Steve, list These three patches moves smb1 and all functions that depend on DES into smb1ops.c and will optionally compile smb1ops.c iff SMB1 support is enabled (CONFIG_CIFS_ALLOW_INSECURE_LEGACY) Additionally, make CONFIG_CIFS_ALLOW_INSECURE_LEGACY depend on CONFIG_LIB_DES so that if the kernel is built without DES support we automatically disable the smb1 protocol. This allows to build a cifs module on a kernel where DES has been disabled.
