WARNING: line length of 81 exceeds 80 columns
#42: FILE: tools/lib/bpf/bpf.c:405:
+			     __u64 flags, const struct bpf_map_update_opts *opts)

ERROR: space prohibited before that ':' (ctx:WxV)
#78: FILE: tools/lib/bpf/bpf.h:154:
+	size_t :0;
 	       ^

CHECK: Please use a blank line after function/struct/union/enum declarations
#80: FILE: tools/lib/bpf/bpf.h:156:
+};
+#define bpf_map_update_opts__last_field target_cpu

WARNING: line length of 83 exceeds 80 columns
#81: FILE: tools/lib/bpf/bpf.h:157:
+LIBBPF_API int bpf_map_update_elem_opts(int fd, const void *key, const void *value,

WARNING: line length of 93 exceeds 80 columns
#82: FILE: tools/lib/bpf/bpf.h:158:
+					__u64 flags, const struct bpf_map_update_opts *opts);

CHECK: Alignment should match open parenthesis
#117: FILE: tools/testing/selftests/bpf/prog_tests/sockmap_basic.c:203:
+	LIBBPF_OPTS(bpf_map_update_opts, update_opts,
+		.target_cpu = &target_cpu,

WARNING: line length of 91 exceeds 80 columns
#128: FILE: tools/testing/selftests/bpf/prog_tests/sockmap_basic.c:228:
+		err = bpf_map_update_elem_opts(src, &zero, &sk, BPF_NOEXIST, &update_opts);

WARNING: From:/Signed-off-by: email name mismatch: 'From: mrpre <mrpre@163.com>' != 'Signed-off-by: Jiayuan Chen <mrpre@163.com>'

total: 1 errors, 5 warnings, 2 checks, 104 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 e8cf1f8aeb86 ("bpf: implement libbpf sockmap cpu affinity") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE 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.