selftests/ftrace: Convert required interface checks into requires list

Convert the required tracefs interface checking code with
requires: list.

Fixed merge conflicts in trigger-hist.tc and trigger

selftests/ftrace: Convert required interface checks into requires list

Convert the required tracefs interface checking code with
requires: list.

Fixed merge conflicts in trigger-hist.tc and trigger-trace-marker-hist.tc
Shuah Khan <[email protected]>

Signed-off-by: Masami Hiramatsu <[email protected]>
Reviewed-by: Tom Zanussi <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>

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selftests/ftrace: Return unsupported for the unconfigured features

As same as other test cases, return unsupported if kprobe_events
or argument access feature are not found.

There can be a new arch

selftests/ftrace: Return unsupported for the unconfigured features

As same as other test cases, return unsupported if kprobe_events
or argument access feature are not found.

There can be a new arch which does not port those features yet,
and an older kernel which doesn't support it.
Those can not enable the features.

Signed-off-by: Masami Hiramatsu <[email protected]>
Reviewed-by: Tom Zanussi <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>

show more ...