Re: bpf: Add gated tracepoints for skb life-cycle

Re: bpf: Add gated tracepoints for skb life-cycle

[kernel test robot]

Hi Jakub,

kernel test robot noticed the following build errors:



url:    https://github.com/intel-lab-lkp/linux/commits/Jakub-Sitnicki/bpf-Add-gated-tracepoints-for-skb-life-cycle/20260928-134018
base:   
patch link:    https://lore.kernel.org/r/202610021111.ChGDJ9fP-lkp%40intel.com
config: powerpc-randconfig-r2107-20261002 (https://download.01.org/0day-ci/archive/20261002/202610021111.ChGDJ9fP-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project d7e4505dd447d115d85fdea45cd71030ac1d86ee)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261002/202610021111.ChGDJ9fP-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610021111.ChGDJ9fP-lkp@intel.com/

All errors (new ones prefixed by >>):

>> net/core/skbuff.c:1610:2: error: call to undeclared function 'skb_maybe_trace_copy'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    1610 |         skb_maybe_trace_copy(new, old);
         |         ^
   net/core/skbuff.c:1610:2: note: did you mean 'skb_maybe_trace_free'?
   include/linux/skbuff.h:5186:20: note: 'skb_maybe_trace_free' declared here
    5186 | static inline void skb_maybe_trace_free(struct sk_buff *skb,
         |                    ^
   1 error generated.


vim +/skb_maybe_trace_copy +1610 net/core/skbuff.c

  1609	
> 1610		skb_maybe_trace_copy(new, old);
  1611	}
  1612	

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: bpf: Add gated tracepoints for skb life-cycle

[kernel test robot]

Hi Jakub,

kernel test robot noticed the following build errors:



url:    https://github.com/intel-lab-lkp/linux/commits/Jakub-Sitnicki/bpf-Add-gated-tracepoints-for-skb-life-cycle/20260928-134018
base:   
patch link:    https://lore.kernel.org/r/202610021152.f1jkk9kA-lkp%40intel.com
config: xtensa-randconfig-2000-20261002 (https://download.01.org/0day-ci/archive/20261002/202610021152.f1jkk9kA-lkp@intel.com/config)
compiler: xtensa-linux-gcc (GCC) 13.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261002/202610021152.f1jkk9kA-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610021152.f1jkk9kA-lkp@intel.com/

All errors (new ones prefixed by >>):

   net/core/skbuff.c: In function '__copy_skb_header':
>> net/core/skbuff.c:1610:9: error: implicit declaration of function 'skb_maybe_trace_copy'; did you mean 'skb_maybe_trace_free'? [-Werror=implicit-function-declaration]
    1610 |         skb_maybe_trace_copy(new, old);
         |         ^~~~~~~~~~~~~~~~~~~~
         |         skb_maybe_trace_free
   cc1: some warnings being treated as errors


vim +1610 net/core/skbuff.c

  1609	
> 1610		skb_maybe_trace_copy(new, old);
  1611	}
  1612	

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: bpf: Add gated tracepoints for skb life-cycle

[kernel test robot]

Hi Jakub,

kernel test robot noticed the following build warnings:



url:    https://github.com/intel-lab-lkp/linux/commits/Jakub-Sitnicki/bpf-Add-gated-tracepoints-for-skb-life-cycle/20260928-134018
base:   
patch link:    https://lore.kernel.org/r/202610021700.2tsioxwY-lkp%40intel.com
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20261002/202610021700.2tsioxwY-lkp@intel.com/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261002/202610021700.2tsioxwY-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610021700.2tsioxwY-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> Warning: net/core/filter.c:12450 function parameter 'skb' not described in 'bpf_trace_skb'
>> Warning: net/core/filter.c:12450 Excess function parameter 'skb_' description in 'bpf_trace_skb' (did you mean one of: 'skb')
>> Warning: net/core/filter.c:12467 function parameter 'skb' not described in 'bpf_skb_is_traced'
>> Warning: net/core/filter.c:12467 Excess function parameter 'skb_' description in 'bpf_skb_is_traced' (did you mean one of: 'skb')
>> Warning: net/core/filter.c:12450 function parameter 'skb' not described in 'bpf_trace_skb'
>> Warning: net/core/filter.c:12450 Excess function parameter 'skb_' description in 'bpf_trace_skb' (did you mean one of: 'skb')
>> Warning: net/core/filter.c:12467 function parameter 'skb' not described in 'bpf_skb_is_traced'
>> Warning: net/core/filter.c:12467 Excess function parameter 'skb_' description in 'bpf_skb_is_traced' (did you mean one of: 'skb')

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki