[norov:bitmap-20211123 6/6] arch/x86/kernel/cpu/resctrl/rdtgroup.c:444:1: warning: ISO C90 forbids mixed declarations and code

From: kernel test robot
Date: Wed Nov 24 2021 - 12:20:22 EST

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tree: https://github.com/norov/linux bitmap-20211123
head: 160c7117e01f07ec3e2762d05fd94479a4d0a06f
commit: 160c7117e01f07ec3e2762d05fd94479a4d0a06f [6/6] lib/cpumask: replace cpumask_weight with cpumask_{empty,gt,le,eq}
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20211125/202111250149.3ztPvkO5-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/norov/linux/commit/160c7117e01f07ec3e2762d05fd94479a4d0a06f
git remote add norov https://github.com/norov/linux
git fetch --no-tags norov bitmap-20211123
git checkout 160c7117e01f07ec3e2762d05fd94479a4d0a06f
# save the config file to linux build tree
make W=1 ARCH=x86_64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

arch/x86/kernel/cpu/resctrl/rdtgroup.c: In function 'cpus_ctrl_write':
arch/x86/kernel/cpu/resctrl/rdtgroup.c:444:16: error: invalid storage class for function 'rdtgroup_cpus_write'
444 | static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~
>> arch/x86/kernel/cpu/resctrl/rdtgroup.c:444:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
444 | static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
| ^~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:525:13: error: invalid storage class for function 'rdtgroup_remove'
525 | static void rdtgroup_remove(struct rdtgroup *rdtgrp)
| ^~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:531:13: error: invalid storage class for function '_update_task_closid_rmid'
531 | static void _update_task_closid_rmid(void *task)
| ^~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:541:13: error: invalid storage class for function 'update_task_closid_rmid'
541 | static void update_task_closid_rmid(struct task_struct *t)
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:549:12: error: invalid storage class for function '__rdtgroup_move_task'
549 | static int __rdtgroup_move_task(struct task_struct *tsk,
| ^~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:597:13: error: invalid storage class for function 'is_closid_match'
597 | static bool is_closid_match(struct task_struct *t, struct rdtgroup *r)
| ^~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:603:13: error: invalid storage class for function 'is_rmid_match'
603 | static bool is_rmid_match(struct task_struct *t, struct rdtgroup *r)
| ^~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:634:12: error: invalid storage class for function 'rdtgroup_task_write_permission'
634 | static int rdtgroup_task_write_permission(struct task_struct *task,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:656:12: error: invalid storage class for function 'rdtgroup_move_task'
656 | static int rdtgroup_move_task(pid_t pid, struct rdtgroup *rdtgrp,
| ^~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:685:16: error: invalid storage class for function 'rdtgroup_tasks_write'
685 | static ssize_t rdtgroup_tasks_write(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:716:13: error: invalid storage class for function 'show_rdt_tasks'
716 | static void show_rdt_tasks(struct rdtgroup *r, struct seq_file *s)
| ^~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:728:12: error: invalid storage class for function 'rdtgroup_tasks_show'
728 | static int rdtgroup_tasks_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:830:12: error: invalid storage class for function 'rdt_last_cmd_status_show'
830 | static int rdt_last_cmd_status_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:845:12: error: invalid storage class for function 'rdt_num_closids_show'
845 | static int rdt_num_closids_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:854:12: error: invalid storage class for function 'rdt_default_ctrl_show'
854 | static int rdt_default_ctrl_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:864:12: error: invalid storage class for function 'rdt_min_cbm_bits_show'
864 | static int rdt_min_cbm_bits_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:874:12: error: invalid storage class for function 'rdt_shareable_bits_show'
874 | static int rdt_shareable_bits_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:898:12: error: invalid storage class for function 'rdt_bit_usage_show'
898 | static int rdt_bit_usage_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:978:12: error: invalid storage class for function 'rdt_min_bw_show'
978 | static int rdt_min_bw_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:988:12: error: invalid storage class for function 'rdt_num_rmids_show'
988 | static int rdt_num_rmids_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:998:12: error: invalid storage class for function 'rdt_mon_features_show'
998 | static int rdt_mon_features_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1010:12: error: invalid storage class for function 'rdt_bw_gran_show'
1010 | static int rdt_bw_gran_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1020:12: error: invalid storage class for function 'rdt_delay_linear_show'
1020 | static int rdt_delay_linear_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1030:12: error: invalid storage class for function 'max_threshold_occ_show'
1030 | static int max_threshold_occ_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1041:12: error: invalid storage class for function 'rdt_thread_throttle_mode_show'
1041 | static int rdt_thread_throttle_mode_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1055:16: error: invalid storage class for function 'max_threshold_occ_write'
1055 | static ssize_t max_threshold_occ_write(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1078:12: error: invalid storage class for function 'rdtgroup_mode_show'
1078 | static int rdtgroup_mode_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1095:31: error: invalid storage class for function 'resctrl_peer_type'
1095 | static enum resctrl_conf_type resctrl_peer_type(enum resctrl_conf_type my_type)
| ^~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1128:13: error: invalid storage class for function '__rdtgroup_cbm_overlaps'
1128 | static bool __rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1210:13: error: invalid storage class for function 'rdtgroup_mode_test_exclusive'
1210 | static bool rdtgroup_mode_test_exclusive(struct rdtgroup *rdtgrp)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1246:16: error: invalid storage class for function 'rdtgroup_mode_write'
1246 | static ssize_t rdtgroup_mode_write(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1355:12: error: invalid storage class for function 'rdtgroup_size_show'
1355 | static int rdtgroup_size_show(struct kernfs_open_file *of,
| ^~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1425:15: error: initializer element is not constant
1425 | .seq_show = rdt_last_cmd_status_show,
| ^~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1425:15: note: (near initialization for 'res_common_files[0].seq_show')
arch/x86/kernel/cpu/resctrl/rdtgroup.c:1432:15: error: initializer element is not constant

vim +444 arch/x86/kernel/cpu/resctrl/rdtgroup.c

b09d981b3f3466 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 443
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 @444 static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 445 char *buf, size_t nbytes, loff_t off)
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 446 {
a9fcf8627dc010 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 447 cpumask_var_t tmpmask, newmask, tmpmask1;
b09d981b3f3466 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 448 struct rdtgroup *rdtgrp;
f410770293a1fb arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Fenghua Yu 2016-11-11 449 int ret;
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 450
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 451 if (!buf)
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 452 return -EINVAL;
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 453
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 454 if (!zalloc_cpumask_var(&tmpmask, GFP_KERNEL))
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 455 return -ENOMEM;
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 456 if (!zalloc_cpumask_var(&newmask, GFP_KERNEL)) {
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 457 free_cpumask_var(tmpmask);
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 458 return -ENOMEM;
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 459 }
a9fcf8627dc010 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 460 if (!zalloc_cpumask_var(&tmpmask1, GFP_KERNEL)) {
a9fcf8627dc010 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 461 free_cpumask_var(tmpmask);
a9fcf8627dc010 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 462 free_cpumask_var(newmask);
a9fcf8627dc010 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 463 return -ENOMEM;
a9fcf8627dc010 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 464 }
a2584e1d5a74e8 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Thomas Gleixner 2016-11-15 465
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 466 rdtgrp = rdtgroup_kn_lock_live(of->kn);
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 467 if (!rdtgrp) {
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 468 ret = -ENOENT;
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 469 goto unlock;
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 470 }
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 471
c966dac8a5ede5 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22 472 if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKED ||
c966dac8a5ede5 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22 473 rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP) {
c966dac8a5ede5 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22 474 ret = -EINVAL;
723f1a0dd8e26a arch/x86/kernel/cpu/resctrl/rdtgroup.c Babu Moger 2018-11-21 475 rdt_last_cmd_puts("Pseudo-locking in progress\n");
c966dac8a5ede5 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22 476 goto unlock;
c966dac8a5ede5 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22 477 }
c966dac8a5ede5 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22 478
4ffa3c977b5da2 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Jiri Olsa 2017-04-10 479 if (is_cpu_list(of))
4ffa3c977b5da2 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Jiri Olsa 2017-04-10 480 ret = cpulist_parse(buf, newmask);
4ffa3c977b5da2 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Jiri Olsa 2017-04-10 481 else
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 482 ret = cpumask_parse(buf, newmask);
4ffa3c977b5da2 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Jiri Olsa 2017-04-10 483
94457b36e8a502 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2017-09-25 484 if (ret) {
723f1a0dd8e26a arch/x86/kernel/cpu/resctrl/rdtgroup.c Babu Moger 2018-11-21 485 rdt_last_cmd_puts("Bad CPU list/mask\n");
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 486 goto unlock;
94457b36e8a502 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2017-09-25 487 }
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 488
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 489 /* check that user didn't specify any offline cpus */
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 490 cpumask_andnot(tmpmask, newmask, cpu_online_mask);
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 491 if (cpumask_weight(tmpmask)) {
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 492 ret = -EINVAL;
723f1a0dd8e26a arch/x86/kernel/cpu/resctrl/rdtgroup.c Babu Moger 2018-11-21 493 rdt_last_cmd_puts("Can only assign online CPUs\n");
a2584e1d5a74e8 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Thomas Gleixner 2016-11-15 494 goto unlock;
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 495 }
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 496
b09d981b3f3466 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 497 if (rdtgrp->type == RDTCTRL_GROUP)
a9fcf8627dc010 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 498 ret = cpus_ctrl_write(rdtgrp, newmask, tmpmask, tmpmask1);
a9fcf8627dc010 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 499 else if (rdtgrp->type == RDTMON_GROUP)
a9fcf8627dc010 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 500 ret = cpus_mon_write(rdtgrp, newmask, tmpmask);
b09d981b3f3466 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 501 else
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 502 ret = -EINVAL;
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 503
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 504 unlock:
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 505 rdtgroup_kn_unlock(of->kn);
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 506 free_cpumask_var(tmpmask);
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 507 free_cpumask_var(newmask);
a9fcf8627dc010 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Vikas Shivappa 2017-07-25 508 free_cpumask_var(tmpmask1);
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 509
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 510 return ret ?: nbytes;
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 511 }
12e0110c11a460 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Tony Luck 2016-10-28 512

:::::: The code at line 444 was first introduced by commit
:::::: 12e0110c11a460b890ed7e1071198ced732152c9 x86/intel_rdt: Add cpus file

:::::: TO: Tony Luck <tony.luck@xxxxxxxxx>
:::::: CC: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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