From c3ed44026cd07fda5976ecb79225759901a160b4 Mon Sep 17 00:00:00 2001
From: Steve French <stfrench@microsoft.com>
Date: Thu, 28 Jun 2018 22:53:39 -0500
Subject: [PATCH] smb3: remove noisy warning message on mount
Git-commit: c3ed44026cd07fda5976ecb79225759901a160b4
Patch-mainline: v4.19-rc1
References: bsc#1129664, bsc#1144333

Some servers, like Samba, don't support the fsctl for
query_network_interface_info so don't log a noisy warning
message on mount for this by default unless the error is more serious.
Lower the error to an FYI level so it does not get logged by
default.

Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Paulo Alcantara <palcantara@suse.de>
---
 fs/cifs/smb2ops.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 27b69977809d..4ce72055ca0a 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -444,7 +444,11 @@ SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon)
 			FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */,
 			NULL /* no data input */, 0 /* no data input */,
 			(char **)&out_buf, &ret_data_len);
-	if (rc != 0) {
+	if (rc == -EOPNOTSUPP) {
+		cifs_dbg(FYI,
+			 "server does not support query network interfaces\n");
+		goto out;
+	} else if (rc != 0) {
 		cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc);
 		goto out;
 	}
-- 
2.16.4