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Subject[PATCH 1/2] drm/i915: fix intel_backlight_device_register declaration
The alternative intel_backlight_device_register() definition apparently
never got used, but I have now run into a case of i915 being compiled
without CONFIG_BACKLIGHT_CLASS_DEVICE, resulting in a number of
identical warnings:

drivers/gpu/drm/i915/intel_drv.h:1739:12: error: 'intel_backlight_device_register' defined but not used [-Werror=unused-function]

This marks the function as 'inline', which was surely the original
intention here.

Fixes: 1ebaa0b9c2d4 ("drm/i915: Move backlight registration to connector registration")
Signed-off-by: Arnd Bergmann <>
drivers/gpu/drm/i915/intel_drv.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 7bc60c848940..6c7f8bca574e 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1736,7 +1736,7 @@ extern struct drm_display_mode *intel_find_panel_downclock(
int intel_backlight_device_register(struct intel_connector *connector);
void intel_backlight_device_unregister(struct intel_connector *connector);
-static int intel_backlight_device_register(struct intel_connector *connector)
+static inline int intel_backlight_device_register(struct intel_connector *connector)
return 0;
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