[F/F-OEM-5.6][SRU][PATCH 0/1] Mark kprobe_args_user.tc in kselftest/ftrace as unsupported

[Po-Hsu Lin]

[Impact]
This kprobe_args_user.tc test will be marked as "unresolved" and once
causing failures in ftrace of our ubuntu_kernel_selftests (lp:1869227)

Our workaround is to blacklist this test in autotest-client-tests [1]

Note that with b730d668138cb3 ("ftrace/selftest: make unresolved cases
cause failure if --fail-unresolved set") available, an unresolved case
will not be treated as a failure unless we requested so.

[1] https://kernel.ubuntu.com/git/ubuntu/autotest-client-tests.git/commit/ubuntu_kernel_selftests/ubuntu_kernel_selftests.py?id=a381d47a9004388730e825cd20566ef102a29399

[Fix]
* 1e11b7dbef17bb selftests/ftrace: Return unsupported for the
unconfigured features

With this patch it will be marked as unsupported, easier to understand
than unresolved.

This patch can be found in Groovy and newer releases, and this test
does not exist in Bionic and older releases. It's rather trivial to
fix this in F-OEM-5.6 as we don't run s390x / PowerPC with it.

[Test]
Tested on s390x / PowerPC, this will be marked as unsupported:
$ sudo ./ftracetest test.d/kprobe/kprobe_args_user.tc
=== Ftrace unit tests ===
[1] Kprobe event user-memory access	[UNSUPPORTED]

# of passed:  0
# of failed:  0
# of unresolved:  0
# of untested:  0
# of unsupported:  1
# of xfailed:  0
# of undefined(test bug):  0
$ echo $?
0

[Where problems could occur]
Changes limited to testing tool, should not impact real kernel
functionality. With this patch and local workaround in
autotest-client-tests removed we might see this failing for
s390x / PowerPC in the future.

Masami Hiramatsu (1):
  selftests/ftrace: Return unsupported for the unconfigured features

 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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2.7.4