selftests/livepatch: add test skip handling

Add a skip() message function that stops the test, logs an explanation,
and sets the "skip" return code (4).

Before loading a livepatch self-test kernel module, first verify that
we've built and installed it by running a 'modprobe --dry-run'.  This
should catch a few environment issues, including !CONFIG_LIVEPATCH and
!CONFIG_TEST_LIVEPATCH.  In these cases, exit gracefully with the new
skip() function.

Reported-by: Jiri Benc <[email protected]>
Suggested-by: Shuah Khan <[email protected]>
Reviewed-by: Petr Mladek <[email protected]>
Signed-off-by: Joe Lawrence <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>

0 files changed, 0 insertions, 0 deletions