diff mbox series

[09/13] of: overlay: unittest: Add test for unresolved symbol

Message ID c5362f332e773f4a1a1e1cf8f333aee467508b38.1689776064.git.geert+renesas@glider.be
State Superseded
Headers show
Series [01/13] of: dynamic: Do not use "%pOF" while holding devtree_lock | expand

Commit Message

Geert Uytterhoeven July 19, 2023, 3 p.m. UTC 
Add a test to exercise the error paths when trying to apply an overlay
with an unresolved symbol and cleaning up the resulting partial state.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/of/unittest-data/Makefile               |  3 ++-
 .../unittest-data/overlay_bad_unresolved.dtso   |  7 +++++++
 drivers/of/unittest.c                           | 17 +++++++++++++++++
 3 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 drivers/of/unittest-data/overlay_bad_unresolved.dtso
diff mbox series

Patch

diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
index ea5f4da68e23acd0..f79daa1d45713958 100644
--- a/drivers/of/unittest-data/Makefile
+++ b/drivers/of/unittest-data/Makefile
@@ -32,7 +32,8 @@  obj-$(CONFIG_OF_OVERLAY) += overlay.dtbo.o \
 			    overlay_gpio_02b.dtbo.o \
 			    overlay_gpio_03.dtbo.o \
 			    overlay_gpio_04a.dtbo.o \
-			    overlay_gpio_04b.dtbo.o
+			    overlay_gpio_04b.dtbo.o \
+			    overlay_bad_unresolved.dtbo.o
 
 # enable creation of __symbols__ node
 DTC_FLAGS_overlay += -@
diff --git a/drivers/of/unittest-data/overlay_bad_unresolved.dtso b/drivers/of/unittest-data/overlay_bad_unresolved.dtso
new file mode 100644
index 0000000000000000..3b75a53ae8a492bd
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_bad_unresolved.dtso
@@ -0,0 +1,7 @@ 
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+&this_label_does_not_exist {
+	status = "ok";
+};
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 4e3d8f72f979918f..8b6f746abfec8985 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -3292,6 +3292,7 @@  OVERLAY_INFO_EXTERN(overlay_bad_add_dup_node);
 OVERLAY_INFO_EXTERN(overlay_bad_add_dup_prop);
 OVERLAY_INFO_EXTERN(overlay_bad_phandle);
 OVERLAY_INFO_EXTERN(overlay_bad_symbol);
+OVERLAY_INFO_EXTERN(overlay_bad_unresolved);
 
 /* entries found by name */
 static struct overlay_info overlays[] = {
@@ -3327,6 +3328,7 @@  static struct overlay_info overlays[] = {
 	OVERLAY_INFO(overlay_bad_add_dup_prop, -EINVAL, -ENODEV),
 	OVERLAY_INFO(overlay_bad_phandle, -EINVAL, 0),
 	OVERLAY_INFO(overlay_bad_symbol, -EINVAL, -ENODEV),
+	OVERLAY_INFO(overlay_bad_unresolved, -EINVAL, 0),
 	/* end marker */
 	{ }
 };
@@ -3730,6 +3732,21 @@  static __init void of_unittest_overlay_high_level(void)
 	EXPECT_END(KERN_ERR,
 		   "OF: changeset: remove_property failed @/testcase-data-2/substation@100/hvac-medium-2/name");
 
+	/* ---  overlay_bad_unresolved  --- */
+
+	EXPECT_BEGIN(KERN_ERR,
+		     "OF: resolver: node label 'this_label_does_not_exist' not found in live devicetree symbols table");
+	EXPECT_BEGIN(KERN_ERR,
+		     "OF: resolver: overlay phandle fixup failed: -22");
+
+	unittest(overlay_data_apply("overlay_bad_unresolved", NULL),
+		 "Adding overlay 'overlay_bad_unresolved' failed\n");
+
+	EXPECT_END(KERN_ERR,
+		   "OF: resolver: overlay phandle fixup failed: -22");
+	EXPECT_END(KERN_ERR,
+		   "OF: resolver: node label 'this_label_does_not_exist' not found in live devicetree symbols table");
+
 	return;
 
 err_unlock: