[PATCH 2/2] ftrace/selftests: Change non-unique test symbol to init_once

[Alexander Gordeev <agordeev@linux.ibm.com>]

The name_show symbol is not the best choise, because it often
appears only three times on s390 in kallsyms, with two of them
having module annotations [mdev] and [i2c_core].

Switch to init_once which has many more duplicate instances
all in vmlinux, making it a more reliable non-unique symbol
for testing kprobe registration failure.

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
---
 .../selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc
index 07b1177c1634..03eb9e70b438 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc
@@ -3,7 +3,7 @@
 # description: Test failure of registering kprobe on non unique symbol
 # requires: kprobe_events
 
-SYMBOL='name_show'
+SYMBOL='init_once'
 
 # We skip this test on kernel where SYMBOL is unique or does not exist.
 if [ "$(grep -c -E "[[:alnum:]]+ t ${SYMBOL}$" /proc/kallsyms)" -le '1' ]; then
-- 
2.53.0