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Commit 75bf69c4 authored by Steve French's avatar Steve French Committed by Greg Kroah-Hartman
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SMB3: avoid confusing warning message on mount to Azure 



commit ebcd6de98754d9b6a5f89d7835864b1c365d432f upstream.

Mounts to Azure cause an unneeded warning message in dmesg
   "CIFS: VFS: parse_server_interfaces: incomplete interface info"

Azure rounds up the size (by 8 additional bytes, to a
16 byte boundary) of the structure returned on the query
of the server interfaces at mount time.  This is permissible
even though different than other servers so do not log a warning
if query network interfaces response is only rounded up by 8
bytes or fewer.

CC: Stable <stable@vger.kernel.org>
Reviewed-by: default avatarRonnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 53a27c6f

fs/cifs/smb2ops.c

+2 −1
Original line number Diff line number Diff line
@@ -366,7 +366,8 @@ parse_server_interfaces(struct network_interface_info_ioctl_rsp *buf, 
		goto out;

	}



	if (bytes_left || p->Next)

	/* Azure rounds the buffer size up 8, to a 16 byte boundary */

	if ((bytes_left > 8) || p->Next)

		cifs_dbg(VFS, "%s: incomplete interface info\n", __func__);