From: Bobby Eshleman <[email protected]>

Add vsock_loopback module loading to the loopback test so that vmtest.sh
can be used for kernels built with loopback as a module.

This is not technically a fix as kselftest expects loopback to be
built-in already (defined in selftests/vsock/config). This is useful
only for using vmtest.sh outside of kselftest.

Signed-off-by: Bobby Eshleman <[email protected]>
---
 tools/testing/selftests/vsock/vmtest.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/vsock/vmtest.sh 
b/tools/testing/selftests/vsock/vmtest.sh
index 0657973b5067..cfb6b589bcba 100755
--- a/tools/testing/selftests/vsock/vmtest.sh
+++ b/tools/testing/selftests/vsock/vmtest.sh
@@ -434,6 +434,8 @@ test_vm_client_host_server() {
 test_vm_loopback() {
        local port=60000 # non-forwarded local port
 
+       vm_ssh -- modprobe vsock_loopback &> /dev/null || :
+
        if ! vm_vsock_test "server" 1 "${port}"; then
                return "${KSFT_FAIL}"
        fi

-- 
2.47.3


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