WARNING: line length of 90 exceeds 80 columns
#40: FILE: tools/include/uapi/linux/bpf.h:1762:
+				__aligned_u64	log_buf;	/* user supplied buffer */

WARNING: line length of 89 exceeds 80 columns
#41: FILE: tools/include/uapi/linux/bpf.h:1763:
+				__u32		log_size;	/* size of user buffer */

WARNING: line length of 98 exceeds 80 columns
#62: FILE: tools/lib/bpf/bpf.c:756:
+		attr.link_create.tracing.log_buf = ptr_to_u64(OPTS_GET(opts, tracing.log_buf, 0));

WARNING: line length of 88 exceeds 80 columns
#63: FILE: tools/lib/bpf/bpf.c:757:
+		attr.link_create.tracing.log_size = OPTS_GET(opts, tracing.log_size, 0);

WARNING: line length of 89 exceeds 80 columns
#100: FILE: tools/lib/bpf/libbpf.c:12840:
+static struct bpf_link *bpf_program_attach_freplace(const struct bpf_freplace_opts *opts)

WARNING: line length of 82 exceeds 80 columns
#159: FILE: tools/lib/bpf/libbpf.h:829:
+	/* buffer to receive error message when fail to bpf_check_attach_target */

CHECK: Please use a blank line after function/struct/union/enum declarations
#163: FILE: tools/lib/bpf/libbpf.h:833:
+};
+LIBBPF_API struct bpf_link *

total: 0 errors, 6 warnings, 1 checks, 113 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 9a007a864bce ("bpf, libbpf: Capture error message of freplace attachment failure") 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.
total: 0 errors, 6 warnings, 1 checks, 113 lines checked