[PATCH 1/7] cifs: Don't display RDMA transport on reconnect

From: longli
Date: Wed Oct 16 2019 - 16:52:19 EST


From: Long Li <longli@xxxxxxxxxxxxx>

On reconnect, the transport data structure is NULL and its information is not
available.

Signed-off-by: Long Li <longli@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
fs/cifs/cifs_debug.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 0b4eee3bed66..efb2928ff6c8 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -256,6 +256,11 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
if (!server->rdma)
goto skip_rdma;

+ if (!server->smbd_conn) {
+ seq_printf(m, "\nSMBDirect transport not available");
+ goto skip_rdma;
+ }
+
seq_printf(m, "\nSMBDirect (in hex) protocol version: %x "
"transport status: %x",
server->smbd_conn->protocol,
--
2.17.1