WARNING: line length of 81 exceeds 80 columns
#77: FILE: include/linux/bpf-cgroup.h:466:
+						struct bpf_struct_ops_link *link)

ERROR: space prohibited before that ':' (ctx:WxV)
#114: FILE: include/uapi/linux/bpf.h:6779:
+			__u32 :32;
 			      ^

CHECK: Prefer using the BIT macro
#365: FILE: tools/include/uapi/linux/bpf.h:1240:
+#define BPF_F_CGROUP_FD		(1U << 7)

total: 1 errors, 1 warnings, 1 checks, 282 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 339b1570390c ("bpf: allow attaching struct_ops to cgroups") 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.