New files:
net/ethtool/loopback.c
net/ethtool/cmis_loopback.c

Modified files:
drivers/net/netdevsim/ethtool.c
net/ethtool/netlink.c
include/linux/ethtool.h
drivers/net/netdevsim/netdevsim.h
net/ethtool/netlink.h
net/ethtool/Makefile
include/uapi/linux/ethtool_netlink_generated.h

Checking coverage for a new file: net/ethtool/loopback.c
  Section NETWORKING [ETHTOOL] covers ~50 files
  Section NETWORKING [GENERAL] covers ~3653 files
  Section THE REST covers ~953123 files
 MIN 50

Checking coverage for a new file: net/ethtool/cmis_loopback.c
  Section NETWORKING [ETHTOOL] covers ~50 files
  Section NETWORKING [GENERAL] covers ~3653 files
  Section THE REST covers ~953123 files
 MIN 50