dnl #
dnl # commit 1d2ac403ae3bfde7c50328ee0d39d3fb3d8d9823
dnl # drm: Protect dev->filelist with its own mutex
dnl #
AC_DEFUN([AC_AMDGPU_DRM_DEVICE_FILELIST_MUTEX],
	[AC_MSG_CHECKING([whether drm_device->filelist_mutex is available])
	AC_KERNEL_TRY_COMPILE([
		#include <drm/drm_device.h>
	],[
		struct drm_device *ddev;
		ddev->filelist_mutex = ddev->filelist_mutex;
	],[
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_DRM_DEVICE_FILELIST_MUTEX, 1, [drm_device->filelist_mutex is available])
	],[
		AC_MSG_RESULT(no)
	])
])