error: unable to open output file 'kselftest/net/bpf/nat6to4.o': 'No such file or directory'

[kernel test robot]

Hi Lina,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0fac198def2b41138850867b6aa92044c76ff802
commit: edae34a3ed9293b5077dddf9e51a3d86c95dc76a selftests net: add UDP GRO fraglist + bpf self-tests
date:   3 months ago
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce:
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=edae34a3ed9293b5077dddf9e51a3d86c95dc76a
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout edae34a3ed9293b5077dddf9e51a3d86c95dc76a
        make O=/tmp/kselftest headers
        make O=/tmp/kselftest -C tools/testing/selftests

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> error: unable to open output file 'kselftest/net/bpf/nat6to4.o': 'No such file or directory'
   1 error generated.

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