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

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Message-Id: <1571259116-102015-2-git-send-email-longli@linuxonhyperv.com>
Date:   Wed, 16 Oct 2019 13:51:50 -0700
From:   longli@...uxonhyperv.com
To:     Steve French <sfrench@...ba.org>, linux-cifs@...r.kernel.org,
        samba-technical@...ts.samba.org, linux-kernel@...r.kernel.org
Cc:     Long Li <longli@...rosoft.com>, stable@...r.kernel.org
Subject: [PATCH 1/7] cifs: Don't display RDMA transport on reconnect

From: Long Li <longli@...rosoft.com>

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

Signed-off-by: Long Li <longli@...rosoft.com>
Cc: stable@...r.kernel.org
---
 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