[PATCH net-next 1/3] selftests: Disable stdin for remote commands over ssh

[Cosmin Ratiu <cratiu@nvidia.com>]

Local ssh clients executing remote commands get their stdin inherited
from the test process, but stdin isn't needed or useful, as remote
commands shouldn't read stdin in any case.

Explicitly disable stdin for remote ssh commands to avoid executing
remote commands which hang on stdin input.

Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
---
 tools/testing/selftests/drivers/net/lib/py/remote_ssh.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/drivers/net/lib/py/remote_ssh.py b/tools/testing/selftests/drivers/net/lib/py/remote_ssh.py
index 924addde19a3..b8c042689d20 100644
--- a/tools/testing/selftests/drivers/net/lib/py/remote_ssh.py
+++ b/tools/testing/selftests/drivers/net/lib/py/remote_ssh.py
@@ -21,6 +21,7 @@ class Remote:
 
     def cmd(self, comm):
         return subprocess.Popen(["ssh", "-q", self.name, comm],
+                                stdin=subprocess.DEVNULL,
                                 stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 
     def _mktmp(self):
-- 
2.53.0