* [zen:6.9/prjc 461/472] kernel/sched/alt_core.c:4207:14: error: call to undeclared function '__best_mask_cpu'; ISO C99 and later do not support implicit function declarations
@ 2024-05-17 10:34 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-05-17 10:34 UTC (permalink / raw)
To: steven; +Cc: oe-kbuild-all
tree: https://github.com/zen-kernel/zen-kernel 6.9/prjc
head: 90e00625dbe63d991978337198b3c43a1df585c9
commit: f90f6c0ad3cb7786aa8308e4669ea037dabf7476 [461/472] sched/alt: Generic active_balance_cpu_stop()
config: um-allnoconfig (https://download.01.org/0day-ci/archive/20240517/202405171813.gP8HoPQJ-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240517/202405171813.gP8HoPQJ-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/202405171813.gP8HoPQJ-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from kernel/sched/alt_core.c:19:
In file included from include/linux/sched/isolation.h:7:
In file included from include/linux/tick.h:8:
In file included from include/linux/clockchips.h:14:
In file included from include/linux/clocksource.h:22:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
547 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from kernel/sched/alt_core.c:19:
In file included from include/linux/sched/isolation.h:7:
In file included from include/linux/tick.h:8:
In file included from include/linux/clockchips.h:14:
In file included from include/linux/clocksource.h:22:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from kernel/sched/alt_core.c:19:
In file included from include/linux/sched/isolation.h:7:
In file included from include/linux/tick.h:8:
In file included from include/linux/clockchips.h:14:
In file included from include/linux/clocksource.h:22:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
584 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
692 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
700 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
708 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
717 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
726 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
735 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
In file included from kernel/sched/alt_core.c:48:
kernel/sched/smp.h:14:20: error: redefinition of 'flush_smp_call_function_queue'
14 | static inline void flush_smp_call_function_queue(void) { }
| ^
kernel/sched/alt_sched.h:357:20: note: previous definition is here
357 | static inline void flush_smp_call_function_queue(void) { }
| ^
>> kernel/sched/alt_core.c:4207:14: error: call to undeclared function '__best_mask_cpu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
4207 | int dcpu = __best_mask_cpu(&tmp, per_cpu(sched_cpu_llc_mask, cpu_of(rq)));
| ^
kernel/sched/alt_core.c:4207:14: note: did you mean '__set_task_cpu'?
kernel/sched/alt_core.c:1514:20: note: '__set_task_cpu' declared here
1514 | static inline void __set_task_cpu(struct task_struct *p, unsigned int cpu)
| ^
>> kernel/sched/alt_core.c:4207:44: error: use of undeclared identifier 'sched_cpu_llc_mask'; did you mean 'sched_idle_mask'?
4207 | int dcpu = __best_mask_cpu(&tmp, per_cpu(sched_cpu_llc_mask, cpu_of(rq)));
| ^~~~~~~~~~~~~~~~~~
| sched_idle_mask
include/linux/percpu-defs.h:269:43: note: expanded from macro 'per_cpu'
269 | #define per_cpu(var, cpu) (*per_cpu_ptr(&(var), cpu))
| ^
include/linux/percpu-defs.h:263:65: note: expanded from macro 'per_cpu_ptr'
263 | #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); })
| ^
include/linux/percpu-defs.h:259:20: note: expanded from macro 'VERIFY_PERCPU_PTR'
259 | __verify_pcpu_ptr(__p); \
| ^
include/linux/percpu-defs.h:219:47: note: expanded from macro '__verify_pcpu_ptr'
219 | const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \
| ^
kernel/sched/alt_core.c:155:25: note: 'sched_idle_mask' declared here
155 | static cpumask_t *const sched_idle_mask = &sched_preempt_mask[SCHED_QUEUE_BITS - 1];
| ^
>> kernel/sched/alt_core.c:4207:44: error: use of undeclared identifier 'sched_cpu_llc_mask'; did you mean 'sched_idle_mask'?
4207 | int dcpu = __best_mask_cpu(&tmp, per_cpu(sched_cpu_llc_mask, cpu_of(rq)));
| ^~~~~~~~~~~~~~~~~~
| sched_idle_mask
include/linux/percpu-defs.h:269:43: note: expanded from macro 'per_cpu'
269 | #define per_cpu(var, cpu) (*per_cpu_ptr(&(var), cpu))
| ^
include/linux/percpu-defs.h:263:65: note: expanded from macro 'per_cpu_ptr'
263 | #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); })
| ^
include/linux/percpu-defs.h:260:12: note: expanded from macro 'VERIFY_PERCPU_PTR'
260 | (typeof(*(__p)) __kernel __force *)(__p); \
| ^
kernel/sched/alt_core.c:155:25: note: 'sched_idle_mask' declared here
155 | static cpumask_t *const sched_idle_mask = &sched_preempt_mask[SCHED_QUEUE_BITS - 1];
| ^
>> kernel/sched/alt_core.c:4207:44: error: use of undeclared identifier 'sched_cpu_llc_mask'; did you mean 'sched_idle_mask'?
4207 | int dcpu = __best_mask_cpu(&tmp, per_cpu(sched_cpu_llc_mask, cpu_of(rq)));
| ^~~~~~~~~~~~~~~~~~
| sched_idle_mask
include/linux/percpu-defs.h:269:43: note: expanded from macro 'per_cpu'
269 | #define per_cpu(var, cpu) (*per_cpu_ptr(&(var), cpu))
| ^
include/linux/percpu-defs.h:263:65: note: expanded from macro 'per_cpu_ptr'
263 | #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); })
| ^
include/linux/percpu-defs.h:260:38: note: expanded from macro 'VERIFY_PERCPU_PTR'
260 | (typeof(*(__p)) __kernel __force *)(__p); \
| ^
kernel/sched/alt_core.c:155:25: note: 'sched_idle_mask' declared here
155 | static cpumask_t *const sched_idle_mask = &sched_preempt_mask[SCHED_QUEUE_BITS - 1];
| ^
>> kernel/sched/alt_core.c:4208:8: error: call to undeclared function 'move_queued_task'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
4208 | rq = move_queued_task(rq, p, dcpu);
| ^
>> kernel/sched/alt_core.c:4208:6: error: incompatible integer to pointer conversion assigning to 'struct rq *' from 'int' [-Wint-conversion]
4208 | rq = move_queued_task(rq, p, dcpu);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/sched/alt_core.c:4245:19: error: no member named 'active_balance_work' in 'struct rq'
4245 | arg, &rq->active_balance_work);
| ~~ ^
kernel/sched/alt_core.c:4721:2: error: call to undeclared function 'hrtick_start'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
4721 | hrtick_start(rq, next->time_slice);
| ^
kernel/sched/alt_core.c:4721:2: note: did you mean 'hrtimer_start'?
include/linux/hrtimer.h:272:20: note: 'hrtimer_start' declared here
272 | static inline void hrtimer_start(struct hrtimer *timer, ktime_t tim,
| ^
kernel/sched/alt_core.c:7683:47: error: use of undeclared identifier 'sched_sg_idle_mask'; did you mean 'sched_idle_mask'?
7683 | struct balance_arg balance_arg = {.cpumask = sched_sg_idle_mask, .active = 0};
| ^~~~~~~~~~~~~~~~~~
| sched_idle_mask
kernel/sched/alt_core.c:155:25: note: 'sched_idle_mask' declared here
155 | static cpumask_t *const sched_idle_mask = &sched_preempt_mask[SCHED_QUEUE_BITS - 1];
| ^
12 warnings and 10 errors generated.
vim +/__best_mask_cpu +4207 kernel/sched/alt_core.c
4188
4189 static int active_balance_cpu_stop(void *data)
4190 {
4191 struct balance_arg *arg = data;
4192 struct task_struct *p = arg->task;
4193 struct rq *rq = this_rq();
4194 unsigned long flags;
4195 cpumask_t tmp;
4196
4197 local_irq_save(flags);
4198
4199 raw_spin_lock(&p->pi_lock);
4200 raw_spin_lock(&rq->lock);
4201
4202 arg->active = 0;
4203
4204 if (task_on_rq_queued(p) && task_rq(p) == rq &&
4205 cpumask_and(&tmp, p->cpus_ptr, arg->cpumask) &&
4206 !is_migration_disabled(p)) {
> 4207 int dcpu = __best_mask_cpu(&tmp, per_cpu(sched_cpu_llc_mask, cpu_of(rq)));
> 4208 rq = move_queued_task(rq, p, dcpu);
4209 }
4210
4211 raw_spin_unlock(&rq->lock);
4212 raw_spin_unlock_irqrestore(&p->pi_lock, flags);
4213
4214 return 0;
4215 }
4216
4217 /* trigger_active_balance - for @cpu/@rq */
4218 static inline int
4219 trigger_active_balance(struct rq *src_rq, struct rq *rq, struct balance_arg *arg)
4220 {
4221 unsigned long flags;
4222 struct task_struct *p;
4223 int res;
4224
4225 if (!raw_spin_trylock_irqsave(&rq->lock, flags))
4226 return 0;
4227
4228 res = (1 == rq->nr_running) && \
4229 !is_migration_disabled((p = sched_rq_first_task(rq))) && \
4230 cpumask_intersects(p->cpus_ptr, arg->cpumask) && \
4231 !arg->active;
4232 if (res) {
4233 arg->task = p;
4234
4235 arg->active = 1;
4236 }
4237
4238 raw_spin_unlock_irqrestore(&rq->lock, flags);
4239
4240 if (res) {
4241 preempt_disable();
4242 raw_spin_unlock(&src_rq->lock);
4243
4244 stop_one_cpu_nowait(cpu_of(rq), active_balance_cpu_stop,
> 4245 arg, &rq->active_balance_work);
4246
4247 preempt_enable();
4248 raw_spin_lock(&src_rq->lock);
4249 }
4250
4251 return res;
4252 }
4253
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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