_param(struct thermal_zone_device *thermal)
> trips[0].temperature = fanon;
> trips[0].hysteresis = fanon - fanoff;
>
> - if (kernelmode && prev_interval != interval) {
> + if (kernelmode) {
> if (interval > ACERHDF_MAX_INTERVAL) {
> pr_err("interval too high, set to %d\n",
> ACERHDF_MAX_INTERVAL);
> interval = ACERHDF_MAX_INTERVAL;
> }
> +
> if (verbose)
> pr_notice("interval changed to: %d\n", interval);
> -
> - if (thermal)
> - thermal->polling_delay_jiffies =
> - round_jiffies(msecs_to_jiffies(interval * 1000));
> -
> - prev_interval = interval;
> }
> }
>
> @@ -807,5 +801,5 @@ static const struct kernel_param_ops interval_ops = {
> .get = param_get_uint,
> };
>
> -module_param_cb(interval, &interval_ops, &interval, 0600);
> +module_param_cb(interval, &interval_ops, &interval, 0000);
> MODULE_PARM_DESC(interval, "Polling interval of temperature check");
> --
> 2.34.1
prev parent reply other threads:[~2023-02-19 21:38 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-19 14:36 [PATCH v1 00/17] Self-encapsulate the thermal zone device structure Daniel Lezcano
2023-02-19 14:36 ` [PATCH v1 01/17] thermal/core: Add a thermal zone 'devdata' accessor Daniel Lezcano
2023-02-19 14:56 ` Guenter Roeck
2023-02-19 15:07 ` Niklas Söderlund
2023-02-19 17:07 ` Daniel Lezcano
2023-02-19 18:23 ` Niklas Söderlund
2023-02-19 16:23 ` kernel test robot
2023-02-19 22:34 ` Mark Brown
2023-02-20 8:20 ` Ido Schimmel
2023-02-20 9:09 ` AngeloGioacchino Del Regno
2023-02-20 10:34 ` Balsam CHIHI
2023-02-20 10:37 ` Greenman, Gregory
2023-02-20 11:03 ` DLG Adam Ward
2023-02-20 12:18 ` Geert Uytterhoeven
2023-02-20 14:48 ` DLG Adam Ward
2023-02-20 11:13 ` Baolin Wang
2023-02-20 13:23 ` Sebastian Reichel
2023-02-19 14:36 ` [PATCH v1 02/17] thermal/core: Show a debug message when get_temp() fails Daniel Lezcano
2023-02-19 14:36 ` [PATCH v1 03/17] thermal: Remove debug or error messages in get_temp() ops Daniel Lezcano
2023-02-20 8:58 ` Miquel Raynal
2023-02-19 14:36 ` [PATCH v1 04/17] thermal/hwmon: Do not set no_hwmon before calling thermal_add_hwmon_sysfs() Daniel Lezcano
2023-02-19 15:08 ` Niklas Söderlund
2023-02-19 14:36 ` [PATCH v1 05/17] thermal/hwmon: Use the right device for devm_thermal_add_hwmon_sysfs() Daniel Lezcano
2023-02-19 17:26 ` Martin Blumenstingl
2023-02-19 14:36 ` [PATCH v1 06/17] thermal: Don't use 'device' internal thermal zone structure field Daniel Lezcano
2023-02-20 10:50 ` Balsam CHIHI
2023-02-19 14:36 ` [PATCH v1 07/17] thermal/hwmon: Use the thermal API instead tampering the internals Daniel Lezcano
2023-02-20 13:34 ` Daniel Lezcano
2023-02-20 14:11 ` Guenter Roeck
2023-02-20 15:39 ` Daniel Lezcano
2023-02-20 17:12 ` Guenter Roeck
2023-02-21 16:08 ` Daniel Lezcano
2023-02-19 14:36 ` [PATCH v1 08/17] thermal/drivers/spear: Don't use tz->device but pdev->dev Daniel Lezcano
2023-02-19 14:36 ` [PATCH v1 09/17] thermal: Add a thermal zone id accessor Daniel Lezcano
2023-02-19 14:55 ` Guenter Roeck
2023-02-19 17:15 ` kernel test robot
2023-02-19 14:36 ` [PATCH v1 10/17] thermal: Do not access 'type' field, use the tz id instead Daniel Lezcano
2023-02-20 8:22 ` Ido Schimmel
2023-02-19 14:36 ` [PATCH v1 11/17] thermal/drivers/da9062: Don't access the thermal zone device fields Daniel Lezcano
2023-02-19 14:36 ` [PATCH v1 12/17] thermal/hwmon: Use the thermal_core.h header Daniel Lezcano
2023-02-19 14:36 ` [PATCH v1 13/17] thermal/drivers/tegra: Remove unneeded lock when setting a trip point Daniel Lezcano
2023-02-19 14:36 ` [PATCH v1 14/17] thermal/tegra: Do not enable the thermal zone, it is already enabled Daniel Lezcano
2023-02-19 14:36 ` [PATCH v1 15/17] thermal/drivers/acerhdf: Make interval setting only at module load time Daniel Lezcano
2023-02-19 14:36 ` [PATCH v1 16/17] thermal/drivers/acerhdf: Remove pointless governor test Daniel Lezcano
2023-02-19 14:36 ` [PATCH v1 17/17] thermal/traces: Replace the thermal zone structure parameter with the field value Daniel Lezcano
2023-02-19 21:35 ` [PATCH v1 16/17] thermal/drivers/acerhdf: Remove pointless governor test Peter Kästle
2023-02-19 21:38 ` Peter Kästle [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4302bb253fb733b675dbf18d1c2bcd15@piie.net \
--to=peter@piie.net \
--cc=daniel.lezcano@linaro.org \
--cc=hdegoede@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=markgross@kernel.org \
--cc=platform-driver-x86@vger.kernel.org \
--cc=rafael@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).