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* kernel/signal.c:1889:37: sparse: sparse: incorrect type in argument 1 (different address spaces)
@ 2025-12-11  2:33 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2025-12-11  2:33 UTC (permalink / raw)
  To: Thomas Gleixner; +Cc: oe-kbuild-all, linux-kernel, Frederic Weisbecker

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   8c8081cc599fcafa25371d50959c17e154f9fd08
commit: 68f99be287a59d50a9ad231d523f7e578f8bd28a signal: Confine POSIX_TIMERS properly
date:   1 year, 1 month ago
config: i386-randconfig-062-20251211 (https://download.01.org/0day-ci/archive/20251211/202512111003.5hulufeZ-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111003.5hulufeZ-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/202512111003.5hulufeZ-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   kernel/signal.c: note: in included file (through arch/x86/include/uapi/asm/signal.h, arch/x86/include/asm/signal.h, include/uapi/linux/signal.h, ...):
   include/uapi/asm-generic/signal-defs.h:83:29: sparse: sparse: multiple address spaces given
   kernel/signal.c:188:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:188:31: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:188:31: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:191:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:191:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:191:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:473:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:473:9: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:473:9: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:477:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:477:34: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:477:34: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:499:53: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct k_sigaction *ka @@     got struct k_sigaction [noderef] __rcu * @@
   kernel/signal.c:499:53: sparse:     expected struct k_sigaction *ka
   kernel/signal.c:499:53: sparse:     got struct k_sigaction [noderef] __rcu *
   include/uapi/asm-generic/signal-defs.h:83:29: sparse: sparse: multiple address spaces given
   kernel/signal.c:595:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct lockdep_map const *lock @@     got struct lockdep_map [noderef] __rcu * @@
   kernel/signal.c:595:9: sparse:     expected struct lockdep_map const *lock
   kernel/signal.c:595:9: sparse:     got struct lockdep_map [noderef] __rcu *
   kernel/signal.c:692:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct lockdep_map const *lock @@     got struct lockdep_map [noderef] __rcu * @@
   kernel/signal.c:692:9: sparse:     expected struct lockdep_map const *lock
   kernel/signal.c:692:9: sparse:     got struct lockdep_map [noderef] __rcu *
   kernel/signal.c:817:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct lockdep_map const *lock @@     got struct lockdep_map [noderef] __rcu * @@
   kernel/signal.c:817:9: sparse:     expected struct lockdep_map const *lock
   kernel/signal.c:817:9: sparse:     got struct lockdep_map [noderef] __rcu *
   kernel/signal.c:1012:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct lockdep_map const *lock @@     got struct lockdep_map [noderef] __rcu * @@
   kernel/signal.c:1012:9: sparse:     expected struct lockdep_map const *lock
   kernel/signal.c:1012:9: sparse:     got struct lockdep_map [noderef] __rcu *
   kernel/signal.c:1203:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned char * @@
   kernel/signal.c:1203:29: sparse:     expected void const volatile [noderef] __user *ptr
   kernel/signal.c:1203:29: sparse:     got unsigned char *
   kernel/signal.c:1264:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:1264:9: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:1264:9: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:1265:16: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct k_sigaction *action @@     got struct k_sigaction [noderef] __rcu * @@
   kernel/signal.c:1265:16: sparse:     expected struct k_sigaction *action
   kernel/signal.c:1265:16: sparse:     got struct k_sigaction [noderef] __rcu *
   kernel/signal.c:1286:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:1286:34: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:1286:34: sparse:     got struct spinlock [noderef] __rcu *
>> kernel/signal.c:1889:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *l @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:1889:37: sparse:     expected struct spinlock [usertype] *l
   kernel/signal.c:1889:37: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:1901:36: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:1901:36: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:1901:36: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2036:44: sparse: sparse: cast removes address space '__rcu' of expression
   kernel/signal.c:2055:65: 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:2055:65: sparse:     expected struct task_struct *tsk
   kernel/signal.c:2055:65: sparse:     got struct task_struct [noderef] __rcu *parent
   kernel/signal.c:2056:40: sparse: sparse: cast removes address space '__rcu' of expression
   kernel/signal.c:2074:14: 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:2074:14: sparse:     expected struct sighand_struct *psig
   kernel/signal.c:2074:14: sparse:     got struct sighand_struct [noderef] __rcu *[noderef] __rcu sighand
   kernel/signal.c:2103:53: 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:2103:53: sparse:     expected struct task_struct *t
   kernel/signal.c:2103:53: sparse:     got struct task_struct [noderef] __rcu *parent
   kernel/signal.c:2104:34: 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:2104:34: sparse:     expected struct task_struct *parent
   kernel/signal.c:2104:34: sparse:     got struct task_struct [noderef] __rcu *parent
   kernel/signal.c:2133:24: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct task_struct *parent @@     got struct task_struct [noderef] __rcu *parent @@
   kernel/signal.c:2133:24: sparse:     expected struct task_struct *parent
   kernel/signal.c:2133:24: sparse:     got struct task_struct [noderef] __rcu *parent
   kernel/signal.c:2136:24: 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:2136:24: sparse:     expected struct task_struct *parent
   kernel/signal.c:2136:24: sparse:     got struct task_struct [noderef] __rcu *real_parent
   kernel/signal.c:2169:17: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct sighand_struct *sighand @@     got struct sighand_struct [noderef] __rcu *sighand @@
   kernel/signal.c:2169:17: sparse:     expected struct sighand_struct *sighand
   kernel/signal.c:2169:17: 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: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:2326:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2326:31: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2326:31: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2366:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2366:31: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2366:31: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2368:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2368:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2368:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2466:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2466:41: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2466:41: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2550:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2550:41: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2550:41: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2562:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2562:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2562:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2605:52: 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:2605:52: sparse:     expected struct task_struct *tsk
   kernel/signal.c:2605:52: sparse:     got struct task_struct [noderef] __rcu *parent
   kernel/signal.c:2607:49: sparse: sparse: cast removes address space '__rcu' of expression
   kernel/signal.c:2645:49: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct sighand_struct *sighand @@     got struct sighand_struct [noderef] __rcu *sighand @@
   kernel/signal.c:2645:49: sparse:     expected struct sighand_struct *sighand
   kernel/signal.c:2645:49: sparse:     got struct sighand_struct [noderef] __rcu *sighand
   kernel/signal.c:2978:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2978:27: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2978:27: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2999:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2999:29: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2999:29: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3066:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3066:27: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3066:27: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3068:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3068:29: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3068:29: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3219:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3219:31: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3219:31: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3222:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3222:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3222:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3611:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3611:27: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3611:27: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3623:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3623:37: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3623:37: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3628:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3628:35: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3628:35: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3633:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3633:29: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3633:29: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:4109:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:4109:31: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:4109:31: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:4121:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:4121:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:4121:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:4139:11: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct k_sigaction *k @@     got struct k_sigaction [noderef] __rcu * @@
   kernel/signal.c:4139:11: sparse:     expected struct k_sigaction *k

vim +1889 kernel/signal.c

  1884	
  1885	void flush_itimer_signals(void)
  1886	{
  1887		struct task_struct *tsk = current;
  1888	
> 1889		guard(spinlock_irqsave)(&tsk->sighand->siglock);
  1890		__flush_itimer_signals(&tsk->pending);
  1891		__flush_itimer_signals(&tsk->signal->shared_pending);
  1892	}
  1893	

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