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fmviesa001.fm.intel.com with ESMTP; 27 Sep 2024 07:24:25 -0700 Received: from kbuild by 53e96f405c61 with local (Exim 4.96) (envelope-from ) id 1suBtP-000MDz-0X; Fri, 27 Sep 2024 14:24:23 +0000 Date: Fri, 27 Sep 2024 22:23:29 +0800 From: kernel test robot To: Ingo Molnar Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org Subject: kernel/sched/syscalls.c:1196:1: sparse: sparse: Using plain integer as NULL pointer Message-ID: <202409272225.szemlZKv-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 commit: 04746ed80bcf3130951ed4d5c1bc5b0bcabdde22 sched/syscalls: Split out kernel/sched/syscalls.c from kernel/sched/core.c date: 4 months ago config: s390-randconfig-r132-20240927 (https://download.01.org/0day-ci/archive/20240927/202409272225.szemlZKv-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240927/202409272225.szemlZKv-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202409272225.szemlZKv-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/rt.c:2044:40: sparse: expected struct task_struct *task kernel/sched/rt.c:2044:40: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:2067:13: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/rt.c:2067:13: sparse: struct task_struct * kernel/sched/rt.c:2067:13: sparse: struct task_struct [noderef] __rcu * kernel/sched/rt.c:2417:54: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:2417:54: sparse: expected struct task_struct *tsk kernel/sched/rt.c:2417:54: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:2419:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:2419:40: sparse: expected struct task_struct *p kernel/sched/rt.c:2419:40: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:2419:61: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:2419:61: sparse: expected struct task_struct *p kernel/sched/rt.c:2419:61: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/build_policy.c: note: in included file: kernel/sched/deadline.c:2401:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2401:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:2401:23: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2411:13: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:2411:13: sparse: struct task_struct * kernel/sched/deadline.c:2411:13: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2519:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:2519:25: sparse: struct task_struct * kernel/sched/deadline.c:2519:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2026:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@ kernel/sched/deadline.c:2026:42: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:2026:42: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:2037:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2037:38: sparse: expected struct task_struct *tsk kernel/sched/deadline.c:2037:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1220:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1220:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:1220:23: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1444:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1444:38: sparse: expected struct task_struct *curr kernel/sched/deadline.c:1444:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2262:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/deadline.c:2262:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/deadline.c:2262:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/deadline.c:1911:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@ kernel/sched/deadline.c:1911:14: sparse: expected struct task_struct *curr kernel/sched/deadline.c:1911:14: sparse: got struct task_struct [noderef] __rcu * kernel/sched/deadline.c:1987:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1987:43: sparse: expected struct task_struct *p kernel/sched/deadline.c:1987:43: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2566:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2566:38: sparse: expected struct task_struct *tsk kernel/sched/deadline.c:2566:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2568:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2568:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:2568:23: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2570:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@ kernel/sched/deadline.c:2570:44: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:2570:44: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:2745:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:2745:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2745:22: sparse: struct task_struct * kernel/sched/deadline.c:2794:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/build_policy.c: note: in included file: kernel/sched/syscalls.c:206:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/syscalls.c:206:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/syscalls.c:206:22: sparse: struct task_struct * kernel/sched/build_policy.c: note: in included file (through include/linux/smp.h, include/linux/sched/clock.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 kernel/sched/build_policy.c: note: in included file: kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2328:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2328:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2328:9: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2328:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2328:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2328:9: sparse: struct task_struct * kernel/sched/build_policy.c: note: in included file: >> kernel/sched/syscalls.c:1196:1: sparse: sparse: Using plain integer as NULL pointer >> kernel/sched/syscalls.c:1196:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1386:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1386:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1402:6: sparse: sparse: context imbalance in 'sched_getaffinity' - different lock contexts for basic block kernel/sched/syscalls.c:1431:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1431:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1676:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1676:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/build_policy.c: note: in included file: kernel/sched/rt.c:1707:15: sparse: sparse: dereference of noderef expression vim +1196 kernel/sched/syscalls.c 1188 1189 /** 1190 * sys_sched_getattr - similar to sched_getparam, but with sched_attr 1191 * @pid: the pid in question. 1192 * @uattr: structure containing the extended parameters. 1193 * @usize: sizeof(attr) for fwd/bwd comp. 1194 * @flags: for future extension. 1195 */ > 1196 SYSCALL_DEFINE4(sched_getattr, pid_t, pid, struct sched_attr __user *, uattr, 1197 unsigned int, usize, unsigned int, flags) 1198 { 1199 struct sched_attr kattr = { }; 1200 struct task_struct *p; 1201 int retval; 1202 1203 if (!uattr || pid < 0 || usize > PAGE_SIZE || 1204 usize < SCHED_ATTR_SIZE_VER0 || flags) 1205 return -EINVAL; 1206 1207 scoped_guard (rcu) { 1208 p = find_process_by_pid(pid); 1209 if (!p) 1210 return -ESRCH; 1211 1212 retval = security_task_getscheduler(p); 1213 if (retval) 1214 return retval; 1215 1216 kattr.sched_policy = p->policy; 1217 if (p->sched_reset_on_fork) 1218 kattr.sched_flags |= SCHED_FLAG_RESET_ON_FORK; 1219 get_params(p, &kattr); 1220 kattr.sched_flags &= SCHED_FLAG_ALL; 1221 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki