This series adds kselftest for histogram trigger expressions and is dependent on the series at [1] and can be applied on top of those after dropping the patch 7 in [1]. This version drops the changes to reset_trigger_file(). [1] https://lore.kernel.org/r/20211025200852.3002369-1-kaleshsingh@xxxxxxxxxx/ Kalesh Singh (2): tracing/histogram: Document hist trigger variables (v2) tracing/selftests: Add tests for hist trigger expression parsing (v6) kernel/trace/trace.c | 11 ++++ .../trigger/trigger-hist-expressions.tc | 65 +++++++++++++++++++ 2 files changed, 76 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc -- 2.33.0.1079.g6e70778dc9-goog