tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2019.04.16a head: ca8714f549be5a186d086a223184095759eb7094 commit: 9a1a31194644dfc6b8f19755ea44ecf84f37cf40 [38/72] rcu: Enable elimination of Tree-RCU softirq processing reproduce: # apt-get install sparse git checkout 9a1a31194644dfc6b8f19755ea44ecf84f37cf40 make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag Reported-by: kbuild test robot <[email protected]> sparse warnings: (new ones prefixed by >>) >> kernel/rcu/tree.c:2408:36: sparse: sparse: incorrect type in initializer >> (different address spaces) @@ expected struct task_struct [noderef] >> <asn:3> **store @@ got struct task_struct [noderef] <asn:3> **store @@ >> kernel/rcu/tree.c:2408:36: sparse: expected struct task_struct [noderef] >> <asn:3> **store >> kernel/rcu/tree.c:2408:36: sparse: got struct task_struct *[noderef] >> <asn:3> * kernel/rcu/tree.c:3234:13: sparse: sparse: incorrect type in argument 1 (different modifiers) @@ expected int ( *threadfn )( ... ) @@ got int ( [noreint ( *threadfn )( ... ) @@ kernel/rcu/tree.c:3234:13: sparse: expected int ( *threadfn )( ... ) kernel/rcu/tree.c:3234:13: sparse: got int ( [noreturn] * )( ... ) kernel/rcu/tree.c:1110:13: sparse: sparse: context imbalance in 'rcu_start_this_gp' - different lock contexts for basic block kernel/rcu/tree.c:1502:9: sparse: sparse: context imbalance in 'rcu_gp_init' - different lock contexts for basic block kernel/rcu/tree.c:2190:9: sparse: sparse: context imbalance in 'force_qs_rnp' - different lock contexts for basic block kernel/rcu/tree.c:2243:25: sparse: sparse: context imbalance in 'rcu_force_quiescent_state' - unexpected unlock kernel/rcu/tree_stall.h:640:9: sparse: sparse: context imbalance in 'rcu_check_gp_start_stall' - different lock contexts for basic block kernel/rcu/tree_exp.h:193:9: sparse: sparse: context imbalance in '__rcu_report_exp_rnp' - different lock contexts for basic block vim +2408 kernel/rcu/tree.c 2406 2407 static struct smp_hotplug_thread rcu_cpu_thread_spec = { > 2408 .store = &rcu_data.rcu_cpu_kthread_task, 2409 .thread_should_run = rcu_cpu_kthread_should_run, 2410 .thread_fn = rcu_cpu_kthread, 2411 .thread_comm = "rcuc/%u", 2412 .setup = rcu_cpu_kthread_setup, 2413 .park = rcu_cpu_kthread_park, 2414 }; 2415 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
