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75860b5201
Some distros ship with older vm_sockets.h that doesn't have VMADDR_CID_LOCAL
which causes selftests build to fail:
/tmp/work/bpf/bpf/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c:261:18: error: ‘VMADDR_CID_LOCAL’ undeclared (first use in this function); did you mean ‘VMADDR_CID_HOST’?
261 | addr->svm_cid = VMADDR_CID_LOCAL;
| ^~~~~~~~~~~~~~~~
| VMADDR_CID_HOST
Workaround this issue by defining it on demand.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>