On 10/30/23 10:40 PM, Yafang Shao wrote: > On Mon, Oct 30, 2023 at 9:59 PM Jiri Olsa <olsajiri@xxxxxxxxx> wrote: >> >> On Mon, Oct 30, 2023 at 07:35:25PM +0800, Yafang Shao wrote: >>> On Mon, Oct 30, 2023 at 5:01 PM kernel test robot <lkp@xxxxxxxxx> wrote: >>>> >>>> Hi Yafang, >>>> >>>> kernel test robot noticed the following build warnings: >>>> >>>> [auto build test WARNING on bpf-next/master] >>>> >>>> url: https://github.com/intel-lab-lkp/linux/commits/Yafang-Shao/cgroup-Remove-unnecessary-list_empty/20231029-143457 >>>> base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master >>>> patch link: https://lore.kernel.org/r/20231029061438.4215-7-laoar.shao%40gmail.com >>>> patch subject: [PATCH v3 bpf-next 06/11] bpf: Add a new kfunc for cgroup1 hierarchy >>>> config: i386-randconfig-013-20231030 (https://urldefense.com/v3/__https://download.01.org/0day-ci/archive/20231030/202310301605.CGFI0aSW-lkp@xxxxxxxxx/config__;!!Bt8RZUm9aw!4feH_paRfc92c6DKnIgcbDciELDAOzSoIr66fN3591gkU9ddriq2cqyFm47OezGzvLvXd5Ep4R9ZYmtxrW9dqg$ ) >>>> compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 >>>> reproduce (this is a W=1 build): (https://urldefense.com/v3/__https://download.01.org/0day-ci/archive/20231030/202310301605.CGFI0aSW-lkp@xxxxxxxxx/reproduce__;!!Bt8RZUm9aw!4feH_paRfc92c6DKnIgcbDciELDAOzSoIr66fN3591gkU9ddriq2cqyFm47OezGzvLvXd5Ep4R9ZYmsRR5GsUA$ ) >>>> >>>> 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@xxxxxxxxx> >>>> | Closes: https://lore.kernel.org/oe-kbuild-all/202310301605.CGFI0aSW-lkp@xxxxxxxxx/ >>>> >>>> All warnings (new ones prefixed by >>): >>>> >>>> kernel/bpf/helpers.c:1893:19: warning: no previous declaration for 'bpf_obj_new_impl' [-Wmissing-declarations] >>> >>> -Wmissing-declarations is a known issue and somebody is working on it, right? >> >> there's this post [1] from Dave, but seems it never landed >> >> jirka >> >> [1] https://lore.kernel.org/bpf/20230816150634.1162838-1-void@xxxxxxxxxxxxx/ > > Thanks for your information. > > David, I'd appreciate it if you could share an update on its current status > Hi Yafang, I had a similar patch in a recent series that I was asked to split out and submit separately. Did so today after seeing this thread: https://lore.kernel.org/bpf/20231030210638.2415306-1-davemarchevsky@xxxxxx/ Sorry, should've CC'd you as well as Jiri on that patch.