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drm/i915: fix intel_backlight_device_register declaration 

commit ac29fc6685 upstream.

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: 1ebaa0b9c2 ("drm/i915: Move backlight registration to connector registration")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20171127151239.1813673-1-arnd@arndb.de
(cherry picked from commit 2de2d0b063)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2017-11-27 16:10:27 +01:00 committed by Greg Kroah-Hartman
parent 68a2a52047
commit fc4cb30f2c
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_drv.h
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@ -1708,7 +1708,7 @@ 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);
#else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
static int intel_backlight_device_register(struct intel_connector *connector)
static inline int intel_backlight_device_register(struct intel_connector *connector)
{
return 0;
}