Re: [PATCH bpf-next v2 6/8] cgroup: bpf: enable bpf programs to integrate with rstat

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Hi Yosry,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bpf-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Yosry-Ahmed/bpf-rstat-cgroup-hierarchical-stats/20220611-034720
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: hexagon-randconfig-r012-20220611 (https://download.01.org/0day-ci/archive/20220611/202206111842.O3viR9gq-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project ff4abe755279a3a47cc416ef80dbc900d9a98a19)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/83f297e2b47dc41b511f071b9eadf38339387b41
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Yosry-Ahmed/bpf-rstat-cgroup-hierarchical-stats/20220611-034720
        git checkout 83f297e2b47dc41b511f071b9eadf38339387b41
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash kernel/cgroup/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All error/warnings (new ones prefixed by >>):

>> kernel/cgroup/rstat.c:161:22: warning: no previous prototype for function 'bpf_rstat_flush' [-Wmissing-prototypes]
   __weak noinline void bpf_rstat_flush(struct cgroup *cgrp,
                        ^
   kernel/cgroup/rstat.c:161:17: note: declare 'static' if the function is not intended to be used outside of this translation unit
   __weak noinline void bpf_rstat_flush(struct cgroup *cgrp,
                   ^
                   static 
>> kernel/cgroup/rstat.c:509:3: error: field designator 'sleepable_set' does not refer to any field in type 'const struct btf_kfunc_id_set'
           .sleepable_set  = &bpf_rstat_sleepable_kfunc_ids,
            ^
   1 warning and 1 error generated.


vim +509 kernel/cgroup/rstat.c

   505	
   506	static const struct btf_kfunc_id_set bpf_rstat_kfunc_set = {
   507		.owner		= THIS_MODULE,
   508		.check_set	= &bpf_rstat_check_kfunc_ids,
 > 509		.sleepable_set	= &bpf_rstat_sleepable_kfunc_ids,
   510	};
   511	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



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