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7ef26d62f3
rt_stall tests the ext DL server which was introduced in commit
cd959a3562 ("sched_ext: Add a DL server for sched_ext tasks").
On older kernels that lack this feature, the test calls ksft_exit_fail()
internally which terminates the entire runner process, preventing
subsequent tests from running.
Add a guard in setup() that checks for the ext_server field in struct rq
via __COMPAT_struct_has_field() and returns SCX_TEST_SKIP if not present.
Also print the names of skipped tests in the results summary, mirroring
the existing behavior for failed tests.
Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>