WARNING: line length of 87 exceeds 80 columns
#157: FILE: mm/bpf_numa_balancing.c:34:
+	/* We can cache memcg::bpf_numab to mm::bpf_numab if it becomes a bettleneck */

WARNING: line length of 81 exceeds 80 columns
#165: FILE: mm/bpf_numa_balancing.c:42:
+	 * propagate policies during registration, simplifying the kernel design.

CHECK: Alignment should match open parenthesis
#213: FILE: mm/bpf_numa_balancing.c:90:
+static int bpf_numab_init_member(const struct btf_type *t,
+			       const struct btf_member *member,

WARNING: line length of 81 exceeds 80 columns
#251: FILE: mm/bpf_numa_balancing.c:128:
+	/* Each memory cgroup can have at most one attached BPF program to ensure

WARNING: line length of 83 exceeds 80 columns
#252: FILE: mm/bpf_numa_balancing.c:129:
+	 * exclusive control and avoid interference between different BPF policies.

WARNING: line length of 86 exceeds 80 columns
#281: FILE: mm/bpf_numa_balancing.c:158:
+	rcu_replace_pointer(memcg->bpf_numab, NULL, lockdep_is_held(&numab_ops_lock));

WARNING: line length of 100 exceeds 80 columns
#297: FILE: mm/bpf_numa_balancing.c:174:
+	/* The update can proceed regardless of whether memcg->bpf_numab has been previously set. */

WARNING: line length of 85 exceeds 80 columns
#298: FILE: mm/bpf_numa_balancing.c:175:
+	rcu_replace_pointer(memcg->bpf_numab, ops, lockdep_is_held(&numab_ops_lock));

total: 0 errors, 7 warnings, 1 checks, 288 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 a033f537359b ("mm: add support for bpf based numa balancing") 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, 7 warnings, 1 checks, 288 lines checked