linux-kernel - Re: [PATCH v2 03/14] thermal/core: Remove duplicate information when an error occurs

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Date:   Tue, 17 May 2022 17:45:48 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Daniel Lezcano <daniel.lezcano@...exp.org>
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Kevin Hilman <khilman@...libre.com>,
        Alexandre Bailon <abailon@...libre.com>,
        Linux PM <linux-pm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>
Subject: Re: [PATCH v2 03/14] thermal/core: Remove duplicate information when
 an error occurs

On Sat, May 7, 2022 at 2:55 PM Daniel Lezcano <daniel.lezcano@...exp.org> wrote:
>
> The pr_err already tells it is an error, it is pointless to add the
> 'Error:' string in the messages. Remove them.
>
> Cc: Alexandre Bailon <abailon@...libre.com>
> Cc: Kevin Hilman <khilman@...libre.com>
> Cc; Eduardo Valentin <eduval@...zon.com>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...exp.org>
> ---
>  drivers/thermal/thermal_core.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index 1a405854748a..dc5a03d51f5c 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -1197,23 +1197,23 @@ thermal_zone_device_register(const char *type, int trips, int mask,
>         struct thermal_governor *governor;
>
>         if (!type || strlen(type) == 0) {
> -               pr_err("Error: No thermal zone type defined\n");
> +               pr_err("No thermal zone type defined\n");
>                 return ERR_PTR(-EINVAL);
>         }
>
>         if (type && strlen(type) >= THERMAL_NAME_LENGTH) {
> -               pr_err("Error: Thermal zone name (%s) too long, should be under %d chars\n",
> +               pr_err("Thermal zone name (%s) too long, should be under %d chars\n",
>                        type, THERMAL_NAME_LENGTH);
>                 return ERR_PTR(-EINVAL);
>         }
>
>         if (trips > THERMAL_MAX_TRIPS || trips < 0 || mask >> trips) {
> -               pr_err("Error: Incorrect number of thermal trips\n");
> +               pr_err("Incorrect number of thermal trips\n");
>                 return ERR_PTR(-EINVAL);
>         }
>
>         if (!ops) {
> -               pr_err("Error: Thermal zone device ops not defined\n");
> +               pr_err("Thermal zone device ops not defined\n");
>                 return ERR_PTR(-EINVAL);
>         }
>
> --

Do these need to be pr_err() messages at all?  They all seem to be
debug-type messages regarding thermal zone drivers.