Enable CIFS debugging routines

configname: CONFIG_CIFS_DEBUG

Linux Kernel Configuration
└─>File systems
└─>Network File Systems
└─>Enable CIFS debugging routines
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Enabling this option adds helpful debugging messages to
the cifs code which increases the size of the cifs module.
If unsure, say Y.