CONFIG_SUNRPC_GSS (not configurable)

modulename: auth_rpcgss.ko

configname: CONFIG_SUNRPC_GSS

Linux Kernel Configuration
└─>File systems
└─>Network File Systems
└─>SUNRPC_GSS
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
source code:
net/sunrpc/auth_gss/

is depended by
CONFIG_NFSD_V4