如何把linux kernel里的SCTP_DEBUG选项打开

看到一篇文章讲打开SCTP_DEBUG
http://www.diybl.com/course/6_system...14/125443.html

最近把kernel里的SCTP_DEBUG打开重新编译， 然后写了一个client/server程序，把kernel SCTP的执行log打出来了。
里面有详细的函数流程
但不知道这个选项的设置在哪？
看了看Makefile和Kconfig文件，其中好像有相关的设置，但不知道怎么配置
********************************************************************Kconfig中部分
config SCTP_DBG_MSG
bool "SCTP: Debug messages"
depends on IP_SCTP
help
If you say Y, this will enable verbose debugging messages.

If unsure, say N. However, if you are running into problems, use
this option to gather detailed trace information

config SCTP_DBG_OBJCNT
bool "SCTP: Debug object counts"
depends on IP_SCTP
help
If you say Y, this will enable debugging support for counting the
type of objects that are currently allocated. This is useful for
identifying memory leaks. If the /proc filesystem is enabled this
debug information can be viewed by
'cat /proc/net/sctp/sctp_dbg_objcnt'

If unsure, say N
********************************************************************
********************************************************************Makefile中部分
#
# Makefile for SCTP support code.
#

obj-$(CONFIG_IP_SCTP) += sctp.o

sctp-y := sm_statetable.o sm_statefuns.o sm_sideeffect.o \
protocol.o endpointola.o associola.o \
transport.o chunk.o sm_make_chunk.o ulpevent.o \
inqueue.o outqueue.o ulpqueue.o command.o \
tsnmap.o bind_addr.o socket.o primitive.o \
output.o input.o debug.o ssnmap.o proc.o crc32c.o

sctp-$(CONFIG_SCTP_DBG_OBJCNT) += objcnt.o
sctp-$(CONFIG_SYSCTL) += sysctl.o

sctp-$(subst m,y,$(CONFIG_IPV6)) += ipv6.o
********************************************************************