[paulmck-rcu:dev.2023.08.22a 67/69] kernel/locking/qspinlock.c:691:29: error: redefinition of 'next_to_cpu_idx'
From: kernel test robot
Date: Fri Aug 25 2023 - 04:57:22 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2023.08.22a
head: 354957ec11dc80eac68c4b1e10c237d69adc1833
commit: 62532cfc5f2be5376f0eac431783c226c35e104f [67/69] EXP qspinlock: Dump full qnode structure
config: i386-buildonly-randconfig-001-20230825 (https://download.01.org/0day-ci/archive/20230825/202308251616.7HOmYRfg-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce: (https://download.01.org/0day-ci/archive/20230825/202308251616.7HOmYRfg-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308251616.7HOmYRfg-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
kernel/locking/qspinlock.c:730:102: warning: format specifies type 'unsigned long' but the argument has type 'unsigned int' [-Wformat]
__func__, _Q_TAIL_CPU_OFFSET, _Q_TAIL_IDX_MASK, _Q_TAIL_IDX_OFFSET, _Q_LOCKED_VAL, _Q_TAIL_OFFSET, sizeof(qval.tail));
^~~~~~~~~~~~~~~~~
include/linux/printk.h:478:35: note: expanded from macro 'pr_alert'
printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:455:60: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:427:19: note: expanded from macro 'printk_index_wrap'
_p_func(_fmt, ##__VA_ARGS__); \
~~~~ ^~~~~~~~~~~
In file included from kernel/locking/qspinlock.c:779:
kernel/locking/qspinlock_paravirt.h:298:7: warning: variable 'wait_early' set but not used [-Wunused-but-set-variable]
bool wait_early;
^
kernel/locking/qspinlock_paravirt.h:407:6: warning: variable 'waitcnt' set but not used [-Wunused-but-set-variable]
int waitcnt = 0;
^
kernel/locking/qspinlock_paravirt.h:493:1: warning: no previous prototype for function '__pv_queued_spin_unlock_slowpath' [-Wmissing-prototypes]
__pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
^
kernel/locking/qspinlock_paravirt.h:492:22: note: declare 'static' if the function is not intended to be used outside of this translation unit
__visible __lockfunc void
^
static
In file included from kernel/locking/qspinlock.c:780:
kernel/locking/qspinlock.c:660:19: error: redefinition of 'tail_to_cpu'
static __pure int tail_to_cpu(u32 tail)
^
kernel/locking/qspinlock.c:660:19: note: previous definition is here
static __pure int tail_to_cpu(u32 tail)
^
In file included from kernel/locking/qspinlock.c:780:
kernel/locking/qspinlock.c:665:19: error: redefinition of 'tail_to_idx'
static __pure int tail_to_idx(u32 tail)
^
kernel/locking/qspinlock.c:665:19: note: previous definition is here
static __pure int tail_to_idx(u32 tail)
^
In file included from kernel/locking/qspinlock.c:780:
kernel/locking/qspinlock.c:670:29: error: redefinition of 'next_to_prev'
static struct mcs_spinlock *next_to_prev(struct mcs_spinlock *msp, int *cpup, int *idxp)
^
kernel/locking/qspinlock.c:670:29: note: previous definition is here
static struct mcs_spinlock *next_to_prev(struct mcs_spinlock *msp, int *cpup, int *idxp)
^
In file included from kernel/locking/qspinlock.c:780:
>> kernel/locking/qspinlock.c:691:29: error: redefinition of 'next_to_cpu_idx'
static struct mcs_spinlock *next_to_cpu_idx(struct mcs_spinlock *msp, int *cpup, int *idxp)
^
kernel/locking/qspinlock.c:691:29: note: previous definition is here
static struct mcs_spinlock *next_to_cpu_idx(struct mcs_spinlock *msp, int *cpup, int *idxp)
^
In file included from kernel/locking/qspinlock.c:780:
kernel/locking/qspinlock.c:712:6: error: redefinition of 'spinlock_dump'
void spinlock_dump(spinlock_t *sp, bool full)
^
kernel/locking/qspinlock.c:712:6: note: previous definition is here
void spinlock_dump(spinlock_t *sp, bool full)
^
In file included from kernel/locking/qspinlock.c:780:
kernel/locking/qspinlock.c:730:102: warning: format specifies type 'unsigned long' but the argument has type 'unsigned int' [-Wformat]
__func__, _Q_TAIL_CPU_OFFSET, _Q_TAIL_IDX_MASK, _Q_TAIL_IDX_OFFSET, _Q_LOCKED_VAL, _Q_TAIL_OFFSET, sizeof(qval.tail));
^~~~~~~~~~~~~~~~~
include/linux/printk.h:478:35: note: expanded from macro 'pr_alert'
printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:455:60: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:427:19: note: expanded from macro 'printk_index_wrap'
_p_func(_fmt, ##__VA_ARGS__); \
~~~~ ^~~~~~~~~~~
5 warnings and 5 errors generated.
vim +/next_to_cpu_idx +691 kernel/locking/qspinlock.c
690
> 691 static struct mcs_spinlock *next_to_cpu_idx(struct mcs_spinlock *msp, int *cpup, int *idxp)
692 {
693 int cpu;
694 int idx;
695
696 for_each_possible_cpu(cpu) {
697 struct qnode *qnp = per_cpu_ptr(&qnodes[0], cpu);
698
699 for (idx = 0; idx < MAX_NODES; idx++) {
700 if (&qnp[idx].mcs == msp) {
701 *cpup = cpu;
702 *idxp = idx;
703 return &qnp[idx].mcs;
704 }
705 }
706 }
707 *cpup = -1;
708 *idxp = -1;
709 return NULL;
710 }
711
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