[peterz-queue:sched/wip.freezer 1/5] include/linux/sched/signal.h:452:9: sparse: sparse: dereference of noderef expression

From: kernel test robot
Date: Thu Apr 07 2022 - 18:39:12 EST

Next message: Yosry Ahmed: "[PATCH v2 0/4] memcg: introduce per-memcg proactive reclaim"
Previous message: Jonathan Marek: "Re: [PATCH] arm64: dts: qcom: sm8450: delete incorrect ufs interconnect fields"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/wip.freezer
head: ed5b8f90d21512ee2392f35dbb0ab867c66d243d
commit: 422f0905663b42f6f9ad8a7ec6c5962c7c6ff9f3 [1/5] sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED
config: sparc64-randconfig-s031-20220406 (https://download.01.org/0day-ci/archive/20220408/202204080633.IYOBYNFm-lkp@xxxxxxxxx/config)
compiler: sparc64-linux-gcc (GCC) 11.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=422f0905663b42f6f9ad8a7ec6c5962c7c6ff9f3
git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
git fetch --no-tags peterz-queue sched/wip.freezer
git checkout 422f0905663b42f6f9ad8a7ec6c5962c7c6ff9f3
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sparc64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

sparse warnings: (new ones prefixed by >>)
kernel/ptrace.c:54:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/ptrace.c:54:22: sparse: struct task_struct *
kernel/ptrace.c:54:22: sparse: struct task_struct [noderef] __rcu *
kernel/ptrace.c:73:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct [noderef] __rcu *parent @@ got struct task_struct *new_parent @@
kernel/ptrace.c:73:23: sparse: expected struct task_struct [noderef] __rcu *parent
kernel/ptrace.c:73:23: sparse: got struct task_struct *new_parent
kernel/ptrace.c:74:29: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct cred const [noderef] __rcu *ptracer_cred @@ got struct cred const * @@
kernel/ptrace.c:74:29: sparse: expected struct cred const [noderef] __rcu *ptracer_cred
kernel/ptrace.c:74:29: sparse: got struct cred const *
kernel/ptrace.c:128:18: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct cred const *old_cred @@ got struct cred const [noderef] __rcu *ptracer_cred @@
kernel/ptrace.c:128:18: sparse: expected struct cred const *old_cred
kernel/ptrace.c:128:18: sparse: got struct cred const [noderef] __rcu *ptracer_cred
kernel/ptrace.c:132:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:132:25: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:132:25: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:170:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:170:27: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:170:27: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:202:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:202:28: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:202:28: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:209:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:209:30: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:209:30: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:219:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/ptrace.c:219:9: sparse: struct task_struct [noderef] __rcu *
kernel/ptrace.c:219:9: sparse: struct task_struct *
kernel/ptrace.c:266:44: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/ptrace.c:266:44: sparse: struct task_struct [noderef] __rcu *
kernel/ptrace.c:266:44: sparse: struct task_struct *
kernel/ptrace.c:466:24: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:466:24: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:466:24: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:491:26: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:491:26: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:491:26: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:527:54: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *parent @@ got struct task_struct [noderef] __rcu *parent @@
kernel/ptrace.c:527:54: sparse: expected struct task_struct *parent
kernel/ptrace.c:527:54: sparse: got struct task_struct [noderef] __rcu *parent
kernel/ptrace.c:535:53: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *new_parent @@ got struct task_struct [noderef] __rcu *real_parent @@
kernel/ptrace.c:535:53: sparse: expected struct task_struct *new_parent
kernel/ptrace.c:535:53: sparse: got struct task_struct [noderef] __rcu *real_parent
kernel/ptrace.c:583:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p1 @@ got struct task_struct [noderef] __rcu *real_parent @@
kernel/ptrace.c:583:41: sparse: expected struct task_struct *p1
kernel/ptrace.c:583:41: sparse: got struct task_struct [noderef] __rcu *real_parent
kernel/ptrace.c:585:50: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sighand_struct *sigh @@ got struct sighand_struct [noderef] __rcu *sighand @@
kernel/ptrace.c:585:50: sparse: expected struct sighand_struct *sigh
kernel/ptrace.c:585:50: sparse: got struct sighand_struct [noderef] __rcu *sighand
kernel/ptrace.c:776:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:776:37: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:776:37: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:784:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:784:39: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:784:39: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:907:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:907:37: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:907:37: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:911:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:911:39: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:911:39: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:1141:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:1141:37: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:1141:37: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:1143:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/ptrace.c:1143:39: sparse: expected struct spinlock [usertype] *lock
kernel/ptrace.c:1143:39: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c: note: in included file (through include/linux/rcuwait.h, include/linux/percpu-rwsem.h, include/linux/fs.h, ...):
>> include/linux/sched/signal.h:452:9: sparse: sparse: dereference of noderef expression
kernel/ptrace.c:533:38: sparse: sparse: dereference of noderef expression
include/linux/sched/signal.h:744:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
include/linux/sched/signal.h:744:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:744:37: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:723:9: sparse: sparse: context imbalance in 'ptrace_getsiginfo' - different lock contexts for basic block
include/linux/sched/signal.h:744:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
include/linux/sched/signal.h:744:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:744:37: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:739:9: sparse: sparse: context imbalance in 'ptrace_setsiginfo' - different lock contexts for basic block
kernel/ptrace.c:913:9: sparse: sparse: context imbalance in 'ptrace_resume' - different lock contexts for basic block
>> include/linux/sched/signal.h:452:9: sparse: sparse: dereference of noderef expression
include/linux/sched/signal.h:744:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
include/linux/sched/signal.h:744:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:744:37: sparse: got struct spinlock [noderef] __rcu *
>> include/linux/sched/signal.h:452:9: sparse: sparse: dereference of noderef expression
include/linux/sched/signal.h:744:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
include/linux/sched/signal.h:744:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:744:37: sparse: got struct spinlock [noderef] __rcu *
kernel/ptrace.c:1295:9: sparse: sparse: context imbalance in 'ptrace_request' - different lock contexts for basic block
--
kernel/signal.c:2107:46: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2108:34: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *parent @@ got struct task_struct [noderef] __rcu *parent @@
kernel/signal.c:2108:34: sparse: expected struct task_struct *parent
kernel/signal.c:2108:34: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2137:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *parent @@ got struct task_struct [noderef] __rcu *parent @@
kernel/signal.c:2137:24: sparse: expected struct task_struct *parent
kernel/signal.c:2137:24: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2140:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *parent @@ got struct task_struct [noderef] __rcu *real_parent @@
kernel/signal.c:2140:24: sparse: expected struct task_struct *parent
kernel/signal.c:2140:24: sparse: got struct task_struct [noderef] __rcu *real_parent
kernel/signal.c:2173:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sighand_struct *sighand @@ got struct sighand_struct [noderef] __rcu *sighand @@
kernel/signal.c:2173:17: sparse: expected struct sighand_struct *sighand
kernel/signal.c:2173:17: sparse: got struct sighand_struct [noderef] __rcu *sighand
kernel/signal.c:2214:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2214:41: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2214:41: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2216:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2216:39: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2216:39: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2268:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2268:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2268:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2324:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2324:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2324:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2365:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2365:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2365:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2367:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2367:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2367:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2467:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2467:41: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2467:41: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2551:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2551:41: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2551:41: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2563:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2563:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2563:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2598:52: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *parent @@
kernel/signal.c:2598:52: sparse: expected struct task_struct *tsk
kernel/signal.c:2598:52: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2600:49: sparse: sparse: cast removes address space '__rcu' of expression
kernel/signal.c:2638:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sighand_struct *sighand @@ got struct sighand_struct [noderef] __rcu *sighand @@
kernel/signal.c:2638:49: sparse: expected struct sighand_struct *sighand
kernel/signal.c:2638:49: sparse: got struct sighand_struct [noderef] __rcu *sighand
kernel/signal.c:2967:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2967:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2967:27: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2987:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2987:29: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2987:29: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3054:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3054:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3054:27: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3056:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3056:29: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3056:29: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3207:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3207:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3207:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3210:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3210:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3210:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3597:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3597:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3597:27: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3609:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3609:37: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3609:37: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3614:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3614:35: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3614:35: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3619:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3619:29: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3619:29: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:4073:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:4073:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:4073:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:4085:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:4085:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:4085:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:4103:11: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct k_sigaction *k @@ got struct k_sigaction [noderef] __rcu * @@
kernel/signal.c:4103:11: sparse: expected struct k_sigaction *k
kernel/signal.c:4103:11: sparse: got struct k_sigaction [noderef] __rcu *
kernel/signal.c:4105:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:4105:25: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:4105:25: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:4107:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:4107:35: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:4107:35: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:4155:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:4155:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:4155:27: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:69:34: sparse: sparse: dereference of noderef expression
kernel/signal.c: note: in included file (through include/linux/sched/cputime.h):
include/linux/sched/signal.h:442:9: sparse: sparse: dereference of noderef expression
kernel/signal.c:529:35: sparse: sparse: dereference of noderef expression
kernel/signal.c:557:52: sparse: sparse: dereference of noderef expression
>> include/linux/sched/signal.h:452:9: sparse: sparse: dereference of noderef expression
kernel/signal.c:1035:13: sparse: sparse: dereference of noderef expression
include/linux/sched/signal.h:442:9: sparse: sparse: dereference of noderef expression
include/linux/sched/signal.h:442:9: sparse: sparse: dereference of noderef expression
kernel/signal.c: note: in included file:
include/linux/signalfd.h:21:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct wait_queue_head *wq_head @@ got struct wait_queue_head [noderef] __rcu * @@
include/linux/signalfd.h:21:13: sparse: expected struct wait_queue_head *wq_head
include/linux/signalfd.h:21:13: sparse: got struct wait_queue_head [noderef] __rcu *
include/linux/signalfd.h:22:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct wait_queue_head *wq_head @@ got struct wait_queue_head [noderef] __rcu * @@
include/linux/signalfd.h:22:17: sparse: expected struct wait_queue_head *wq_head
include/linux/signalfd.h:22:17: sparse: got struct wait_queue_head [noderef] __rcu *
kernel/signal.c: note: in included file (through include/linux/sched/cputime.h):
include/linux/sched/signal.h:744:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
include/linux/sched/signal.h:744:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:744:37: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:1302:9: sparse: sparse: context imbalance in 'do_send_sig_info' - different lock contexts for basic block
include/linux/sched/signal.h:442:9: sparse: sparse: dereference of noderef expression
kernel/signal.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, include/linux/mmzone.h, ...):
include/linux/rcupdate.h:725:9: sparse: sparse: context imbalance in '__lock_task_sighand' - different lock contexts for basic block
kernel/signal.c: note: in included file (through include/linux/sched/cputime.h):
include/linux/sched/signal.h:744:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
include/linux/sched/signal.h:744:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:744:37: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c: note: in included file:
include/linux/signalfd.h:21:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct wait_queue_head *wq_head @@ got struct wait_queue_head [noderef] __rcu * @@
include/linux/signalfd.h:21:13: sparse: expected struct wait_queue_head *wq_head
include/linux/signalfd.h:21:13: sparse: got struct wait_queue_head [noderef] __rcu *
include/linux/signalfd.h:22:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct wait_queue_head *wq_head @@ got struct wait_queue_head [noderef] __rcu * @@
include/linux/signalfd.h:22:17: sparse: expected struct wait_queue_head *wq_head
include/linux/signalfd.h:22:17: sparse: got struct wait_queue_head [noderef] __rcu *
kernel/signal.c: note: in included file (through include/linux/sched/cputime.h):
include/linux/sched/signal.h:744:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
include/linux/sched/signal.h:744:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:744:37: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, include/linux/mmzone.h, ...):
include/linux/rcupdate.h:725:9: sparse: sparse: context imbalance in 'send_sigqueue' - wrong count at exit
kernel/signal.c:2060:40: sparse: sparse: dereference of noderef expression
kernel/signal.c:2060:40: sparse: sparse: dereference of noderef expression
kernel/signal.c:2060:40: sparse: sparse: dereference of noderef expression
kernel/signal.c:2060:40: sparse: sparse: dereference of noderef expression
kernel/signal.c: note: in included file (through include/uapi/asm-generic/bpf_perf_event.h, arch/sparc/include/generated/uapi/asm/bpf_perf_event.h, ...):
include/linux/ptrace.h:99:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p1 @@ got struct task_struct [noderef] __rcu *real_parent @@
include/linux/ptrace.h:99:40: sparse: expected struct task_struct *p1
include/linux/ptrace.h:99:40: sparse: got struct task_struct [noderef] __rcu *real_parent
include/linux/ptrace.h:99:60: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p2 @@ got struct task_struct [noderef] __rcu *parent @@
include/linux/ptrace.h:99:60: sparse: expected struct task_struct *p2
include/linux/ptrace.h:99:60: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c: note: in included file (through include/linux/sched/cputime.h):
include/linux/sched/signal.h:442:9: sparse: sparse: dereference of noderef expression
kernel/signal.c:2393:13: sparse: sparse: context imbalance in 'do_signal_stop' - different lock contexts for basic block
kernel/signal.c:2600:49: sparse: sparse: dereference of noderef expression
kernel/signal.c:2600:49: sparse: sparse: dereference of noderef expression
kernel/signal.c:2600:49: sparse: sparse: dereference of noderef expression
kernel/signal.c:2600:49: sparse: sparse: dereference of noderef expression
kernel/signal.c: note: in included file (through include/uapi/asm-generic/bpf_perf_event.h, arch/sparc/include/generated/uapi/asm/bpf_perf_event.h, ...):
include/linux/ptrace.h:99:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p1 @@ got struct task_struct [noderef] __rcu *real_parent @@
include/linux/ptrace.h:99:40: sparse: expected struct task_struct *p1
include/linux/ptrace.h:99:40: sparse: got struct task_struct [noderef] __rcu *real_parent
include/linux/ptrace.h:99:60: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p2 @@ got struct task_struct [noderef] __rcu *parent @@
include/linux/ptrace.h:99:60: sparse: expected struct task_struct *p2
include/linux/ptrace.h:99:60: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2720:33: sparse: sparse: context imbalance in 'get_signal' - unexpected unlock
kernel/signal.c: note: in included file (through include/linux/sched/cputime.h):
include/linux/sched/signal.h:442:9: sparse: sparse: dereference of noderef expression
kernel/signal.c:4074:33: sparse: sparse: dereference of noderef expression

vim +452 include/linux/sched/signal.h

449
450 static inline void ptrace_signal_wake_up(struct task_struct *t, bool resume)
451 {
> 452 lockdep_assert_held(t->sighand->siglock);
453
454 if (resume)
455 t->jobctl &= ~JOBCTL_TRACED;
456
457 signal_wake_up_state(t, resume ? __TASK_TRACED : 0);
458 }
459

--
0-DAY CI Kernel Test Service
https://01.org/lkp

Next message: Yosry Ahmed: "[PATCH v2 0/4] memcg: introduce per-memcg proactive reclaim"
Previous message: Jonathan Marek: "Re: [PATCH] arm64: dts: qcom: sm8450: delete incorrect ufs interconnect fields"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]