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-rw-r--r--drivers/of/Kconfig14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 80b5fd44ab1c..644386833a7b 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -23,7 +23,19 @@ config OF_UNITTEST
that are executed once at boot time, and the results dumped to the
console.
- If unsure, say N here, but this option is safe to enable.
+ This option should only be enabled for a development kernel. The tests
+ will taint the kernel with TAINT_TEST. The tests will cause ERROR and
+ WARNING messages to print on the console. The tests will cause stack
+ traces to print on the console. It is possible that the tests will
+ leave the devicetree in a corrupted state.
+
+ The unittest output will be verbose. Copy the output to a file
+ via capturing the console output or via the dmesg command. Process
+ this file with scripts/dtc/of_unittest_expect to reduce the
+ verbosity, test whether expected output is present, and to
+ summarize the results.
+
+ If unsure, say N here. This option is not safe to enable.
config OF_ALL_DTBS
bool "Build all Device Tree Blobs"