Hi Chen, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.12 next-20241126] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Chen-Ridong/padata-add-pd-get-put-refcnt-helper/20241125-111043 base: linus/master patch link: https://lore.kernel.org/r/20241123080509.2573987-2-chenridong%40huaweicloud.com patch subject: [PATCH 1/2] padata: add pd get/put refcnt helper config: x86_64-randconfig-122-20241125 (https://download.01.org/0day-ci/archive/20241126/202411261818.iINyAe83-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241126/202411261818.iINyAe83-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/202411261818.iINyAe83-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> kernel/padata.c:1142:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct parallel_data *pd @@ got struct parallel_data [noderef] __rcu *pd @@ kernel/padata.c:1142:25: sparse: expected struct parallel_data *pd kernel/padata.c:1142:25: sparse: got struct parallel_data [noderef] __rcu *pd kernel/padata.c: note: in included file (through include/linux/swait.h, include/linux/completion.h): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true vim +1142 kernel/padata.c 1126 1127 /** 1128 * padata_free_shell - free a padata shell 1129 * 1130 * @ps: padata shell to free 1131 */ 1132 void padata_free_shell(struct padata_shell *ps) 1133 { 1134 struct parallel_data *pd; 1135 1136 if (!ps) 1137 return; 1138 1139 mutex_lock(&ps->pinst->lock); 1140 list_del(&ps->list); 1141 pd = rcu_dereference_protected(ps->pd, 1); > 1142 padata_put_pd(ps->pd); 1143 mutex_unlock(&ps->pinst->lock); 1144 1145 kfree(ps); 1146 } 1147 EXPORT_SYMBOL(padata_free_shell); 1148 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
