* [linux-next:master 6998/14724] fs/signalfd.c:53:40: sparse: sparse: incorrect type in initializer (different address spaces)
@ 2026-10-06 17:14 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-10-06 17:14 UTC (permalink / raw)
To: Oleg Nesterov; +Cc: oe-kbuild-all, Kees Cook
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: eea3fef32a9cf36abcb5975a5a594e4135a6b026
commit: d72e0fb3b00c6a1146bcfd7186ad9f6f609ba236 [6998/14724] signalfd: don't dequeue the forced fatal signals
config: sh-randconfig-r2306-20261006 (https://download.01.org/0day-ci/archive/20261006/202610061907.TNooP59U-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 9.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261006/202610061907.TNooP59U-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/202610061907.TNooP59U-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> fs/signalfd.c:53:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct k_sigaction *k @@ got struct k_sigaction [noderef] __rcu * @@
fs/signalfd.c:53:40: sparse: expected struct k_sigaction *k
fs/signalfd.c:53:40: sparse: got struct k_sigaction [noderef] __rcu *
fs/signalfd.c:69:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct wait_queue_head [usertype] *wait_address @@ got struct wait_queue_head [noderef] __rcu * @@
fs/signalfd.c:69:33: sparse: expected struct wait_queue_head [usertype] *wait_address
fs/signalfd.c:69:33: sparse: got struct wait_queue_head [noderef] __rcu *
fs/signalfd.c:71:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:71:31: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:71:31: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:76:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:76:33: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:76:33: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:110:32: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:128:33: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:131:33: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:135:33: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:151:32: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:155:38: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:175:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:175:31: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:175:31: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:185:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:185:41: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:185:41: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:189:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct wait_queue_head *wq_head @@ got struct wait_queue_head [noderef] __rcu * @@
fs/signalfd.c:189:32: sparse: expected struct wait_queue_head *wq_head
fs/signalfd.c:189:32: sparse: got struct wait_queue_head [noderef] __rcu *
fs/signalfd.c:199:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:199:41: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:199:41: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:201:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:201:39: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:201:39: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:204:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:204:33: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:204:33: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:206:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct wait_queue_head *wq_head @@ got struct wait_queue_head [noderef] __rcu * @@
fs/signalfd.c:206:35: sparse: expected struct wait_queue_head *wq_head
fs/signalfd.c:206:35: sparse: got struct wait_queue_head [noderef] __rcu *
fs/signalfd.c:305:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:305:39: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:305:39: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:307:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:307:41: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:307:41: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:309:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct wait_queue_head *wq_head @@ got struct wait_queue_head [noderef] __rcu * @@
fs/signalfd.c:309:17: sparse: expected struct wait_queue_head *wq_head
fs/signalfd.c:309:17: sparse: got struct wait_queue_head [noderef] __rcu *
vim +53 fs/signalfd.c
50
51 static void refine_sigmask(struct signalfd_ctx *ctx, sigset_t *sigmask)
52 {
> 53 struct k_sigaction *k = current->sighand->action;
54 int n;
55
56 *sigmask = ctx->sigmask;
57 for (n = 1; n <= _NSIG; ++n, ++k) {
58 if (k->sa.sa_flags & SA_IMMUTABLE)
59 sigaddset(sigmask, n);
60 }
61 }
62
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-10-06 17:14 [linux-next:master 6998/14724] fs/signalfd.c:53:40: sparse: sparse: incorrect type in initializer (different address spaces) kernel test robot
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