Hi Alexei, I love your patch! Yet something to improve: [auto build test ERROR on net-next/master] [also build test ERROR on v5.7-rc7 next-20200529] [cannot apply to bpf-next/master bpf/master net/master] [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/Alexei-Starovoitov/bpf-Introduce-minimal-support-for-sleepable-progs/20200531-055259 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git bc183dec08f9cb177cf5206a010b7a9e7b22e567 config: um-randconfig-r004-20200529 (attached as .config) compiler: gcc-6 (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 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: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>, old ones prefixed by <<): /usr/bin/ld: kernel/bpf/syscall.o: in function `__bpf_prog_put_noref': kernel/bpf/syscall.c:1729: undefined reference to `bpf_srcu' /usr/bin/ld: kernel/bpf/hashtab.o: in function `htab_map_free': kernel/bpf/hashtab.c:1305: undefined reference to `bpf_srcu' /usr/bin/ld: kernel/bpf/hashtab.o: in function `lock_is_held': include/linux/lockdep.h:406: undefined reference to `bpf_srcu' >> /usr/bin/ld: include/linux/lockdep.h:406: undefined reference to `bpf_srcu' >> /usr/bin/ld: include/linux/lockdep.h:406: undefined reference to `bpf_srcu' /usr/bin/ld: kernel/bpf/hashtab.o:include/linux/lockdep.h:406: more undefined references to `bpf_srcu' follow collect2: error: ld returned 1 exit status --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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