From: Steve French <stfrench@microsoft.com>
Date: Fri, 15 Jun 2018 02:59:31 +0000 (-0500)
Subject: smb3: do not display empty interface list
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=115d5d288dc3368e3d6e7eb9ee213b342f072c23;p=linux.git

smb3: do not display empty interface list

If server does not support listing interfaces then do not
display empty "Server interfaces" line to avoid confusing users.

Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Aurelien Aptel <aaptel@suse.com>
---

diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index e8db245194e77..bfe9995058152 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -333,7 +333,9 @@ skip_rdma:
 			spin_unlock(&GlobalMid_Lock);
 
 			spin_lock(&ses->iface_lock);
-			seq_printf(m, "\n\tServer interfaces: %zu\n", ses->iface_count);
+			if (ses->iface_count)
+				seq_printf(m, "\n\tServer interfaces: %zu\n",
+					   ses->iface_count);
 			for (j = 0; j < ses->iface_count; j++) {
 				seq_printf(m, "\t%d)\n", j);
 				cifs_dump_iface(m, &ses->iface_list[j]);