Running shellcheck on stat+shadow_stat.sh generates below warning: In tests/shell/stat+shadow_stat.sh line 48: while read cpu num evt hash ipc rest ^--^ SC2034 (warning): hash appears unused. Verify use (or export if used externally).
This variable is intentioanlly unused since it is needed to parse through the output. Use "_" as a prefix for this throw away variable. Signed-off-by: Athira Rajeev <atraj...@linux.vnet.ibm.com> --- tools/perf/tests/shell/stat+shadow_stat.sh | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/tests/shell/stat+shadow_stat.sh b/tools/perf/tests/shell/stat+shadow_stat.sh index 0e9cba84e757..a1918a15e36a 100755 --- a/tools/perf/tests/shell/stat+shadow_stat.sh +++ b/tools/perf/tests/shell/stat+shadow_stat.sh @@ -14,7 +14,7 @@ test_global_aggr() { perf stat -a --no-big-num -e cycles,instructions sleep 1 2>&1 | \ grep -e cycles -e instructions | \ - while read num evt hash ipc rest + while read num evt _hash ipc rest do # skip not counted events if [ "$num" = "<not" ]; then @@ -45,7 +45,7 @@ test_no_aggr() { perf stat -a -A --no-big-num -e cycles,instructions sleep 1 2>&1 | \ grep ^CPU | \ - while read cpu num evt hash ipc rest + while read cpu num evt _hash ipc rest do # skip not counted events if [ "$num" = "<not" ]; then -- 2.39.1