New files:
drivers/net/dsa/yt921x.c
net/dsa/tag_yt921x.c
drivers/net/dsa/yt921x.h

Modified files:
net/dsa/Kconfig
net/dsa/Makefile
drivers/net/dsa/Makefile
include/uapi/linux/if_ether.h
drivers/net/dsa/Kconfig
MAINTAINERS
include/net/dsa.h

Checking coverage for a new file: drivers/net/dsa/yt921x.c
  Section MOTORCOMM YT921X ETHERNET SWITCH DRIVER covers ~4 files
PASS

Checking coverage for a new file: net/dsa/tag_yt921x.c
  Section MOTORCOMM YT921X ETHERNET SWITCH DRIVER covers ~4 files
PASS

Checking coverage for a new file: drivers/net/dsa/yt921x.h
  Section MOTORCOMM YT921X ETHERNET SWITCH DRIVER covers ~4 files
PASS