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Message-ID: <202308111025.QvCwtqk7-lkp@intel.com>
Date:   Fri, 11 Aug 2023 10:28:39 +0800
From:   kernel test robot <lkp@...el.com>
To:     Qing Zhang <zhangqing@...ngson.cn>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Huacai Chen <chenhuacai@...nel.org>
Subject: fs/eventpoll.c:620:9: sparse: sparse: incorrect type in argument 1
 (different address spaces)

Hi Qing,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   25aa0bebba72b318e71fe205bfd1236550cc9534
commit: 93a4fa622eb061f75f87f0cf9609ab4e69c67d01 LoongArch: Add STACKTRACE support
date:   12 months ago
config: loongarch-randconfig-r072-20230811 (https://download.01.org/0day-ci/archive/20230811/202308111025.QvCwtqk7-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230811/202308111025.QvCwtqk7-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308111025.QvCwtqk7-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> fs/eventpoll.c:620:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:620:9: sparse:     expected void *ptr
   fs/eventpoll.c:620:9: sparse:     got unsigned int [noderef] __percpu *
>> fs/eventpoll.c:620:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:620:9: sparse:     expected void *ptr
   fs/eventpoll.c:620:9: sparse:     got unsigned int [noderef] __percpu *
>> fs/eventpoll.c:620:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:620:9: sparse:     expected void *ptr
   fs/eventpoll.c:620:9: sparse:     got unsigned int [noderef] __percpu *
>> fs/eventpoll.c:620:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:620:9: sparse:     expected void *ptr
   fs/eventpoll.c:620:9: sparse:     got unsigned int [noderef] __percpu *
>> fs/eventpoll.c:620:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:620:9: sparse:     expected void *ptr
   fs/eventpoll.c:620:9: sparse:     got int [noderef] __percpu *
>> fs/eventpoll.c:620:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:620:9: sparse:     expected void *ptr
   fs/eventpoll.c:620:9: sparse:     got int [noderef] __percpu *
>> fs/eventpoll.c:620:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:620:9: sparse:     expected void *ptr
   fs/eventpoll.c:620:9: sparse:     got int [noderef] __percpu *
>> fs/eventpoll.c:620:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:620:9: sparse:     expected void *ptr
   fs/eventpoll.c:620:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:692:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:692:9: sparse:     expected void *ptr
   fs/eventpoll.c:692:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:692:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:692:9: sparse:     expected void *ptr
   fs/eventpoll.c:692:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:692:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:692:9: sparse:     expected void *ptr
   fs/eventpoll.c:692:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:692:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:692:9: sparse:     expected void *ptr
   fs/eventpoll.c:692:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:692:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:692:9: sparse:     expected void *ptr
   fs/eventpoll.c:692:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:692:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:692:9: sparse:     expected void *ptr
   fs/eventpoll.c:692:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:692:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:692:9: sparse:     expected void *ptr
   fs/eventpoll.c:692:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:692:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:692:9: sparse:     expected void *ptr
   fs/eventpoll.c:692:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1456:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1456:9: sparse:     expected void *ptr
   fs/eventpoll.c:1456:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1456:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1456:9: sparse:     expected void *ptr
   fs/eventpoll.c:1456:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1456:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1456:9: sparse:     expected void *ptr
   fs/eventpoll.c:1456:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1456:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1456:9: sparse:     expected void *ptr
   fs/eventpoll.c:1456:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1456:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1456:9: sparse:     expected void *ptr
   fs/eventpoll.c:1456:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1456:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1456:9: sparse:     expected void *ptr
   fs/eventpoll.c:1456:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1456:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1456:9: sparse:     expected void *ptr
   fs/eventpoll.c:1456:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1456:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1456:9: sparse:     expected void *ptr
   fs/eventpoll.c:1456:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1571:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1571:9: sparse:     expected void *ptr
   fs/eventpoll.c:1571:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1571:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1571:9: sparse:     expected void *ptr
   fs/eventpoll.c:1571:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1571:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1571:9: sparse:     expected void *ptr
   fs/eventpoll.c:1571:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1571:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1571:9: sparse:     expected void *ptr
   fs/eventpoll.c:1571:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1571:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1571:9: sparse:     expected void *ptr
   fs/eventpoll.c:1571:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1571:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1571:9: sparse:     expected void *ptr
   fs/eventpoll.c:1571:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1571:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1571:9: sparse:     expected void *ptr
   fs/eventpoll.c:1571:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1571:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1571:9: sparse:     expected void *ptr
   fs/eventpoll.c:1571:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1775:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1775:9: sparse:     expected void *ptr
   fs/eventpoll.c:1775:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1775:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1775:9: sparse:     expected void *ptr
   fs/eventpoll.c:1775:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1775:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1775:9: sparse:     expected void *ptr
   fs/eventpoll.c:1775:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1775:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   fs/eventpoll.c:1775:9: sparse:     expected void *ptr
   fs/eventpoll.c:1775:9: sparse:     got unsigned int [noderef] __percpu *
   fs/eventpoll.c:1775:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1775:9: sparse:     expected void *ptr
   fs/eventpoll.c:1775:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1775:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1775:9: sparse:     expected void *ptr
   fs/eventpoll.c:1775:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1775:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1775:9: sparse:     expected void *ptr
   fs/eventpoll.c:1775:9: sparse:     got int [noderef] __percpu *
   fs/eventpoll.c:1775:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   fs/eventpoll.c:1775:9: sparse:     expected void *ptr
   fs/eventpoll.c:1775:9: sparse:     got int [noderef] __percpu *

vim +620 fs/eventpoll.c

eea1d585917c53 Eric Wong       2013-04-30  604  
92e64178405599 Davidlohr Bueso 2018-08-21  605  
5071f97ec6d74f Davide Libenzi  2009-03-31  606  /*
57804b1cc46167 Al Viro         2020-08-31  607   * ep->mutex needs to be held because we could be hit by
e057e15ff66a62 Tony Battersby  2009-03-31  608   * eventpoll_release_file() and epoll_ctl().
5071f97ec6d74f Davide Libenzi  2009-03-31  609   */
57804b1cc46167 Al Viro         2020-08-31  610  static void ep_start_scan(struct eventpoll *ep, struct list_head *txlist)
57804b1cc46167 Al Viro         2020-08-31  611  {
5071f97ec6d74f Davide Libenzi  2009-03-31  612  	/*
5071f97ec6d74f Davide Libenzi  2009-03-31  613  	 * Steal the ready list, and re-init the original one to the
5071f97ec6d74f Davide Libenzi  2009-03-31  614  	 * empty list. Also, set ep->ovflist to NULL so that events
5071f97ec6d74f Davide Libenzi  2009-03-31  615  	 * happening while looping w/out locks, are not lost. We cannot
5071f97ec6d74f Davide Libenzi  2009-03-31  616  	 * have the poll callback to queue directly on ep->rdllist,
5071f97ec6d74f Davide Libenzi  2009-03-31  617  	 * because we want the "sproc" callback to be able to do it
5071f97ec6d74f Davide Libenzi  2009-03-31  618  	 * in a lockless way.
5071f97ec6d74f Davide Libenzi  2009-03-31  619  	 */
57804b1cc46167 Al Viro         2020-08-31 @620  	lockdep_assert_irqs_enabled();
a218cc4914209a Roman Penyaev   2019-03-07  621  	write_lock_irq(&ep->lock);
db502f8a3b0bb5 Al Viro         2020-08-31  622  	list_splice_init(&ep->rdllist, txlist);
c5a282e9635e9c Davidlohr Bueso 2019-01-03  623  	WRITE_ONCE(ep->ovflist, NULL);
a218cc4914209a Roman Penyaev   2019-03-07  624  	write_unlock_irq(&ep->lock);
db502f8a3b0bb5 Al Viro         2020-08-31  625  }
5071f97ec6d74f Davide Libenzi  2009-03-31  626  

:::::: The code at line 620 was first introduced by commit
:::::: 57804b1cc4616780c72a2d0930d1bd0d5bd3ed4c lift locking/unlocking ep->mtx out of ep_{start,done}_scan()

:::::: TO: Al Viro <viro@...iv.linux.org.uk>
:::::: CC: Al Viro <viro@...iv.linux.org.uk>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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