[PATCH] thermal/drivers/imx9: Constify struct thermal_zone_device_ops

From: Christophe JAILLET

Date: Sat Aug 08 2026 - 16:27:09 EST


'struct thermal_zone_device_ops' is not modified in this driver.

Constifying this structure moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.

On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
8567 2144 0 10711 29d7 drivers/thermal/imx91_thermal.o

After:
=====
text data bss dec hex filename
8695 2016 0 10711 29d7 drivers/thermal/imx91_thermal.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
Compile tested only.
---
drivers/thermal/imx91_thermal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/imx91_thermal.c b/drivers/thermal/imx91_thermal.c
index 25915bb702be..892a25440e06 100644
--- a/drivers/thermal/imx91_thermal.c
+++ b/drivers/thermal/imx91_thermal.c
@@ -225,7 +225,7 @@ static int imx91_tmu_change_mode(struct thermal_zone_device *tz, enum thermal_de
return 0;
}

-static struct thermal_zone_device_ops tmu_tz_ops = {
+static const struct thermal_zone_device_ops tmu_tz_ops = {
.get_temp = imx91_tmu_get_temp,
.change_mode = imx91_tmu_change_mode,
.set_trips = imx91_tmu_set_trips,
--
2.55.0