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Date:   Sat, 22 Oct 2022 03:00:39 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jiri Kosina <jikos@...nel.org>,
        Christoph Lameter <cl@...ux-foundation.org>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Hyeonggon Yoo <42.hyeyoo@...il.com>
Cc:     kbuild-all@...ts.01.org,
        Linux Memory Management List <linux-mm@...ck.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/slab: Annotate kmem_cache_node->list_lock as raw

Hi Jiri,

I love your patch! Yet something to improve:

[auto build test ERROR on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/Jiri-Kosina/mm-slab-Annotate-kmem_cache_node-list_lock-as-raw/20221021-225037
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/nycvar.YFH.7.76.2210211643330.29912%40cbobk.fhfr.pm
patch subject: [PATCH] mm/slab: Annotate kmem_cache_node->list_lock as raw
config: x86_64-rhel-8.3-func
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/709b8ca6934319e9e8e0519baa3ac2bb4f634451
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Jiri-Kosina/mm-slab-Annotate-kmem_cache_node-list_lock-as-raw/20221021-225037
        git checkout 709b8ca6934319e9e8e0519baa3ac2bb4f634451
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

     243 |                 flags = _raw_spin_lock_irqsave(lock);   \
         |                                                ^~~~
   mm/slub.c:2946:9: note: in expansion of macro 'spin_lock_irqsave'
    2946 |         spin_lock_irqsave(&n->list_lock, flags);
         |         ^~~~~~~~~~~~~~~~~
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:323:67: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     323 | static __always_inline raw_spinlock_t *spinlock_check(spinlock_t *lock)
         |                                                       ~~~~~~~~~~~~^~~~
   mm/slub.c:2949:32: error: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type [-Werror=incompatible-pointer-types]
    2949 |         spin_unlock_irqrestore(&n->list_lock, flags);
         |                                ^~~~~~~~~~~~~
         |                                |
         |                                raw_spinlock_t * {aka struct raw_spinlock *}
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:403:64: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     403 | static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
         |                                                    ~~~~~~~~~~~~^~~~
   mm/slub.c: In function '__slab_free':
   mm/slub.c:3483:48: error: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type [-Werror=incompatible-pointer-types]
    3483 |                         spin_unlock_irqrestore(&n->list_lock, flags);
         |                                                ^~~~~~~~~~~~~
         |                                                |
         |                                                raw_spinlock_t * {aka struct raw_spinlock *}
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:403:64: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     403 | static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
         |                                                    ~~~~~~~~~~~~^~~~
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   mm/slub.c:3515:51: error: passing argument 1 of 'spinlock_check' from incompatible pointer type [-Werror=incompatible-pointer-types]
    3515 |                                 spin_lock_irqsave(&n->list_lock, flags);
         |                                                   ^~~~~~~~~~~~~
         |                                                   |
         |                                                   raw_spinlock_t * {aka struct raw_spinlock *}
   include/linux/spinlock.h:243:48: note: in definition of macro 'raw_spin_lock_irqsave'
     243 |                 flags = _raw_spin_lock_irqsave(lock);   \
         |                                                ^~~~
   mm/slub.c:3515:33: note: in expansion of macro 'spin_lock_irqsave'
    3515 |                                 spin_lock_irqsave(&n->list_lock, flags);
         |                                 ^~~~~~~~~~~~~~~~~
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:323:67: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     323 | static __always_inline raw_spinlock_t *spinlock_check(spinlock_t *lock)
         |                                                       ~~~~~~~~~~~~^~~~
   mm/slub.c:3557:32: error: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type [-Werror=incompatible-pointer-types]
    3557 |         spin_unlock_irqrestore(&n->list_lock, flags);
         |                                ^~~~~~~~~~~~~
         |                                |
         |                                raw_spinlock_t * {aka struct raw_spinlock *}
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:403:64: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     403 | static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
         |                                                    ~~~~~~~~~~~~^~~~
   mm/slub.c:3572:32: error: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type [-Werror=incompatible-pointer-types]
    3572 |         spin_unlock_irqrestore(&n->list_lock, flags);
         |                                ^~~~~~~~~~~~~
         |                                |
         |                                raw_spinlock_t * {aka struct raw_spinlock *}
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:403:64: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     403 | static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
         |                                                    ~~~~~~~~~~~~^~~~
   mm/slub.c: In function 'init_kmem_cache_node':
   mm/slub.c:4008:24: error: passing argument 1 of 'spinlock_check' from incompatible pointer type [-Werror=incompatible-pointer-types]
    4008 |         spin_lock_init(&n->list_lock);
         |                        ^~~~~~~~~~~~~
         |                        |
         |                        raw_spinlock_t * {aka struct raw_spinlock *}
   include/linux/spinlock.h:342:24: note: in definition of macro 'spin_lock_init'
     342 |         spinlock_check(_lock);                  \
         |                        ^~~~~
   include/linux/spinlock.h:323:67: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     323 | static __always_inline raw_spinlock_t *spinlock_check(spinlock_t *lock)
         |                                                       ~~~~~~~~~~~~^~~~
   In file included from include/linux/spinlock.h:88,
                    from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
>> include/linux/spinlock_types.h:41:9: error: incompatible types when assigning to type 'raw_spinlock_t' {aka 'struct raw_spinlock'} from type 'spinlock_t' {aka 'struct spinlock'}
      41 |         (spinlock_t) __SPIN_LOCK_INITIALIZER(lockname)
         |         ^
   include/linux/spinlock.h:343:20: note: in expansion of macro '__SPIN_LOCK_UNLOCKED'
     343 |         *(_lock) = __SPIN_LOCK_UNLOCKED(_lock); \
         |                    ^~~~~~~~~~~~~~~~~~~~
   mm/slub.c:4008:9: note: in expansion of macro 'spin_lock_init'
    4008 |         spin_lock_init(&n->list_lock);
         |         ^~~~~~~~~~~~~~
   mm/slub.c: In function 'free_partial':
   mm/slub.c:4393:23: error: passing argument 1 of 'spin_lock_irq' from incompatible pointer type [-Werror=incompatible-pointer-types]
    4393 |         spin_lock_irq(&n->list_lock);
         |                       ^~~~~~~~~~~~~
         |                       |
         |                       raw_spinlock_t * {aka struct raw_spinlock *}
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:373:55: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     373 | static __always_inline void spin_lock_irq(spinlock_t *lock)
         |                                           ~~~~~~~~~~~~^~~~
   mm/slub.c:4403:25: error: passing argument 1 of 'spin_unlock_irq' from incompatible pointer type [-Werror=incompatible-pointer-types]
    4403 |         spin_unlock_irq(&n->list_lock);
         |                         ^~~~~~~~~~~~~
         |                         |
         |                         raw_spinlock_t * {aka struct raw_spinlock *}
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:398:57: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     398 | static __always_inline void spin_unlock_irq(spinlock_t *lock)
         |                                             ~~~~~~~~~~~~^~~~
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   mm/slub.c: In function '__kmem_cache_do_shrink':
   mm/slub.c:4607:35: error: passing argument 1 of 'spinlock_check' from incompatible pointer type [-Werror=incompatible-pointer-types]
    4607 |                 spin_lock_irqsave(&n->list_lock, flags);
         |                                   ^~~~~~~~~~~~~
         |                                   |
         |                                   raw_spinlock_t * {aka struct raw_spinlock *}
   include/linux/spinlock.h:243:48: note: in definition of macro 'raw_spin_lock_irqsave'
     243 |                 flags = _raw_spin_lock_irqsave(lock);   \
         |                                                ^~~~
   mm/slub.c:4607:17: note: in expansion of macro 'spin_lock_irqsave'
    4607 |                 spin_lock_irqsave(&n->list_lock, flags);
         |                 ^~~~~~~~~~~~~~~~~
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:323:67: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     323 | static __always_inline raw_spinlock_t *spinlock_check(spinlock_t *lock)
         |                                                       ~~~~~~~~~~~~^~~~
   mm/slub.c:4639:40: error: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type [-Werror=incompatible-pointer-types]
    4639 |                 spin_unlock_irqrestore(&n->list_lock, flags);
         |                                        ^~~~~~~~~~~~~
         |                                        |
         |                                        raw_spinlock_t * {aka struct raw_spinlock *}
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:403:64: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     403 | static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
         |                                                    ~~~~~~~~~~~~^~~~
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   mm/slub.c: In function 'validate_slab_node':
   mm/slub.c:4962:27: error: passing argument 1 of 'spinlock_check' from incompatible pointer type [-Werror=incompatible-pointer-types]
    4962 |         spin_lock_irqsave(&n->list_lock, flags);
         |                           ^~~~~~~~~~~~~
         |                           |
         |                           raw_spinlock_t * {aka struct raw_spinlock *}
   include/linux/spinlock.h:243:48: note: in definition of macro 'raw_spin_lock_irqsave'
     243 |                 flags = _raw_spin_lock_irqsave(lock);   \
         |                                                ^~~~
   mm/slub.c:4962:9: note: in expansion of macro 'spin_lock_irqsave'
    4962 |         spin_lock_irqsave(&n->list_lock, flags);
         |         ^~~~~~~~~~~~~~~~~
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
   include/linux/spinlock.h:323:67: note: expected 'spinlock_t *' {aka 'struct spinlock *'} but argument is of type 'raw_spinlock_t *' {aka 'struct raw_spinlock *'}
     323 | static __always_inline raw_spinlock_t *spinlock_check(spinlock_t *lock)
         |                                                       ~~~~~~~~~~~~^~~~
   mm/slub.c:4988:32: error: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type [-Werror=incompatible-pointer-types]
    4988 |         spin_unlock_irqrestore(&n->list_lock, flags);
         |                                ^~~~~~~~~~~~~
         |                                |
         |                                raw_spinlock_t * {aka struct raw_spinlock *}
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:


vim +41 include/linux/spinlock_types.h

c2f21ce2e31286 Thomas Gleixner 2009-12-02  30  
de8f5e4f2dc1f0 Peter Zijlstra  2020-03-21  31  #define ___SPIN_LOCK_INITIALIZER(lockname)	\
de8f5e4f2dc1f0 Peter Zijlstra  2020-03-21  32  	{					\
de8f5e4f2dc1f0 Peter Zijlstra  2020-03-21  33  	.raw_lock = __ARCH_SPIN_LOCK_UNLOCKED,	\
de8f5e4f2dc1f0 Peter Zijlstra  2020-03-21  34  	SPIN_DEBUG_INIT(lockname)		\
de8f5e4f2dc1f0 Peter Zijlstra  2020-03-21  35  	SPIN_DEP_MAP_INIT(lockname) }
de8f5e4f2dc1f0 Peter Zijlstra  2020-03-21  36  
c2f21ce2e31286 Thomas Gleixner 2009-12-02  37  #define __SPIN_LOCK_INITIALIZER(lockname) \
de8f5e4f2dc1f0 Peter Zijlstra  2020-03-21  38  	{ { .rlock = ___SPIN_LOCK_INITIALIZER(lockname) } }
c2f21ce2e31286 Thomas Gleixner 2009-12-02  39  
c2f21ce2e31286 Thomas Gleixner 2009-12-02  40  #define __SPIN_LOCK_UNLOCKED(lockname) \
c2f21ce2e31286 Thomas Gleixner 2009-12-02 @41  	(spinlock_t) __SPIN_LOCK_INITIALIZER(lockname)
fb1c8f93d869b3 Ingo Molnar     2005-09-10  42  

-- 
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