From 5fa8b4225bec1fde0862a2d19964429662841384 Mon Sep 17 00:00:00 2001 From: Daniel Lezcano Date: Tue, 26 May 2026 16:08:05 +0200 Subject: [PATCH] thermal/core: Make cooling device OF node conditional on CONFIG_THERMAL_OF The device node pointer stored in struct thermal_cooling_device is only used by the OF-specific thermal code to associate cooling devices with thermal zones defined in device tree. Now that OF and non-OF registration paths are separated and non-OF users no longer rely on devm_thermal_of_cooling_device_register() with a NULL device node, the np field is no longer required for non-OF configurations. Make this field conditional on CONFIG_THERMAL_OF to reduce memory footprint and better reflect its usage. Signed-off-by: Daniel Lezcano Signed-off-by: Daniel Lezcano Acked-by: Rafael J. Wysocki (Intel) Reviewed-by: Lukasz Luba Link: https://patch.msgid.link/20260526140802.1059293-16-daniel.lezcano@oss.qualcomm.com --- include/linux/thermal.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 3e663267a19d..6d1862ac187f 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -125,7 +125,6 @@ struct thermal_cooling_device { const char *type; unsigned long max_state; struct device device; - struct device_node *np; void *devdata; void *stats; const struct thermal_cooling_device_ops *ops; @@ -133,6 +132,9 @@ struct thermal_cooling_device { struct mutex lock; /* protect thermal_instances list */ struct list_head thermal_instances; struct list_head node; +#ifdef CONFIG_THERMAL_OF + struct device_node *np; +#endif #ifdef CONFIG_THERMAL_DEBUGFS struct thermal_debugfs *debugfs; #endif