matplotlib · tomspur · Jun 26, 2015 · Jul 3, 2015 · Dec 5, 2016 · Apr 2, 2018
diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py
@@ -2088,9 +2088,6 @@ def tight_layout(self, renderer=None, pad=1.08, h_pad=None, w_pad=None,
             get_renderer, get_subplotspec_list, get_tight_layout_figure)
 
         subplotspec_list = get_subplotspec_list(self.axes)
-        if None in subplotspec_list:
-            warnings.warn("This figure includes Axes that are not compatible "
-                          "with tight_layout, so results might be incorrect.")
 
         if renderer is None:
             renderer = get_renderer(self)

diff --git a/lib/matplotlib/gridspec.py b/lib/matplotlib/gridspec.py
@@ -303,11 +303,8 @@ def tight_layout(self, figure, renderer=None,
             fit into.  Default is (0, 0, 1, 1).
         """
 
-        subplotspec_list = tight_layout.get_subplotspec_list(
-            figure.axes, grid_spec=self)
-        if None in subplotspec_list:
-            warnings.warn("This figure includes Axes that are not compatible "
-                          "with tight_layout, so results might be incorrect.")
+        subplotspec_list = tight_layout.get_subplotspec_list(figure.axes,
+                                                             grid_spec=self)
 
         if renderer is None:
             renderer = tight_layout.get_renderer(figure)

diff --git a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout_colorbar1.pdf b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout_colorbar1.pdf
diff --git a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout_colorbar1.png b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout_colorbar1.png