Device Tree unittest

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Enable

Enable unit tests through config option CONFIG_OF_UNITTEST

  • Device Drivers ---> Device Tree and Open Firmware support ---> Device Tree runtime unit tests

Run

The unit tests will be performed near the end of the boot sequence. The start of the tests is indicated by: 

### dt-test ### start of unittest - you will see error messages

An example test result summary is: 

### dt-test ### end of unittest - 148 passed, 0 failed

Expected Errors and Warnings

The actual test result is shown at the end of the test in the test result summary, which reports number of tests passed and number of tests failed.

The unittests invoke various devicetree functions, which may report warnings and/or errors to the console, even when a unittest passes. This has led to some confusion as to whether a unittest has unexpectedly triggered a kernel error and/or warning, or if the error and/or warning is an expected result.

Annotations were added by v5.7 commit 0ac174397940 ("of: unittest: annotate warnings triggered by unittest") to remove the confusion. One drawback of the annotations is added console verbosity and a need to compare the expected errors and warnings to the actual errors and warnings manually.

A filter tool of_unittest_expect was written to filter the extra console annotation messages. There are also extraneous asynchronous messages from parts of the boot process that are unrelated to unittest. of_unittest_expect does not remove the unrelated messages.

of_unittest_expect is not yet in mainline, but can be downloaded from https://github.com/frowand/dt_tools 

The two following examples are console messages during unittest from 5.11-rc6 on a dragonboard 8074

   (1) raw console messages
   (2) raw console messages filtered by of_unittest_expect

EXAMPLE of raw console messages during unittest

### dt-test ### start of unittest - you will see error messages
s4: supplied by regulator-dummy
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
s5: supplied by regulator-dummy
### dt-test ### EXPECT \ : Duplicate name in testcase-data, renamed to "duplicate-name#1"
Duplicate name in testcase-data, renamed to "duplicate-name#1"
s6: supplied by regulator-dummy
### dt-test ### EXPECT / : Duplicate name in testcase-data, renamed to "duplicate-name#1"
s7: supplied by regulator-dummy
### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
s8: supplied by regulator-dummy
OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
s1: Bringing 0uV into 1300000-1300000uV
### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
s1: supplied by regulator-dummy
OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
s2: Bringing 0uV into 2150000-2150000uV
### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
s2: supplied by regulator-dummy
OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
s3: Bringing 0uV into 1800000-1800000uV
### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
s3: supplied by regulator-dummy
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
l1: Bringing 0uV into 1225000-1225000uV
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
l1: supplied by s1
OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
l2: Bringing 0uV into 1200000-1200000uV
### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
l2: supplied by s3
### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
l3: Bringing 0uV into 1225000-1225000uV
OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
l3: supplied by s1
### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
l4: Bringing 0uV into 1225000-1225000uV
### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
l4: supplied by s1
### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1
l5: Bringing 0uV into 1800000-1800000uV
OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1
l5: supplied by s2
### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1
l6: Bringing 0uV into 1800000-1800000uV
### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-b: could not find phandle
l6: supplied by s2
OF: /testcase-data/phandle-tests/consumer-b: could not find phandle
l7: Bringing 0uV into 1800000-1800000uV
### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-b: could not find phandle
l7: supplied by s2
### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1
OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1
l8: Bringing 0uV into 1800000-1800000uV
### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1
l8: supplied by regulator-dummy
### dt-test ### FAIL of_unittest_dma_ranges_one():922 of_dma_get_range: wrong DMA addr 0x00000000 (expecting 100000000) on node /testcase-data/address-tests/bus@80000000/device@
1000
l9: Bringing 0uV into 1800000-1800000uV
### dt-test ### EXPECT \ : platform testcase-data:testcase-device2: IRQ index 0 not found
l9: supplied by regulator-dummy
platform testcase-data:testcase-device2: IRQ index 0 not found
l10: Bringing 0uV into 1800000-1800000uV
### dt-test ### EXPECT / : platform testcase-data:testcase-device2: IRQ index 0 not found
l10: supplied by regulator-dummy
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status
l11: Bringing 0uV into 1300000-1300000uV
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
l11: supplied by s1
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
l12: Bringing 0uV into 1800000-1800000uV
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
l12: supplied by s2
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status
l13: Bringing 0uV into 1800000-1800000uV
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status
l13: supplied by regulator-dummy
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status
l14: Bringing 0uV into 1800000-1800000uV
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
l14: supplied by s2
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status
l15: Bringing 0uV into 2050000-2050000uV
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status
l15: supplied by s2
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status
l16: Bringing 0uV into 2700000-2700000uV
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status
l16: supplied by regulator-dummy
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
l17: Bringing 0uV into 2700000-2700000uV
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status
l17: supplied by regulator-dummy
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status
l18: Bringing 0uV into 2850000-2850000uV
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status
l18: supplied by regulator-dummy
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status
l19: Bringing 0uV into 3300000-3300000uV
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
l19: supplied by regulator-dummy
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status
l20: Bringing 0uV into 2950000-2950000uV
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status
l20: supplied by regulator-dummy
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
l21: Bringing 0uV into 2950000-2950000uV
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status
l21: supplied by regulator-dummy
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status
l22: Bringing 0uV into 3000000-3000000uV
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status
l22: supplied by regulator-dummy
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status
l23: Bringing 0uV into 3000000-3000000uV
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo
### dt-test ### EXPECT \ : OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8
l23: supplied by regulator-dummy
### dt-test ### EXPECT \ : OF: overlay: overlay #6 is not topmost
OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8
l24: Bringing 0uV into 3075000-3075000uV
OF: overlay: overlay #6 is not topmost
### dt-test ### EXPECT / : OF: overlay: overlay #6 is not topmost
### dt-test ### EXPECT / : OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8
l24: supplied by regulator-dummy
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
lvs1: supplied by s3
### dt-test ### EXPECT \ : i2c i2c-1: Added multiplexed i2c bus 2
lvs2: supplied by s3
i2c i2c-0: Added multiplexed i2c bus 1
lvs3: supplied by s3
### dt-test ### EXPECT / : i2c i2c-1: Added multiplexed i2c bus 2
5vs1: supplied by s4
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status
5vs2: supplied by s4
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status
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: deferred probe timeout, ignoring dependency
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status
### dt-test ### EXPECT \ : i2c i2c-1: Added multiplexed i2c bus 3
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
i2c i2c-0: Added multiplexed i2c bus 2
### dt-test ### EXPECT / : i2c i2c-1: Added multiplexed i2c bus 3
### dt-test ### EXPECT \ : GPIO line <<int>> (line-B-input) hogged as input
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT \ : GPIO line <<int>> (line-A-input) hogged as input
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
gpio-461 (line-B-input): hogged as input
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
gpio-455 (line-A-input): hogged as input
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT / : GPIO line <<int>> (line-A-input) hogged as input
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT / : GPIO line <<int>> (line-B-input) hogged as input
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT \ : GPIO line <<int>> (line-D-input) hogged as input
gpio-453 (line-D-input): hogged as input
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT / : GPIO line <<int>> (line-D-input) hogged as input
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT \ : GPIO line <<int>> (line-C-input) hogged as input
gpio-447 (line-C-input): hogged as input
i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT / : GPIO line <<int>> (line-C-input) hogged as input
sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left
### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status
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
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status
### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status
### dt-test ### EXPECT \ : OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller
### dt-test ### EXPECT \ : OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name
OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller
OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name
### dt-test ### EXPECT / : OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name
### dt-test ### EXPECT / : OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller
### dt-test ### EXPECT \ : OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric
### dt-test ### EXPECT \ : OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail
### dt-test ### EXPECT \ : OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name
OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric
OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail
OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name
### dt-test ### EXPECT / : OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name
### dt-test ### EXPECT / : OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail
### dt-test ### EXPECT / : OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric
### dt-test ### end of unittest - 256 passed, 1 failed

EXAMPLE of raw console messages filtered by of_unittest_expect

The expect annotation messages are removed.

Prefix tags are added:
  ->  begin and end of test
  ok  an expected error or warning occurred
  **  an expected error or warning did not occur
  >>  a unittest failed

-> ### dt-test ### start of unittest - you will see error messages
   s4: supplied by regulator-dummy
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
   s5: supplied by regulator-dummy
ok Duplicate name in testcase-data, renamed to "duplicate-name#1"
   s6: supplied by regulator-dummy
   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: Bringing 0uV into 1300000-1300000uV
   s1: supplied by regulator-dummy
ok OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
   s2: Bringing 0uV into 2150000-2150000uV
   s2: supplied by regulator-dummy
ok OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   s3: Bringing 0uV into 1800000-1800000uV
   s3: supplied by regulator-dummy
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
   l1: Bringing 0uV into 1225000-1225000uV
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
   l1: supplied by s1
ok OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
   l2: Bringing 0uV into 1200000-1200000uV
   l2: supplied by s3
   l3: Bringing 0uV into 1225000-1225000uV
ok OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
   l3: supplied by s1
   l4: Bringing 0uV into 1225000-1225000uV
ok OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
   l4: supplied by s1
   l5: Bringing 0uV into 1800000-1800000uV
ok OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1
   l5: supplied by s2
   l6: Bringing 0uV into 1800000-1800000uV
   l6: supplied by s2
ok OF: /testcase-data/phandle-tests/consumer-b: could not find phandle
   l7: Bringing 0uV into 1800000-1800000uV
   l7: supplied by s2
ok OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1
   l8: Bringing 0uV into 1800000-1800000uV
   l8: supplied by regulator-dummy
>> ### dt-test ### FAIL of_unittest_dma_ranges_one():922 of_dma_get_range: wrong DMA addr 0x00000000 (expecting 100000000) on node /testcase-data/address-tests/bus@80000000/device@
   1000
   l9: Bringing 0uV into 1800000-1800000uV
   l9: supplied by regulator-dummy
ok platform testcase-data:testcase-device2: IRQ index 0 not found
   l10: Bringing 0uV into 1800000-1800000uV
   l10: supplied by regulator-dummy
   l11: Bringing 0uV into 1300000-1300000uV
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   l11: supplied by s1
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
   l12: Bringing 0uV into 1800000-1800000uV
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
   l12: supplied by s2
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status
   l13: Bringing 0uV into 1800000-1800000uV
   l13: supplied by regulator-dummy
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status
   l14: Bringing 0uV into 1800000-1800000uV
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   l14: supplied by s2
   l15: Bringing 0uV into 2050000-2050000uV
   l15: supplied by s2
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
   l16: Bringing 0uV into 2700000-2700000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status
   l16: supplied by regulator-dummy
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   l17: Bringing 0uV into 2700000-2700000uV
   l17: supplied by regulator-dummy
   l18: Bringing 0uV into 2850000-2850000uV
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status
   l18: supplied by regulator-dummy
   l19: Bringing 0uV into 3300000-3300000uV
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   l19: 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
   l20: Bringing 0uV into 2950000-2950000uV
   l20: supplied by regulator-dummy
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   l21: Bringing 0uV into 2950000-2950000uV
   l21: supplied by regulator-dummy
   l22: Bringing 0uV into 3000000-3000000uV
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status
   l22: supplied by regulator-dummy
   l23: Bringing 0uV into 3000000-3000000uV
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo
   l23: supplied by regulator-dummy
ok OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8
   l24: Bringing 0uV into 3075000-3075000uV
ok OF: overlay: overlay #6 is not topmost
   l24: supplied by regulator-dummy
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   lvs1: supplied by s3
   lvs2: supplied by s3
   i2c i2c-0: Added multiplexed i2c bus 1
   lvs3: supplied by s3
** of_unittest_expect WARNING - not found ---> i2c i2c-1: Added multiplexed i2c bus 2
   5vs1: supplied by s4
   5vs2: supplied by s4
ok OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
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: deferred probe timeout, ignoring dependency
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   i2c i2c-0: Added multiplexed i2c bus 2
** of_unittest_expect WARNING - not found ---> i2c i2c-1: Added multiplexed i2c bus 3
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
   gpio-461 (line-B-input): hogged as input
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   gpio-455 (line-A-input): hogged as input
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
** of_unittest_expect WARNING - not found ---> GPIO line <<int>> (line-A-input) hogged as input
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
** of_unittest_expect WARNING - not found ---> GPIO line <<int>> (line-B-input) hogged as input
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
   gpio-453 (line-D-input): hogged as input
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
** of_unittest_expect WARNING - not found ---> GPIO line <<int>> (line-D-input) hogged as input
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
   gpio-447 (line-C-input): hogged as input
   i2c_qup f9967000.i2c: deferred probe timeout, ignoring dependency
   sdhci_msm f9824900.sdhci: deferred probe timeout, ignoring dependency
** of_unittest_expect WARNING - not found ---> GPIO line <<int>> (line-C-input) hogged as input
   sdhci_msm f98a4900.sdhci: deferred probe timeout, ignoring dependency
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
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
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: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric
ok OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail
ok OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name
-> ### dt-test ### end of unittest - 256 passed, 1 failed

Source Location

The unit tests are located in the Linux kernel source tree

  • drivers/of/unittest.c
  • drivers/of/unittest-data/
Retrieved from "https://elinux.org/index.php?title=Device_Tree_unittest&oldid=543891"