Re: [PATCH net-next 16/21] decnet: take dst->__refcnt when struct dn_route is created

Hi Wei,

[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Wei-Wang/remove-dst-garbage-collector-logic/20170617-181755
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
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=ia64 

All errors (new ones prefixed by >>):

   ERROR: "dst_dev_put" [net/ipv6/ipv6.ko] undefined!

quoted

ERROR: "dst_dev_put" [net/decnet/decnet.ko] undefined!

   ERROR: "ia64_delay_loop" [drivers/spi/spi-thunderx.ko] undefined!
   ERROR: "ia64_delay_loop" [drivers/net/phy/mdio-cavium.ko] undefined!

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