Commit bc5f1598 authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Shuah Khan
Browse files

selftests/ftrace: Return unsupported if it detects older kernel 



Return unsupported if the kernel is too old to support
instance independent ftrace filter for some testcases.

Signed-off-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: default avatarShuah Khan <shuahkh@osg.samsung.com>
parent 565d5576

tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc

+9 −0
Original line number Diff line number Diff line
@@ -72,6 +72,15 @@ run_enable_disable() { 
    test_event_enabled $check_disable



    echo "schedule:${enable}_event:$EVENT" > set_ftrace_filter

    if [ -d ../../instances ]; then # Check instances

	cur=`cat set_ftrace_filter`

	top=`cat ../../set_ftrace_filter`

	if [ "$cur" = "$top" ]; then

	    echo "This kernel is too old to support per instance filter"

	    reset_ftrace_filter

	    exit_unsupported

	fi

    fi



    echo " make sure it works 5 times"

tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc

+9 −0
Original line number Diff line number Diff line
@@ -75,6 +75,15 @@ fi 
echo '** SET TRACEOFF'



echo "$func:traceoff" > set_ftrace_filter

if [ -d ../../instances ]; then # Check instances

    cur=`cat set_ftrace_filter`

    top=`cat ../../set_ftrace_filter`

    if [ "$cur" = "$top" ]; then

	echo "This kernel is too old to support per instance filter"

	reset_ftrace_filter

	exit_unsupported

    fi

fi



cnt=`grep schedule set_ftrace_filter | wc -l`

if [ $cnt -ne 1 ]; then

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