CONFIG_BCM_NET_PHYLIB (not configurable)

modulename: bcm-phy-lib.ko

configname: CONFIG_BCM_NET_PHYLIB

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>PHY Device support and infrastructure
└─>BCM_NET_PHYLIB
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/net/phy/bcm-phy-lib.c

is depended by
CONFIG_BCM_CYGNUS_PHY