This compilation unit uses udelay() function without including it's header file. Fix that to break dependency on other code. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx> Cc: Jani Nikula <jani.nikula@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_vga.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/display/intel_vga.c b/drivers/gpu/drm/i915/display/intel_vga.c index 4b98833bfa8c..0b5916c15307 100644 --- a/drivers/gpu/drm/i915/display/intel_vga.c +++ b/drivers/gpu/drm/i915/display/intel_vga.c @@ -3,6 +3,7 @@ * Copyright © 2019 Intel Corporation */ +#include <linux/delay.h> #include <linux/vgaarb.h> #include <video/vga.h> -- 2.43.0