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Subject[PATCH 1/4] perf test: Fix non-bash issue with stat bpf counters
From
$(( .. )) is a bash feature but the test's interpreter is !/bin/sh,
switch the code to use expr.

Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/tests/shell/stat_bpf_counters.sh | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/shell/stat_bpf_counters.sh b/tools/perf/tests/shell/stat_bpf_counters.sh
index 22eb31e48ca7..2f9948b3d943 100755
--- a/tools/perf/tests/shell/stat_bpf_counters.sh
+++ b/tools/perf/tests/shell/stat_bpf_counters.sh
@@ -11,9 +11,9 @@ compare_number()
second_num=$2

# upper bound is first_num * 110%
- upper=$(( $first_num + $first_num / 10 ))
+ upper=$(expr $first_num + $first_num / 10 )
# lower bound is first_num * 90%
- lower=$(( $first_num - $first_num / 10 ))
+ lower=$(expr $first_num - $first_num / 10 )

if [ $second_num -gt $upper ] || [ $second_num -lt $lower ]; then
echo "The difference between $first_num and $second_num are greater than 10%."
--
2.32.0.288.g62a8d224e6-goog
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