Building the Linux kernel with Clang and LLVM
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From: kernel test robot <lkp@intel.com>
To: Kumar Kartikeya Dwivedi <memxor@gmail.com>,
	bpf@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	Peter Zijlstra <peterz@infradead.org>,
	Waiman Long <llong@redhat.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Andrii Nakryiko <andrii@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Martin KaFai Lau <martin.lau@kernel.org>,
	Eduard Zingerman <eddyz87@gmail.com>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	Tejun Heo <tj@kernel.org>, Barret Rhoden <brho@google.com>,
	Josh Don <joshdon@google.com>, Dohyun Kim <dohyunkim@google.com>,
	kernel-team@meta.com
Subject: Re: [PATCH bpf-next v1 20/22] bpf: Introduce rqspinlock kfuncs
Date: Wed, 8 Jan 2025 18:44:30 +0800	[thread overview]
Message-ID: <202501081854.xzCcM6nm-lkp@intel.com> (raw)
In-Reply-To: <20250107140004.2732830-21-memxor@gmail.com>

Hi Kumar,

kernel test robot noticed the following build errors:

[auto build test ERROR on f44275e7155dc310d36516fc25be503da099781c]

url:    https://github.com/intel-lab-lkp/linux/commits/Kumar-Kartikeya-Dwivedi/locking-Move-MCS-struct-definition-to-public-header/20250107-220615
base:   f44275e7155dc310d36516fc25be503da099781c
patch link:    https://lore.kernel.org/r/20250107140004.2732830-21-memxor%40gmail.com
patch subject: [PATCH bpf-next v1 20/22] bpf: Introduce rqspinlock kfuncs
config: um-allnoconfig (https://download.01.org/0day-ci/archive/20250108/202501081854.xzCcM6nm-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250108/202501081854.xzCcM6nm-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/202501081854.xzCcM6nm-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   In file included from fs/kernfs/mount.c:22:
   In file included from fs/kernfs/kernfs-internal.h:20:
   In file included from include/linux/fs_context.h:14:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:7:
>> include/asm-generic/qspinlock_types.h:44:3: error: typedef redefinition with different types ('struct qspinlock' vs 'struct arch_spinlock_t')
      44 | } arch_spinlock_t;
         |   ^
   include/linux/spinlock_types_up.h:25:20: note: previous definition is here
      25 | typedef struct { } arch_spinlock_t;
         |                    ^
   In file included from fs/kernfs/mount.c:22:
   In file included from fs/kernfs/kernfs-internal.h:20:
   In file included from include/linux/fs_context.h:14:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:7:
>> include/asm-generic/qspinlock_types.h:49:9: warning: '__ARCH_SPIN_LOCK_UNLOCKED' macro redefined [-Wmacro-redefined]
      49 | #define __ARCH_SPIN_LOCK_UNLOCKED       { { .val = ATOMIC_INIT(0) } }
         |         ^
   include/linux/spinlock_types_up.h:27:9: note: previous definition is here
      27 | #define __ARCH_SPIN_LOCK_UNLOCKED { }
         |         ^
   In file included from fs/kernfs/mount.c:22:
   In file included from fs/kernfs/kernfs-internal.h:20:
   In file included from include/linux/fs_context.h:14:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:144:9: warning: 'arch_spin_is_locked' macro redefined [-Wmacro-redefined]
     144 | #define arch_spin_is_locked(l)          queued_spin_is_locked(l)
         |         ^
   include/linux/spinlock_up.h:62:9: note: previous definition is here
      62 | #define arch_spin_is_locked(lock)       ((void)(lock), 0)
         |         ^
   In file included from fs/kernfs/mount.c:22:
   In file included from fs/kernfs/kernfs-internal.h:20:
   In file included from include/linux/fs_context.h:14:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:145:9: warning: 'arch_spin_is_contended' macro redefined [-Wmacro-redefined]
     145 | #define arch_spin_is_contended(l)       queued_spin_is_contended(l)
         |         ^
   include/linux/spinlock_up.h:69:9: note: previous definition is here
      69 | #define arch_spin_is_contended(lock)    (((void)(lock), 0))
         |         ^
   In file included from fs/kernfs/mount.c:22:
   In file included from fs/kernfs/kernfs-internal.h:20:
   In file included from include/linux/fs_context.h:14:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:147:9: warning: 'arch_spin_lock' macro redefined [-Wmacro-redefined]
     147 | #define arch_spin_lock(l)               queued_spin_lock(l)
         |         ^
   include/linux/spinlock_up.h:64:10: note: previous definition is here
      64 | # define arch_spin_lock(lock)           do { barrier(); (void)(lock); } while (0)
         |          ^
   In file included from fs/kernfs/mount.c:22:
   In file included from fs/kernfs/kernfs-internal.h:20:
   In file included from include/linux/fs_context.h:14:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:148:9: warning: 'arch_spin_trylock' macro redefined [-Wmacro-redefined]
     148 | #define arch_spin_trylock(l)            queued_spin_trylock(l)
         |         ^
   include/linux/spinlock_up.h:66:10: note: previous definition is here
      66 | # define arch_spin_trylock(lock)        ({ barrier(); (void)(lock); 1; })
         |          ^
   In file included from fs/kernfs/mount.c:22:
   In file included from fs/kernfs/kernfs-internal.h:20:
   In file included from include/linux/fs_context.h:14:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:149:9: warning: 'arch_spin_unlock' macro redefined [-Wmacro-redefined]
     149 | #define arch_spin_unlock(l)             queued_spin_unlock(l)
         |         ^
   include/linux/spinlock_up.h:65:10: note: previous definition is here
      65 | # define arch_spin_unlock(lock) do { barrier(); (void)(lock); } while (0)
         |          ^
   6 warnings and 1 error generated.
--
   In file included from fs/kernfs/inode.c:16:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:7:
>> include/asm-generic/qspinlock_types.h:44:3: error: typedef redefinition with different types ('struct qspinlock' vs 'struct arch_spinlock_t')
      44 | } arch_spinlock_t;
         |   ^
   include/linux/spinlock_types_up.h:25:20: note: previous definition is here
      25 | typedef struct { } arch_spinlock_t;
         |                    ^
   In file included from fs/kernfs/inode.c:16:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:7:
>> include/asm-generic/qspinlock_types.h:49:9: warning: '__ARCH_SPIN_LOCK_UNLOCKED' macro redefined [-Wmacro-redefined]
      49 | #define __ARCH_SPIN_LOCK_UNLOCKED       { { .val = ATOMIC_INIT(0) } }
         |         ^
   include/linux/spinlock_types_up.h:27:9: note: previous definition is here
      27 | #define __ARCH_SPIN_LOCK_UNLOCKED { }
         |         ^
   In file included from fs/kernfs/inode.c:16:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:144:9: warning: 'arch_spin_is_locked' macro redefined [-Wmacro-redefined]
     144 | #define arch_spin_is_locked(l)          queued_spin_is_locked(l)
         |         ^
   include/linux/spinlock_up.h:62:9: note: previous definition is here
      62 | #define arch_spin_is_locked(lock)       ((void)(lock), 0)
         |         ^
   In file included from fs/kernfs/inode.c:16:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:145:9: warning: 'arch_spin_is_contended' macro redefined [-Wmacro-redefined]
     145 | #define arch_spin_is_contended(l)       queued_spin_is_contended(l)
         |         ^
   include/linux/spinlock_up.h:69:9: note: previous definition is here
      69 | #define arch_spin_is_contended(lock)    (((void)(lock), 0))
         |         ^
   In file included from fs/kernfs/inode.c:16:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:147:9: warning: 'arch_spin_lock' macro redefined [-Wmacro-redefined]
     147 | #define arch_spin_lock(l)               queued_spin_lock(l)
         |         ^
   include/linux/spinlock_up.h:64:10: note: previous definition is here
      64 | # define arch_spin_lock(lock)           do { barrier(); (void)(lock); } while (0)
         |          ^
   In file included from fs/kernfs/inode.c:16:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:148:9: warning: 'arch_spin_trylock' macro redefined [-Wmacro-redefined]
     148 | #define arch_spin_trylock(l)            queued_spin_trylock(l)
         |         ^
   include/linux/spinlock_up.h:66:10: note: previous definition is here
      66 | # define arch_spin_trylock(lock)        ({ barrier(); (void)(lock); 1; })
         |          ^
   In file included from fs/kernfs/inode.c:16:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:149:9: warning: 'arch_spin_unlock' macro redefined [-Wmacro-redefined]
     149 | #define arch_spin_unlock(l)             queued_spin_unlock(l)
         |         ^
   include/linux/spinlock_up.h:65:10: note: previous definition is here
      65 | # define arch_spin_unlock(lock) do { barrier(); (void)(lock); } while (0)
         |          ^
   fs/kernfs/inode.c:29:9: warning: excess elements in struct initializer [-Wexcess-initializers]
      29 |         static DEFINE_MUTEX(iattr_mutex);
         |                ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mutex.h:87:27: note: expanded from macro 'DEFINE_MUTEX'
      87 |         struct mutex mutexname = __MUTEX_INITIALIZER(mutexname)
         |                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mutex.h:81:18: note: expanded from macro '__MUTEX_INITIALIZER'
      81 |                 , .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(lockname.wait_lock) \
         |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/spinlock_types_raw.h:69:19: note: expanded from macro '__RAW_SPIN_LOCK_UNLOCKED'
      69 |         (raw_spinlock_t) __RAW_SPIN_LOCK_INITIALIZER(lockname)
         |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/spinlock_types_raw.h:64:14: note: expanded from macro '__RAW_SPIN_LOCK_INITIALIZER'
      64 |         .raw_lock = __ARCH_SPIN_LOCK_UNLOCKED,  \
         |                     ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/qspinlock_types.h:49:37: note: expanded from macro '__ARCH_SPIN_LOCK_UNLOCKED'
      49 | #define __ARCH_SPIN_LOCK_UNLOCKED       { { .val = ATOMIC_INIT(0) } }
         |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~
   7 warnings and 1 error generated.
--
   In file included from fs/kernfs/dir.c:15:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:7:
>> include/asm-generic/qspinlock_types.h:44:3: error: typedef redefinition with different types ('struct qspinlock' vs 'struct arch_spinlock_t')
      44 | } arch_spinlock_t;
         |   ^
   include/linux/spinlock_types_up.h:25:20: note: previous definition is here
      25 | typedef struct { } arch_spinlock_t;
         |                    ^
   In file included from fs/kernfs/dir.c:15:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:7:
>> include/asm-generic/qspinlock_types.h:49:9: warning: '__ARCH_SPIN_LOCK_UNLOCKED' macro redefined [-Wmacro-redefined]
      49 | #define __ARCH_SPIN_LOCK_UNLOCKED       { { .val = ATOMIC_INIT(0) } }
         |         ^
   include/linux/spinlock_types_up.h:27:9: note: previous definition is here
      27 | #define __ARCH_SPIN_LOCK_UNLOCKED { }
         |         ^
   In file included from fs/kernfs/dir.c:15:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:144:9: warning: 'arch_spin_is_locked' macro redefined [-Wmacro-redefined]
     144 | #define arch_spin_is_locked(l)          queued_spin_is_locked(l)
         |         ^
   include/linux/spinlock_up.h:62:9: note: previous definition is here
      62 | #define arch_spin_is_locked(lock)       ((void)(lock), 0)
         |         ^
   In file included from fs/kernfs/dir.c:15:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:145:9: warning: 'arch_spin_is_contended' macro redefined [-Wmacro-redefined]
     145 | #define arch_spin_is_contended(l)       queued_spin_is_contended(l)
         |         ^
   include/linux/spinlock_up.h:69:9: note: previous definition is here
      69 | #define arch_spin_is_contended(lock)    (((void)(lock), 0))
         |         ^
   In file included from fs/kernfs/dir.c:15:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:147:9: warning: 'arch_spin_lock' macro redefined [-Wmacro-redefined]
     147 | #define arch_spin_lock(l)               queued_spin_lock(l)
         |         ^
   include/linux/spinlock_up.h:64:10: note: previous definition is here
      64 | # define arch_spin_lock(lock)           do { barrier(); (void)(lock); } while (0)
         |          ^
   In file included from fs/kernfs/dir.c:15:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:148:9: warning: 'arch_spin_trylock' macro redefined [-Wmacro-redefined]
     148 | #define arch_spin_trylock(l)            queued_spin_trylock(l)
         |         ^
   include/linux/spinlock_up.h:66:10: note: previous definition is here
      66 | # define arch_spin_trylock(lock)        ({ barrier(); (void)(lock); 1; })
         |          ^
   In file included from fs/kernfs/dir.c:15:
   In file included from include/linux/security.h:35:
   In file included from include/linux/bpf.h:33:
   In file included from arch/x86/include/asm/rqspinlock.h:18:
   In file included from include/asm-generic/rqspinlock.h:15:
   In file included from arch/x86/include/asm/qspinlock.h:114:
>> include/asm-generic/qspinlock.h:149:9: warning: 'arch_spin_unlock' macro redefined [-Wmacro-redefined]
     149 | #define arch_spin_unlock(l)             queued_spin_unlock(l)
         |         ^
   include/linux/spinlock_up.h:65:10: note: previous definition is here
      65 | # define arch_spin_unlock(lock) do { barrier(); (void)(lock); } while (0)
         |          ^
   fs/kernfs/dir.c:28:8: warning: excess elements in struct initializer [-Wexcess-initializers]
      28 | static DEFINE_SPINLOCK(kernfs_pr_cont_lock);
         |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/spinlock_types.h:43:43: note: expanded from macro 'DEFINE_SPINLOCK'
      43 | #define DEFINE_SPINLOCK(x)      spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
         |                                                ^~~~~~~~~~~~~~~~~~~~~~~
   include/linux/spinlock_types.h:41:15: note: expanded from macro '__SPIN_LOCK_UNLOCKED'
      41 |         (spinlock_t) __SPIN_LOCK_INITIALIZER(lockname)
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/spinlock_types.h:38:15: note: expanded from macro '__SPIN_LOCK_INITIALIZER'
      38 |         { { .rlock = ___SPIN_LOCK_INITIALIZER(lockname) } }
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/spinlock_types.h:33:14: note: expanded from macro '___SPIN_LOCK_INITIALIZER'
      33 |         .raw_lock = __ARCH_SPIN_LOCK_UNLOCKED,  \
         |                     ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/qspinlock_types.h:49:37: note: expanded from macro '__ARCH_SPIN_LOCK_UNLOCKED'
      49 | #define __ARCH_SPIN_LOCK_UNLOCKED       { { .val = ATOMIC_INIT(0) } }
         |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~
   fs/kernfs/dir.c:30:8: warning: excess elements in struct initializer [-Wexcess-initializers]
      30 | static DEFINE_SPINLOCK(kernfs_idr_lock);        /* root->ino_idr */
         |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/spinlock_types.h:43:43: note: expanded from macro 'DEFINE_SPINLOCK'
      43 | #define DEFINE_SPINLOCK(x)      spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
         |                                                ^~~~~~~~~~~~~~~~~~~~~~~
   include/linux/spinlock_types.h:41:15: note: expanded from macro '__SPIN_LOCK_UNLOCKED'
      41 |         (spinlock_t) __SPIN_LOCK_INITIALIZER(lockname)
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/spinlock_types.h:38:15: note: expanded from macro '__SPIN_LOCK_INITIALIZER'
      38 |         { { .rlock = ___SPIN_LOCK_INITIALIZER(lockname) } }
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/spinlock_types.h:33:14: note: expanded from macro '___SPIN_LOCK_INITIALIZER'
      33 |         .raw_lock = __ARCH_SPIN_LOCK_UNLOCKED,  \
         |                     ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/qspinlock_types.h:49:37: note: expanded from macro '__ARCH_SPIN_LOCK_UNLOCKED'
      49 | #define __ARCH_SPIN_LOCK_UNLOCKED       { { .val = ATOMIC_INIT(0) } }
         |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~
   8 warnings and 1 error generated.
..


vim +/arch_spin_is_locked +144 include/asm-generic/qspinlock.h

2aa79af6426319 Peter Zijlstra (Intel  2015-04-24  138) 
ab83647fadae2f Alexandre Ghiti        2024-11-03  139  #ifndef __no_arch_spinlock_redefine
a33fda35e3a765 Waiman Long            2015-04-24  140  /*
a33fda35e3a765 Waiman Long            2015-04-24  141   * Remapping spinlock architecture specific functions to the corresponding
a33fda35e3a765 Waiman Long            2015-04-24  142   * queued spinlock functions.
a33fda35e3a765 Waiman Long            2015-04-24  143   */
a33fda35e3a765 Waiman Long            2015-04-24 @144  #define arch_spin_is_locked(l)		queued_spin_is_locked(l)
a33fda35e3a765 Waiman Long            2015-04-24 @145  #define arch_spin_is_contended(l)	queued_spin_is_contended(l)
a33fda35e3a765 Waiman Long            2015-04-24  146  #define arch_spin_value_unlocked(l)	queued_spin_value_unlocked(l)
a33fda35e3a765 Waiman Long            2015-04-24 @147  #define arch_spin_lock(l)		queued_spin_lock(l)
a33fda35e3a765 Waiman Long            2015-04-24 @148  #define arch_spin_trylock(l)		queued_spin_trylock(l)
a33fda35e3a765 Waiman Long            2015-04-24 @149  #define arch_spin_unlock(l)		queued_spin_unlock(l)
ab83647fadae2f Alexandre Ghiti        2024-11-03  150  #endif
a33fda35e3a765 Waiman Long            2015-04-24  151  

-- 
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           reply	other threads:[~2025-01-08 10:45 UTC|newest]

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