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selftests/ftrace: Fix check of return value in fgraph-retval.tc test

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The addition of recording both the function name and return address to the
function graph tracer updated the selftest to check for "=-5" from "= -5".
But this causes the test to fail on certain configs, as "= -5" is still a
value that can be returned if function addresses are not enabled (older kernels).

Check for both "=-5" and " -5" as a success value.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Donglin Peng <pengdonglin@xiaomi.com>
Link: https://lore.kernel.org/20241011132042.435f43cc@gandalf.local.home
Fixes: 21e92806d3 ("function_graph: Support recording and printing the function return address")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt 2024-10-11 13:20:42 -04:00 committed by Steven Rostedt (Google)
parent 0b582611a8
commit 8684f2f37d
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/ftrace/test.d/ftrace/fgraph-retval.tc
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@ -29,7 +29,7 @@ set -e
: "Test printing the error code in signed decimal format"
echo 0 > options/funcgraph-retval-hex
count=`cat trace | grep 'proc_reg_write' | grep '=-5' | wc -l`
count=`cat trace | grep 'proc_reg_write' | grep -e '=-5 ' -e '= -5 ' | wc -l`
if [ $count -eq 0 ]; then
fail "Return value can not be printed in signed decimal format"
fi