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Date: Fri, 28 Jan 2022 12:19:05 +0800
From: kernel test robot <lkp@...el.com>
To: Nick Desaulniers <ndesaulniers@...gle.com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org
Subject: [clangbuiltlinux:reachability 2/6] include/linux/rcupdate.h:1001:2:
error: expected ')'
tree: https://github.com/ClangBuiltLinux/linux reachability
head: 1ebaf6b87ee4d103be3d3f6e00fa4fcb18e7865e
commit: 473c4f04fa49864f6955062435d8bab02ff87862 [2/6] x86: bug.h: merge asm in __WARN_FLAGS
config: i386-randconfig-a011-20220124 (https://download.01.org/0day-ci/archive/20220128/202201281234.J3kmDPwj-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 33b45ee44b1f32ffdbc995e6fec806271b4b3ba4)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/ClangBuiltLinux/linux/commit/473c4f04fa49864f6955062435d8bab02ff87862
git remote add clangbuiltlinux https://github.com/ClangBuiltLinux/linux
git fetch --no-tags clangbuiltlinux reachability
git checkout 473c4f04fa49864f6955062435d8bab02ff87862
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 prepare
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
include/linux/lockdep.h:316:2: note: expanded from macro 'lockdep_assert_held'
lockdep_assert(lockdep_is_held(l) != LOCK_STATE_NOT_HELD)
^
include/linux/lockdep.h:310:7: note: expanded from macro 'lockdep_assert'
do { WARN_ON(debug_locks && !(cond)); } while (0)
^
include/asm-generic/bug.h:123:3: note: expanded from macro 'WARN_ON'
__WARN(); \
^
include/asm-generic/bug.h:96:19: note: expanded from macro '__WARN'
#define __WARN() __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
^
arch/x86/include/asm/bug.h:82:25: note: expanded from macro '__WARN_FLAGS'
_BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
include/linux/seqlock.h:278:1: error: expected ')'
SEQCOUNT_LOCKNAME(rwlock, rwlock_t, __SEQ_RT, s->lock, read, read_lock(s->lock))
^
include/linux/seqlock.h:247:13: note: expanded from macro 'SEQCOUNT_LOCKNAME'
__SEQ_LOCK(lockdep_assert_held(lockmember)); \
^
include/linux/lockdep.h:316:2: note: expanded from macro 'lockdep_assert_held'
lockdep_assert(lockdep_is_held(l) != LOCK_STATE_NOT_HELD)
^
include/linux/lockdep.h:310:7: note: expanded from macro 'lockdep_assert'
do { WARN_ON(debug_locks && !(cond)); } while (0)
^
include/asm-generic/bug.h:123:3: note: expanded from macro 'WARN_ON'
__WARN(); \
^
include/asm-generic/bug.h:96:19: note: expanded from macro '__WARN'
#define __WARN() __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
^
arch/x86/include/asm/bug.h:82:25: note: expanded from macro '__WARN_FLAGS'
_BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
include/linux/seqlock.h:279:1: error: expected ')'
SEQCOUNT_LOCKNAME(mutex, struct mutex, true, s->lock, mutex, mutex_lock(s->lock))
^
include/linux/seqlock.h:247:13: note: expanded from macro 'SEQCOUNT_LOCKNAME'
__SEQ_LOCK(lockdep_assert_held(lockmember)); \
^
include/linux/lockdep.h:316:2: note: expanded from macro 'lockdep_assert_held'
lockdep_assert(lockdep_is_held(l) != LOCK_STATE_NOT_HELD)
^
include/linux/lockdep.h:310:7: note: expanded from macro 'lockdep_assert'
do { WARN_ON(debug_locks && !(cond)); } while (0)
^
include/asm-generic/bug.h:123:3: note: expanded from macro 'WARN_ON'
__WARN(); \
^
include/asm-generic/bug.h:96:19: note: expanded from macro '__WARN'
#define __WARN() __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
^
arch/x86/include/asm/bug.h:82:25: note: expanded from macro '__WARN_FLAGS'
_BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
include/linux/seqlock.h:280:1: error: expected ')'
SEQCOUNT_LOCKNAME(ww_mutex, struct ww_mutex, true, &s->lock->base, ww_mutex, ww_mutex_lock(s->lock, NULL))
^
include/linux/seqlock.h:247:13: note: expanded from macro 'SEQCOUNT_LOCKNAME'
__SEQ_LOCK(lockdep_assert_held(lockmember)); \
^
include/linux/lockdep.h:316:2: note: expanded from macro 'lockdep_assert_held'
lockdep_assert(lockdep_is_held(l) != LOCK_STATE_NOT_HELD)
^
include/linux/lockdep.h:310:7: note: expanded from macro 'lockdep_assert'
do { WARN_ON(debug_locks && !(cond)); } while (0)
^
include/asm-generic/bug.h:123:3: note: expanded from macro 'WARN_ON'
__WARN(); \
^
include/asm-generic/bug.h:96:19: note: expanded from macro '__WARN'
#define __WARN() __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
^
arch/x86/include/asm/bug.h:82:25: note: expanded from macro '__WARN_FLAGS'
_BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:21:
In file included from include/linux/mm_types.h:10:
In file included from include/linux/rbtree.h:24:
>> include/linux/rcupdate.h:1001:2: error: expected ')'
WARN_ON_ONCE(func != (rcu_callback_t)~0L);
^
include/asm-generic/bug.h:106:3: note: expanded from macro 'WARN_ON_ONCE'
__WARN_FLAGS(BUGFLAG_ONCE | \
^
arch/x86/include/asm/bug.h:82:25: note: expanded from macro '__WARN_FLAGS'
_BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:23:
In file included from include/linux/local_lock.h:5:
>> include/linux/local_lock_internal.h:30:2: error: expected ')'
DEBUG_LOCKS_WARN_ON(l->owner);
^
include/linux/debug_locks.h:31:4: note: expanded from macro 'DEBUG_LOCKS_WARN_ON'
WARN(1, "DEBUG_LOCKS_WARN_ON(%s)", #c); \
^
include/asm-generic/bug.h:132:3: note: expanded from macro 'WARN'
__WARN_printf(TAINT_WARN, format); \
^
include/asm-generic/bug.h:100:3: note: expanded from macro '__WARN_printf'
__WARN_FLAGS(BUGFLAG_NO_CUT_HERE | BUGFLAG_TAINT(taint));\
^
arch/x86/include/asm/bug.h:82:25: note: expanded from macro '__WARN_FLAGS'
_BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:23:
In file included from include/linux/local_lock.h:5:
include/linux/local_lock_internal.h:36:2: error: expected ')'
DEBUG_LOCKS_WARN_ON(l->owner != current);
^
include/linux/debug_locks.h:31:4: note: expanded from macro 'DEBUG_LOCKS_WARN_ON'
WARN(1, "DEBUG_LOCKS_WARN_ON(%s)", #c); \
^
include/asm-generic/bug.h:132:3: note: expanded from macro 'WARN'
__WARN_printf(TAINT_WARN, format); \
^
include/asm-generic/bug.h:100:3: note: expanded from macro '__WARN_printf'
__WARN_FLAGS(BUGFLAG_NO_CUT_HERE | BUGFLAG_TAINT(taint));\
^
arch/x86/include/asm/bug.h:82:25: note: expanded from macro '__WARN_FLAGS'
_BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:942:
In file included from include/linux/memory_hotplug.h:7:
In file included from include/linux/notifier.h:16:
>> include/linux/srcu.h:188:2: error: expected ')'
WARN_ON_ONCE(idx & ~0x1);
^
include/asm-generic/bug.h:106:3: note: expanded from macro 'WARN_ON_ONCE'
__WARN_FLAGS(BUGFLAG_ONCE | \
^
arch/x86/include/asm/bug.h:82:25: note: expanded from macro '__WARN_FLAGS'
_BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:19:
>> include/linux/percpu-refcount.h:280:2: error: expected ')'
WARN_ON_ONCE(!rcu_read_lock_held());
^
include/asm-generic/bug.h:106:3: note: expanded from macro 'WARN_ON_ONCE'
__WARN_FLAGS(BUGFLAG_ONCE | \
^
arch/x86/include/asm/bug.h:82:25: note: expanded from macro '__WARN_FLAGS'
_BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
^
In file included from arch/x86/kernel/asm-offsets.c:10:
>> include/linux/sched.h:1816:2: error: expected ')'
WARN_ON(p->user_cpus_ptr);
^
include/asm-generic/bug.h:123:3: note: expanded from macro 'WARN_ON'
__WARN(); \
^
include/asm-generic/bug.h:96:19: note: expanded from macro '__WARN'
#define __WARN() __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
^
arch/x86/include/asm/bug.h:82:25: note: expanded from macro '__WARN_FLAGS'
_BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
make[2]: *** [scripts/Makefile.build:121: arch/x86/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1197: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:219: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +1001 include/linux/rcupdate.h
74de6960c99d8d Paul E. McKenney 2018-07-24 980
2aa5503026ceaa Paul E. McKenney 2018-11-20 981 /**
000601bb62330f Tobias Klauser 2020-07-09 982 * rcu_head_after_call_rcu() - Has this rcu_head been passed to call_rcu()?
74de6960c99d8d Paul E. McKenney 2018-07-24 983 * @rhp: The rcu_head structure to test.
2aa5503026ceaa Paul E. McKenney 2018-11-20 984 * @f: The function passed to call_rcu() along with @rhp.
74de6960c99d8d Paul E. McKenney 2018-07-24 985 *
74de6960c99d8d Paul E. McKenney 2018-07-24 986 * Returns @true if the @rhp has been passed to call_rcu() with @func,
74de6960c99d8d Paul E. McKenney 2018-07-24 987 * and @false otherwise. Emits a warning in any other case, including
74de6960c99d8d Paul E. McKenney 2018-07-24 988 * the case where @rhp has already been invoked after a grace period.
74de6960c99d8d Paul E. McKenney 2018-07-24 989 * Calls to this function must not race with callback invocation. One way
74de6960c99d8d Paul E. McKenney 2018-07-24 990 * to avoid such races is to enclose the call to rcu_head_after_call_rcu()
74de6960c99d8d Paul E. McKenney 2018-07-24 991 * in an RCU read-side critical section that includes a read-side fetch
74de6960c99d8d Paul E. McKenney 2018-07-24 992 * of the pointer to the structure containing @rhp.
74de6960c99d8d Paul E. McKenney 2018-07-24 993 */
74de6960c99d8d Paul E. McKenney 2018-07-24 994 static inline bool
74de6960c99d8d Paul E. McKenney 2018-07-24 995 rcu_head_after_call_rcu(struct rcu_head *rhp, rcu_callback_t f)
74de6960c99d8d Paul E. McKenney 2018-07-24 996 {
b699cce1604e82 Neeraj Upadhyay 2019-03-11 997 rcu_callback_t func = READ_ONCE(rhp->func);
b699cce1604e82 Neeraj Upadhyay 2019-03-11 998
b699cce1604e82 Neeraj Upadhyay 2019-03-11 999 if (func == f)
74de6960c99d8d Paul E. McKenney 2018-07-24 1000 return true;
b699cce1604e82 Neeraj Upadhyay 2019-03-11 @1001 WARN_ON_ONCE(func != (rcu_callback_t)~0L);
74de6960c99d8d Paul E. McKenney 2018-07-24 1002 return false;
74de6960c99d8d Paul E. McKenney 2018-07-24 1003 }
74de6960c99d8d Paul E. McKenney 2018-07-24 1004
:::::: The code at line 1001 was first introduced by commit
:::::: b699cce1604e828f19c39845252626eb78cdf38a rcu: Do a single rhp->func read in rcu_head_after_call_rcu()
:::::: TO: Neeraj Upadhyay <neeraju@...eaurora.org>
:::::: CC: Paul E. McKenney <paulmck@...ux.ibm.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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