linux-kernel - [PATCH net-next v3 10/11] selftests/vsock: add vsock

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Message-Id: <20251106-vsock-selftests-fixes-and-improvements-v3-10-519372e8a07b@meta.com>
Date: Thu, 06 Nov 2025 16:49:54 -0800
From: Bobby Eshleman <bobbyeshleman@...il.com>
To: Stefano Garzarella <sgarzare@...hat.com>, Shuah Khan <shuah@...nel.org>
Cc: virtualization@...ts.linux.dev, netdev@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Bobby Eshleman <bobbyeshleman@...a.com>
Subject: [PATCH net-next v3 10/11] selftests/vsock: add vsock_loopback
 module loading

From: Bobby Eshleman <bobbyeshleman@...a.com>

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.

Reviewed-by: Stefano Garzarella <sgarzare@...hat.com>
Signed-off-by: Bobby Eshleman <bobbyeshleman@...a.com>
---
 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 a5c33b475a39..cde048bd7fe6 100755
--- a/tools/testing/selftests/vsock/vmtest.sh
+++ b/tools/testing/selftests/vsock/vmtest.sh
@@ -463,6 +463,8 @@ 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