Hi Andrii, I love your patch! Perhaps something to improve: [auto build test WARNING on bpf-next/master] [cannot apply to bpf/master cgroup/for-next v5.6-rc7 next-20200325] [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/Andrii-Nakryiko/Add-support-for-cgroup-bpf_link/20200326-055942 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: i386-tinyconfig (attached as .config) compiler: gcc-7 (Debian 7.5.0-5) 7.5.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from include/linux/cgroup-defs.h:22:0, from include/linux/cgroup.h:28, from include/linux/memcontrol.h:13, from include/linux/swap.h:9, from include/linux/suspend.h:5, from arch/x86/kernel/asm-offsets.c:13: >> include/linux/bpf-cgroup.h:380:45: warning: 'struct bpf_link' declared inside parameter list will not be visible outside of this definition or declaration static inline int cgroup_bpf_replace(struct bpf_link *link, ^~~~~~~~ -- In file included from include/linux/cgroup-defs.h:22:0, from include/linux/cgroup.h:28, from include/linux/memcontrol.h:13, from include/linux/swap.h:9, from include/linux/suspend.h:5, from arch/x86/kernel/asm-offsets.c:13: >> include/linux/bpf-cgroup.h:380:45: warning: 'struct bpf_link' declared inside parameter list will not be visible outside of this definition or declaration static inline int cgroup_bpf_replace(struct bpf_link *link, ^~~~~~~~ 20 real 6 user 8 sys 71.33% cpu make prepare vim +380 include/linux/bpf-cgroup.h 379 > 380 static inline int cgroup_bpf_replace(struct bpf_link *link, 381 struct bpf_prog *old_prog, 382 struct bpf_prog *new_prog) 383 { 384 return -EINVAL; 385 } 386 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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