On Sun, 2024-08-18 at 04:09 +0800, kernel test robot wrote: > Hi Eduard, > > 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/Eduard-Zingerman/bpf-rename-nocsr-bpf_fastcall-in-verifier/20240817-095340 > base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master > patch link: https://lore.kernel.org/r/20240817015140.1039351-4-eddyz87%40gmail.com > patch subject: [PATCH bpf-next v2 3/5] bpf: support bpf_fastcall patterns for kfuncs > config: arc-randconfig-002-20240817 (https://download.01.org/0day-ci/archive/20240818/202408180356.YZnBVEv3-lkp@xxxxxxxxx/config) > compiler: arceb-elf-gcc (GCC) 13.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240818/202408180356.YZnBVEv3-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 > > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > Closes: https://lore.kernel.org/oe-kbuild-all/202408180356.YZnBVEv3-lkp@xxxxxxxxx/ > > All warnings (new ones prefixed by >>): > > kernel/bpf/verifier.c: In function 'kfunc_fastcall_clobber_mask': > > > kernel/bpf/verifier.c:16146:33: warning: variable 'params' set but not used [-Wunused-but-set-variable] > 16146 | const struct btf_param *params; > | ^~~~~~ > Missed this warning. The params variable is not needed indeed. Will wait for comments before resubmitting. [...]