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Should it be static? Message-ID: <202610021733.EeeBI3cf-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://github.com/kkdwivedi/linux fermata head: babde5051be3840becf5a78de91a0b68a99f0e49 commit: 280ac9dc2846a4a9c68adefea007239b3642d07f [47/49] bpf: Add bpf_psi_total() to read a cgroup's stall time config: um-randconfig-r2307-20261001 (https://download.01.org/0day-ci/archive/20261002/202610021733.EeeBI3cf-lkp@intel.com/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/20261002/202610021733.EeeBI3cf-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/202610021733.EeeBI3cf-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/topology.c:118:56: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:118:56: sparse: expected struct sched_domain *sd kernel/sched/topology.c:118:56: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:137:60: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:137:60: sparse: expected struct sched_domain *sd kernel/sched/topology.c:137:60: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:160:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:160:20: sparse: expected struct sched_domain *sd kernel/sched/topology.c:160:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:470:19: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct perf_domain *pd @@ got struct perf_domain [noderef] __rcu *pd @@ kernel/sched/topology.c:470:19: sparse: expected struct perf_domain *pd kernel/sched/topology.c:470:19: sparse: got struct perf_domain [noderef] __rcu *pd kernel/sched/topology.c:654:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:654:49: sparse: expected struct sched_domain *parent kernel/sched/topology.c:654:49: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:753:50: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:753:50: sparse: expected struct sched_domain *parent kernel/sched/topology.c:753:50: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:775:55: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain [noderef] __rcu *[noderef] __rcu child @@ got struct sched_domain *[assigned] tmp @@ kernel/sched/topology.c:775:55: sparse: expected struct sched_domain [noderef] __rcu *[noderef] __rcu child kernel/sched/topology.c:775:55: sparse: got struct sched_domain *[assigned] tmp kernel/sched/topology.c:788:29: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:788:29: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/topology.c:788:29: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:793:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:793:20: sparse: expected struct sched_domain *sd kernel/sched/topology.c:793:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:826:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *sd @@ kernel/sched/topology.c:826:13: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/topology.c:826:13: sparse: got struct sched_domain [noderef] __rcu *sd kernel/sched/topology.c:1069:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *sdp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:1069:38: sparse: expected struct sched_domain *sdp kernel/sched/topology.c:1069:38: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:1076:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sdp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:1076:21: sparse: expected struct sched_domain *sdp kernel/sched/topology.c:1076:21: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:1223:70: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1223:70: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1223:70: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1252:59: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1252:59: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1252:59: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1298:57: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1298:57: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1298:57: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1300:25: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sibling @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1300:25: sparse: expected struct sched_domain *sibling kernel/sched/topology.c:1300:25: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1308:55: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1308:55: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1308:55: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1310:25: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sibling @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1310:25: sparse: expected struct sched_domain *sibling kernel/sched/topology.c:1310:25: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1380:62: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1380:62: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1380:62: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1484:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *child @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1484:40: sparse: expected struct sched_domain *child kernel/sched/topology.c:1484:40: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1620:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:1620:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:1620:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:1877:52: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:1877:52: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:1877:52: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:1987:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain [noderef] __rcu *child @@ got struct sched_domain *child @@ kernel/sched/topology.c:1987:43: sparse: expected struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1987:43: sparse: got struct sched_domain *child kernel/sched/topology.c:2791:31: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain [noderef] __rcu *parent @@ got struct sched_domain *sd @@ kernel/sched/topology.c:2791:31: sparse: expected struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:2791:31: sparse: got struct sched_domain *sd kernel/sched/topology.c:2919:16: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *[noderef] __rcu parent @@ kernel/sched/topology.c:2919:16: sparse: expected struct sched_domain *parent kernel/sched/topology.c:2919:16: sparse: got struct sched_domain [noderef] __rcu *[noderef] __rcu parent kernel/sched/topology.c:2921:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:2921:24: sparse: expected struct sched_domain *parent kernel/sched/topology.c:2921:24: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:2926:16: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:2926:16: sparse: expected struct sched_domain *parent kernel/sched/topology.c:2926:16: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:2931:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:2931:24: sparse: expected struct sched_domain *parent kernel/sched/topology.c:2931:24: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:3008:25: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd_asym @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:3008:25: sparse: expected struct sched_domain *[assigned] sd_asym kernel/sched/topology.c:3008:25: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:3143:57: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:3143:57: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:3143:57: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:3165:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:3165:28: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:3165:28: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:3191:57: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:3191:57: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:3191:57: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:3444:44: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:3444:44: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:3444:44: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/build_utility.c: note: in included file: >> kernel/sched/psi.c:1743:17: sparse: sparse: symbol 'bpf_psi_total' was not declared. Should it be static? kernel/sched/build_utility.c: note: in included file: kernel/sched/autogroup.c:10:28: sparse: sparse: symbol 'sysctl_sched_autogroup_enabled' was not declared. Should it be static? kernel/sched/build_utility.c: note: in included file: kernel/sched/sched.h:2489:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2489:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2489:25: sparse: struct task_struct * vim +/bpf_psi_total +1743 kernel/sched/psi.c 1729 1730 /** 1731 * bpf_psi_total - Read a cgroup's cumulative pressure stall time 1732 * @cgrp: the cgroup; the root cgroup reads the system-wide group 1733 * @state: the state to read, for example PSI_MEM_SOME or PSI_MEM_FULL 1734 * 1735 * Collects the per-CPU stall times first, so the result is as fresh as a 1736 * read of the cgroup's pressure files, whose total= field it matches. The 1737 * periodic aggregator alone updates the group total only every two seconds, 1738 * which is too coarse for a control loop that ticks faster than that. 1739 * 1740 * Return: the stall time in nanoseconds, or U64_MAX if PSI is disabled, the 1741 * cgroup has no PSI group, or @state is not a per-group state. 1742 */ > 1743 __bpf_kfunc u64 bpf_psi_total(struct cgroup *cgrp, enum psi_states state) 1744 { 1745 struct psi_group *group; 1746 u64 total; 1747 1748 if (static_branch_likely(&psi_disabled)) 1749 return U64_MAX; 1750 if ((unsigned int)state >= PSI_NONIDLE) 1751 return U64_MAX; 1752 1753 group = cgroup_psi(cgrp); 1754 if (!group) 1755 return U64_MAX; 1756 1757 mutex_lock(&group->avgs_lock); 1758 collect_percpu_times(group, PSI_AVGS, NULL); 1759 total = group->total[PSI_AVGS][state]; 1760 mutex_unlock(&group->avgs_lock); 1761 1762 return total; 1763 } 1764 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki