Hi Subash,

[auto build test ERROR on v4.9-rc8]
[cannot apply to net-next/master net/master next-20170309]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Subash-Abhinov-Kasiviswanathan/net-Add-sysctl-to-toggle-early-demux-for-tcp-and-udp/20170310-184912
config: xtensa-common_defconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 4.9.0
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=xtensa 

All errors (new ones prefixed by >>):

   net/built-in.o: In function `genl_unregister_family':
>> (.text+0x3a17c): undefined reference to `tcp_v6_early_demux_configure'
   net/built-in.o: In function `proc_tcp_early_demux':
   sysctl_net_ipv4.c:(.text+0x7046e): undefined reference to `tcp_v6_early_demux_configure'

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation