diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c b/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c
index b292379..e452769 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c
@@ -186,7 +186,7 @@ nouveau_therm_fan_user_set(struct nouveau_therm *therm, int percent)
 	return nouveau_therm_fan_set(therm, percent);
 }
 
-void
+static void
 nouveau_therm_fan_set_defaults(struct nouveau_therm *therm)
 {
 	struct nouveau_therm_priv *priv = (void *)therm;
@@ -211,7 +211,7 @@ nouveau_therm_fan_safety_checks(struct nouveau_therm *therm)
 		priv->bios_fan.min_duty = priv->bios_fan.max_duty;
 }
 
-int nouveau_fan_pwm_clock_dummy(struct nouveau_therm *therm)
+static int nouveau_fan_pwm_clock_dummy(struct nouveau_therm *therm)
 {
 	return 1;
 }
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nv40.c
index fcf2cfe..1fc3b26 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/therm/nv40.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/therm/nv40.c
@@ -75,7 +75,7 @@ nv40_temp_get(struct nouveau_therm *therm)
 	return core_temp;
 }
 
-int
+static int
 nv40_fan_pwm_get(struct nouveau_therm *therm, int line, u32 *divs, u32 *duty)
 {
 	if (line == 2) {
@@ -101,7 +101,7 @@ nv40_fan_pwm_get(struct nouveau_therm *therm, int line, u32 *divs, u32 *duty)
 	return -EINVAL;
 }
 
-int
+static int
 nv40_fan_pwm_set(struct nouveau_therm *therm, int line, u32 divs, u32 duty)
 {
 	if (line == 2) {
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c
index 6f97de2..ad6cde0 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c
@@ -50,7 +50,7 @@ pwm_info(struct nouveau_therm *therm, int *line, int *ctrl, int *indx)
 	return 0;
 }
 
-int
+static int
 nv50_fan_pwm_get(struct nouveau_therm *therm, int line, u32 *divs, u32 *duty)
 {
 	int ctrl, id, ret = pwm_info(therm, &line, &ctrl, &id);
@@ -66,7 +66,7 @@ nv50_fan_pwm_get(struct nouveau_therm *therm, int line, u32 *divs, u32 *duty)
 	return -EINVAL;
 }
 
-int
+static int
 nv50_fan_pwm_set(struct nouveau_therm *therm, int line, u32 divs, u32 duty)
 {
 	int ctrl, id, ret = pwm_info(therm, &line, &ctrl, &id);
@@ -79,7 +79,7 @@ nv50_fan_pwm_set(struct nouveau_therm *therm, int line, u32 divs, u32 duty)
 	return 0;
 }
 
-int
+static int
 nv50_fan_pwm_clock(struct nouveau_therm *therm)
 {
 	int chipset = nv_device(therm)->chipset;
@@ -105,7 +105,7 @@ nv50_fan_pwm_clock(struct nouveau_therm *therm)
 	return pwm_clock;
 }
 
-int
+static int
 nv50_temp_get(struct nouveau_therm *therm)
 {
 	return nv_rd32(therm, 0x20400);