WARNING: line length of 83 exceeds 80 columns
#100: FILE: tools/lib/bpf/gen_loader.c:379:
+	err = libbpf_sha256(gen->data_start, gen->data_cur - gen->data_start, sha);

WARNING: line length of 88 exceeds 80 columns
#107: FILE: tools/lib/bpf/gen_loader.c:386:
+			(struct bpf_insn *)(gen->insn_start + gen->hash_insn_offset[i]);

WARNING: line length of 84 exceeds 80 columns
#136: FILE: tools/lib/bpf/gen_loader.c:590:
+	__s64 off = -(gen->insn_cur - gen->insn_start - gen->cleanup_label) / 8 - 1;

WARNING: line length of 88 exceeds 80 columns
#142: FILE: tools/lib/bpf/gen_loader.c:596:
+		emit(gen, BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, i * sizeof(__u64)));

total: 0 errors, 4 warnings, 0 checks, 107 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 e4b7014e07ec ("libbpf: Embed and verify the metadata hash in the loader") 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, 4 warnings, 0 checks, 107 lines checked