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Date: Thu, 10 Aug 2023 15:41:46 +0800
From: kernel test robot <lkp@...el.com>
To: David Vernet <void@...ifault.com>, linux-kernel@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
peterz@...radead.org, mingo@...hat.com, juri.lelli@...hat.com,
vincent.guittot@...aro.org, dietmar.eggemann@....com,
rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
bristot@...hat.com, vschneid@...hat.com, tj@...nel.org,
roman.gushchin@...ux.dev, gautham.shenoy@....com,
kprateek.nayak@....com, aaron.lu@...el.com,
wuyun.abel@...edance.com, kernel-team@...a.com
Subject: Re: [PATCH v3 6/7] sched: Implement shared runqueue in CFS
Hi David,
kernel test robot noticed the following build errors:
[auto build test ERROR on tip/sched/core]
[cannot apply to linus/master v6.5-rc5 next-20230809]
[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/David-Vernet/sched-Expose-move_queued_task-from-core-c/20230810-061611
base: tip/sched/core
patch link: https://lore.kernel.org/r/20230809221218.163894-7-void%40manifault.com
patch subject: [PATCH v3 6/7] sched: Implement shared runqueue in CFS
config: hexagon-randconfig-r045-20230809 (https://download.01.org/0day-ci/archive/20230810/202308101547.1n2K9PyC-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230810/202308101547.1n2K9PyC-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/202308101547.1n2K9PyC-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
In file included from kernel/sched/core.c:9:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
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/core.c:9:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
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/core.c:9:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
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);
| ~~~~~~~~~~ ^
>> kernel/sched/core.c:9768:6: warning: no previous prototype for function 'sched_update_domains' [-Wmissing-prototypes]
9768 | void sched_update_domains(void)
| ^
kernel/sched/core.c:9768:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
9768 | void sched_update_domains(void)
| ^
| static
kernel/sched/core.c:2467:20: warning: unused function 'rq_has_pinned_tasks' [-Wunused-function]
2467 | static inline bool rq_has_pinned_tasks(struct rq *rq)
| ^
kernel/sched/core.c:5818:20: warning: unused function 'sched_tick_stop' [-Wunused-function]
5818 | static inline void sched_tick_stop(int cpu) { }
| ^
kernel/sched/core.c:6519:20: warning: unused function 'sched_core_cpu_deactivate' [-Wunused-function]
6519 | static inline void sched_core_cpu_deactivate(unsigned int cpu) {}
| ^
kernel/sched/core.c:6520:20: warning: unused function 'sched_core_cpu_dying' [-Wunused-function]
6520 | static inline void sched_core_cpu_dying(unsigned int cpu) {}
| ^
kernel/sched/core.c:9570:20: warning: unused function 'balance_hotplug_wait' [-Wunused-function]
9570 | static inline void balance_hotplug_wait(void)
| ^
12 warnings generated.
--
In file included from kernel/sched/build_utility.c:15:
In file included from include/linux/sched/isolation.h:6:
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/hexagon/include/asm/io.h:334:
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/build_utility.c:15:
In file included from include/linux/sched/isolation.h:6:
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/hexagon/include/asm/io.h:334:
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/build_utility.c:15:
In file included from include/linux/sched/isolation.h:6:
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/hexagon/include/asm/io.h:334:
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);
| ~~~~~~~~~~ ^
In file included from kernel/sched/build_utility.c:89:
>> kernel/sched/topology.c:2580:3: error: call to undeclared function 'sched_update_domains'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2580 | sched_update_domains();
| ^
kernel/sched/topology.c:2746:2: error: call to undeclared function 'sched_update_domains'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2746 | sched_update_domains();
| ^
6 warnings and 2 errors generated.
vim +/sched_update_domains +2580 kernel/sched/topology.c
2558
2559 /*
2560 * Set up scheduler domains and groups. For now this just excludes isolated
2561 * CPUs, but could be used to exclude other special cases in the future.
2562 */
2563 int __init sched_init_domains(const struct cpumask *cpu_map)
2564 {
2565 int err;
2566
2567 zalloc_cpumask_var(&sched_domains_tmpmask, GFP_KERNEL);
2568 zalloc_cpumask_var(&sched_domains_tmpmask2, GFP_KERNEL);
2569 zalloc_cpumask_var(&fallback_doms, GFP_KERNEL);
2570
2571 arch_update_cpu_topology();
2572 asym_cpu_capacity_scan();
2573 ndoms_cur = 1;
2574 doms_cur = alloc_sched_domains(ndoms_cur);
2575 if (!doms_cur)
2576 doms_cur = &fallback_doms;
2577 cpumask_and(doms_cur[0], cpu_map, housekeeping_cpumask(HK_TYPE_DOMAIN));
2578 err = build_sched_domains(doms_cur[0], NULL);
2579 if (!err)
> 2580 sched_update_domains();
2581
2582 return err;
2583 }
2584
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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