Hi Joe,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bpf-next/master]
[cannot apply to bpf/master net/master net-next/master linus/master ipvs/master v5.6-rc7 next-20200327]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Joe-Stringer/Add-bpf_sk_assign-eBPF-helper/20200329-025903
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: arm-spear3xx_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=9.3.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   arm-linux-gnueabi-ld: net/core/sock.o: in function `sock_pfree':
   sock.c:(.text+0x8bc): undefined reference to `sock_gen_put'
>> arm-linux-gnueabi-ld: sock.c:(.text+0x8d0): undefined reference to `sock_gen_put'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org