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of: unittest: taint the kernel when of unittest runs

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Make OF unittest trigger the new TAINT_TEST taint when OF unittest runs.
Due to OF unittest not being intended to run on production systems, and
potentially causing problems (or security issues like leaking kernel
addresses), the kernel's state should not be considered safe for
production use after OF unittest runs.

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Link: https://lore.kernel.org/r/20220823200152.3465751-1-frowand.list@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Frank Rowand 2022-08-23 15:01:52 -05:00 committed by Rob Herring
parent f1bd8b2e89
commit 59f9072f6e
1 changed files with 3 additions and 0 deletions
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drivers/of/unittest.c
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@ -3467,6 +3467,9 @@ static int __init of_unittest(void)
pr_info("start of unittest - you will see error messages\n");
/* Taint the kernel so we know we've run tests. */
add_taint(TAINT_TEST, LOCKDEP_STILL_OK);
/* adding data for unittest */
if (IS_ENABLED(CONFIG_UML))