From: kernel test robot <lkp@intel.com>
To: steven@liquorix.net
Cc: oe-kbuild-all@lists.linux.dev
Subject: [zen:7.1/prjc 10/21] kernel/sched/alt_core.c:6405:60: warning: passing argument 1 of 'cpumask_weight' makes pointer from integer without a cast
Date: Tue, 23 Jun 2026 04:51:18 +0800 [thread overview]
Message-ID: <202606230430.QtOK3vmO-lkp@intel.com> (raw)
tree: https://github.com/zen-kernel/zen-kernel 7.1/prjc
head: 554af5ca804c16da84a47b49a517697a9b81bb54
commit: 6f7fb20c8e0c1938dcfda6adfa0f2080909db456 [10/21] sched/alt: Add wake_affine_idle()/wake_wide() affine wakeup support
config: nios2-allmodconfig (https://download.01.org/0day-ci/archive/20260623/202606230430.QtOK3vmO-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260623/202606230430.QtOK3vmO-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/202606230430.QtOK3vmO-lkp@intel.com/
All warnings (new ones prefixed by >>):
kernel/sched/alt_core.c:1519:6: error: redefinition of 'set_task_cpu'
1519 | void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
| ^~~~~~~~~~~~
In file included from kernel/sched/alt_core.c:15:
include/linux/sched.h:2340:20: note: previous definition of 'set_task_cpu' with type 'void(struct task_struct *, unsigned int)'
2340 | static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
| ^~~~~~~~~~~~
kernel/sched/alt_core.c: In function 'sched_init_topology_cpumask':
kernel/sched/alt_core.c:6404:57: error: implicit declaration of function 'cpu_coregroup_mask' [-Werror=implicit-function-declaration]
6404 | per_cpu(sd_llc_id, cpu) = cpumask_first(cpu_coregroup_mask(cpu));
| ^~~~~~~~~~~~~~~~~~
kernel/sched/alt_core.c:6404:57: warning: passing argument 1 of 'cpumask_first' makes pointer from integer without a cast [-Wint-conversion]
6404 | per_cpu(sd_llc_id, cpu) = cpumask_first(cpu_coregroup_mask(cpu));
| ^~~~~~~~~~~~~~~~~~~~~~~
| |
| int
In file included from include/linux/smp.h:13,
from include/linux/lockdep.h:14,
from include/linux/spinlock.h:63,
from include/linux/sched.h:37,
from kernel/sched/alt_core.c:15:
include/linux/cpumask.h:155:73: note: expected 'const struct cpumask *' but argument is of type 'int'
155 | static __always_inline unsigned int cpumask_first(const struct cpumask *srcp)
| ~~~~~~~~~~~~~~~~~~~~~~^~~~
>> kernel/sched/alt_core.c:6405:60: warning: passing argument 1 of 'cpumask_weight' makes pointer from integer without a cast [-Wint-conversion]
6405 | per_cpu(sd_llc_size, cpu) = cpumask_weight(cpu_coregroup_mask(cpu));
| ^~~~~~~~~~~~~~~~~~~~~~~
| |
| int
In file included from include/linux/smp.h:13,
from include/linux/lockdep.h:14,
from include/linux/spinlock.h:63,
from include/linux/sched.h:37,
from kernel/sched/alt_core.c:15:
include/linux/cpumask.h:868:74: note: expected 'const struct cpumask *' but argument is of type 'int'
868 | static __always_inline unsigned int cpumask_weight(const struct cpumask *srcp)
| ~~~~~~~~~~~~~~~~~~~~~~^~~~
kernel/sched/alt_core.c:6407:45: warning: passing argument 3 of 'cpumask_and' makes pointer from integer without a cast [-Wint-conversion]
6407 | TOPOLOGY_CPUMASK(coregroup, cpu_coregroup_mask(cpu), false);
| ^~~~~~~~~~~~~~~~~~~~~~~
| |
| int
kernel/sched/alt_core.c:6380:37: note: in definition of macro 'TOPOLOGY_CPUMASK'
6380 | if (cpumask_and(topo, topo, mask)) { \
| ^~~~
In file included from include/linux/smp.h:13,
from include/linux/lockdep.h:14,
from include/linux/spinlock.h:63,
from include/linux/sched.h:37,
from kernel/sched/alt_core.c:15:
include/linux/cpumask.h:714:40: note: expected 'const struct cpumask *' but argument is of type 'int'
714 | const struct cpumask *src2p)
| ~~~~~~~~~~~~~~~~~~~~~~^~~~~
kernel/sched/alt_core.c:6407:45: warning: passing argument 2 of 'cpumask_copy' makes pointer from integer without a cast [-Wint-conversion]
6407 | TOPOLOGY_CPUMASK(coregroup, cpu_coregroup_mask(cpu), false);
| ^~~~~~~~~~~~~~~~~~~~~~~
| |
| int
kernel/sched/alt_core.c:6381:36: note: in definition of macro 'TOPOLOGY_CPUMASK'
6381 | cpumask_copy(topo, mask); \
| ^~~~
In file included from include/linux/smp.h:13,
from include/linux/lockdep.h:14,
from include/linux/spinlock.h:63,
from include/linux/sched.h:37,
from kernel/sched/alt_core.c:15:
include/linux/cpumask.h:932:63: note: expected 'const struct cpumask *' but argument is of type 'int'
932 | void cpumask_copy(struct cpumask *dstp, const struct cpumask *srcp)
| ~~~~~~~~~~~~~~~~~~~~~~^~~~
In file included from include/linux/sched.h:16,
from kernel/sched/alt_core.c:15:
include/linux/cpumask_types.h:18:37: error: invalid type argument of '->' (have 'int')
18 | #define cpumask_bits(maskp) ((maskp)->bits)
| ^~
kernel/sched/alt_core.c:6386:55: note: in expansion of macro 'cpumask_bits'
6386 | bitmap_complement(cpumask_bits(topo), cpumask_bits(mask), \
| ^~~~~~~~~~~~
kernel/sched/alt_core.c:6407:17: note: in expansion of macro 'TOPOLOGY_CPUMASK'
6407 | TOPOLOGY_CPUMASK(coregroup, cpu_coregroup_mask(cpu), false);
| ^~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/cpumask_weight +6405 kernel/sched/alt_core.c
6378
6379 #define TOPOLOGY_CPUMASK(name, mask, last)\
6380 if (cpumask_and(topo, topo, mask)) { \
6381 cpumask_copy(topo, mask); \
6382 printk(KERN_INFO "sched: cpu#%02d topo: 0x%08lx - "#name, \
6383 cpu, (topo++)->bits[0]); \
6384 } \
6385 if (!last) \
6386 bitmap_complement(cpumask_bits(topo), cpumask_bits(mask), \
6387 nr_cpumask_bits);
6388
6389 static void sched_init_topology_cpumask(void)
6390 {
6391 int cpu;
6392 cpumask_t *topo;
6393
6394 for_each_online_cpu(cpu) {
6395 topo = per_cpu(sched_cpu_topo_masks, cpu);
6396
6397 bitmap_complement(cpumask_bits(topo), cpumask_bits(cpumask_of(cpu)),
6398 nr_cpumask_bits);
6399 #ifdef CONFIG_SCHED_SMT
6400 TOPOLOGY_CPUMASK(smt, topology_sibling_cpumask(cpu), false);
6401 #endif /* CONFIG_SCHED_SMT */
6402 TOPOLOGY_CPUMASK(cluster, topology_cluster_cpumask(cpu), false);
6403
6404 per_cpu(sd_llc_id, cpu) = cpumask_first(cpu_coregroup_mask(cpu));
> 6405 per_cpu(sd_llc_size, cpu) = cpumask_weight(cpu_coregroup_mask(cpu));
6406 per_cpu(sched_cpu_llc_mask, cpu) = topo;
6407 TOPOLOGY_CPUMASK(coregroup, cpu_coregroup_mask(cpu), false);
6408
6409 TOPOLOGY_CPUMASK(core, topology_core_cpumask(cpu), false);
6410
6411 TOPOLOGY_CPUMASK(others, cpu_online_mask, true);
6412
6413 per_cpu(sched_cpu_topo_end_mask, cpu) = topo;
6414 printk(KERN_INFO "sched: cpu#%02d llc_id = %d, llc_mask idx = %d\n",
6415 cpu, per_cpu(sd_llc_id, cpu),
6416 (int) (per_cpu(sched_cpu_llc_mask, cpu) -
6417 per_cpu(sched_cpu_topo_masks, cpu)));
6418 }
6419 }
6420
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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