scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/tools/verification/rvgen/dot2c b/tools/verification/rvgen/dot2c
new file mode 100644
index 000000000..1012becc7
--- /dev/null
+++ b/tools/verification/rvgen/dot2c
@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright (C) 2019-2022 Red Hat, Inc. Daniel Bristot de Oliveira <bristot@kernel.org>
+#
+# dot2c: parse an automata in dot file digraph format into a C
+#
+# This program was written in the development of this paper:
+#  de Oliveira, D. B. and Cucinotta, T. and de Oliveira, R. S.
+#  "Efficient Formal Verification for the Linux Kernel." International
+#  Conference on Software Engineering and Formal Methods. Springer, Cham, 2019.
+#
+# For further information, see:
+#   Documentation/trace/rv/deterministic_automata.rst
+
+if __name__ == '__main__':
+    from rvgen import dot2c
+    import argparse
+
+    parser = argparse.ArgumentParser(description='dot2c: converts a .dot file into a C structure')
+    parser.add_argument('dot_file',  help='The dot file to be converted')
+
+    args = parser.parse_args()
+    d = dot2c.Dot2c(args.dot_file)
+    d.print_model_classic()