[dborkman:pr/bpf-tc-misc8 2/4] net/core/filter.c:2493:43: error: 'skb' undeclared

[kernel test robot <lkp@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dborkman/bpf.git pr/bpf-tc-misc8
head:   9f6bfb1e3cd363d95d8a4c96ee962804152c3ad3
commit: 49800b34744f8b32eb67cfd7e269382f0a7dd16a [2/4] bpf: add redirect_peer helper
config: nds32-defconfig (attached as .config)
compiler: nds32le-linux-gcc (GCC) 9.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/dborkman/bpf.git/commit/?id=49800b34744f8b32eb67cfd7e269382f0a7dd16a
        git remote add dborkman https://git.kernel.org/pub/scm/linux/kernel/git/dborkman/bpf.git
        git fetch --no-tags dborkman pr/bpf-tc-misc8
        git checkout 49800b34744f8b32eb67cfd7e269382f0a7dd16a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nds32 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/kernel.h:11,
                    from include/linux/list.h:9,
                    from include/linux/module.h:12,
                    from net/core/filter.c:20:
   net/core/filter.c: In function '____bpf_redirect_peer':
>> net/core/filter.c:2493:43: error: 'skb' undeclared (first use in this function)
    2493 |  if (unlikely(flags || !skb_at_tc_ingress(skb)))
         |                                           ^~~
   include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
      78 | # define unlikely(x) __builtin_expect(!!(x), 0)
         |                                          ^
   net/core/filter.c:2493:43: note: each undeclared identifier is reported only once for each function it appears in
    2493 |  if (unlikely(flags || !skb_at_tc_ingress(skb)))
         |                                           ^~~
   include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
      78 | # define unlikely(x) __builtin_expect(!!(x), 0)
         |                                          ^

vim +/skb +2493 net/core/filter.c

  2488	
  2489	BPF_CALL_2(bpf_redirect_peer, u32, ifindex, u64, flags)
  2490	{
  2491		struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
  2492	
> 2493		if (unlikely(flags || !skb_at_tc_ingress(skb)))
  2494			return TC_ACT_SHOT;
  2495	
  2496		ri->flags = BPF_F_PEER;
  2497		ri->tgt_index = ifindex;
  2498	
  2499		return TC_ACT_REDIRECT;
  2500	}
  2501	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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