[PATCH] selftests: bpf: test_kmod.sh: check the module path before insmod

[Naresh Kamboju]

test_kmod.sh reported false failure when module not present.
Check test_bpf.ko is present in the path before loading it.

Stop using "insmod $SRC_TREE/lib/test_bpf.ko" instead use
"modprobe test_bpf"

Signed-off-by: Naresh Kamboju <naresh.kamb...@linaro.org>
---
 tools/testing/selftests/bpf/test_kmod.sh | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_kmod.sh 
b/tools/testing/selftests/bpf/test_kmod.sh
index ed4774d..54177b1 100755
--- a/tools/testing/selftests/bpf/test_kmod.sh
+++ b/tools/testing/selftests/bpf/test_kmod.sh
@@ -1,8 +1,6 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 
-SRC_TREE=../../../../
-
 test_run()
 {
        sysctl -w net.core.bpf_jit_enable=$1 2>&1 > /dev/null
@@ -10,8 +8,13 @@ test_run()
 
        echo "[ JIT enabled:$1 hardened:$2 ]"
        dmesg -C
-       insmod $SRC_TREE/lib/test_bpf.ko 2> /dev/null
-       if [ $? -ne 0 ]; then
+       # Use modprobe dry run to check for missing test_bpf module
+       if ! /sbin/modprobe -q -n test_bpf; then
+               echo "test_bpf: [SKIP]"
+       elif /sbin/modprobe -q test_bpf; then
+               echo "test_bpf: ok"
+       else
+               echo "test_bpf: [FAIL]"
                rc=1
        fi
        rmmod  test_bpf 2> /dev/null
-- 
2.7.4