On Fri, Dec 15, 2023 at 04:53:19AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 5bd7ef53ffe5ca580e93e74eb8c81ed191ddc4bd > commit: fbd126f5a658b92c7f6af986a6d89cf5e5693268 gcov: annotate struct gcov_iterator with __counted_by > date: 8 weeks ago > config: i386-buildonly-randconfig-001-20231214 (https://download.01.org/0day-ci/archive/20231215/202312150432.oBngC94A-lkp@xxxxxxxxx/config) > compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231215/202312150432.oBngC94A-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/202312150432.oBngC94A-lkp@xxxxxxxxx/ > > All warnings (new ones prefixed by >>): > > >> kernel/gcov/fs.c:103: warning: Excess struct member 'buffer' description in 'gcov_iterator' > > > vim +103 kernel/gcov/fs.c > > 7a1d55b987dfcb Johannes Berg 2021-05-06 90 > 7a1d55b987dfcb Johannes Berg 2021-05-06 91 /** > 7a1d55b987dfcb Johannes Berg 2021-05-06 92 * struct gcov_iterator - specifies current file position in logical records > 7a1d55b987dfcb Johannes Berg 2021-05-06 93 * @info: associated profiling data > 7a1d55b987dfcb Johannes Berg 2021-05-06 94 * @buffer: buffer containing file data > 7a1d55b987dfcb Johannes Berg 2021-05-06 95 * @size: size of buffer > 7a1d55b987dfcb Johannes Berg 2021-05-06 96 * @pos: current position in file > 7a1d55b987dfcb Johannes Berg 2021-05-06 97 */ > 7a1d55b987dfcb Johannes Berg 2021-05-06 98 struct gcov_iterator { > 7a1d55b987dfcb Johannes Berg 2021-05-06 99 struct gcov_info *info; > 7a1d55b987dfcb Johannes Berg 2021-05-06 100 size_t size; > 7a1d55b987dfcb Johannes Berg 2021-05-06 101 loff_t pos; > fbd126f5a658b9 Kees Cook 2023-09-22 102 char buffer[] __counted_by(size); > 7a1d55b987dfcb Johannes Berg 2021-05-06 @103 }; > 7a1d55b987dfcb Johannes Berg 2021-05-06 104 It looks like whatever produces that error is not parsing attributes correctly. I suspect this is the "htmldocs" target and "__counted_by" is missing from Documentation/conf.py. I'll investigate... -- Kees Cook
