WARNING: line length of 81 exceeds 80 columns
#105: FILE: tools/testing/selftests/bpf/veristat.c:226:
+#define log_errno(fmt, ...) log_errno_aux(__FILE__, __LINE__, fmt, ##__VA_ARGS__)

WARNING: line length of 86 exceeds 80 columns
#184: FILE: tools/testing/selftests/bpf/veristat.c:1334:
+static int scanf_one_line(const char *file, int fields_expected, const char *fmt, ...)

WARNING: line length of 90 exceeds 80 columns
#226: FILE: tools/testing/selftests/bpf/veristat.c:1376:
+			log_errno("moving self to original cgroup %s\n", env.orig_cgroup);

WARNING: line length of 81 exceeds 80 columns
#261: FILE: tools/testing/selftests/bpf/veristat.c:1411:
+			fprintf(stderr, "Can't find cgroupfs v2 mount point.\n");

WARNING: line length of 90 exceeds 80 columns
#275: FILE: tools/testing/selftests/bpf/veristat.c:1425:
+	snprintf(env.orig_cgroup, sizeof(env.orig_cgroup), "%s/%s", cgroup_fs_mount, buf);

WARNING: line length of 91 exceeds 80 columns
#277: FILE: tools/testing/selftests/bpf/veristat.c:1427:
+	snprintf(buf, sizeof(buf), "%s/veristat-accounting-%d", cgroup_fs_mount, getpid());

WARNING: Prefer strscpy over strcpy - see: https://github.com/KSPP/linux/issues/88
#283: FILE: tools/testing/selftests/bpf/veristat.c:1433:
+	strcpy(env.stat_cgroup, buf);

WARNING: line length of 81 exceeds 80 columns
#385: FILE: tools/testing/selftests/bpf/veristat.c:1571:
+	stats->stats[MEMORY_PEAK] = mem_peak < 0 ? -1 : mem_peak / (1024 * 1024);

total: 0 errors, 8 warnings, 0 checks, 364 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 5fd9dbe42573 ("veristat: memory accounting for bpf programs") 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, 8 warnings, 0 checks, 364 lines checked