WARNING: line length of 88 exceeds 80 columns
#55: FILE: tools/testing/selftests/bpf/prog_tests/usdt_o2.c:25:
+	asm volatile("" : "=d"(base), "=a"(idx) : "0"(array), "1"((__u32)0) : "memory");

total: 0 errors, 1 warnings, 0 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 e9e7d1ae4aab ("selftests/bpf: make usdt_o2 reliably generate SIB USDT arg spec") 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, 1 warnings, 0 checks, 18 lines checked