From: kernel test robot <lkp@intel.com>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev
Subject: [paulmckrcu:dev.2025.01.09a 57/60] kernel/rcu/srcutree.c:798:26: sparse: sparse: incorrect type in initializer (different address spaces)
Date: Tue, 14 Jan 2025 09:01:00 +0800 [thread overview]
Message-ID: <202501140806.qLVjWtmq-lkp@intel.com> (raw)
tree: https://github.com/paulmckrcu/linux dev.2025.01.09a
head: a99741861216c54658023bdc01f5ad5ad3330f52
commit: 7a99570b926cb1b906ef0c54613db372f859203e [57/60] fixup! srcu: Pull integer-to-pointer conversion into __srcu_ctr_to_ptr()
config: arc-randconfig-r133-20250114 (https://download.01.org/0day-ci/archive/20250114/202501140806.qLVjWtmq-lkp@intel.com/config)
compiler: arceb-elf-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20250114/202501140806.qLVjWtmq-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501140806.qLVjWtmq-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/rcu/srcutree.c:768:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got int * @@
kernel/rcu/srcutree.c:768:9: sparse: expected void const [noderef] __percpu *__vpp_verify
kernel/rcu/srcutree.c:768:9: sparse: got int *
kernel/rcu/srcutree.c:768:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got int * @@
kernel/rcu/srcutree.c:768:9: sparse: expected void const [noderef] __percpu *__vpp_verify
kernel/rcu/srcutree.c:768:9: sparse: got int *
kernel/rcu/srcutree.c:768:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got int * @@
kernel/rcu/srcutree.c:768:9: sparse: expected void const [noderef] __percpu *__vpp_verify
kernel/rcu/srcutree.c:768:9: sparse: got int *
kernel/rcu/srcutree.c:768:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got int * @@
kernel/rcu/srcutree.c:768:9: sparse: expected void const [noderef] __percpu *__vpp_verify
kernel/rcu/srcutree.c:768:9: sparse: got int *
kernel/rcu/srcutree.c:768:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got int * @@
kernel/rcu/srcutree.c:768:9: sparse: expected void const [noderef] __percpu *__vpp_verify
kernel/rcu/srcutree.c:768:9: sparse: got int *
kernel/rcu/srcutree.c:786:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct srcu_ctr [noderef] __percpu *scpp @@ got struct srcu_ctr *scp @@
kernel/rcu/srcutree.c:786:39: sparse: expected struct srcu_ctr [noderef] __percpu *scpp
kernel/rcu/srcutree.c:786:39: sparse: got struct srcu_ctr *scp
>> kernel/rcu/srcutree.c:798:26: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got struct srcu_ctr * @@
kernel/rcu/srcutree.c:798:26: sparse: expected void const [noderef] __percpu *__vpp_verify
kernel/rcu/srcutree.c:798:26: sparse: got struct srcu_ctr *
kernel/rcu/srcutree.c:371:13: sparse: sparse: context imbalance in 'spin_lock_irqsave_sdp_contention' - wrong count at exit
kernel/rcu/srcutree.c:389:13: sparse: sparse: context imbalance in 'spin_lock_irqsave_ssp_contention' - wrong count at exit
kernel/rcu/srcutree.c: note: in included file (through include/linux/srcu.h, include/linux/notifier.h, include/linux/memory_hotplug.h, ...):
include/linux/srcutree.h:226:36: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct srcu_ctr * @@ got struct srcu_ctr [noderef] __percpu * @@
include/linux/srcutree.h:226:36: sparse: expected struct srcu_ctr *
include/linux/srcutree.h:226:36: sparse: got struct srcu_ctr [noderef] __percpu *
include/linux/srcutree.h:226:36: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct srcu_ctr * @@ got struct srcu_ctr [noderef] __percpu * @@
include/linux/srcutree.h:226:36: sparse: expected struct srcu_ctr *
include/linux/srcutree.h:226:36: sparse: got struct srcu_ctr [noderef] __percpu *
include/linux/srcutree.h:226:36: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct srcu_ctr * @@ got struct srcu_ctr [noderef] __percpu * @@
include/linux/srcutree.h:226:36: sparse: expected struct srcu_ctr *
include/linux/srcutree.h:226:36: sparse: got struct srcu_ctr [noderef] __percpu *
include/linux/srcutree.h:226:36: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct srcu_ctr * @@ got struct srcu_ctr [noderef] __percpu * @@
include/linux/srcutree.h:226:36: sparse: expected struct srcu_ctr *
include/linux/srcutree.h:226:36: sparse: got struct srcu_ctr [noderef] __percpu *
include/linux/srcutree.h:226:36: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct srcu_ctr * @@ got struct srcu_ctr [noderef] __percpu * @@
include/linux/srcutree.h:226:36: sparse: expected struct srcu_ctr *
include/linux/srcutree.h:226:36: sparse: got struct srcu_ctr [noderef] __percpu *
kernel/rcu/srcutree.c:1006:9: sparse: sparse: context imbalance in 'srcu_funnel_exp_start' - unexpected unlock
kernel/rcu/srcutree.c:1095:9: sparse: sparse: context imbalance in 'srcu_funnel_gp_start' - unexpected unlock
kernel/rcu/srcutree.c:1335:9: sparse: sparse: context imbalance in 'srcu_gp_start_if_needed' - unexpected unlock
vim +798 kernel/rcu/srcutree.c
789
790 /*
791 * Removes the count for the old reader from the appropriate per-CPU
792 * element of the srcu_struct. Note that this may well be a different
793 * CPU than that which was incremented by the corresponding srcu_read_lock().
794 */
795 void __srcu_read_unlock_nmisafe(struct srcu_struct *ssp, int idx)
796 {
797 smp_mb__before_atomic(); /* C */ /* Avoid leaking the critical section. */
> 798 atomic_long_inc(&raw_cpu_ptr(__srcu_ctr_to_ptr(ssp, idx))->srcu_unlocks);
799 }
800 EXPORT_SYMBOL_GPL(__srcu_read_unlock_nmisafe);
801
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2025-01-14 1:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-14 1:01 kernel test robot [this message]
2025-01-14 5:01 ` [paulmckrcu:dev.2025.01.09a 57/60] kernel/rcu/srcutree.c:798:26: sparse: sparse: incorrect type in initializer (different address spaces) Paul E. McKenney
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