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a44fdfb70b94 with local (Exim 4.95) (envelope-from ) id 1ncamN-0005pj-36; Thu, 07 Apr 2022 22:39:03 +0000 Date: Fri, 8 Apr 2022 06:38:14 +0800 From: kernel test robot To: Peter Zijlstra Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: [peterz-queue:sched/wip.freezer 1/5] include/linux/sched/signal.h:452:9: sparse: sparse: dereference of noderef expression Message-ID: <202204080633.IYOBYNFm-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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@intel.com/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 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