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Message-ID: <202504251845.LAwzxYtY-lkp@intel.com>
Date: Fri, 25 Apr 2025 19:10:31 +0800
From: kernel test robot <lkp@...el.com>
To: Zhongqiu Han <quic_zhonhan@...cinc.com>, rafael@...nel.org,
pavel@...nel.org, len.brown@...el.com
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
quic_zhonhan@...cinc.com
Subject: Re: [PATCH] PM: QoS: Add support for CPU affinity mask-based CPUs
latency QoS
Hi Zhongqiu,
kernel test robot noticed the following build warnings:
[auto build test WARNING on rafael-pm/linux-next]
[also build test WARNING on rafael-pm/bleeding-edge amd-pstate/linux-next amd-pstate/bleeding-edge linus/master v6.15-rc3 next-20250424]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Zhongqiu-Han/PM-QoS-Add-support-for-CPU-affinity-mask-based-CPUs-latency-QoS/20250424-175559
base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link: https://lore.kernel.org/r/20250424095228.1112558-1-quic_zhonhan%40quicinc.com
patch subject: [PATCH] PM: QoS: Add support for CPU affinity mask-based CPUs latency QoS
config: s390-randconfig-001-20250425 (https://download.01.org/0day-ci/archive/20250425/202504251845.LAwzxYtY-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/20250425/202504251845.LAwzxYtY-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/202504251845.LAwzxYtY-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from kernel/cpu.c:41:
In file included from include/trace/events/power.h:8:
In file included from include/linux/cpufreq.h:19:
>> include/linux/pm_qos.h:335:5: warning: no previous prototype for function 'cpu_latency_qos_affinity_add' [-Wmissing-prototypes]
335 | int cpu_latency_qos_affinity_add(struct cpu_affinity_qos_req *pm_req,
| ^
include/linux/pm_qos.h:335:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
335 | int cpu_latency_qos_affinity_add(struct cpu_affinity_qos_req *pm_req,
| ^
| static
>> include/linux/pm_qos.h:340:5: warning: no previous prototype for function 'cpu_latency_qos_affinity_update' [-Wmissing-prototypes]
340 | int cpu_latency_qos_affinity_update(struct cpu_affinity_qos_req *pm_req,
| ^
include/linux/pm_qos.h:340:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
340 | int cpu_latency_qos_affinity_update(struct cpu_affinity_qos_req *pm_req,
| ^
| static
>> include/linux/pm_qos.h:345:5: warning: no previous prototype for function 'cpu_latency_qos_affinity_remove' [-Wmissing-prototypes]
345 | int cpu_latency_qos_affinity_remove(struct cpu_affinity_qos_req *pm_req)
| ^
include/linux/pm_qos.h:345:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
345 | int cpu_latency_qos_affinity_remove(struct cpu_affinity_qos_req *pm_req)
| ^
| static
>> include/linux/pm_qos.h:349:5: warning: no previous prototype for function 'cpu_latency_qos_affinity_release' [-Wmissing-prototypes]
349 | int cpu_latency_qos_affinity_release(struct list_head *pm_reqs)
| ^
include/linux/pm_qos.h:349:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
349 | int cpu_latency_qos_affinity_release(struct list_head *pm_reqs)
| ^
| static
>> include/linux/pm_qos.h:353:6: warning: no previous prototype for function 'wakeup_qos_affinity_idle_cpu' [-Wmissing-prototypes]
353 | void wakeup_qos_affinity_idle_cpu(int cpu) {}
| ^
include/linux/pm_qos.h:353:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
353 | void wakeup_qos_affinity_idle_cpu(int cpu) {}
| ^
| static
In file included from kernel/cpu.c:41:
In file included from include/trace/events/power.h:10:
include/linux/pm_qos.h:335:5: error: redefinition of 'cpu_latency_qos_affinity_add'
335 | int cpu_latency_qos_affinity_add(struct cpu_affinity_qos_req *pm_req,
| ^
include/linux/pm_qos.h:335:5: note: previous definition is here
335 | int cpu_latency_qos_affinity_add(struct cpu_affinity_qos_req *pm_req,
| ^
In file included from kernel/cpu.c:41:
In file included from include/trace/events/power.h:10:
include/linux/pm_qos.h:340:5: error: redefinition of 'cpu_latency_qos_affinity_update'
340 | int cpu_latency_qos_affinity_update(struct cpu_affinity_qos_req *pm_req,
| ^
include/linux/pm_qos.h:340:5: note: previous definition is here
340 | int cpu_latency_qos_affinity_update(struct cpu_affinity_qos_req *pm_req,
| ^
In file included from kernel/cpu.c:41:
In file included from include/trace/events/power.h:10:
include/linux/pm_qos.h:345:5: error: redefinition of 'cpu_latency_qos_affinity_remove'
345 | int cpu_latency_qos_affinity_remove(struct cpu_affinity_qos_req *pm_req)
| ^
include/linux/pm_qos.h:345:5: note: previous definition is here
345 | int cpu_latency_qos_affinity_remove(struct cpu_affinity_qos_req *pm_req)
| ^
In file included from kernel/cpu.c:41:
In file included from include/trace/events/power.h:10:
include/linux/pm_qos.h:349:5: error: redefinition of 'cpu_latency_qos_affinity_release'
349 | int cpu_latency_qos_affinity_release(struct list_head *pm_reqs)
| ^
include/linux/pm_qos.h:349:5: note: previous definition is here
349 | int cpu_latency_qos_affinity_release(struct list_head *pm_reqs)
| ^
In file included from kernel/cpu.c:41:
In file included from include/trace/events/power.h:10:
include/linux/pm_qos.h:353:6: error: redefinition of 'wakeup_qos_affinity_idle_cpu'
353 | void wakeup_qos_affinity_idle_cpu(int cpu) {}
| ^
include/linux/pm_qos.h:353:6: note: previous definition is here
353 | void wakeup_qos_affinity_idle_cpu(int cpu) {}
| ^
5 warnings and 5 errors generated.
--
In file included from kernel/sched/core.c:88:
In file included from kernel/sched/sched.h:31:
In file included from include/linux/cpufreq.h:19:
>> include/linux/pm_qos.h:335:5: warning: no previous prototype for function 'cpu_latency_qos_affinity_add' [-Wmissing-prototypes]
335 | int cpu_latency_qos_affinity_add(struct cpu_affinity_qos_req *pm_req,
| ^
include/linux/pm_qos.h:335:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
335 | int cpu_latency_qos_affinity_add(struct cpu_affinity_qos_req *pm_req,
| ^
| static
>> include/linux/pm_qos.h:340:5: warning: no previous prototype for function 'cpu_latency_qos_affinity_update' [-Wmissing-prototypes]
340 | int cpu_latency_qos_affinity_update(struct cpu_affinity_qos_req *pm_req,
| ^
include/linux/pm_qos.h:340:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
340 | int cpu_latency_qos_affinity_update(struct cpu_affinity_qos_req *pm_req,
| ^
| static
>> include/linux/pm_qos.h:345:5: warning: no previous prototype for function 'cpu_latency_qos_affinity_remove' [-Wmissing-prototypes]
345 | int cpu_latency_qos_affinity_remove(struct cpu_affinity_qos_req *pm_req)
| ^
include/linux/pm_qos.h:345:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
345 | int cpu_latency_qos_affinity_remove(struct cpu_affinity_qos_req *pm_req)
| ^
| static
>> include/linux/pm_qos.h:349:5: warning: no previous prototype for function 'cpu_latency_qos_affinity_release' [-Wmissing-prototypes]
349 | int cpu_latency_qos_affinity_release(struct list_head *pm_reqs)
| ^
include/linux/pm_qos.h:349:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
349 | int cpu_latency_qos_affinity_release(struct list_head *pm_reqs)
| ^
| static
>> include/linux/pm_qos.h:353:6: warning: no previous prototype for function 'wakeup_qos_affinity_idle_cpu' [-Wmissing-prototypes]
353 | void wakeup_qos_affinity_idle_cpu(int cpu) {}
| ^
include/linux/pm_qos.h:353:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
353 | void wakeup_qos_affinity_idle_cpu(int cpu) {}
| ^
| static
In file included from kernel/sched/core.c:88:
In file included from kernel/sched/sched.h:73:
In file included from include/trace/events/power.h:10:
include/linux/pm_qos.h:335:5: error: redefinition of 'cpu_latency_qos_affinity_add'
335 | int cpu_latency_qos_affinity_add(struct cpu_affinity_qos_req *pm_req,
| ^
include/linux/pm_qos.h:335:5: note: previous definition is here
335 | int cpu_latency_qos_affinity_add(struct cpu_affinity_qos_req *pm_req,
| ^
In file included from kernel/sched/core.c:88:
In file included from kernel/sched/sched.h:73:
In file included from include/trace/events/power.h:10:
include/linux/pm_qos.h:340:5: error: redefinition of 'cpu_latency_qos_affinity_update'
340 | int cpu_latency_qos_affinity_update(struct cpu_affinity_qos_req *pm_req,
| ^
include/linux/pm_qos.h:340:5: note: previous definition is here
340 | int cpu_latency_qos_affinity_update(struct cpu_affinity_qos_req *pm_req,
| ^
In file included from kernel/sched/core.c:88:
In file included from kernel/sched/sched.h:73:
In file included from include/trace/events/power.h:10:
include/linux/pm_qos.h:345:5: error: redefinition of 'cpu_latency_qos_affinity_remove'
345 | int cpu_latency_qos_affinity_remove(struct cpu_affinity_qos_req *pm_req)
| ^
include/linux/pm_qos.h:345:5: note: previous definition is here
345 | int cpu_latency_qos_affinity_remove(struct cpu_affinity_qos_req *pm_req)
| ^
In file included from kernel/sched/core.c:88:
In file included from kernel/sched/sched.h:73:
In file included from include/trace/events/power.h:10:
include/linux/pm_qos.h:349:5: error: redefinition of 'cpu_latency_qos_affinity_release'
349 | int cpu_latency_qos_affinity_release(struct list_head *pm_reqs)
| ^
include/linux/pm_qos.h:349:5: note: previous definition is here
349 | int cpu_latency_qos_affinity_release(struct list_head *pm_reqs)
| ^
In file included from kernel/sched/core.c:88:
In file included from kernel/sched/sched.h:73:
In file included from include/trace/events/power.h:10:
include/linux/pm_qos.h:353:6: error: redefinition of 'wakeup_qos_affinity_idle_cpu'
353 | void wakeup_qos_affinity_idle_cpu(int cpu) {}
| ^
include/linux/pm_qos.h:353:6: note: previous definition is here
353 | void wakeup_qos_affinity_idle_cpu(int cpu) {}
| ^
kernel/sched/core.c:7686:12: warning: array index -1 is before the beginning of the array [-Warray-bounds]
7686 | preempt_modes[preempt_dynamic_mode] : "undef",
| ^ ~~~~~~~~~~~~~~~~~~~~
kernel/sched/core.c:7661:1: note: array 'preempt_modes' declared here
7661 | const char *preempt_modes[] = {
| ^
6 warnings and 5 errors generated.
vim +/cpu_latency_qos_affinity_add +335 include/linux/pm_qos.h
325
326 #if defined(CONFIG_CPU_IDLE) && defined(CONFIG_PM)
327 int cpu_latency_qos_affinity_add(struct cpu_affinity_qos_req *pm_req,
328 const cpumask_t *affinity_mask, s32 latency_value);
329 int cpu_latency_qos_affinity_update(struct cpu_affinity_qos_req *pm_req,
330 s32 new_value);
331 int cpu_latency_qos_affinity_remove(struct cpu_affinity_qos_req *pm_req);
332 int cpu_latency_qos_affinity_release(struct list_head *pm_reqs);
333 void wakeup_qos_affinity_idle_cpu(int cpu);
334 #else
> 335 int cpu_latency_qos_affinity_add(struct cpu_affinity_qos_req *pm_req,
336 const cpumask_t *affinity_mask, s32 latency_value)
337 {
338 return 0;
339 }
> 340 int cpu_latency_qos_affinity_update(struct cpu_affinity_qos_req *pm_req,
341 s32 new_value)
342 {
343 return 0;
344 }
> 345 int cpu_latency_qos_affinity_remove(struct cpu_affinity_qos_req *pm_req)
346 {
347 return 0;
348 }
> 349 int cpu_latency_qos_affinity_release(struct list_head *pm_reqs)
350 {
351 return 0;
352 }
> 353 void wakeup_qos_affinity_idle_cpu(int cpu) {}
--
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