linux-kernel - [paulmck-rcu:mmap_sem.2023.10.18a 18/31] kernel/locking/qspinlock.c:741:23: warning: no previous declaration for '__pv_spinlock

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Date:   Fri, 20 Oct 2023 08:37:08 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [paulmck-rcu:mmap_sem.2023.10.18a 18/31]
 kernel/locking/qspinlock.c:741:23: warning: no previous declaration for
 '__pv_spinlock_dump'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git mmap_sem.2023.10.18a
head:   4015256f2bc734d4175381762282784597f41cfa
commit: 851f9c70733ed644c8a03d8f93f9876942181bee [18/31] EXP qspinlock: Add spinlock_dump() to dump lock state
config: x86_64-randconfig-016-20231020 (https://download.01.org/0day-ci/archive/20231020/202310200814.xePmkBus-lkp@intel.com/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231020/202310200814.xePmkBus-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/202310200814.xePmkBus-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> kernel/locking/qspinlock.c:741:23: warning: no previous declaration for '__pv_spinlock_dump' [-Wmissing-declarations]
    #define spinlock_dump __pv_spinlock_dump
                          ^
   kernel/locking/qspinlock.c:691:6: note: in expansion of macro 'spinlock_dump'
    void spinlock_dump(spinlock_t *sp, bool full)
         ^~~~~~~~~~~~~


vim +/__pv_spinlock_dump +741 kernel/locking/qspinlock.c

   737	
   738	#undef  queued_spin_lock_slowpath
   739	#define queued_spin_lock_slowpath	__pv_queued_spin_lock_slowpath
   740	#define queued_spin_lock_slowpath_diags	__pv_queued_spin_lock_slowpath_diags
 > 741	#define spinlock_dump	__pv_spinlock_dump
   742	#define tail_to_cpu	__pv_tail_to_cpu
   743	#define tail_to_idx	__pv_tail_to_idx
   744	#define next_to_prev	__pv_next_to_prev
   745	#define next_to_cpu_idx	__pv_next_to_cpu_idx
   746	

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