Running shellcheck on record_sideband.sh throws below warning: In tests/shell/record_sideband.sh line 25: if ! perf record -o ${perfdata} -BN --no-bpf-event -C $1 true 2>&1 >/dev/null ^--^ SC2069: To redirect stdout+stderr, 2>&1 must be last (or use '{ cmd > file; } 2>&1' to clarify).
This shows shellcheck warning SC2069 where the redirection order needs to be fixed. Use { cmd > file; } 2>&1 to fix the redirection of perf record output Fixes: 23b97c7ee963 ("perf test: Add test case for record sideband events") Signed-off-by: Athira Rajeev <atraj...@linux.vnet.ibm.com> --- tools/perf/tests/shell/record_sideband.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/tests/shell/record_sideband.sh b/tools/perf/tests/shell/record_sideband.sh index 5024a7ce0c51..7e036763a43c 100755 --- a/tools/perf/tests/shell/record_sideband.sh +++ b/tools/perf/tests/shell/record_sideband.sh @@ -22,7 +22,7 @@ trap trap_cleanup EXIT TERM INT can_cpu_wide() { - if ! perf record -o ${perfdata} -BN --no-bpf-event -C $1 true 2>&1 >/dev/null + if ! { perf record -o ${perfdata} -BN --no-bpf-event -C $1 true > /dev/null; } 2>&1 then echo "record sideband test [Skipped cannot record cpu$1]" err=2 -- 2.31.1