CHECK: extern prototypes should be avoided in .h files
#37: FILE: include/linux/sched/isolation.h:54:
+extern int housekeeping_update(struct cpumask *isol_mask, unsigned long flags);

WARNING: line length of 89 exceeds 80 columns
#50: FILE: kernel/cgroup/cpuset.c:1357:
+		WARN_ON_ONCE(housekeeping_update(isolated_hk_cpus, BIT(HK_TYPE_DOMAIN)));

WARNING: line length of 84 exceeds 80 columns
#107: FILE: kernel/sched/isolation.c:157:
+			    !cpumask_subset(trial[i], housekeeping_cpumask(boot))) {

CHECK: Lines should not end with a '('
#162: FILE: kernel/sched/isolation.c:194:
+		WARN_ON_ONCE(workqueue_unbound_housekeeping_update(

total: 0 errors, 2 warnings, 2 checks, 133 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit a6b9a97208f5 ("sched/isolation: Enhance housekeeping_update() to support updating more than one HK cpumask") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 2 warnings, 2 checks, 133 lines checked