WARNING: line length of 81 exceeds 80 columns
#95: FILE: tools/testing/selftests/bpf/veristat.c:229:
+#define log_errno(fmt, ...) log_errno_aux(__FILE__, __LINE__, fmt, ##__VA_ARGS__)

WARNING: line length of 86 exceeds 80 columns
#174: FILE: tools/testing/selftests/bpf/veristat.c:1337:
+static int scanf_one_line(const char *file, int fields_expected, const char *fmt, ...)

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#212: FILE: tools/testing/selftests/bpf/veristat.c:1375:
+static int snprintf_trunc(char *str, volatile size_t size, const char *fmt, ...)

WARNING: line length of 85 exceeds 80 columns
#231: FILE: tools/testing/selftests/bpf/veristat.c:1394:
+		snprintf_trunc(buf, sizeof(buf), "%s/cgroup.procs", env.orig_cgroup);

WARNING: line length of 90 exceeds 80 columns
#234: FILE: tools/testing/selftests/bpf/veristat.c:1397:
+			log_errno("moving self to original cgroup %s\n", env.orig_cgroup);

WARNING: line length of 90 exceeds 80 columns
#263: FILE: tools/testing/selftests/bpf/veristat.c:1426:
+	err = scanf_one_line("/proc/self/mounts", 2, "%*s %" STR(PATH_MAX) "s cgroup2 %s",

WARNING: line length of 81 exceeds 80 columns
#269: FILE: tools/testing/selftests/bpf/veristat.c:1432:
+			fprintf(stderr, "Can't find cgroupfs v2 mount point.\n");

WARNING: line length of 84 exceeds 80 columns
#274: FILE: tools/testing/selftests/bpf/veristat.c:1437:
+	err = scanf_one_line("/proc/self/cgroup", 1, "0::%" STR(PATH_MAX) "s", buf);

WARNING: line length of 96 exceeds 80 columns
#283: FILE: tools/testing/selftests/bpf/veristat.c:1446:
+	snprintf_trunc(env.orig_cgroup, sizeof(env.orig_cgroup), "%s/%s", cgroup_fs_mount, buf);

WARNING: line length of 97 exceeds 80 columns
#285: FILE: tools/testing/selftests/bpf/veristat.c:1448:
+	snprintf_trunc(buf, sizeof(buf), "%s/veristat-accounting-%d", cgroup_fs_mount, getpid());

WARNING: Prefer strscpy over strcpy - see: https://github.com/KSPP/linux/issues/88
#291: FILE: tools/testing/selftests/bpf/veristat.c:1454:
+	strcpy(env.stat_cgroup, buf);

WARNING: line length of 81 exceeds 80 columns
#390: FILE: tools/testing/selftests/bpf/veristat.c:1589:
+	stats->stats[MEMORY_PEAK] = mem_peak < 0 ? -1 : mem_peak / (1024 * 1024);

total: 0 errors, 12 warnings, 0 checks, 374 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 0ab0830b6a08 ("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, 12 warnings, 0 checks, 374 lines checked