[B][SRU][PATCH 1/1] ftrace/selftest: make unresolved cases cause failure if --fail-unresolved set

[Po-Hsu Lin]

From: Alan Maguire <alan.maguire at oracle.com>

BugLink: https://bugs.launchpad.net/bugs/1877958

Currently, ftracetest will return 1 (failure) if any unresolved cases
are encountered.  The unresolved status results from modules and
programs not being available, and as such does not indicate any
issues with ftrace itself.  As such, change the behaviour of
ftracetest in line with unsupported cases; if unsupported cases
happen, ftracetest still returns 0 unless --fail-unsupported.  Here
--fail-unresolved is added and the default is to return 0 if
unresolved results occur.

Signed-off-by: Alan Maguire <alan.maguire at oracle.com>
Acked-by: Masami Hiramatsu <mhiramat at kernel.org>
Acked-by: Steven Rostedt (VMware) <rostedt at goodmis.org>
Signed-off-by: Shuah Khan <skhan at linuxfoundation.org>
(backported from commit b730d668138cb3dd9ce78f8003986d1adae5523a)
[PHLin: context adjustment]
Signed-off-by: Po-Hsu Lin <po-hsu.lin at canonical.com>
---
 tools/testing/selftests/ftrace/ftracetest | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
index f9a9d42..0763ecb 100755
--- a/tools/testing/selftests/ftrace/ftracetest
+++ b/tools/testing/selftests/ftrace/ftracetest
@@ -17,6 +17,7 @@ echo "		-v|--verbose Increase verbosity of test messages"
 echo "		-vv        Alias of -v -v (Show all results in stdout)"
 echo "		-vvv       Alias of -v -v -v (Show all commands immediately)"
 echo "		--fail-unsupported Treat UNSUPPORTED as a failure"
+echo "		--fail-unresolved Treat UNRESOLVED as a failure"
 echo "		-d|--debug Debug mode (trace all shell commands)"
 echo "		-l|--logdir <dir> Save logs on the <dir>"
 echo "		            If <dir> is -, all logs output in console only"
@@ -73,6 +74,10 @@ parse_opts() { # opts
       UNSUPPORTED_RESULT=1
       shift 1
     ;;
+    --fail-unresolved)
+      UNRESOLVED_RESULT=1
+      shift 1
+    ;;
     --logdir|-l)
       LOG_DIR=$2
       shift 2
@@ -117,6 +122,7 @@ KEEP_LOG=0
 DEBUG=0
 VERBOSE=0
 UNSUPPORTED_RESULT=0
+UNRESOLVED_RESULT=0
 # Parse command-line options
 parse_opts $*
 
@@ -192,7 +198,7 @@ eval_result() { # sigval
     $UNRESOLVED)
       prlog "	[UNRESOLVED]"
       UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO"
-      return 1 # this is a kind of bug.. something happened.
+      return $UNRESOLVED_RESULT # depends on use case
     ;;
     $UNTESTED)
       prlog "	[UNTESTED]"
-- 
2.7.4