Hi Alexei, I love your patch! Yet something to improve: [auto build test ERROR on bpf-next/master] url: https://github.com/0day-ci/linux/commits/Alexei-Starovoitov/bpf-Populate-bpffs-with-map-and-prog-iterators/20200703-040602 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: um-allmodconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce (this is a W=1 build): # save the attached .config to linux build tree make W=1 ARCH=um If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> make[4]: *** No rule to make target 'kernel/bpf/preload/../../tools/lib/bpf/bpf.c', needed by 'kernel/bpf/preload/../../tools/lib/bpf/bpf.o'. >> make[4]: *** No rule to make target 'kernel/bpf/preload/../../tools/lib/bpf/libbpf.c', needed by 'kernel/bpf/preload/../../tools/lib/bpf/libbpf.o'. >> make[4]: *** No rule to make target 'kernel/bpf/preload/../../tools/lib/bpf/btf.c', needed by 'kernel/bpf/preload/../../tools/lib/bpf/btf.o'. >> make[4]: *** No rule to make target 'kernel/bpf/preload/../../tools/lib/bpf/libbpf_errno.c', needed by 'kernel/bpf/preload/../../tools/lib/bpf/libbpf_errno.o'. >> make[4]: *** No rule to make target 'kernel/bpf/preload/../../tools/lib/bpf/str_error.c', needed by 'kernel/bpf/preload/../../tools/lib/bpf/str_error.o'. >> make[4]: *** No rule to make target 'kernel/bpf/preload/../../tools/lib/bpf/hashmap.c', needed by 'kernel/bpf/preload/../../tools/lib/bpf/hashmap.o'. >> make[4]: *** No rule to make target 'kernel/bpf/preload/../../tools/lib/bpf/libbpf_probes.c', needed by 'kernel/bpf/preload/../../tools/lib/bpf/libbpf_probes.o'. make[4]: *** [scripts/Makefile.build:281: kernel/bpf/preload/bpf_preload_kern.o] Error 1 make[4]: Target '__build' not remade because of errors. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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