kernel/sys.c:2224:16: sparse: sparse: cast removes address space '__user' of expression

From: kernel test robot
Date: Wed Feb 08 2023 - 20:20:52 EST

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Hi Aurelien,

First bad commit (maybe != root cause):

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0983f6bf2bfc0789b51ddf7315f644ff4da50acb
commit: 6df2a016c0c8a3d0933ef33dd192ea6606b115e3 riscv: fix build with binutils 2.38
date: 12 months ago
config: riscv-randconfig-s051-20230209 (https://download.01.org/0day-ci/archive/20230209/202302090906.TbG52nlU-lkp@xxxxxxxxx/config)
compiler: riscv32-linux-gcc (GCC) 12.1.0
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: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6df2a016c0c8a3d0933ef33dd192ea6606b115e3
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 6df2a016c0c8a3d0933ef33dd192ea6606b115e3
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash drivers/usb/core/ drivers/vhost/ fs/ kernel/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302090906.TbG52nlU-lkp@xxxxxxxxx

sparse warnings: (new ones prefixed by >>)
>> kernel/sys.c:2224:16: sparse: sparse: cast removes address space '__user' of expression
kernel/sys.c:1068:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p1 @@ got struct task_struct [noderef] __rcu *real_parent @@
kernel/sys.c:1068:32: sparse: expected struct task_struct *p1
kernel/sys.c:1068:32: sparse: got struct task_struct [noderef] __rcu *real_parent
kernel/sys.c: note: in included file (through include/linux/rcuwait.h, include/linux/percpu-rwsem.h, include/linux/fs.h, ...):
include/linux/sched/signal.h:714:37: 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:714:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:714:37: sparse: got struct spinlock [noderef] __rcu *
--
kernel/signal.c:2076:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sighand_struct *psig @@ got struct sighand_struct [noderef] __rcu *[noderef] __rcu sighand @@
kernel/signal.c:2076:14: sparse: expected struct sighand_struct *psig
kernel/signal.c:2076:14: sparse: got struct sighand_struct [noderef] __rcu *[noderef] __rcu sighand
kernel/signal.c:2105:46: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected struct task_struct *t @@ got struct task_struct [noderef] __rcu *parent @@
kernel/signal.c:2105:46: sparse: expected struct task_struct *t
kernel/signal.c:2105:46: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2106:34: 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:2106:34: sparse: expected struct task_struct *parent
kernel/signal.c:2106:34: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2135:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *parent @@ got struct task_struct [noderef] __rcu *parent @@
kernel/signal.c:2135:24: sparse: expected struct task_struct *parent
kernel/signal.c:2135:24: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2138:24: 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:2138:24: sparse: expected struct task_struct *parent
kernel/signal.c:2138:24: sparse: got struct task_struct [noderef] __rcu *real_parent
kernel/signal.c:2171:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sighand_struct *sighand @@ got struct sighand_struct [noderef] __rcu *sighand @@
kernel/signal.c:2171:17: sparse: expected struct sighand_struct *sighand
kernel/signal.c:2171:17: sparse: got struct sighand_struct [noderef] __rcu *sighand
kernel/signal.c:2209:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2209:41: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2209:41: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2211:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2211:39: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2211:39: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2261:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2261:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2261:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2316:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2316:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2316:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2350:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2350:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2350:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2352:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2352:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2352:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2450:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2450:41: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2450:41: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2535:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2535:41: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2535:41: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2547:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2547:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2547:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2585:52: 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:2585:52: sparse: expected struct task_struct *tsk
kernel/signal.c:2585:52: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2587:49: sparse: sparse: cast removes address space '__rcu' of expression
kernel/signal.c:2625:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sighand_struct *sighand @@ got struct sighand_struct [noderef] __rcu *sighand @@
kernel/signal.c:2625:49: sparse: expected struct sighand_struct *sighand
kernel/signal.c:2625:49: sparse: got struct sighand_struct [noderef] __rcu *sighand
kernel/signal.c:2961:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2961:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2961:27: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2981:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2981:29: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2981:29: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3048:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3048:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3048:27: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3050:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3050:29: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3050:29: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3201:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3201:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3201:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3204:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3204:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3204:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3591:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3591:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3591:27: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3603:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3603:37: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3603:37: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3608:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3608:35: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3608:35: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3613:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3613:29: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3613:29: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:4067:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:4067:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:4067:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:4079:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:4079:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:4079:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:4097:11: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct k_sigaction *k @@ got struct k_sigaction [noderef] __rcu * @@
kernel/signal.c:4097:11: sparse: expected struct k_sigaction *k
kernel/signal.c:4097:11: sparse: got struct k_sigaction [noderef] __rcu *
kernel/signal.c:4099:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:4099:25: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:4099:25: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:4101:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:4101:35: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:4101:35: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:4149:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:4149:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:4149:27: sparse: got struct spinlock [noderef] __rcu *
>> kernel/signal.c:4256:19: sparse: sparse: cast removes address space '__user' of expression
kernel/signal.c:69:34: 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
kernel/signal.c:1034:13: 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:714:37: 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:714:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:714:37: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:1301:9: sparse: sparse: context imbalance in 'do_send_sig_info' - different lock contexts for basic block
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:714:37: 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:714:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:714:37: 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:714:37: 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:714:37: sparse: expected struct spinlock [usertype] *lock
include/linux/sched/signal.h:714:37: 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:2058:40: sparse: sparse: dereference of noderef expression
kernel/signal.c:2058:40: sparse: sparse: dereference of noderef expression
kernel/signal.c:2058:40: sparse: sparse: dereference of noderef expression
kernel/signal.c:2058:40: sparse: sparse: dereference of noderef expression
kernel/signal.c: note: in included file (through arch/riscv/include/asm/perf_event.h, include/linux/perf_event.h, include/linux/trace_events.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:2377:13: sparse: sparse: context imbalance in 'do_signal_stop' - different lock contexts for basic block
kernel/signal.c:2587:49: sparse: sparse: dereference of noderef expression
kernel/signal.c:2587:49: sparse: sparse: dereference of noderef expression
kernel/signal.c:2587:49: sparse: sparse: dereference of noderef expression
kernel/signal.c:2587:49: sparse: sparse: dereference of noderef expression
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:2698:17: sparse: sparse: context imbalance in 'get_signal' - different lock contexts for basic block
kernel/signal.c:4068:33: sparse: sparse: dereference of noderef expression
--
fs/eventpoll.c: note: in included file:
>> include/linux/eventpoll.h:81:13: sparse: sparse: restricted __poll_t degrades to integer
>> include/linux/eventpoll.h:81:13: sparse: sparse: restricted __poll_t degrades to integer
include/linux/eventpoll.h:81:13: sparse: sparse: cast from restricted __poll_t
--
>> drivers/usb/core/devio.c:2045:13: sparse: sparse: cast removes address space '__user' of expression
--
drivers/vhost/vhost.c:969:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:969:16: sparse: sparse: restricted __virtio16 degrades to integer
>> drivers/vhost/vhost.c:969:16: sparse: sparse: cast from restricted __virtio16
drivers/vhost/vhost.c:969:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:969:16: sparse: sparse: restricted __virtio16 degrades to integer
>> drivers/vhost/vhost.c:969:16: sparse: sparse: cast from restricted __virtio16
drivers/vhost/vhost.c:954:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:954:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:954:16: sparse: sparse: cast from restricted __virtio16
drivers/vhost/vhost.c:954:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:954:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:954:16: sparse: sparse: cast from restricted __virtio16
drivers/vhost/vhost.c:1046:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1046:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1046:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1046:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1046:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1046:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1021:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1021:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1021:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1021:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1021:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1021:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1027:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1027:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1027:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1027:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1027:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1027:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:976:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:976:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:976:16: sparse: sparse: cast from restricted __virtio16
drivers/vhost/vhost.c:976:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:976:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:976:16: sparse: sparse: cast from restricted __virtio16
drivers/vhost/vhost.c:1034:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1034:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1034:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1034:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1034:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1034:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1040:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1040:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1040:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1040:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1040:16: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vhost.c:1040:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1021:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1021:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1021:16: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vhost.c:1021:16: sparse: sparse: cast to restricted __virtio16
--
>> kernel/futex/syscalls.c:77:16: sparse: sparse: cast removes address space '__user' of expression
--
>> fs/ecryptfs/miscdev.c:285:13: sparse: sparse: restricted __be32 degrades to integer
>> fs/ecryptfs/miscdev.c:285:13: sparse: sparse: restricted __be32 degrades to integer
fs/ecryptfs/miscdev.c:285:13: sparse: sparse: cast from restricted __be32

vim +/__user +2224 kernel/sys.c

300f786b2683f8 Cyrill Gorcunov 2012-06-07 2220
52b3694157e3aa Amnon Shiloh 2013-04-30 2221 #ifdef CONFIG_CHECKPOINT_RESTORE
986b9eacb25910 Rasmus Villemoes 2020-10-24 2222 static int prctl_get_tid_address(struct task_struct *me, int __user * __user *tid_addr)
300f786b2683f8 Cyrill Gorcunov 2012-06-07 2223 {
300f786b2683f8 Cyrill Gorcunov 2012-06-07 @2224 return put_user(me->clear_child_tid, tid_addr);
300f786b2683f8 Cyrill Gorcunov 2012-06-07 2225 }
52b3694157e3aa Amnon Shiloh 2013-04-30 2226 #else
986b9eacb25910 Rasmus Villemoes 2020-10-24 2227 static int prctl_get_tid_address(struct task_struct *me, int __user * __user *tid_addr)
300f786b2683f8 Cyrill Gorcunov 2012-06-07 2228 {
300f786b2683f8 Cyrill Gorcunov 2012-06-07 2229 return -EINVAL;
300f786b2683f8 Cyrill Gorcunov 2012-06-07 2230 }
028ee4be34a09a Cyrill Gorcunov 2012-01-12 2231 #endif
028ee4be34a09a Cyrill Gorcunov 2012-01-12 2232

:::::: The code at line 2224 was first introduced by commit
:::::: 300f786b2683f8bb1ec0afb6e1851183a479c86d c/r: prctl: add ability to get clear_tid_address

:::::: TO: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

--
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