Re: net/core/bpf_ksock.c:221:18: sparse: sparse: symbol 'bpf_ksock_release_dtor' was not declared. Should it be static?

From: Mahe Tardy

Date: Fri Sep 18 2026 - 05:52:41 EST


On Fri, Sep 18, 2026 at 01:34:41AM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 9b87fdc9af2fbfcdb5c24a64139685ef80f6573f
> commit: 7ae4eb14c5f9d9bf0e0feabeab206151b1280512 bpf: Add ksock kfuncs
> date: 5 weeks ago
> config: i386-randconfig-1302-20260917 (https://download.01.org/0day-ci/archive/20260918/202609180339.0L7nLqNo-lkp@xxxxxxxxx/config)
> compiler: gcc-12 (Debian 12.4.0-5) 12.4.0
> sparse: v0.6.5-rc1
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260918/202609180339.0L7nLqNo-lkp@xxxxxxxxx/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
> | Fixes: 7ae4eb14c5f9 ("bpf: Add ksock kfuncs")
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202609180339.0L7nLqNo-lkp@xxxxxxxxx/
>
> sparse warnings: (new ones prefixed by >>)
> >> net/core/bpf_ksock.c:221:18: sparse: sparse: symbol 'bpf_ksock_release_dtor' was not declared. Should it be static?

This looks like a duplicate notification of:
https://lore.kernel.org/oe-kbuild-all/202608171256.McaD8rfl-lkp@xxxxxxxxx/

And we concluded in the other thread that this should not be fixed and
is as intended.

>
> vim +/bpf_ksock_release_dtor +221 net/core/bpf_ksock.c
>
> 220
> > 221 __bpf_kfunc void bpf_ksock_release_dtor(void *ks)
> 222 {
> 223 bpf_ksock_release(ks);
> 224 }
> 225 CFI_NOSEAL(bpf_ksock_release_dtor);
> 226
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki