From: Howard Chu <howardchu95@gmail.com>
Date: Wed, 28 May 2025 19:11:43 +0000 (-0700)
Subject: perf test trace: Use shell's -f flag to check if vmlinux exists
X-Git-Tag: io_uring-6.17-20250815~64^2~166
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=6612d4d4910d45b15dee4a989b1aa2ddce8cc617;p=linux-block.git

perf test trace: Use shell's -f flag to check if vmlinux exists

To match the style of the existing codebase, no functional changes
were applied.

Signed-off-by: Howard Chu <howardchu95@gmail.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250528191148.89118-2-howardchu95@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---

diff --git a/tools/perf/tests/shell/trace_btf_enum.sh b/tools/perf/tests/shell/trace_btf_enum.sh
index f0b49f7fb57d..b3775209a0b1 100755
--- a/tools/perf/tests/shell/trace_btf_enum.sh
+++ b/tools/perf/tests/shell/trace_btf_enum.sh
@@ -17,7 +17,7 @@ skip_if_no_perf_trace || exit 2
 
 check_vmlinux() {
   echo "Checking if vmlinux exists"
-  if ! ls /sys/kernel/btf/vmlinux 1>/dev/null 2>&1
+  if [ ! -f /sys/kernel/btf/vmlinux ]
   then
     echo "trace+enum test [Skipped missing vmlinux BTF support]"
     err=2