From: Frank Rowand <[email protected]>
Geert reports that gpio hog nodes are not properly processed when
the gpio hog node is added via an overlay reply and provides an
RFC patch to fix the problem [1].
Add a unittest that shows the problem. Unittest will report "1 failed"
test before applying Geert's RFC patch and "0 failed" after applying
Geert's RFC patch.
I did not have a development system for which it would be easy to
experiment with applying an overlay containing a gpio hog, so I
instead created this unittest that uses a fake gpio node.
Some tests in the devicetree unittests result in printk messages
from the code being tested. It can be difficult to determine
whether the messages are the result of unittest or are potentially
reporting bugs that should be fixed. The most recent example of
a person asking whether to be concerned about these messages is [2].
Patch 2 adds annotations for all messages triggered by unittests,
except KERN_DEBUG messages. (KERN_DEBUG is a special case due to the
possible interaction of CONFIG_DYNAMIC_DEBUG.)
The annotations added in patch 2/2 add a small amount of verbosity
to the console output. I have created a proof of concept tool to
explore (1) how test harnesses could use the annotations and
(2) how to make the resulting console output easier to read and
understand as a human being. The tool 'of_unittest_expect' is
available at https://github.com/frowand/dt_tools
The format of the annotations is expected to change when unittests
are converted to use the kunit infrastructure when the broader
testing community has an opportunity to discuss the implementation
of annotations of test triggered messages.
[1] https://lore.kernel.org/linux-devicetree/[email protected]/
[2] https://lore.kernel.org/r/[email protected]
Frank Rowand (2):
of: unittest: add overlay gpio test to catch gpio hog problem
of: unittest: annotate warnings triggered by unittest
drivers/of/unittest-data/Makefile | 8 +-
drivers/of/unittest-data/overlay_gpio_01.dts | 23 +
drivers/of/unittest-data/overlay_gpio_02a.dts | 16 +
drivers/of/unittest-data/overlay_gpio_02b.dts | 16 +
drivers/of/unittest-data/overlay_gpio_03.dts | 23 +
drivers/of/unittest-data/overlay_gpio_04a.dts | 16 +
drivers/of/unittest-data/overlay_gpio_04b.dts | 16 +
drivers/of/unittest.c | 630 ++++++++++++++++++++++++--
8 files changed, 717 insertions(+), 31 deletions(-)
create mode 100644 drivers/of/unittest-data/overlay_gpio_01.dts
create mode 100644 drivers/of/unittest-data/overlay_gpio_02a.dts
create mode 100644 drivers/of/unittest-data/overlay_gpio_02b.dts
create mode 100644 drivers/of/unittest-data/overlay_gpio_03.dts
create mode 100644 drivers/of/unittest-data/overlay_gpio_04a.dts
create mode 100644 drivers/of/unittest-data/overlay_gpio_04b.dts
--
Frank Rowand <[email protected]>
From: Frank Rowand <[email protected]>
Geert reports that gpio hog nodes are not properly processed when
the gpio hog node is added via an overlay reply and provides an
RFC patch to fix the problem [1].
Add a unittest that shows the problem. Unittest will report "1 failed"
test before applying Geert's RFC patch and "0 failed" after applying
Geert's RFC patch.
[1] https://lore.kernel.org/linux-devicetree/[email protected]/
Signed-off-by: Frank Rowand <[email protected]>
---
There are checkpatch warnings.
- New files are in a directory already covered by MAINTAINERS
- The undocumented compatibles are restricted to use by unittest
and should not be documented under Documentation
- The printk() KERN_<LEVEL> warnings are false positives. The level
is supplied by a define parameter instead of a hard coded constant
- The lines over 80 characters are consistent with unittest.c style
This unittest was also valuable in that it allowed me to explore
possible issues related to the proposed solution to the gpio hog
problem.
changes since RFC:
- fixed node names in overlays
- removed unused fields from struct unittest_gpio_dev
- of_unittest_overlay_gpio() cleaned up comments
- of_unittest_overlay_gpio() moved saving global values into
probe_pass_count and chip_request_count more tightly around
test code expected to trigger changes in the global values
drivers/of/unittest-data/Makefile | 8 +-
drivers/of/unittest-data/overlay_gpio_01.dts | 23 +++
drivers/of/unittest-data/overlay_gpio_02a.dts | 16 ++
drivers/of/unittest-data/overlay_gpio_02b.dts | 16 ++
drivers/of/unittest-data/overlay_gpio_03.dts | 23 +++
drivers/of/unittest-data/overlay_gpio_04a.dts | 16 ++
drivers/of/unittest-data/overlay_gpio_04b.dts | 16 ++
drivers/of/unittest.c | 255 ++++++++++++++++++++++++++
8 files changed, 372 insertions(+), 1 deletion(-)
create mode 100644 drivers/of/unittest-data/overlay_gpio_01.dts
create mode 100644 drivers/of/unittest-data/overlay_gpio_02a.dts
create mode 100644 drivers/of/unittest-data/overlay_gpio_02b.dts
create mode 100644 drivers/of/unittest-data/overlay_gpio_03.dts
create mode 100644 drivers/of/unittest-data/overlay_gpio_04a.dts
create mode 100644 drivers/of/unittest-data/overlay_gpio_04b.dts
diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
index 9b6807065827..009f4045c8e4 100644
--- a/drivers/of/unittest-data/Makefile
+++ b/drivers/of/unittest-data/Makefile
@@ -21,7 +21,13 @@ obj-$(CONFIG_OF_OVERLAY) += overlay.dtb.o \
overlay_bad_add_dup_prop.dtb.o \
overlay_bad_phandle.dtb.o \
overlay_bad_symbol.dtb.o \
- overlay_base.dtb.o
+ overlay_base.dtb.o \
+ overlay_gpio_01.dtb.o \
+ overlay_gpio_02a.dtb.o \
+ overlay_gpio_02b.dtb.o \
+ overlay_gpio_03.dtb.o \
+ overlay_gpio_04a.dtb.o \
+ overlay_gpio_04b.dtb.o
# enable creation of __symbols__ node
DTC_FLAGS_overlay += -@
diff --git a/drivers/of/unittest-data/overlay_gpio_01.dts b/drivers/of/unittest-data/overlay_gpio_01.dts
new file mode 100644
index 000000000000..f039e8bce3b6
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_gpio_01.dts
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+&unittest_test_bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gpio_01 {
+ compatible = "unittest-gpio";
+ reg = <0>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ ngpios = <2>;
+ gpio-line-names = "line-A", "line-B";
+
+ line_b {
+ gpio-hog;
+ gpios = <2 0>;
+ input;
+ line-name = "line-B-input";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_gpio_02a.dts b/drivers/of/unittest-data/overlay_gpio_02a.dts
new file mode 100644
index 000000000000..cdafab604793
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_gpio_02a.dts
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+&unittest_test_bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gpio_02 {
+ compatible = "unittest-gpio";
+ reg = <1>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ ngpios = <2>;
+ gpio-line-names = "line-A", "line-B";
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_gpio_02b.dts b/drivers/of/unittest-data/overlay_gpio_02b.dts
new file mode 100644
index 000000000000..0cea0dccafba
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_gpio_02b.dts
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+&unittest_test_bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gpio_02 {
+ line_a {
+ gpio-hog;
+ gpios = <1 0>;
+ input;
+ line-name = "line-A-input";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_gpio_03.dts b/drivers/of/unittest-data/overlay_gpio_03.dts
new file mode 100644
index 000000000000..1d5c680fa254
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_gpio_03.dts
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+&unittest_test_bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gpio_03 {
+ compatible = "unittest-gpio";
+ reg = <0>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ ngpios = <2>;
+ gpio-line-names = "line-A", "line-B", "line-C", "line-D";
+
+ line_d {
+ gpio-hog;
+ gpios = <4 0>;
+ input;
+ line-name = "line-D-input";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_gpio_04a.dts b/drivers/of/unittest-data/overlay_gpio_04a.dts
new file mode 100644
index 000000000000..d2482cde310e
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_gpio_04a.dts
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+&unittest_test_bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gpio_04 {
+ compatible = "unittest-gpio";
+ reg = <1>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ ngpios = <2>;
+ gpio-line-names = "line-A", "line-B", "line-C", "line-D";
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_gpio_04b.dts b/drivers/of/unittest-data/overlay_gpio_04b.dts
new file mode 100644
index 000000000000..70ad05d759f9
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_gpio_04b.dts
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+&unittest_test_bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gpio_04 {
+ line_c {
+ gpio-hog;
+ gpios = <3 0>;
+ input;
+ line-name = "line-C-input";
+ };
+ };
+};
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 68b87587b2ef..b1cf9972d866 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -24,6 +24,7 @@
#include <linux/i2c.h>
#include <linux/i2c-mux.h>
+#include <linux/gpio/driver.h>
#include <linux/bitops.h>
@@ -46,6 +47,101 @@
failed; \
})
+/*
+ * Expected message may have a message level other than KERN_INFO.
+ * Print the expected message only if the current loglevel will allow
+ * the actual message to print.
+ */
+#define EXPECT_BEGIN(level, fmt, ...) \
+ printk(level pr_fmt("EXPECT \\ : ") fmt, ##__VA_ARGS__)
+
+#define EXPECT_END(level, fmt, ...) \
+ printk(level pr_fmt("EXPECT / : ") fmt, ##__VA_ARGS__)
+
+struct unittest_gpio_dev {
+ void __iomem *base;
+ struct gpio_chip chip;
+ spinlock_t gpio_lock;
+};
+
+static int unittest_gpio_chip_request_count;
+static int unittest_gpio_probe_count;
+static int unittest_gpio_probe_pass_count;
+
+static int unittest_gpio_chip_request(struct gpio_chip *chip, unsigned int offset)
+{
+ unittest_gpio_chip_request_count++;
+
+ pr_debug("%s(): %s %d %d\n", __func__, chip->label, offset,
+ unittest_gpio_chip_request_count);
+ return 0;
+}
+
+static int unittest_gpio_probe(struct platform_device *pdev)
+{
+ struct unittest_gpio_dev *devptr;
+ int ret;
+
+ unittest_gpio_probe_count++;
+
+ devptr = kzalloc(sizeof(*devptr), GFP_KERNEL);
+ if (!devptr)
+ return -ENOMEM;
+
+ spin_lock_init(&devptr->gpio_lock);
+
+ platform_set_drvdata(pdev, devptr);
+
+ devptr->chip.of_node = pdev->dev.of_node;
+ devptr->chip.label = "of-unittest-gpio";
+ devptr->chip.base = -1; /* dynamic allocation */
+ devptr->chip.ngpio = 5;
+ devptr->chip.request = unittest_gpio_chip_request;
+
+ ret = gpiochip_add_data(&devptr->chip, NULL);
+
+ unittest(!ret,
+ "gpiochip_add_data() for node @%pOF failed, ret = %d\n", devptr->chip.of_node, ret);
+
+ if (!ret)
+ unittest_gpio_probe_pass_count++;
+ return ret;
+}
+
+static int unittest_gpio_remove(struct platform_device *pdev)
+{
+ struct unittest_gpio_dev *gdev = platform_get_drvdata(pdev);
+ struct device *dev = &pdev->dev;
+ struct device_node *np = pdev->dev.of_node;
+
+ dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
+
+ if (!gdev)
+ return -EINVAL;
+
+ if (gdev->chip.base != -1)
+ gpiochip_remove(&gdev->chip);
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(pdev);
+
+ return 0;
+}
+
+static const struct of_device_id unittest_gpio_id[] = {
+ { .compatible = "unittest-gpio", },
+ {}
+};
+
+static struct platform_driver unittest_gpio_driver = {
+ .probe = unittest_gpio_probe,
+ .remove = unittest_gpio_remove,
+ .driver = {
+ .name = "unittest-gpio",
+ .of_match_table = of_match_ptr(unittest_gpio_id),
+ },
+};
+
static void __init of_unittest_find_node_by_name(void)
{
struct device_node *np;
@@ -2183,6 +2279,151 @@ static inline void of_unittest_overlay_i2c_15(void) { }
#endif
+static void __init of_unittest_overlay_gpio(void)
+{
+ int chip_request_count;
+ int probe_pass_count;
+ int ret;
+
+ /*
+ * tests: apply overlays before registering driver
+ * Similar to installing a driver as a module, the
+ * driver is registered after applying the overlays.
+ *
+ * - apply overlay_gpio_01
+ * - apply overlay_gpio_02a
+ * - apply overlay_gpio_02b
+ * - register driver
+ *
+ * register driver will result in
+ * - probe and processing gpio hog for overlay_gpio_01
+ * - probe for overlay_gpio_02a
+ * - processing gpio for overlay_gpio_02b
+ *
+ * overlay_gpio_01 contains gpio node and child gpio hog node
+ * overlay_gpio_02a contains gpio node
+ * overlay_gpio_02b contains child gpio hog node
+ *
+ * "GPIO line <<int>> (line-*-input) hogged as input"
+ * messages are the result of the gpio driver probe
+ * finding the gpio hog node.
+ */
+
+ unittest(overlay_data_apply("overlay_gpio_01", NULL),
+ "Adding overlay 'overlay_gpio_01' failed\n");
+
+ unittest(overlay_data_apply("overlay_gpio_02a", NULL),
+ "Adding overlay 'overlay_gpio_02a' failed\n");
+
+ unittest(overlay_data_apply("overlay_gpio_02b", NULL),
+ "Adding overlay 'overlay_gpio_02b' failed\n");
+
+ EXPECT_BEGIN(KERN_INFO,
+ "GPIO line <<int>> (line-B-input) hogged as input\n");
+
+ EXPECT_BEGIN(KERN_INFO,
+ "GPIO line <<int>> (line-A-input) hogged as input\n");
+
+ probe_pass_count = unittest_gpio_probe_pass_count;
+ chip_request_count = unittest_gpio_chip_request_count;
+
+ ret = platform_driver_register(&unittest_gpio_driver);
+ if (unittest(ret == 0, "could not register unittest gpio driver\n"))
+ return;
+
+ EXPECT_END(KERN_INFO,
+ "GPIO line <<int>> (line-A-input) hogged as input\n");
+ EXPECT_END(KERN_INFO,
+ "GPIO line <<int>> (line-B-input) hogged as input\n");
+
+ unittest(probe_pass_count + 2 == unittest_gpio_probe_pass_count,
+ "unittest_gpio_probe() failed or not called\n");
+
+ unittest(chip_request_count + 2 == unittest_gpio_chip_request_count,
+ "unittest_gpio_chip_request() called %d times (expected 1 time)\n",
+ unittest_gpio_chip_request_count - chip_request_count);
+
+ /*
+ * tests: apply overlays after registering driver
+ *
+ * Similar to a driver built-in to the kernel, the
+ * driver is registered before applying the overlays.
+ *
+ * - apply overlay_gpio_03
+ *
+ * apply overlay will result in
+ * - probe and processing gpio hog.
+ *
+ * overlay_gpio_03 contains gpio node and child gpio hog node
+ */
+
+ EXPECT_BEGIN(KERN_INFO,
+ "GPIO line <<int>> (line-D-input) hogged as input\n");
+
+ probe_pass_count = unittest_gpio_probe_pass_count;
+ chip_request_count = unittest_gpio_chip_request_count;
+
+ unittest(overlay_data_apply("overlay_gpio_03", NULL),
+ "Adding overlay 'overlay_gpio_03' failed\n");
+
+ EXPECT_END(KERN_INFO,
+ "GPIO line <<int>> (line-D-input) hogged as input\n");
+
+ unittest(probe_pass_count + 1 == unittest_gpio_probe_pass_count,
+ "unittest_gpio_probe() failed or not called\n");
+
+ unittest(chip_request_count + 1 == unittest_gpio_chip_request_count,
+ "unittest_gpio_chip_request() called %d times (expected 1 time)\n",
+ unittest_gpio_chip_request_count - chip_request_count);
+
+ /*
+ * tests: apply overlay containing gpio node but no gpio hog node
+ *
+ * - apply overlay_gpio_04a
+ *
+ * apply the overlay will result in
+ * - probe for overlay_gpio_04a
+ *
+ * overlay_gpio_04a contains gpio node
+ */
+
+ probe_pass_count = unittest_gpio_probe_pass_count;
+
+ /* overlay_gpio_04a contains gpio node */
+
+ unittest(overlay_data_apply("overlay_gpio_04a", NULL),
+ "Adding overlay 'overlay_gpio_04a' failed\n");
+
+ unittest(probe_pass_count + 1 == unittest_gpio_probe_pass_count,
+ "unittest_gpio_probe() failed or not called\n");
+
+ /*
+ * tests: apply overlay containing the gpio hog node
+ *
+ * - apply overlay_gpio_04b
+ *
+ * apply the overlay will result in
+ * - processing gpio for overlay_gpio_04b
+ *
+ * overlay_gpio_04b contains child gpio hog node
+ */
+
+ EXPECT_BEGIN(KERN_INFO,
+ "GPIO line <<int>> (line-C-input) hogged as input\n");
+
+ chip_request_count = unittest_gpio_chip_request_count;
+
+ unittest(overlay_data_apply("overlay_gpio_04b", NULL),
+ "Adding overlay 'overlay_gpio_04b' failed\n");
+
+ EXPECT_END(KERN_INFO,
+ "GPIO line <<int>> (line-C-input) hogged as input\n");
+
+ unittest(chip_request_count + 1 == unittest_gpio_chip_request_count,
+ "unittest_gpio_chip_request() called %d times (expected 1 time)\n",
+ unittest_gpio_chip_request_count - chip_request_count);
+}
+
static void __init of_unittest_overlay(void)
{
struct device_node *bus_np = NULL;
@@ -2242,6 +2483,8 @@ static void __init of_unittest_overlay(void)
of_unittest_overlay_i2c_cleanup();
#endif
+ of_unittest_overlay_gpio();
+
of_unittest_destroy_tracked_overlays();
out:
@@ -2295,6 +2538,12 @@ struct overlay_info {
OVERLAY_INFO_EXTERN(overlay_12);
OVERLAY_INFO_EXTERN(overlay_13);
OVERLAY_INFO_EXTERN(overlay_15);
+OVERLAY_INFO_EXTERN(overlay_gpio_01);
+OVERLAY_INFO_EXTERN(overlay_gpio_02a);
+OVERLAY_INFO_EXTERN(overlay_gpio_02b);
+OVERLAY_INFO_EXTERN(overlay_gpio_03);
+OVERLAY_INFO_EXTERN(overlay_gpio_04a);
+OVERLAY_INFO_EXTERN(overlay_gpio_04b);
OVERLAY_INFO_EXTERN(overlay_bad_add_dup_node);
OVERLAY_INFO_EXTERN(overlay_bad_add_dup_prop);
OVERLAY_INFO_EXTERN(overlay_bad_phandle);
@@ -2319,6 +2568,12 @@ struct overlay_info {
OVERLAY_INFO(overlay_12, 0),
OVERLAY_INFO(overlay_13, 0),
OVERLAY_INFO(overlay_15, 0),
+ OVERLAY_INFO(overlay_gpio_01, 0),
+ OVERLAY_INFO(overlay_gpio_02a, 0),
+ OVERLAY_INFO(overlay_gpio_02b, 0),
+ OVERLAY_INFO(overlay_gpio_03, 0),
+ OVERLAY_INFO(overlay_gpio_04a, 0),
+ OVERLAY_INFO(overlay_gpio_04b, 0),
OVERLAY_INFO(overlay_bad_add_dup_node, -EINVAL),
OVERLAY_INFO(overlay_bad_add_dup_prop, -EINVAL),
OVERLAY_INFO(overlay_bad_phandle, -EINVAL),
--
Frank Rowand <[email protected]>
From: Frank Rowand <[email protected]>
Some tests in the devicetree unittests result in printk messages
from the code being tested. It can be difficult to determine
whether the messages are the result of unittest or are potentially
reporting bugs that should be fixed. The most recent example of
a person asking whether to be concerned about these messages is [1].
Add annotations for all messages triggered by unittests, except
KERN_DEBUG messages. (KERN_DEBUG is a special case due to the
possible interaction of CONFIG_DYNAMIC_DEBUG.)
The annotations added in patch 2/2 add a small amount of verbosity
to the console output. I have created a proof of concept tool to
explore (1) how test harnesses could use the annotations and
(2) how to make the resulting console output easier to read and
understand as a human being. The tool 'of_unittest_expect' is
available at https://github.com/frowand/dt_tools
The format of the annotations is expected to change when unittests
are converted to use the kunit infrastructure when the broader
testing community has an opportunity to discuss the implementation
of annotations of test triggered messages.
[1] https://lore.kernel.org/r/[email protected]
Signed-off-by: Frank Rowand <[email protected]>
---
changes since RFC:
- none
drivers/of/unittest.c | 375 ++++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 345 insertions(+), 30 deletions(-)
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index b1cf9972d866..59169d143caf 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -51,6 +51,9 @@
* Expected message may have a message level other than KERN_INFO.
* Print the expected message only if the current loglevel will allow
* the actual message to print.
+ *
+ * Do not use EXPECT_BEGIN() or EXPECT_END() for messages generated by
+ * pr_debug().
*/
#define EXPECT_BEGIN(level, fmt, ...) \
printk(level pr_fmt("EXPECT \\ : ") fmt, ##__VA_ARGS__)
@@ -540,29 +543,77 @@ static void __init of_unittest_parse_phandle_with_args(void)
/* Check for missing cells property */
memset(&args, 0, sizeof(args));
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1");
+
rc = of_parse_phandle_with_args(np, "phandle-list",
"#phandle-cells-missing", 0, &args);
+
+ EXPECT_END(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1");
+
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1");
+
rc = of_count_phandle_with_args(np, "phandle-list",
"#phandle-cells-missing");
+
+ EXPECT_END(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1");
+
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
/* Check for bad phandle in list */
memset(&args, 0, sizeof(args));
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: could not find phandle");
+
rc = of_parse_phandle_with_args(np, "phandle-list-bad-phandle",
"#phandle-cells", 0, &args);
+
+ EXPECT_END(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: could not find phandle");
+
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: could not find phandle");
+
rc = of_count_phandle_with_args(np, "phandle-list-bad-phandle",
"#phandle-cells");
+
+ EXPECT_END(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: could not find phandle");
+
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
/* Check for incorrectly formed argument list */
memset(&args, 0, sizeof(args));
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1");
+
rc = of_parse_phandle_with_args(np, "phandle-list-bad-args",
"#phandle-cells", 1, &args);
+
+ EXPECT_END(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1");
+
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1");
+
rc = of_count_phandle_with_args(np, "phandle-list-bad-args",
"#phandle-cells");
+
+ EXPECT_END(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1");
+
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
}
@@ -673,20 +724,41 @@ static void __init of_unittest_parse_phandle_with_args_map(void)
/* Check for missing cells,map,mask property */
memset(&args, 0, sizeof(args));
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1");
+
rc = of_parse_phandle_with_args_map(np, "phandle-list",
"phandle-missing", 0, &args);
+ EXPECT_END(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1");
+
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
/* Check for bad phandle in list */
memset(&args, 0, sizeof(args));
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-b: could not find phandle");
+
rc = of_parse_phandle_with_args_map(np, "phandle-list-bad-phandle",
"phandle", 0, &args);
+ EXPECT_END(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-b: could not find phandle");
+
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
/* Check for incorrectly formed argument list */
memset(&args, 0, sizeof(args));
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1");
+
rc = of_parse_phandle_with_args_map(np, "phandle-list-bad-args",
"phandle", 1, &args);
+ EXPECT_END(KERN_INFO,
+ "OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1");
+
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
}
@@ -1217,7 +1289,15 @@ static void __init of_unittest_platform_populate(void)
np = of_find_node_by_path("/testcase-data/testcase-device2");
pdev = of_find_device_by_node(np);
unittest(pdev, "device 2 creation failed\n");
+
+ EXPECT_BEGIN(KERN_INFO,
+ "platform testcase-data:testcase-device2: IRQ index 0 not found");
+
irq = platform_get_irq(pdev, 0);
+
+ EXPECT_END(KERN_INFO,
+ "platform testcase-data:testcase-device2: IRQ index 0 not found");
+
unittest(irq < 0 && irq != -EPROBE_DEFER,
"device parsing error failed - %d\n", irq);
}
@@ -1421,6 +1501,9 @@ static int __init unittest_data_add(void)
return 0;
}
+ EXPECT_BEGIN(KERN_INFO,
+ "Duplicate name in testcase-data, renamed to \"duplicate-name#1\"");
+
/* attach the sub-tree to live tree */
np = unittest_data_node->child;
while (np) {
@@ -1431,6 +1514,9 @@ static int __init unittest_data_add(void)
np = next;
}
+ EXPECT_END(KERN_INFO,
+ "Duplicate name in testcase-data, renamed to \"duplicate-name#1\"");
+
of_overlay_mutex_unlock();
return 0;
@@ -1773,8 +1859,18 @@ static int __init of_unittest_apply_revert_overlay_check(int overlay_nr,
/* test activation of device */
static void __init of_unittest_overlay_0(void)
{
+ int ret;
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status");
+
/* device should enable */
- if (of_unittest_apply_overlay_check(0, 0, 0, 1, PDEV_OVERLAY))
+ ret = of_unittest_apply_overlay_check(0, 0, 0, 1, PDEV_OVERLAY);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status");
+
+ if (ret)
return;
unittest(1, "overlay test %d passed\n", 0);
@@ -1783,28 +1879,58 @@ static void __init of_unittest_overlay_0(void)
/* test deactivation of device */
static void __init of_unittest_overlay_1(void)
{
+ int ret;
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status");
+
/* device should disable */
- if (of_unittest_apply_overlay_check(1, 1, 1, 0, PDEV_OVERLAY))
+ ret = of_unittest_apply_overlay_check(1, 1, 1, 0, PDEV_OVERLAY);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status");
+
+ if (ret)
return;
unittest(1, "overlay test %d passed\n", 1);
+
}
/* test activation of device */
static void __init of_unittest_overlay_2(void)
{
+ int ret;
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status");
+
/* device should enable */
- if (of_unittest_apply_overlay_check(2, 2, 0, 1, PDEV_OVERLAY))
- return;
+ ret = of_unittest_apply_overlay_check(2, 2, 0, 1, PDEV_OVERLAY);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status");
+ if (ret)
+ return;
unittest(1, "overlay test %d passed\n", 2);
}
/* test deactivation of device */
static void __init of_unittest_overlay_3(void)
{
+ int ret;
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status");
+
/* device should disable */
- if (of_unittest_apply_overlay_check(3, 3, 1, 0, PDEV_OVERLAY))
+ ret = of_unittest_apply_overlay_check(3, 3, 1, 0, PDEV_OVERLAY);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status");
+
+ if (ret)
return;
unittest(1, "overlay test %d passed\n", 3);
@@ -1823,8 +1949,18 @@ static void __init of_unittest_overlay_4(void)
/* test overlay apply/revert sequence */
static void __init of_unittest_overlay_5(void)
{
+ int ret;
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status");
+
/* device should disable */
- if (of_unittest_apply_revert_overlay_check(5, 5, 0, 1, PDEV_OVERLAY))
+ ret = of_unittest_apply_revert_overlay_check(5, 5, 0, 1, PDEV_OVERLAY);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status");
+
+ if (ret)
return;
unittest(1, "overlay test %d passed\n", 5);
@@ -1838,6 +1974,8 @@ static void __init of_unittest_overlay_6(void)
int before = 0, after = 1;
const char *overlay_name;
+ int ret;
+
/* unittest device must be in before state */
for (i = 0; i < 2; i++) {
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
@@ -1852,18 +1990,41 @@ static void __init of_unittest_overlay_6(void)
}
/* apply the overlays */
- for (i = 0; i < 2; i++) {
- overlay_name = overlay_name_from_nr(overlay_nr + i);
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status");
+
+ overlay_name = overlay_name_from_nr(overlay_nr + 0);
- if (!overlay_data_apply(overlay_name, &ovcs_id)) {
- unittest(0, "could not apply overlay \"%s\"\n",
- overlay_name);
+ ret = overlay_data_apply(overlay_name, &ovcs_id);
+
+ if (!ret) {
+ unittest(0, "could not apply overlay \"%s\"\n", overlay_name);
+ return;
+ }
+ ov_id[0] = ovcs_id;
+ of_unittest_track_overlay(ov_id[0]);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status");
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status");
+
+ overlay_name = overlay_name_from_nr(overlay_nr + 1);
+
+ ret = overlay_data_apply(overlay_name, &ovcs_id);
+
+ if (!ret) {
+ unittest(0, "could not apply overlay \"%s\"\n", overlay_name);
return;
- }
- ov_id[i] = ovcs_id;
- of_unittest_track_overlay(ov_id[i]);
}
+ ov_id[1] = ovcs_id;
+ of_unittest_track_overlay(ov_id[1]);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status");
+
for (i = 0; i < 2; i++) {
/* unittest device must be in after state */
@@ -1904,6 +2065,7 @@ static void __init of_unittest_overlay_6(void)
}
unittest(1, "overlay test %d passed\n", 6);
+
}
/* test overlay application in sequence */
@@ -1912,26 +2074,65 @@ static void __init of_unittest_overlay_8(void)
int i, ov_id[2], ovcs_id;
int overlay_nr = 8, unittest_nr = 8;
const char *overlay_name;
+ int ret;
/* we don't care about device state in this test */
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status");
+
+ overlay_name = overlay_name_from_nr(overlay_nr + 0);
+
+ ret = overlay_data_apply(overlay_name, &ovcs_id);
+ if (!ret)
+ unittest(0, "could not apply overlay \"%s\"\n", overlay_name);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status");
+
+ if (!ret)
+ return;
+
+ ov_id[0] = ovcs_id;
+ of_unittest_track_overlay(ov_id[0]);
+
+ overlay_name = overlay_name_from_nr(overlay_nr + 1);
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo");
+
/* apply the overlays */
- for (i = 0; i < 2; i++) {
+ ret = overlay_data_apply(overlay_name, &ovcs_id);
- overlay_name = overlay_name_from_nr(overlay_nr + i);
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo");
- if (!overlay_data_apply(overlay_name, &ovcs_id)) {
- unittest(0, "could not apply overlay \"%s\"\n",
- overlay_name);
- return;
- }
- ov_id[i] = ovcs_id;
- of_unittest_track_overlay(ov_id[i]);
+ if (!ret) {
+ unittest(0, "could not apply overlay \"%s\"\n", overlay_name);
+ return;
}
+ ov_id[1] = ovcs_id;
+ of_unittest_track_overlay(ov_id[1]);
+
/* now try to remove first overlay (it should fail) */
ovcs_id = ov_id[0];
- if (!of_overlay_remove(&ovcs_id)) {
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8");
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: overlay #6 is not topmost");
+
+ ret = of_overlay_remove(&ovcs_id);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: overlay #6 is not topmost");
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8");
+
+ if (!ret) {
unittest(0, "%s was destroyed @\"%s\"\n",
overlay_name_from_nr(overlay_nr + 0),
unittest_path(unittest_nr,
@@ -1963,6 +2164,7 @@ static void __init of_unittest_overlay_10(void)
/* device should disable */
ret = of_unittest_apply_overlay_check(10, 10, 0, 1, PDEV_OVERLAY);
+
if (unittest(ret == 0,
"overlay test %d failed; overlay application\n", 10))
return;
@@ -1986,6 +2188,7 @@ static void __init of_unittest_overlay_11(void)
/* device should disable */
ret = of_unittest_apply_revert_overlay_check(11, 11, 0, 1,
PDEV_OVERLAY);
+
unittest(ret == 0, "overlay test %d failed; overlay apply\n", 11);
}
@@ -2216,12 +2419,21 @@ static int of_unittest_overlay_i2c_init(void)
return ret;
ret = platform_driver_register(&unittest_i2c_bus_driver);
+
if (unittest(ret == 0,
"could not register unittest i2c bus driver\n"))
return ret;
#if IS_BUILTIN(CONFIG_I2C_MUX)
+
+ EXPECT_BEGIN(KERN_INFO,
+ "i2c i2c-1: Added multiplexed i2c bus 2");
+
ret = i2c_add_driver(&unittest_i2c_mux_driver);
+
+ EXPECT_END(KERN_INFO,
+ "i2c i2c-1: Added multiplexed i2c bus 2");
+
if (unittest(ret == 0,
"could not register unittest i2c mux driver\n"))
return ret;
@@ -2241,8 +2453,18 @@ static void of_unittest_overlay_i2c_cleanup(void)
static void __init of_unittest_overlay_i2c_12(void)
{
+ int ret;
+
/* device should enable */
- if (of_unittest_apply_overlay_check(12, 12, 0, 1, I2C_OVERLAY))
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status");
+
+ ret = of_unittest_apply_overlay_check(12, 12, 0, 1, I2C_OVERLAY);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status");
+
+ if (ret)
return;
unittest(1, "overlay test %d passed\n", 12);
@@ -2251,8 +2473,18 @@ static void __init of_unittest_overlay_i2c_12(void)
/* test deactivation of device */
static void __init of_unittest_overlay_i2c_13(void)
{
+ int ret;
+
+ EXPECT_BEGIN(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status");
+
/* device should disable */
- if (of_unittest_apply_overlay_check(13, 13, 1, 0, I2C_OVERLAY))
+ ret = of_unittest_apply_overlay_check(13, 13, 1, 0, I2C_OVERLAY);
+
+ EXPECT_END(KERN_INFO,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status");
+
+ if (ret)
return;
unittest(1, "overlay test %d passed\n", 13);
@@ -2265,8 +2497,18 @@ static void of_unittest_overlay_i2c_14(void)
static void __init of_unittest_overlay_i2c_15(void)
{
+ int ret;
+
/* device should enable */
- if (of_unittest_apply_overlay_check(15, 15, 0, 1, I2C_OVERLAY))
+ EXPECT_BEGIN(KERN_INFO,
+ "i2c i2c-1: Added multiplexed i2c bus 3");
+
+ ret = of_unittest_apply_overlay_check(15, 15, 0, 1, I2C_OVERLAY);
+
+ EXPECT_END(KERN_INFO,
+ "i2c i2c-1: Added multiplexed i2c bus 3");
+
+ if (ret)
return;
unittest(1, "overlay test %d passed\n", 15);
@@ -2725,6 +2967,7 @@ static __init void of_unittest_overlay_high_level(void)
struct device_node *overlay_base_symbols;
struct device_node **pprev;
struct property *prop;
+ int ret;
if (!overlay_base_root) {
unittest(0, "overlay_base_root not initialized\n");
@@ -2839,15 +3082,86 @@ static __init void of_unittest_overlay_high_level(void)
/* now do the normal overlay usage test */
- unittest(overlay_data_apply("overlay", NULL),
- "Adding overlay 'overlay' failed\n");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right");
+
+ ret = overlay_data_apply("overlay", NULL);
+
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status");
+
+ unittest(ret, "Adding overlay 'overlay' failed\n");
+
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name");
unittest(overlay_data_apply("overlay_bad_add_dup_node", NULL),
"Adding overlay 'overlay_bad_add_dup_node' failed\n");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller");
+
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail");
+
unittest(overlay_data_apply("overlay_bad_add_dup_prop", NULL),
"Adding overlay 'overlay_bad_add_dup_prop' failed\n");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail");
+
unittest(overlay_data_apply("overlay_bad_phandle", NULL),
"Adding overlay 'overlay_bad_phandle' failed\n");
@@ -2871,6 +3185,8 @@ static int __init of_unittest(void)
struct device_node *np;
int res;
+ pr_info("start of unittest - you will see error messages\n");
+
/* adding data for unittest */
if (IS_ENABLED(CONFIG_UML))
@@ -2889,7 +3205,6 @@ static int __init of_unittest(void)
}
of_node_put(np);
- pr_info("start of unittest - you will see error messages\n");
of_unittest_check_tree_linkage();
of_unittest_check_phandles();
of_unittest_find_node_by_name();
--
Frank Rowand <[email protected]>
On 1/28/20 11:46 PM, [email protected] wrote:
> From: Frank Rowand <[email protected]>
>
> Geert reports that gpio hog nodes are not properly processed when
> the gpio hog node is added via an overlay reply and provides an
> RFC patch to fix the problem [1].
>
> Add a unittest that shows the problem. Unittest will report "1 failed"
> test before applying Geert's RFC patch and "0 failed" after applying
> Geert's RFC patch.
>
> I did not have a development system for which it would be easy to
> experiment with applying an overlay containing a gpio hog, so I
> instead created this unittest that uses a fake gpio node.
>
> Some tests in the devicetree unittests result in printk messages
> from the code being tested. It can be difficult to determine
> whether the messages are the result of unittest or are potentially
> reporting bugs that should be fixed. The most recent example of
> a person asking whether to be concerned about these messages is [2].
>
> Patch 2 adds annotations for all messages triggered by unittests,
> except KERN_DEBUG messages. (KERN_DEBUG is a special case due to the
> possible interaction of CONFIG_DYNAMIC_DEBUG.)
>
> The annotations added in patch 2/2 add a small amount of verbosity
> to the console output. I have created a proof of concept tool to
> explore (1) how test harnesses could use the annotations and
> (2) how to make the resulting console output easier to read and
> understand as a human being. The tool 'of_unittest_expect' is
> available at https://github.com/frowand/dt_tools
>
> The format of the annotations is expected to change when unittests
> are converted to use the kunit infrastructure when the broader
> testing community has an opportunity to discuss the implementation
> of annotations of test triggered messages.
>
> [1] https://lore.kernel.org/linux-devicetree/[email protected]/
> [2] https://lore.kernel.org/r/[email protected]
>
> Frank Rowand (2):
> of: unittest: add overlay gpio test to catch gpio hog problem
> of: unittest: annotate warnings triggered by unittest
>
> drivers/of/unittest-data/Makefile | 8 +-
> drivers/of/unittest-data/overlay_gpio_01.dts | 23 +
> drivers/of/unittest-data/overlay_gpio_02a.dts | 16 +
> drivers/of/unittest-data/overlay_gpio_02b.dts | 16 +
> drivers/of/unittest-data/overlay_gpio_03.dts | 23 +
> drivers/of/unittest-data/overlay_gpio_04a.dts | 16 +
> drivers/of/unittest-data/overlay_gpio_04b.dts | 16 +
> drivers/of/unittest.c | 630 ++++++++++++++++++++++++--
> 8 files changed, 717 insertions(+), 31 deletions(-)
> create mode 100644 drivers/of/unittest-data/overlay_gpio_01.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_02a.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_02b.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_03.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_04a.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_04b.dts
>
Console output after patch 1/2, filtered by 'of_unittest_expect':
ndroid Bootloader - UART_DM Initialized!!!
[0] welcome to lk
[10] platform_init()
[10] target_init()
[10] Display Init: Start
[10] display_init(),target_id=10.
[30] Config MIPI_VIDEO_PANEL.
[30] Turn on MIPI_VIDEO_PANEL.
[50] Video lane tested successfully
[50] Display Init: Done
[80] Loading keystore failed status 5 [80] ERROR: scm_protect_keystore Failed[200] USB init ept @ 0xf96b000
[220] fastboot_init()
[220] udc_start()
[350] -- reset --
[350] -- portchange --
[460] -- reset --
[460] -- portchange --
[650] fastboot: processing commands
[780] fastboot: download:00f30800
[1270] fastboot: boot
[1290] Found Appeneded Flattened Device tree
[1290] cmdline: console=ttyMSM0,115200,n8 androidboot.hardware=qcom maxcpus=2 msm_rtb.filter=0x37 ehci-hcd.park=3 norandmaps androidboot.emmc=true androidboot.serialno=40081c41 androidboot.baseband=apq
[1310] Updating device tree: start
[1310] Updating device tree: done
[1320] booting linux @ 0x8000, ramdisk @ 0x2000000 (9533134), tags/device tree @ 0x1e00000
[1320] Turn off MIPI_VIDEO_PANEL.
[1320] Continuous splash enabled, keeping panel alive.
Booting Linux on physical CPU 0x0
Linux version 5.5.0-00001-gee85e8d1d8fe-dirty (frowand@xps8900) (gcc version 4.6.x-google 20120106 (prerelease) (GCC)) #6 SMP PREEMPT Tue Jan 28 23:00:59 CST 2020
CPU: ARMv7 Processor [512f06f0] revision 0 (ARMv7), cr=10c5787d
CPU: div instructions available: patching division code
CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
OF: fdt: Machine model: Qualcomm APQ8074 Dragonboard
Memory policy: Data cache writealloc
cma: Reserved 256 MiB at 0x70000000
percpu: Embedded 19 pages/cpu s48192 r8192 d21440 u77824
Built 1 zonelists, mobility grouping on. Total pages: 490240
Kernel command line: console=ttyMSM0,115200,n8 androidboot.hardware=qcom maxcpus=2 msm_rtb.filter=0x37 ehci-hcd.park=3 norandmaps androidboot.emmc=true androidboot.serialno=40081c41 androidboot.baseband=apq
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
mem auto-init: stack:off, heap alloc:off, heap free:off
Memory: 1664560K/1967104K available (8192K kernel code, 859K rwdata, 3788K rodata, 1024K init, 268K bss, 40400K reserved, 262144K cma-reserved, 1048576K highmem)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
rcu: Preemptible hierarchical RCU implementation.
Tasks RCU enabled.
rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
random: get_random_bytes called from start_kernel+0x2fc/0x508 with crng_init=0
arch_timer: cp15 and mmio timer(s) running at 19.20MHz (virt/virt).
clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
Switching to timer-based delay loop, resolution 52ns
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x300000 - 0x300060
rcu: Hierarchical SRCU implementation.
smp: Bringing up secondary CPUs ...
CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
smp: Brought up 1 node, 2 CPUs
SMP: Total of 2 processors activated (76.80 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 51 architecture 64 part 6f variant 2 rev 0
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
pinctrl core: initialized pinctrl subsystem
thermal_sys: Registered thermal governor 'step_wise'
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor menu
hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 8 bytes.
iommu: Default domain type: Translated
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource arch_sys_counter
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
TCP: Hash tables configured (established 8192 bind 8192)
UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
PCI: CLS 0 bytes, default 64
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 9312K
hw perfevents: enabled with armv7_krait PMU driver, 5 counters available
Initialise system trusted keyrings
workingset: timestamp_bits=30 max_order=19 bucket_order=0
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
Key type cifs.idmap registered
jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
fuse: init (API version 7.31)
Key type asymmetric registered
Asymmetric key parser 'x509' registered
bounce: pool size: 64 pages
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
io scheduler mq-deadline registered
io scheduler kyber registered
msm_serial f991e000.serial: msm_serial: detected port #0
msm_serial f991e000.serial: uartclk = 7372800
f991e000.serial: ttyMSM0 at MMIO 0xf991e000 (irq = 28, base_baud = 460800) is a MSM
msm_serial: console setup on port #0
printk: console [ttyMSM0] enabled
msm_serial: driver initialized
brd: module loaded
loop: module loaded
SCSI Media Changer driver v0.25
spmi spmi-0: PMIC arbiter version v1 (0x20000002)
s1: supplied by regulator-dummy
s2: supplied by regulator-dummy
s3: supplied by regulator-dummy
s4: Bringing 5100000uV into 5000000-5000000uV
l1: supplied by regulator-dummy
l2: supplied by regulator-dummy
l3: supplied by regulator-dummy
l4: supplied by regulator-dummy
l5: supplied by regulator-dummy
l6: supplied by regulator-dummy
l7: supplied by regulator-dummy
l8: supplied by regulator-dummy
l9: supplied by regulator-dummy
l10: supplied by regulator-dummy
l11: supplied by regulator-dummy
l12: supplied by regulator-dummy
l13: supplied by regulator-dummy
l14: supplied by regulator-dummy
l15: supplied by regulator-dummy
l16: supplied by regulator-dummy
l17: supplied by regulator-dummy
l18: supplied by regulator-dummy
l19: supplied by regulator-dummy
l20: supplied by regulator-dummy
l21: supplied by regulator-dummy
l22: supplied by regulator-dummy
l23: supplied by regulator-dummy
l24: supplied by regulator-dummy
lvs1: supplied by regulator-dummy
lvs2: supplied by regulator-dummy
lvs3: supplied by regulator-dummy
5vs1: supplied by s4
5vs2: supplied by s4
libphy: Fixed MDIO Bus: probed
SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled).
CSLIP: code copyright 1989 Regents of the University of California.
usbcore: registered new interface driver ax88179_178a
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver net1080
usbcore: registered new interface driver cdc_subset
usbcore: registered new interface driver cdc_ncm
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
usbcore: registered new interface driver cdc_acm
cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
rtc-pm8xxx fc4cf000.spmi:pm8941@0:rtc@6000: registered as rtc0
i2c /dev entries driver
qcom-smbb fc4cf000.spmi:pm8941@0:charger@1000: Initializing SMBB rev 3
otg-vbus: supplied by 5vs1
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
sdhci_msm f98a4900.sdhci: Got CD GPIO
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using timer interrupt.
NET: Registered protocol family 17
Key type dns_resolver registered
Registering SWP/SWPB emulation handler
Loading compiled-in X.509 certificates
debugfs: Directory 'fc4a9000.thermal-sensor' with parent 'tsens' already present!
sdhci_msm f98a4900.sdhci: Got CD GPIO
sdhci_msm f98a4900.sdhci: Got CD GPIO
s1: supplied by regulator-dummy
s1: Bringing 0uV into 675000-675000uV
sdhci_msm f98a4900.sdhci: Got CD GPIO
rtc-pm8xxx fc4cf000.spmi:pm8941@0:rtc@6000: setting system clock to 1970-01-16T23:55:43 UTC (1382143)
Duplicate name in testcase-data, renamed to "duplicate-name#1"
s2: supplied by regulator-dummy
-> ### dt-test ### start of unittest - you will see error messages
s2: Bringing 0uV into 500000-500000uV
OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
s3: supplied by regulator-dummy
OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
s3: Bringing 0uV into 500000-500000uV
OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
s4: supplied by regulator-dummy
OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
s4: Bringing 0uV into 500000-500000uV
OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
s5: supplied by regulator-dummy
OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1
s6: supplied by regulator-dummy
OF: /testcase-data/phandle-tests/consumer-b: could not find phandle
s7: supplied by regulator-dummy
OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1
s8: supplied by regulator-dummy
platform testcase-data:testcase-device2: IRQ index 0 not found
s1: supplied by regulator-dummy
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status
s1: Bringing 0uV into 1300000-1300000uV
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status
s2: supplied by regulator-dummy
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status
s2: Bringing 0uV into 2150000-2150000uV
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status
s3: supplied by regulator-dummy
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status
sdhci_msm f98a4900.sdhci: Got CD GPIO
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status
s3: Bringing 0uV into 1800000-1800000uV
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status
l1: supplied by s1
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status
sdhci_msm f98a4900.sdhci: Got CD GPIO
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo
l1: Bringing 0uV into 1225000-1225000uV
OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8
OF: overlay: overlay #6 is not topmost
l2: supplied by s3
l2: Bringing 0uV into 1200000-1200000uV
l3: supplied by s1
i2c i2c-1: Added multiplexed i2c bus 2
sdhci_msm f98a4900.sdhci: Got CD GPIO
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status
l3: Bringing 0uV into 1225000-1225000uV
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status
l4: supplied by s1
i2c i2c-1: Added multiplexed i2c bus 3
sdhci_msm f98a4900.sdhci: Got CD GPIO
l4: Bringing 0uV into 1225000-1225000uV
l5: supplied by s2
ok GPIO line 315 (line-B-input) hogged as input
sdhci_msm f98a4900.sdhci: Got CD GPIO
ok GPIO line 309 (line-A-input) hogged as input
l5: Bringing 0uV into 1800000-1800000uV
l6: supplied by s2
l6: Bringing 0uV into 1800000-1800000uV
ok GPIO line 307 (line-D-input) hogged as input
l7: supplied by s2
sdhci_msm f98a4900.sdhci: Got CD GPIO
l7: Bringing 0uV into 1800000-1800000uV
** of_unittest_expect WARNING - not found ---> GPIO line <<int>> (line-C-input) hogged as input
l8: supplied by regulator-dummy
>> ### dt-test ### FAIL of_unittest_overlay_gpio():2424 unittest_gpio_chip_request() called 0 times (expected 1 time)
sdhci_msm f98a4900.sdhci: Got CD GPIO
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status
l8: Bringing 0uV into 1800000-1800000uV
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right
OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller
l9: supplied by regulator-dummy
l9: Bringing 0uV into 1800000-1800000uV
OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail
-> ### dt-test ### end of unittest - 258 passed, 1 failed
l10: supplied by regulator-dummy
ALSA device list:
sdhci_msm f98a4900.sdhci: Got CD GPIO
No soundcard�[ 3.059465] l11: supplied by s1
l11: Bringing 0uV into 1300000-1300000uV
Freeing unused kernel memory: 1024K
l12: supplied by s2
l12: Bringing 0uV into 1800000-1800000uV
l13: supplied by regulator-dummy
l13: Bringing 0uV into 1800000-1800000uV
l14: supplied by s2
l14: Bringing 0uV into 1800000-1800000uV
l15: supplied by s2
l15: Bringing 0uV into 2050000-2050000uV
Run /init as init process
l16: supplied by regulator-dummy
l16: Bringing 0uV into 2700000-2700000uV
l17: supplied by regulator-dummy
l17: Bringing 0uV into 2700000-2700000uV
l18: supplied by regulator-dummy
l18: Bringing 0uV into 2850000-2850000uV
l19: supplied by regulator-dummy
l19: Bringing 0uV into 3300000-3300000uV
l20: supplied by regulator-dummy
l20: Bringing 0uV into 2950000-2950000uV
l21: supplied by regulator-dummy
l21: Bringing 0uV into 2950000-2950000uV
l22: supplied by regulator-dummy
l22: Bringing 0uV into 3000000-3000000uV
l23: supplied by regulator-dummy
l23: Bringing 0uV into 3000000-3000000uV
l24: supplied by regulator-dummy
l24: Bringing 0uV into 3075000-3075000uV
lvs1: supplied by s3
mkdir: can't create directory '/bin': File exists
mkdir: can't [ 3.194707] lvs2: supplied by s3
create directory '/dev': File exists
/init: line 25: can't crea[ 3.203415] lvs3: supplied by s3
te /proc/sys/kernel/hotplug: nonexistent directory
mdev: unknow[ 3.212141] 5vs1: supplied by s4
n user/group 'root:uucp' on line 34
5vs2: supplied by s4
mmc0: SDHCI controller on f9824900.sdhci [f9824900.sdhci] using ADMA
sdhci_msm f98a4900.sdhci: Got CD GPIO
mmc1: SDHCI controller on f98a4900.sdhci [f98a4900.sdhci] using ADMA
mmc0: new HS200 MMC card at address 0001
mmc1: new ultra high speed DDR50 SDHC card at address aaaa
mmcblk0: mmc0:0001 SEM16G 14.7 GiB
mmcblk0boot0: mmc0:0001 SEM16G partition 1 4.00 MiB
mmcblk0boot1: mmc0:0001 SEM16G partition 2 4.00 MiB
mmcblk1: mmc1:aaaa SU16G 14.8 GiB
mmcblk0rpmb: mmc0:0001 SEM16G partition 3 4.00 MiB, chardev (247:0)
mmcblk1: p1
mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15 p16 p17 p18 p19 p20
Attempt to mount partitions: /usr/system /usr/data
Mounting partitions from: /dev/mmcblk0
EXT4-fs (mmcblk0p12): mounted filesystem with ordered data mode. Opts: (null)
random: fast init done
EXT4-fs (mmcblk0p13): recovery complete
EXT4-fs (mmcblk0p13): mounted filesystem with ordered data mode. Opts: (null)
/ #
/ # cat /proc/version
Linux version 5.5.0-00001-gee85e8d1d8fe-dirty (frowand@xps8900) (gcc version 4.6.x-google 20120106 (prerelease) (GCC)) #6 SMP PREEMPT Tue Jan 28 23:00:59 CST 2020
On 1/28/20 11:46 PM, [email protected] wrote:
> From: Frank Rowand <[email protected]>
>
> Geert reports that gpio hog nodes are not properly processed when
> the gpio hog node is added via an overlay reply and provides an
> RFC patch to fix the problem [1].
>
> Add a unittest that shows the problem. Unittest will report "1 failed"
> test before applying Geert's RFC patch and "0 failed" after applying
> Geert's RFC patch.
>
> I did not have a development system for which it would be easy to
> experiment with applying an overlay containing a gpio hog, so I
> instead created this unittest that uses a fake gpio node.
>
> Some tests in the devicetree unittests result in printk messages
> from the code being tested. It can be difficult to determine
> whether the messages are the result of unittest or are potentially
> reporting bugs that should be fixed. The most recent example of
> a person asking whether to be concerned about these messages is [2].
>
> Patch 2 adds annotations for all messages triggered by unittests,
> except KERN_DEBUG messages. (KERN_DEBUG is a special case due to the
> possible interaction of CONFIG_DYNAMIC_DEBUG.)
>
> The annotations added in patch 2/2 add a small amount of verbosity
> to the console output. I have created a proof of concept tool to
> explore (1) how test harnesses could use the annotations and
> (2) how to make the resulting console output easier to read and
> understand as a human being. The tool 'of_unittest_expect' is
> available at https://github.com/frowand/dt_tools
>
> The format of the annotations is expected to change when unittests
> are converted to use the kunit infrastructure when the broader
> testing community has an opportunity to discuss the implementation
> of annotations of test triggered messages.
>
> [1] https://lore.kernel.org/linux-devicetree/[email protected]/
> [2] https://lore.kernel.org/r/[email protected]
>
> Frank Rowand (2):
> of: unittest: add overlay gpio test to catch gpio hog problem
> of: unittest: annotate warnings triggered by unittest
>
> drivers/of/unittest-data/Makefile | 8 +-
> drivers/of/unittest-data/overlay_gpio_01.dts | 23 +
> drivers/of/unittest-data/overlay_gpio_02a.dts | 16 +
> drivers/of/unittest-data/overlay_gpio_02b.dts | 16 +
> drivers/of/unittest-data/overlay_gpio_03.dts | 23 +
> drivers/of/unittest-data/overlay_gpio_04a.dts | 16 +
> drivers/of/unittest-data/overlay_gpio_04b.dts | 16 +
> drivers/of/unittest.c | 630 ++++++++++++++++++++++++--
> 8 files changed, 717 insertions(+), 31 deletions(-)
> create mode 100644 drivers/of/unittest-data/overlay_gpio_01.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_02a.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_02b.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_03.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_04a.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_04b.dts
>
Console output after patch 2/2, filtered by 'of_unittest_expect':
ndroid Bootloader - UART_DM Initialized!!!
[0] welcome to lk
[10] platform_init()
[10] target_init()
[10] Display Init: Start
[10] display_init(),target_id=10.
[30] Config MIPI_VIDEO_PANEL.
[30] Turn on MIPI_VIDEO_PANEL.
[50] Video lane tested successfully
[50] Display Init: Done
[80] Loading keystore failed status 5 [80] ERROR: scm_protect_keystore Failed[200] USB init ept @ 0xf96b000
[220] fastboot_init()
[220] udc_start()
[340] -- reset --
[350] -- portchange --
[460] -- reset --
[460] -- portchange --
[650] fastboot: processing commands
[770] fastboot: download:00f30800
[1260] fastboot: boot
[1280] Found Appeneded Flattened Device tree
[1280] cmdline: console=ttyMSM0,115200,n8 androidboot.hardware=qcom maxcpus=2 msm_rtb.filter=0x37 ehci-hcd.park=3 norandmaps androidboot.emmc=true androidboot.serialno=40081c41 androidboot.baseband=apq
[1300] Updating device tree: start
[1310] Updating device tree: done
[1310] booting linux @ 0x8000, ramdisk @ 0x2000000 (9533134), tags/device tree @ 0x1e00000
[1320] Turn off MIPI_VIDEO_PANEL.
[1320] Continuous splash enabled, keeping panel alive.
Booting Linux on physical CPU 0x0
Linux version 5.5.0-00002-g7d506dfcce24 (frowand@xps8900) (gcc version 4.6.x-google 20120106 (prerelease) (GCC)) #7 SMP PREEMPT Tue Jan 28 23:10:47 CST 2020
CPU: ARMv7 Processor [512f06f0] revision 0 (ARMv7), cr=10c5787d
CPU: div instructions available: patching division code
CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
OF: fdt: Machine model: Qualcomm APQ8074 Dragonboard
Memory policy: Data cache writealloc
cma: Reserved 256 MiB at 0x70000000
percpu: Embedded 19 pages/cpu s48192 r8192 d21440 u77824
Built 1 zonelists, mobility grouping on. Total pages: 490240
Kernel command line: console=ttyMSM0,115200,n8 androidboot.hardware=qcom maxcpus=2 msm_rtb.filter=0x37 ehci-hcd.park=3 norandmaps androidboot.emmc=true androidboot.serialno=40081c41 androidboot.baseband=apq
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
mem auto-init: stack:off, heap alloc:off, heap free:off
Memory: 1664560K/1967104K available (8192K kernel code, 859K rwdata, 3800K rodata, 1024K init, 268K bss, 40400K reserved, 262144K cma-reserved, 1048576K highmem)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
rcu: Preemptible hierarchical RCU implementation.
Tasks RCU enabled.
rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
random: get_random_bytes called from start_kernel+0x2fc/0x508 with crng_init=0
arch_timer: cp15 and mmio timer(s) running at 19.20MHz (virt/virt).
clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
Switching to timer-based delay loop, resolution 52ns
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x300000 - 0x300060
rcu: Hierarchical SRCU implementation.
smp: Bringing up secondary CPUs ...
CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
smp: Brought up 1 node, 2 CPUs
SMP: Total of 2 processors activated (76.80 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 51 architecture 64 part 6f variant 2 rev 0
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
pinctrl core: initialized pinctrl subsystem
thermal_sys: Registered thermal governor 'step_wise'
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor menu
hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 8 bytes.
iommu: Default domain type: Translated
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource arch_sys_counter
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
TCP: Hash tables configured (established 8192 bind 8192)
UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
PCI: CLS 0 bytes, default 64
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 9312K
hw perfevents: enabled with armv7_krait PMU driver, 5 counters available
Initialise system trusted keyrings
workingset: timestamp_bits=30 max_order=19 bucket_order=0
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
Key type cifs.idmap registered
jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
fuse: init (API version 7.31)
Key type asymmetric registered
Asymmetric key parser 'x509' registered
bounce: pool size: 64 pages
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
io scheduler mq-deadline registered
io scheduler kyber registered
msm_serial f991e000.serial: msm_serial: detected port #0
msm_serial f991e000.serial: uartclk = 7372800
f991e000.serial: ttyMSM0 at MMIO 0xf991e000 (irq = 28, base_baud = 460800) is a MSM
msm_serial: console setup on port #0
printk: console [ttyMSM0] enabled
msm_serial: driver initialized
brd: module loaded
loop: module loaded
SCSI Media Changer driver v0.25
spmi spmi-0: PMIC arbiter version v1 (0x20000002)
s1: supplied by regulator-dummy
s2: supplied by regulator-dummy
s3: supplied by regulator-dummy
s4: Bringing 5100000uV into 5000000-5000000uV
l1: supplied by regulator-dummy
l2: supplied by regulator-dummy
l3: supplied by regulator-dummy
l4: supplied by regulator-dummy
l5: supplied by regulator-dummy
l6: supplied by regulator-dummy
l7: supplied by regulator-dummy
l8: supplied by regulator-dummy
l9: supplied by regulator-dummy
l10: supplied by regulator-dummy
l11: supplied by regulator-dummy
l12: supplied by regulator-dummy
l13: supplied by regulator-dummy
l14: supplied by regulator-dummy
l15: supplied by regulator-dummy
l16: supplied by regulator-dummy
l17: supplied by regulator-dummy
l18: supplied by regulator-dummy
l19: supplied by regulator-dummy
l20: supplied by regulator-dummy
l21: supplied by regulator-dummy
l22: supplied by regulator-dummy
l23: supplied by regulator-dummy
l24: supplied by regulator-dummy
lvs1: supplied by regulator-dummy
lvs2: supplied by regulator-dummy
lvs3: supplied by regulator-dummy
5vs1: supplied by s4
5vs2: supplied by s4
libphy: Fixed MDIO Bus: probed
SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled).
CSLIP: code copyright 1989 Regents of the University of California.
usbcore: registered new interface driver ax88179_178a
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver net1080
usbcore: registered new interface driver cdc_subset
usbcore: registered new interface driver cdc_ncm
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
usbcore: registered new interface driver cdc_acm
cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
rtc-pm8xxx fc4cf000.spmi:pm8941@0:rtc@6000: registered as rtc0
i2c /dev entries driver
qcom-smbb fc4cf000.spmi:pm8941@0:charger@1000: Initializing SMBB rev 3
otg-vbus: supplied by 5vs1
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
sdhci_msm f98a4900.sdhci: Got CD GPIO
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using timer interrupt.
NET: Registered protocol family 17
Key type dns_resolver registered
Registering SWP/SWPB emulation handler
Loading compiled-in X.509 certificates
debugfs: Directory 'fc4a9000.thermal-sensor' with parent 'tsens' already present!
sdhci_msm f98a4900.sdhci: Got CD GPIO
sdhci_msm f98a4900.sdhci: Got CD GPIO
s1: supplied by regulator-dummy
s1: Bringing 0uV into 675000-675000uV
sdhci_msm f98a4900.sdhci: Got CD GPIO
s2: supplied by regulator-dummy
rtc-pm8xxx fc4cf000.spmi:pm8941@0:rtc@6000: setting system clock to 1970-01-17T00:05:31 UTC (1382731)
-> ### dt-test ### start of unittest - you will see error messages
s2: Bringing 0uV into 500000-500000uV
ok Duplicate name in testcase-data, renamed to "duplicate-name#1"
s3: supplied by regulator-dummy
s3: Bringing 0uV into 500000-500000uV
ok OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
s4: supplied by regulator-dummy
s4: Bringing 0uV into 500000-500000uV
ok OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
s5: supplied by regulator-dummy
s6: supplied by regulator-dummy
ok OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
s7: supplied by regulator-dummy
ok OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
s8: supplied by regulator-dummy
s1: supplied by regulator-dummy
ok OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
s1: Bringing 0uV into 1300000-1300000uV
s2: supplied by regulator-dummy
ok OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
sdhci_msm f98a4900.sdhci: Got CD GPIO
s2: Bringing 0uV into 2150000-2150000uV
ok OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1
s3: supplied by regulator-dummy
s3: Bringing 0uV into 1800000-1800000uV
ok OF: /testcase-data/phandle-tests/consumer-b: could not find phandle
l1: supplied by s1
ok OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1
l1: Bringing 0uV into 1225000-1225000uV
l2: supplied by s3
ok platform testcase-data:testcase-device2: IRQ index 0 not found
l2: Bringing 0uV into 1200000-1200000uV
l3: supplied by s1
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status
l3: Bringing 0uV into 1225000-1225000uV
l4: supplied by s1
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status
l4: Bringing 0uV into 1225000-1225000uV
l5: supplied by s2
sdhci_msm f98a4900.sdhci: Got CD GPIO
l5: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status
l6: supplied by s2
l6: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status
l7: supplied by s2
l7: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status
sdhci_msm f98a4900.sdhci: Got CD GPIO
l8: supplied by regulator-dummy
l8: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status
l9: supplied by regulator-dummy
l9: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status
sdhci_msm f98a4900.sdhci: Got CD GPIO
l10: supplied by regulator-dummy
l10: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status
l11: supplied by s1
l11: Bringing 0uV into 1300000-1300000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo
sdhci_msm f98a4900.sdhci: Got CD GPIO
l12: supplied by s2
ok OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8
l12: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: overlay #6 is not topmost
l13: supplied by regulator-dummy
ok i2c i2c-1: Added multiplexed i2c bus 2
l13: Bringing 0uV into 1800000-1800000uV
l14: supplied by s2
sdhci_msm f98a4900.sdhci: Got CD GPIO
l14: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status
l15: supplied by s2
l15: Bringing 0uV into 2050000-2050000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status
sdhci_msm f98a4900.sdhci: Got CD GPIO
l16: supplied by regulator-dummy
l16: Bringing 0uV into 2700000-2700000uV
ok i2c i2c-1: Added multiplexed i2c bus 3
l17: supplied by regulator-dummy
l17: Bringing 0uV into 2700000-2700000uV
sdhci_msm f98a4900.sdhci: Got CD GPIO
l18: supplied by regulator-dummy
l18: Bringing 0uV into 2850000-2850000uV
l19: supplied by regulator-dummy
ok GPIO line 315 (line-B-input) hogged as input
l19: Bringing 0uV into 3300000-3300000uV
ok GPIO line 309 (line-A-input) hogged as input
l20: supplied by regulator-dummy
l20: Bringing 0uV into 2950000-2950000uV
sdhci_msm f98a4900.sdhci: Got CD GPIO
l21: supplied by regulator-dummy
l21: Bringing 0uV into 2950000-2950000uV
l22: supplied by regulator-dummy
ok GPIO line 307 (line-D-input) hogged as input
l22: Bringing 0uV into 3000000-3000000uV
l23: supplied by regulator-dummy
l23: Bringing 0uV into 3000000-3000000uV
** of_unittest_expect WARNING - not found ---> GPIO line <<int>> (line-C-input) hogged as input
l24: supplied by regulator-dummy
>> ### dt-test ### FAIL of_unittest_overlay_gpio():2666 unittest_gpio_chip_request() called 0 times (expected 1 time)
l24: Bringing 0uV into 3075000-3075000uV
lvs1: supplied by s3
lvs2: supplied by s3
mmc0: SDHCI controller on f98a4900.sdhci [f98a4900.sdhci] using ADMA
lvs3: supplied by s3
5vs1: supplied by s4
5vs2: supplied by s4
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status
mmc1: SDHCI controller on f9824900.sdhci [f9824900.sdhci] using ADMA
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right
mmc0: new ultra high speed DDR50 SDHC card at address aaaa
mmcblk0: mmc0:aaaa SU16G 14.8 GiB
ok OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller
mmcblk0: p1
ok OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
ok OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail
-> ### dt-test ### end of unittest - 258 passed, 1 failed
ALSA device[ 4.328014] mmc1: new HS200 MMC card at address 0001
Freeing unused kernel memory: 1024K
Run /init as init process
mmcblk1: mmc1:0001 SEM16G 14.7 GiB
mmcblk1boot0: mmc1:0001 SEM16G partition 1 4.00 MiB
mmcblk1boot1: mmc1:0001 SEM16G partition 2 4.00 MiB
mmcblk1rpmb: mmc1:0001 SEM16G partition 3 4.00 MiB, chardev (247:0)
mmcblk1: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15 p16 p17 p18 p19 p20
mkdir: can't create directory '/bin': File exists
mkdir: can't create directory '/dev': File exists
/init: line 25: can't create /proc/sys/kernel/hotplug: nonexistent directory
mdev: unknown user/group 'root:uucp' on line 34
Attempt to mount partitions: /usr/system /usr/data
Mounting partitions from: /dev/mmcblk1
EXT4-fs (mmcblk1p12): mounted filesystem with ordered data mode. Opts: (null)
random: fast init done
EXT4-fs (mmcblk1p13): recovery complete
EXT4-fs (mmcblk1p13): mounted filesystem with ordered data mode. Opts: (null)
/ #
/ # cat /proc/version
Linux version 5.5.0-00002-g7d506dfcce24 (frowand@xps8900) (gcc version 4.6.x-google 20120106 (prerelease) (GCC)) #7 SMP PREEMPT Tue Jan 28 23:10:47 CST 2020
On 1/28/20 11:46 PM, [email protected] wrote:
> From: Frank Rowand <[email protected]>
>
> Geert reports that gpio hog nodes are not properly processed when
> the gpio hog node is added via an overlay reply and provides an
> RFC patch to fix the problem [1].
>
> Add a unittest that shows the problem. Unittest will report "1 failed"
> test before applying Geert's RFC patch and "0 failed" after applying
> Geert's RFC patch.
>
> I did not have a development system for which it would be easy to
> experiment with applying an overlay containing a gpio hog, so I
> instead created this unittest that uses a fake gpio node.
>
> Some tests in the devicetree unittests result in printk messages
> from the code being tested. It can be difficult to determine
> whether the messages are the result of unittest or are potentially
> reporting bugs that should be fixed. The most recent example of
> a person asking whether to be concerned about these messages is [2].
>
> Patch 2 adds annotations for all messages triggered by unittests,
> except KERN_DEBUG messages. (KERN_DEBUG is a special case due to the
> possible interaction of CONFIG_DYNAMIC_DEBUG.)
>
> The annotations added in patch 2/2 add a small amount of verbosity
> to the console output. I have created a proof of concept tool to
> explore (1) how test harnesses could use the annotations and
> (2) how to make the resulting console output easier to read and
> understand as a human being. The tool 'of_unittest_expect' is
> available at https://github.com/frowand/dt_tools
>
> The format of the annotations is expected to change when unittests
> are converted to use the kunit infrastructure when the broader
> testing community has an opportunity to discuss the implementation
> of annotations of test triggered messages.
>
> [1] https://lore.kernel.org/linux-devicetree/[email protected]/
> [2] https://lore.kernel.org/r/[email protected]
>
> Frank Rowand (2):
> of: unittest: add overlay gpio test to catch gpio hog problem
> of: unittest: annotate warnings triggered by unittest
>
> drivers/of/unittest-data/Makefile | 8 +-
> drivers/of/unittest-data/overlay_gpio_01.dts | 23 +
> drivers/of/unittest-data/overlay_gpio_02a.dts | 16 +
> drivers/of/unittest-data/overlay_gpio_02b.dts | 16 +
> drivers/of/unittest-data/overlay_gpio_03.dts | 23 +
> drivers/of/unittest-data/overlay_gpio_04a.dts | 16 +
> drivers/of/unittest-data/overlay_gpio_04b.dts | 16 +
> drivers/of/unittest.c | 630 ++++++++++++++++++++++++--
> 8 files changed, 717 insertions(+), 31 deletions(-)
> create mode 100644 drivers/of/unittest-data/overlay_gpio_01.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_02a.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_02b.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_03.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_04a.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_04b.dts
>
Console output after patch 2/2 _and_ Geert's RFC patches, filtered
by 'of_unittest_expect':
ndroid Bootloader - UART_DM Initialized!!!
[0] welcome to lk
[10] platform_init()
[10] target_init()
[10] Display Init: Start
[10] display_init(),target_id=10.
[30] Config MIPI_VIDEO_PANEL.
[30] Turn on MIPI_VIDEO_PANEL.
[50] Video lane tested successfully
[50] Display Init: Done
[80] Loading keystore failed status 5 [80] ERROR: scm_protect_keystore Failed[200] USB init ept @ 0xf96b000
[220] fastboot_init()
[220] udc_start()
[340] -- reset --
[350] -- portchange --
[460] -- reset --
[460] -- portchange --
[650] fastboot: processing commands
[780] fastboot: download:00f31000
[1270] fastboot: boot
[1290] Found Appeneded Flattened Device tree
[1290] cmdline: console=ttyMSM0,115200,n8 androidboot.hardware=qcom maxcpus=2 msm_rtb.filter=0x37 ehci-hcd.park=3 norandmaps androidboot.emmc=true androidboot.serialno=40081c41 androidboot.baseband=apq
[1310] Updating device tree: start
[1320] Updating device tree: done
[1320] booting linux @ 0x8000, ramdisk @ 0x2000000 (9533134), tags/device tree @ 0x1e00000
[1330] Turn off MIPI_VIDEO_PANEL.
[1330] Continuous splash enabled, keeping panel alive.
Booting Linux on physical CPU 0x0
Linux version 5.5.0-00002-g7d506dfcce24-dirty (frowand@xps8900) (gcc version 4.6.x-google 20120106 (prerelease) (GCC)) #8 SMP PREEMPT Tue Jan 28 23:13:07 CST 2020
CPU: ARMv7 Processor [512f06f0] revision 0 (ARMv7), cr=10c5787d
CPU: div instructions available: patching division code
CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
OF: fdt: Machine model: Qualcomm APQ8074 Dragonboard
Memory policy: Data cache writealloc
cma: Reserved 256 MiB at 0x70000000
percpu: Embedded 19 pages/cpu s48192 r8192 d21440 u77824
Built 1 zonelists, mobility grouping on. Total pages: 490240
Kernel command line: console=ttyMSM0,115200,n8 androidboot.hardware=qcom maxcpus=2 msm_rtb.filter=0x37 ehci-hcd.park=3 norandmaps androidboot.emmc=true androidboot.serialno=40081c41 androidboot.baseband=apq
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
mem auto-init: stack:off, heap alloc:off, heap free:off
Memory: 1664560K/1967104K available (8192K kernel code, 859K rwdata, 3800K rodata, 1024K init, 268K bss, 40400K reserved, 262144K cma-reserved, 1048576K highmem)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
rcu: Preemptible hierarchical RCU implementation.
Tasks RCU enabled.
rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
random: get_random_bytes called from start_kernel+0x2fc/0x508 with crng_init=0
arch_timer: cp15 and mmio timer(s) running at 19.20MHz (virt/virt).
clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
Switching to timer-based delay loop, resolution 52ns
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x300000 - 0x300060
rcu: Hierarchical SRCU implementation.
smp: Bringing up secondary CPUs ...
CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
smp: Brought up 1 node, 2 CPUs
SMP: Total of 2 processors activated (76.80 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 51 architecture 64 part 6f variant 2 rev 0
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
pinctrl core: initialized pinctrl subsystem
thermal_sys: Registered thermal governor 'step_wise'
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor menu
hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 8 bytes.
iommu: Default domain type: Translated
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource arch_sys_counter
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
TCP: Hash tables configured (established 8192 bind 8192)
UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
PCI: CLS 0 bytes, default 64
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 9312K
hw perfevents: enabled with armv7_krait PMU driver, 5 counters available
Initialise system trusted keyrings
workingset: timestamp_bits=30 max_order=19 bucket_order=0
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
Key type cifs.idmap registered
jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
fuse: init (API version 7.31)
Key type asymmetric registered
Asymmetric key parser 'x509' registered
bounce: pool size: 64 pages
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
io scheduler mq-deadline registered
io scheduler kyber registered
msm_serial f991e000.serial: msm_serial: detected port #0
msm_serial f991e000.serial: uartclk = 7372800
f991e000.serial: ttyMSM0 at MMIO 0xf991e000 (irq = 28, base_baud = 460800) is a MSM
msm_serial: console setup on port #0
printk: console [ttyMSM0] enabled
msm_serial: driver initialized
brd: module loaded
loop: module loaded
SCSI Media Changer driver v0.25
spmi spmi-0: PMIC arbiter version v1 (0x20000002)
s1: supplied by regulator-dummy
s2: supplied by regulator-dummy
s3: supplied by regulator-dummy
s4: Bringing 5100000uV into 5000000-5000000uV
l1: supplied by regulator-dummy
l2: supplied by regulator-dummy
l3: supplied by regulator-dummy
l4: supplied by regulator-dummy
l5: supplied by regulator-dummy
l6: supplied by regulator-dummy
l7: supplied by regulator-dummy
l8: supplied by regulator-dummy
l9: supplied by regulator-dummy
l10: supplied by regulator-dummy
l11: supplied by regulator-dummy
l12: supplied by regulator-dummy
l13: supplied by regulator-dummy
l14: supplied by regulator-dummy
l15: supplied by regulator-dummy
l16: supplied by regulator-dummy
l17: supplied by regulator-dummy
l18: supplied by regulator-dummy
l19: supplied by regulator-dummy
l20: supplied by regulator-dummy
l21: supplied by regulator-dummy
l22: supplied by regulator-dummy
l23: supplied by regulator-dummy
l24: supplied by regulator-dummy
lvs1: supplied by regulator-dummy
lvs2: supplied by regulator-dummy
lvs3: supplied by regulator-dummy
5vs1: supplied by s4
5vs2: supplied by s4
libphy: Fixed MDIO Bus: probed
SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled).
CSLIP: code copyright 1989 Regents of the University of California.
usbcore: registered new interface driver ax88179_178a
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver net1080
usbcore: registered new interface driver cdc_subset
usbcore: registered new interface driver cdc_ncm
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
usbcore: registered new interface driver cdc_acm
cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
rtc-pm8xxx fc4cf000.spmi:pm8941@0:rtc@6000: registered as rtc0
i2c /dev entries driver
qcom-smbb fc4cf000.spmi:pm8941@0:charger@1000: Initializing SMBB rev 3
otg-vbus: supplied by 5vs1
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
cpuidle: enable-method property 'qcom,kpss-acc-v2' found operations
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
sdhci_msm f98a4900.sdhci: Got CD GPIO
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using timer interrupt.
NET: Registered protocol family 17
Key type dns_resolver registered
Registering SWP/SWPB emulation handler
Loading compiled-in X.509 certificates
debugfs: Directory 'fc4a9000.thermal-sensor' with parent 'tsens' already present!
sdhci_msm f98a4900.sdhci: Got CD GPIO
s1: supplied by regulator-dummy
s1: Bringing 0uV into 675000-675000uV
s2: supplied by regulator-dummy
s2: Bringing 0uV into 500000-500000uV
sdhci_msm f98a4900.sdhci: Got CD GPIO
s3: supplied by regulator-dummy
s3: Bringing 0uV into 500000-500000uV
s4: supplied by regulator-dummy
s4: Bringing 0uV into 500000-500000uV
sdhci_msm f98a4900.sdhci: Got CD GPIO
s5: supplied by regulator-dummy
s6: supplied by regulator-dummy
rtc-pm8xxx fc4cf000.spmi:pm8941@0:rtc@6000: setting system clock to 1970-01-17T00:07:48 UTC (1382868)
-> ### dt-test ### start of unittest - you will see error messages
ok Duplicate name in testcase-data, renamed to "duplicate-name#1"
s7: supplied by regulator-dummy
s8: supplied by regulator-dummy
ok OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
s1: supplied by regulator-dummy
s1: Bringing 0uV into 1300000-1300000uV
ok OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
s2: supplied by regulator-dummy
s2: Bringing 0uV into 2150000-2150000uV
ok OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
sdhci_msm f98a4900.sdhci: Got CD GPIO
s3: supplied by regulator-dummy
ok OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
s3: Bringing 0uV into 1800000-1800000uV
l1: supplied by s1
ok OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
l1: Bringing 0uV into 1225000-1225000uV
l2: supplied by s3
ok OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
l2: Bringing 0uV into 1200000-1200000uV
l3: supplied by s1
ok OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1
l3: Bringing 0uV into 1225000-1225000uV
l4: supplied by s1
ok OF: /testcase-data/phandle-tests/consumer-b: could not find phandle
l4: Bringing 0uV into 1225000-1225000uV
l5: supplied by s2
ok OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1
l5: Bringing 0uV into 1800000-1800000uV
l6: supplied by s2
ok platform testcase-data:testcase-device2: IRQ index 0 not found
l6: Bringing 0uV into 1800000-1800000uV
l7: supplied by s2
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status
l7: Bringing 0uV into 1800000-1800000uV
sdhci_msm f98a4900.sdhci: Got CD GPIO
l8: supplied by regulator-dummy
l8: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status
l9: supplied by regulator-dummy
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status
l9: Bringing 0uV into 1800000-1800000uV
l10: supplied by regulator-dummy
l10: Bringing 0uV into 1800000-1800000uV
sdhci_msm f98a4900.sdhci: Got CD GPIO
l11: supplied by s1
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status
sdhci_msm f98a4900.sdhci: Got CD GPIO
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status
l11: Bringing 0uV into 1300000-1300000uV
l12: supplied by s2
l12: Bringing 0uV into 1800000-1800000uV
sdhci_msm f98a4900.sdhci: Got CD GPIO
l13: supplied by regulator-dummy
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status
sdhci_msm f98a4900.sdhci: Got CD GPIO
l13: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status
l14: supplied by s2
l14: Bringing 0uV into 1800000-1800000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status
sdhci_msm f98a4900.sdhci: Got CD GPIO
l15: supplied by s2
l15: Bringing 0uV into 2050000-2050000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo
l16: supplied by regulator-dummy
ok OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8
l16: Bringing 0uV into 2700000-2700000uV
ok OF: overlay: overlay #6 is not topmost
sdhci_msm f98a4900.sdhci: Got CD GPIO
l17: supplied by regulator-dummy
ok i2c i2c-1: Added multiplexed i2c bus 2
l17: Bringing 0uV into 2700000-2700000uV
l18: supplied by regulator-dummy
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status
l18: Bringing 0uV into 2850000-2850000uV
l19: supplied by regulator-dummy
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status
l19: Bringing 0uV into 3300000-3300000uV
sdhci_msm f98a4900.sdhci: Got CD GPIO
l20: supplied by regulator-dummy
l20: Bringing 0uV into 2950000-2950000uV
ok i2c i2c-1: Added multiplexed i2c bus 3
sdhci_msm f98a4900.sdhci: Got CD GPIO
l21: supplied by regulator-dummy
l21: Bringing 0uV into 2950000-2950000uV
l22: supplied by regulator-dummy
l22: Bringing 0uV into 3000000-3000000uV
ok GPIO line 315 (line-B-input) hogged as input
l23: supplied by regulator-dummy
ok GPIO line 309 (line-A-input) hogged as input
l23: Bringing 0uV into 3000000-3000000uV
l24: supplied by regulator-dummy
l24: Bringing 0uV into 3075000-3075000uV
lvs1: supplied by s3
ok GPIO line 307 (line-D-input) hogged as input
lvs2: supplied by s3
lvs3: supplied by s3
mmc0: SDHCI controller on f9824900.sdhci [f9824900.sdhci] using ADMA
ok GPIO line 301 (line-C-input) hogged as input
5vs1: supplied by s4
sdhci_msm f98a4900.sdhci: Got CD GPIO
5vs2: supplied by s4
mmc1: SDHCI controller on f98a4900.sdhci [f98a4900.sdhci] using ADMA
mmc0: new HS200 MMC card at address 0001
mmcblk0: mmc0:0001 SEM16G 14.7 GiB
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status
mmcblk0boot0: mmc0:0001 SEM16G partition 1 4.00 MiB
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status
mmcblk0boot1: mmc0:0001 SEM16G partition 2 4.00 MiB
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up
mmc1: new ultra high speed DDR50 SDHC card at address aaaa
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status
mmcblk0rpmb: mmc0:0001 SEM16G partition 3 4.00 MiB, chardev (247:0)
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color
mmcblk1: mmc1:aaaa SU16G 14.8 GiB
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate
mmcblk1: p1
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2
mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15 p16 p17 p18 p19 p20
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right
ok OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller
ok OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
ok OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail
-> ### dt-test ### end of unittest - 259 passed, 0 failed
ALSA devic[ 4.369133] Freeing unused kernel memory: 1024K
Run /init as init process
mkdir: can't create directory '/bin': File exists
mkdir: can't create directory '/dev': File exists
/init: line 25: can't create /proc/sys/kernel/hotplug: nonexistent directory
mdev: unknown user/group 'root:uucp' on line 34
Attempt to mount partitions: /usr/system /usr/data
Mounting partitions from: /dev/mmcblk0
EXT4-fs (mmcblk0p12): mounted filesystem with ordered data mode. Opts: (null)
random: fast init done
EXT4-fs (mmcblk0p13): recovery complete
EXT4-fs (mmcblk0p13): mounted filesystem with ordered data mode. Opts: (null)
/ #
/ # cat /proc/version
Linux version 5.5.0-00002-g7d506dfcce24-dirty (frowand@xps8900) (gcc version 4.6.x-google 20120106 (prerelease) (GCC)) #8 SMP PREEMPT Tue Jan 28 23:13:07 CST 2020 patch 2/2 _and_ Geert's RFC patches, filtered by 'of_unittest_expect':
On Tue, Jan 28, 2020 at 11:46:04PM -0600, [email protected] wrote:
> From: Frank Rowand <[email protected]>
>
> Geert reports that gpio hog nodes are not properly processed when
> the gpio hog node is added via an overlay reply and provides an
> RFC patch to fix the problem [1].
>
> Add a unittest that shows the problem. Unittest will report "1 failed"
> test before applying Geert's RFC patch and "0 failed" after applying
> Geert's RFC patch.
What's the status of that? I don't want to leave the tests failing at
least outside of a kernel release.
>
> [1] https://lore.kernel.org/linux-devicetree/[email protected]/
>
> Signed-off-by: Frank Rowand <[email protected]>
> ---
>
> There are checkpatch warnings.
> - New files are in a directory already covered by MAINTAINERS
> - The undocumented compatibles are restricted to use by unittest
> and should not be documented under Documentation
> - The printk() KERN_<LEVEL> warnings are false positives. The level
> is supplied by a define parameter instead of a hard coded constant
> - The lines over 80 characters are consistent with unittest.c style
>
> This unittest was also valuable in that it allowed me to explore
> possible issues related to the proposed solution to the gpio hog
> problem.
>
> changes since RFC:
> - fixed node names in overlays
> - removed unused fields from struct unittest_gpio_dev
> - of_unittest_overlay_gpio() cleaned up comments
> - of_unittest_overlay_gpio() moved saving global values into
> probe_pass_count and chip_request_count more tightly around
> test code expected to trigger changes in the global values
>
> drivers/of/unittest-data/Makefile | 8 +-
> drivers/of/unittest-data/overlay_gpio_01.dts | 23 +++
> drivers/of/unittest-data/overlay_gpio_02a.dts | 16 ++
> drivers/of/unittest-data/overlay_gpio_02b.dts | 16 ++
> drivers/of/unittest-data/overlay_gpio_03.dts | 23 +++
> drivers/of/unittest-data/overlay_gpio_04a.dts | 16 ++
> drivers/of/unittest-data/overlay_gpio_04b.dts | 16 ++
> drivers/of/unittest.c | 255 ++++++++++++++++++++++++++
> 8 files changed, 372 insertions(+), 1 deletion(-)
> create mode 100644 drivers/of/unittest-data/overlay_gpio_01.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_02a.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_02b.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_03.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_04a.dts
> create mode 100644 drivers/of/unittest-data/overlay_gpio_04b.dts
>
> diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
> index 9b6807065827..009f4045c8e4 100644
> --- a/drivers/of/unittest-data/Makefile
> +++ b/drivers/of/unittest-data/Makefile
> @@ -21,7 +21,13 @@ obj-$(CONFIG_OF_OVERLAY) += overlay.dtb.o \
> overlay_bad_add_dup_prop.dtb.o \
> overlay_bad_phandle.dtb.o \
> overlay_bad_symbol.dtb.o \
> - overlay_base.dtb.o
> + overlay_base.dtb.o \
> + overlay_gpio_01.dtb.o \
> + overlay_gpio_02a.dtb.o \
> + overlay_gpio_02b.dtb.o \
> + overlay_gpio_03.dtb.o \
> + overlay_gpio_04a.dtb.o \
> + overlay_gpio_04b.dtb.o
>
> # enable creation of __symbols__ node
> DTC_FLAGS_overlay += -@
> diff --git a/drivers/of/unittest-data/overlay_gpio_01.dts b/drivers/of/unittest-data/overlay_gpio_01.dts
> new file mode 100644
> index 000000000000..f039e8bce3b6
> --- /dev/null
> +++ b/drivers/of/unittest-data/overlay_gpio_01.dts
> @@ -0,0 +1,23 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/dts-v1/;
> +/plugin/;
> +
> +&unittest_test_bus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + gpio_01 {
Missing unit address:
gpio@0
> + compatible = "unittest-gpio";
> + reg = <0>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + ngpios = <2>;
> + gpio-line-names = "line-A", "line-B";
> +
> + line_b {
Don't use '_'.
line-b
> + gpio-hog;
> + gpios = <2 0>;
> + input;
> + line-name = "line-B-input";
> + };
> + };
> +};
> diff --git a/drivers/of/unittest-data/overlay_gpio_02a.dts b/drivers/of/unittest-data/overlay_gpio_02a.dts
> new file mode 100644
> index 000000000000..cdafab604793
> --- /dev/null
> +++ b/drivers/of/unittest-data/overlay_gpio_02a.dts
> @@ -0,0 +1,16 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/dts-v1/;
> +/plugin/;
> +
> +&unittest_test_bus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + gpio_02 {
gpio@1
...and a few more.
> + compatible = "unittest-gpio";
> + reg = <1>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + ngpios = <2>;
> + gpio-line-names = "line-A", "line-B";
> + };
> +};
On 2/19/20 3:56 PM, Rob Herring wrote:
> On Tue, Jan 28, 2020 at 11:46:04PM -0600, [email protected] wrote:
>> From: Frank Rowand <[email protected]>
>>
>> Geert reports that gpio hog nodes are not properly processed when
>> the gpio hog node is added via an overlay reply and provides an
>> RFC patch to fix the problem [1].
>>
>> Add a unittest that shows the problem. Unittest will report "1 failed"
>> test before applying Geert's RFC patch and "0 failed" after applying
>> Geert's RFC patch.
>
> What's the status of that? I don't want to leave the tests failing at
> least outside of a kernel release.
I agree. I would like to see my patches applied, showing the test fail,
immediately followed by Geert's fix. So my series should not go in
until Geert's patch is ready.
>
>>
>> [1] https://lore.kernel.org/linux-devicetree/[email protected]/
>>
>> Signed-off-by: Frank Rowand <[email protected]>
>> ---
>>
>> There are checkpatch warnings.
>> - New files are in a directory already covered by MAINTAINERS
>> - The undocumented compatibles are restricted to use by unittest
>> and should not be documented under Documentation
>> - The printk() KERN_<LEVEL> warnings are false positives. The level
>> is supplied by a define parameter instead of a hard coded constant
>> - The lines over 80 characters are consistent with unittest.c style
>>
>> This unittest was also valuable in that it allowed me to explore
>> possible issues related to the proposed solution to the gpio hog
>> problem.
>>
>> changes since RFC:
>> - fixed node names in overlays
>> - removed unused fields from struct unittest_gpio_dev
>> - of_unittest_overlay_gpio() cleaned up comments
>> - of_unittest_overlay_gpio() moved saving global values into
>> probe_pass_count and chip_request_count more tightly around
>> test code expected to trigger changes in the global values
>>
>> drivers/of/unittest-data/Makefile | 8 +-
>> drivers/of/unittest-data/overlay_gpio_01.dts | 23 +++
>> drivers/of/unittest-data/overlay_gpio_02a.dts | 16 ++
>> drivers/of/unittest-data/overlay_gpio_02b.dts | 16 ++
>> drivers/of/unittest-data/overlay_gpio_03.dts | 23 +++
>> drivers/of/unittest-data/overlay_gpio_04a.dts | 16 ++
>> drivers/of/unittest-data/overlay_gpio_04b.dts | 16 ++
>> drivers/of/unittest.c | 255 ++++++++++++++++++++++++++
>> 8 files changed, 372 insertions(+), 1 deletion(-)
>> create mode 100644 drivers/of/unittest-data/overlay_gpio_01.dts
>> create mode 100644 drivers/of/unittest-data/overlay_gpio_02a.dts
>> create mode 100644 drivers/of/unittest-data/overlay_gpio_02b.dts
>> create mode 100644 drivers/of/unittest-data/overlay_gpio_03.dts
>> create mode 100644 drivers/of/unittest-data/overlay_gpio_04a.dts
>> create mode 100644 drivers/of/unittest-data/overlay_gpio_04b.dts
>>
>> diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
>> index 9b6807065827..009f4045c8e4 100644
>> --- a/drivers/of/unittest-data/Makefile
>> +++ b/drivers/of/unittest-data/Makefile
>> @@ -21,7 +21,13 @@ obj-$(CONFIG_OF_OVERLAY) += overlay.dtb.o \
>> overlay_bad_add_dup_prop.dtb.o \
>> overlay_bad_phandle.dtb.o \
>> overlay_bad_symbol.dtb.o \
>> - overlay_base.dtb.o
>> + overlay_base.dtb.o \
>> + overlay_gpio_01.dtb.o \
>> + overlay_gpio_02a.dtb.o \
>> + overlay_gpio_02b.dtb.o \
>> + overlay_gpio_03.dtb.o \
>> + overlay_gpio_04a.dtb.o \
>> + overlay_gpio_04b.dtb.o
>>
>> # enable creation of __symbols__ node
>> DTC_FLAGS_overlay += -@
>> diff --git a/drivers/of/unittest-data/overlay_gpio_01.dts b/drivers/of/unittest-data/overlay_gpio_01.dts
>> new file mode 100644
>> index 000000000000..f039e8bce3b6
>> --- /dev/null
>> +++ b/drivers/of/unittest-data/overlay_gpio_01.dts
>> @@ -0,0 +1,23 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/dts-v1/;
>> +/plugin/;
>> +
>> +&unittest_test_bus {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + gpio_01 {
>
> Missing unit address:
>
> gpio@0
But my changelog claimed that I fixed that, isn't that
good enough? :-)
/me pulls big brown paper bag over head.
And the same for all the issues you point out below, for the
second patch version in a row.
I'll re-spin on 5.6-rc1 and truly include the fixes.
-Frank
>
>
>> + compatible = "unittest-gpio";
>> + reg = <0>;
>> + gpio-controller;
>> + #gpio-cells = <2>;
>> + ngpios = <2>;
>> + gpio-line-names = "line-A", "line-B";
>> +
>> + line_b {
>
> Don't use '_'.
>
> line-b
>
>> + gpio-hog;
>> + gpios = <2 0>;
>> + input;
>> + line-name = "line-B-input";
>> + };
>> + };
>> +};
>> diff --git a/drivers/of/unittest-data/overlay_gpio_02a.dts b/drivers/of/unittest-data/overlay_gpio_02a.dts
>> new file mode 100644
>> index 000000000000..cdafab604793
>> --- /dev/null
>> +++ b/drivers/of/unittest-data/overlay_gpio_02a.dts
>> @@ -0,0 +1,16 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/dts-v1/;
>> +/plugin/;
>> +
>> +&unittest_test_bus {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + gpio_02 {
>
> gpio@1
>
> ...and a few more.
>
>> + compatible = "unittest-gpio";
>> + reg = <1>;
>> + gpio-controller;
>> + #gpio-cells = <2>;
>> + ngpios = <2>;
>> + gpio-line-names = "line-A", "line-B";
>> + };
>> +};
>
On 2/19/20 5:37 PM, Frank Rowand wrote:
> On 2/19/20 3:56 PM, Rob Herring wrote:
>> On Tue, Jan 28, 2020 at 11:46:04PM -0600, [email protected] wrote:
>>> From: Frank Rowand <[email protected]>
>>>
>>> Geert reports that gpio hog nodes are not properly processed when
>>> the gpio hog node is added via an overlay reply and provides an
>>> RFC patch to fix the problem [1].
>>>
>>> Add a unittest that shows the problem. Unittest will report "1 failed"
>>> test before applying Geert's RFC patch and "0 failed" after applying
>>> Geert's RFC patch.
>>
>> What's the status of that? I don't want to leave the tests failing at
>> least outside of a kernel release.
>
> I agree. I would like to see my patches applied, showing the test fail,
> immediately followed by Geert's fix. So my series should not go in
> until Geert's patch is ready.
Geert has sent a v2 patch series.
I have sent a v2 of this patch, tested with v2 of Geert's patch series.
-Frank
>
>>
>>>
>>> [1] https://lore.kernel.org/linux-devicetree/[email protected]/
>>>
>>> Signed-off-by: Frank Rowand <[email protected]>
>>> ---
>>>
>>> There are checkpatch warnings.
>>> - New files are in a directory already covered by MAINTAINERS
>>> - The undocumented compatibles are restricted to use by unittest
>>> and should not be documented under Documentation
>>> - The printk() KERN_<LEVEL> warnings are false positives. The level
>>> is supplied by a define parameter instead of a hard coded constant
>>> - The lines over 80 characters are consistent with unittest.c style
>>>
>>> This unittest was also valuable in that it allowed me to explore
>>> possible issues related to the proposed solution to the gpio hog
>>> problem.
>>>
>>> changes since RFC:
>>> - fixed node names in overlays
>>> - removed unused fields from struct unittest_gpio_dev
>>> - of_unittest_overlay_gpio() cleaned up comments
>>> - of_unittest_overlay_gpio() moved saving global values into
>>> probe_pass_count and chip_request_count more tightly around
>>> test code expected to trigger changes in the global values
>>>
>>> drivers/of/unittest-data/Makefile | 8 +-
>>> drivers/of/unittest-data/overlay_gpio_01.dts | 23 +++
>>> drivers/of/unittest-data/overlay_gpio_02a.dts | 16 ++
>>> drivers/of/unittest-data/overlay_gpio_02b.dts | 16 ++
>>> drivers/of/unittest-data/overlay_gpio_03.dts | 23 +++
>>> drivers/of/unittest-data/overlay_gpio_04a.dts | 16 ++
>>> drivers/of/unittest-data/overlay_gpio_04b.dts | 16 ++
>>> drivers/of/unittest.c | 255 ++++++++++++++++++++++++++
>>> 8 files changed, 372 insertions(+), 1 deletion(-)
>>> create mode 100644 drivers/of/unittest-data/overlay_gpio_01.dts
>>> create mode 100644 drivers/of/unittest-data/overlay_gpio_02a.dts
>>> create mode 100644 drivers/of/unittest-data/overlay_gpio_02b.dts
>>> create mode 100644 drivers/of/unittest-data/overlay_gpio_03.dts
>>> create mode 100644 drivers/of/unittest-data/overlay_gpio_04a.dts
>>> create mode 100644 drivers/of/unittest-data/overlay_gpio_04b.dts
>>>
>>> diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
>>> index 9b6807065827..009f4045c8e4 100644
>>> --- a/drivers/of/unittest-data/Makefile
>>> +++ b/drivers/of/unittest-data/Makefile
>>> @@ -21,7 +21,13 @@ obj-$(CONFIG_OF_OVERLAY) += overlay.dtb.o \
>>> overlay_bad_add_dup_prop.dtb.o \
>>> overlay_bad_phandle.dtb.o \
>>> overlay_bad_symbol.dtb.o \
>>> - overlay_base.dtb.o
>>> + overlay_base.dtb.o \
>>> + overlay_gpio_01.dtb.o \
>>> + overlay_gpio_02a.dtb.o \
>>> + overlay_gpio_02b.dtb.o \
>>> + overlay_gpio_03.dtb.o \
>>> + overlay_gpio_04a.dtb.o \
>>> + overlay_gpio_04b.dtb.o
>>>
>>> # enable creation of __symbols__ node
>>> DTC_FLAGS_overlay += -@
>>> diff --git a/drivers/of/unittest-data/overlay_gpio_01.dts b/drivers/of/unittest-data/overlay_gpio_01.dts
>>> new file mode 100644
>>> index 000000000000..f039e8bce3b6
>>> --- /dev/null
>>> +++ b/drivers/of/unittest-data/overlay_gpio_01.dts
>>> @@ -0,0 +1,23 @@
>>> +// SPDX-License-Identifier: GPL-2.0
>>> +/dts-v1/;
>>> +/plugin/;
>>> +
>>> +&unittest_test_bus {
>>> + #address-cells = <1>;
>>> + #size-cells = <0>;
>>> + gpio_01 {
>>
>> Missing unit address:
>>
>> gpio@0
>
> But my changelog claimed that I fixed that, isn't that
> good enough? :-)
>
> /me pulls big brown paper bag over head.
>
> And the same for all the issues you point out below, for the
> second patch version in a row.
>
> I'll re-spin on 5.6-rc1 and truly include the fixes.
>
> -Frank
>
>
>>
>>
>>> + compatible = "unittest-gpio";
>>> + reg = <0>;
>>> + gpio-controller;
>>> + #gpio-cells = <2>;
>>> + ngpios = <2>;
>>> + gpio-line-names = "line-A", "line-B";
>>> +
>>> + line_b {
>>
>> Don't use '_'.
>>
>> line-b
>>
>>> + gpio-hog;
>>> + gpios = <2 0>;
>>> + input;
>>> + line-name = "line-B-input";
>>> + };
>>> + };
>>> +};
>>> diff --git a/drivers/of/unittest-data/overlay_gpio_02a.dts b/drivers/of/unittest-data/overlay_gpio_02a.dts
>>> new file mode 100644
>>> index 000000000000..cdafab604793
>>> --- /dev/null
>>> +++ b/drivers/of/unittest-data/overlay_gpio_02a.dts
>>> @@ -0,0 +1,16 @@
>>> +// SPDX-License-Identifier: GPL-2.0
>>> +/dts-v1/;
>>> +/plugin/;
>>> +
>>> +&unittest_test_bus {
>>> + #address-cells = <1>;
>>> + #size-cells = <0>;
>>> + gpio_02 {
>>
>> gpio@1
>>
>> ...and a few more.
>>
>>> + compatible = "unittest-gpio";
>>> + reg = <1>;
>>> + gpio-controller;
>>> + #gpio-cells = <2>;
>>> + ngpios = <2>;
>>> + gpio-line-names = "line-A", "line-B";
>>> + };
>>> +};
>>
>
>