ktest: Use Kconfig dependencies to shorten time to make min_config

[platform/adaptation/renesas_rcar/renesas_kernel.git] / tools / testing / ktest / sample.conf

diff --git a/tools/testing/ktest/sample.conf b/tools/testing/ktest/sample.conf
index a83846d..d096a0c 100644 (file)
--- a/tools/testing/ktest/sample.conf
+++ b/tools/testing/ktest/sample.conf
@@ -837,6 +837,18 @@
 #  TODO: add a test version that makes the config do more than just
 #   boot, like having network access.
 #
+#  To save time, the test does not just grab any option and test
+#  it. The Kconfig files are examined to determine the dependencies
+#  of the configs. If a config is chosen that depends on another
+#  config, that config will be checked first. By checking the
+#  parents first, we can eliminate whole groups of configs that
+#  may have been enabled.
+#
+#  For example, if a USB device config is chosen and depends on CONFIG_USB,
+#  the CONFIG_USB will be tested before the device. If CONFIG_USB is
+#  found not to be needed, it, as well as all configs that depend on
+#  it, will be disabled and removed from the current min_config.
+#
 #  OUTPUT_MIN_CONFIG is the path and filename of the file that will
 #   be created from the MIN_CONFIG. If you interrupt the test, set
 #   this file as your new min config, and use it to continue the test.