On Tue, Mar 09, 2021 at 04:22:44PM +0800, kernel test robot wrote:
> Hi Hangbin,
> 
> Thank you for the patch! Yet something to improve:

Thanks, I forgot to modify it when rename the flag name.

Hangbin
> 
> [auto build test ERROR on bpf-next/master]
> 
> url:    
> https://github.com/0day-ci/linux/commits/Hangbin-Liu/xdp-extend-xdp_redirect_map-with-broadcast-support/20210309-153218
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git 
> master
> config: s390-randconfig-s031-20210309 (attached as .config)
> compiler: s390-linux-gcc (GCC) 9.3.0
> reproduce:
>         wget 
> https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
> ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # apt-get install sparse
>         # sparse version: v0.6.3-262-g5e674421-dirty
>         # 
> https://github.com/0day-ci/linux/commit/d0e1734db001fb56c1428e92145c7f3a001402f3
>         git remote add linux-review https://github.com/0day-ci/linux
>         git fetch --no-tags linux-review 
> Hangbin-Liu/xdp-extend-xdp_redirect_map-with-broadcast-support/20210309-153218
>         git checkout d0e1734db001fb56c1428e92145c7f3a001402f3
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 
> CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=s390 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <l...@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>    net/core/filter.c: In function '__bpf_tx_xdp_map':
> >> net/core/filter.c:3928:15: error: 'BPF_F_REDIR_BROADCAST' undeclared 
> >> (first use in this function); did you mean 'BPF_F_BROADCAST'?
>     3928 |   if (flags & BPF_F_REDIR_BROADCAST)
>          |               ^~~~~~~~~~~~~~~~~~~~~
>          |               BPF_F_BROADCAST
>    net/core/filter.c:3928:15: note: each undeclared identifier is reported 
> only once for each function it appears in
> >> net/core/filter.c:3930:20: error: 'BPF_F_REDIR_EXCLUDE_INGRESS' undeclared 
> >> (first use in this function); did you mean 'BPF_F_EXCLUDE_INGRESS'?
>     3930 |            flags & BPF_F_REDIR_EXCLUDE_INGRESS);
>          |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>          |                    BPF_F_EXCLUDE_INGRESS
>    net/core/filter.c: In function 'xdp_do_generic_redirect_map':
>    net/core/filter.c:4090:19: error: 'BPF_F_REDIR_BROADCAST' undeclared 
> (first use in this function); did you mean 'BPF_F_BROADCAST'?
>     4090 |   if (ri->flags & BPF_F_REDIR_BROADCAST)
>          |                   ^~~~~~~~~~~~~~~~~~~~~
>          |                   BPF_F_BROADCAST
>    net/core/filter.c:4092:24: error: 'BPF_F_REDIR_EXCLUDE_INGRESS' undeclared 
> (first use in this function); did you mean 'BPF_F_EXCLUDE_INGRESS'?
>     4092 |            ri->flags & BPF_F_REDIR_EXCLUDE_INGRESS);
>          |                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>          |                        BPF_F_EXCLUDE_INGRESS
>    net/core/filter.c: In function '____bpf_xdp_redirect_map':
>    net/core/filter.c:4182:44: error: 'BPF_F_REDIR_BROADCAST' undeclared 
> (first use in this function); did you mean 'BPF_F_BROADCAST'?
>     4182 |  if (unlikely(!ri->tgt_value) && !(flags & BPF_F_REDIR_BROADCAST)) 
> {
>          |                                            ^~~~~~~~~~~~~~~~~~~~~
>          |                                            BPF_F_BROADCAST
> 
> 
> vim +3928 net/core/filter.c
> 
>   3920        
>   3921        static int __bpf_tx_xdp_map(struct net_device *dev_rx, void 
> *fwd,
>   3922                                    struct bpf_map *map, struct 
> xdp_buff *xdp,
>   3923                                    u32 flags)
>   3924        {
>   3925                switch (map->map_type) {
>   3926                case BPF_MAP_TYPE_DEVMAP:
>   3927                case BPF_MAP_TYPE_DEVMAP_HASH:
> > 3928                        if (flags & BPF_F_REDIR_BROADCAST)
>   3929                                return dev_map_enqueue_multi(xdp, 
> dev_rx, map,
> > 3930                                                             flags & 
> > BPF_F_REDIR_EXCLUDE_INGRESS);
>   3931                        else
>   3932                                return dev_map_enqueue(fwd, xdp, 
> dev_rx);
>   3933                case BPF_MAP_TYPE_CPUMAP:
>   3934                        return cpu_map_enqueue(fwd, xdp, dev_rx);
>   3935                case BPF_MAP_TYPE_XSKMAP:
>   3936                        return __xsk_map_redirect(fwd, xdp);
>   3937                default:
>   3938                        return -EBADRQC;
>   3939                }
>   3940                return 0;
>   3941        }
>   3942        
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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