ERROR: spaces required around that ':' (ctx:VxW) #26: FILE: tools/testing/selftests/bpf/progs/verifier_stack_noperfmon.c:24: +__description("stack_noperfmon: narrow spill onto 64-bit scalar spilled slots") ^ CHECK: spaces preferred around that '-' (ctx:VxV) #26: FILE: tools/testing/selftests/bpf/progs/verifier_stack_noperfmon.c:24: +__description("stack_noperfmon: narrow spill onto 64-bit scalar spilled slots") ^ WARNING: Avoid unnecessary line continuations #30: FILE: tools/testing/selftests/bpf/progs/verifier_stack_noperfmon.c:28: + asm volatile(" \ WARNING: Avoid line continuations in quoted strings #30: FILE: tools/testing/selftests/bpf/progs/verifier_stack_noperfmon.c:28: + asm volatile(" \ total: 1 errors, 2 warnings, 1 checks, 18 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 c02982daa158 ("selftests/bpf: Add test for narrow spill into 64-bit spilled scalar") 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.