../../../scripts/Makefile.include:4: *** O=build_tools/ does not exist.  Stop.
Makefile:65: warning: overriding recipe for target 'emit_tests'
../lib.mk:130: warning: ignoring old recipe for target 'emit_tests'
Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h' differs from latest version at 'include/uapi/linux/if_xdp.h'