Re: [PATCH bpf-next 1/2] bpf: add new map ops ->map_pressure

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Hi Anton,

Sorry for the late reply.

On Thu, Jun 01, 2023 at 07:50:00AM +0000, Anton Protopopov wrote:
> On Thu, Jun 01, 2023 at 08:44:24AM +0800, kernel test robot wrote:
> > Hi Anton,
> > 
> > kernel test robot noticed the following build errors:
> > 
> > [...]
> > 
> > If you fix the issue, kindly add following tag where applicable
> > | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/202306010837.mGhA199K-lkp@xxxxxxxxx/
> 
> How does this apply to patches? If I send a v2, should I include these tags
> there?

If a v2 is sent, these tags should not be included.

> If this patch gets rejected, is there need to do anything to close the
> robot's ticket?

No need to close this ticket.

Thanks for raising above concerns. We have updated the wording in our
reports as below to avoid misinterpretation:

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: ...
| Closes: ...

--
Best Regards,
Yujie

> > All errors (new ones prefixed by >>):
> > 
> >    kernel/bpf/hashtab.c: In function 'htab_map_pressure':
> > >> kernel/bpf/hashtab.c:189:24: error: implicit declaration of function '__percpu_counter_sum'; did you mean 'percpu_counter_sum'? [-Werror=implicit-function-declaration]
> >      189 |                 return __percpu_counter_sum(&htab->pcount);
> >          |                        ^~~~~~~~~~~~~~~~~~~~
> >          |                        percpu_counter_sum
> >    cc1: some warnings being treated as errors
> > 
> > 
> > vim +189 kernel/bpf/hashtab.c
> > 
> >    183	
> >    184	static u32 htab_map_pressure(const struct bpf_map *map)
> >    185	{
> >    186		struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
> >    187	
> >    188		if (htab->use_percpu_counter)
> >  > 189			return __percpu_counter_sum(&htab->pcount);
> >    190		return atomic_read(&htab->count);
> >    191	}
> >    192	
> 
> (This bug happens for !SMP case.)
> 
> > -- 
> > 0-DAY CI Kernel Test Service
> > https://github.com/intel/lkp-tests/wiki
> 




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