1. 内核的配置：

make ARCH=arm CROSS_COMPILE=arm-hisiv400-linux- menuconfig （配置）

b） General setup  ---> Kernel compression mode (LZMA)  --->LZMA

[*] Networking support  --->

Networking options  --->

<*> Packet socket

<*>   Packet: sockets monitoring interface

<*> Unix domain sockets

<*> Transformation user configuration interface

-*- Transformation migrate database

<*> PF_KEY sockets

[*]   PF_KEY MIGRATE

[*] TCP/IP networking