linux-kernel - Re: thermal: thermal_mmio: Constify static struct thermal_mmio

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Date:   Wed, 22 Sep 2021 14:01:26 +0300
From:   "Shenhar, Talel" <talel@...zon.com>
To:     Rikard Falkeborn <rikard.falkeborn@...il.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>
CC:     Zhang Rui <rui.zhang@...el.com>, Amit Kucheria <amitk@...nel.org>,
        Ronen Krupnik <ronenk@...zon.com>,
        <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>
Subject: Re: thermal: thermal_mmio: Constify static struct thermal_mmio_ops

The only usage of thermal_mmio_ops is to pass its address to
> devm_thermal_zone_of_sensor_register(), which has a pointer to const
> struct thermal_zone_of_device_ops as argument. Make it const to allow
> the compiler to put it in read-only memory.
>
> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
Acked-by: Talel Shenhar <talel@...zon.com>
> ---
>   drivers/thermal/thermal_mmio.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/thermal/thermal_mmio.c b/drivers/thermal/thermal_mmio.c
> index ded1dd0d4ef7..360b0dfdc3b0 100644
> --- a/drivers/thermal/thermal_mmio.c
> +++ b/drivers/thermal/thermal_mmio.c
> @@ -34,7 +34,7 @@ static int thermal_mmio_get_temperature(void *private, int *temp)
>          return 0;
>   }
>
> -static struct thermal_zone_of_device_ops thermal_mmio_ops = {
> +static const struct thermal_zone_of_device_ops thermal_mmio_ops = {
>          .get_temp = thermal_mmio_get_temperature,
>   };
>
> --
> 2.33.0
>