selftests/bpf: fix veristat comp mode with new stats

JIRA: https://issues.redhat.com/browse/RHEL-78201

commit 9468f39
Author: Mahe Tardy <[email protected]>
Date:   Fri Dec 20 15:22:18 2024 +0000

    selftests/bpf: fix veristat comp mode with new stats

    Commit 82c1f13 ("selftests/bpf: Add more stats into veristat")
    introduced new stats, added by default in the CSV output, that were not
    added to parse_stat_value, used in parse_stats_csv which is used in
    comparison mode. Thus it broke comparison mode altogether making it fail
    with "Unrecognized stat #7" and EINVAL.

    One quirk is that PROG_TYPE and ATTACH_TYPE have been transformed to
    strings using libbpf_bpf_prog_type_str and libbpf_bpf_attach_type_str
    respectively. Since we might not want to compare those string values, we
    just skip the parsing in this patch. We might want to translate it back
    to the enum value or compare the string value directly.

    Fixes: 82c1f13 ("selftests/bpf: Add more stats into veristat")
    Signed-off-by: Mahe Tardy <[email protected]>
    Tested-by: Mykyta Yatsenko<[email protected]>
    Link: https://lore.kernel.org/r/[email protected]
    Signed-off-by: Alexei Starovoitov <[email protected]>

Signed-off-by: Jerome Marchand <[email protected]>

Author: jeromemarchand

tools/testing/selftests/bpf/veristat.c

@@ -1673,7 +1673,10 @@ static int parse_stat_value(const char *str, enum stat_id id, struct verif_stats
 	case TOTAL_STATES:
 	case PEAK_STATES:
 	case MAX_STATES_PER_INSN:
-	case MARK_READ_MAX_LEN: {
+	case MARK_READ_MAX_LEN:
+	case SIZE:
+	case JITED_SIZE:
+	case STACK: {
 		long val;
 		int err, n;
 
@@ -1686,6 +1689,9 @@ static int parse_stat_value(const char *str, enum stat_id id, struct verif_stats
 		st->stats[id] = val;
 		break;
 	}
+	case PROG_TYPE:
+	case ATTACH_TYPE:
+		break;
 	default:
 		fprintf(stderr, "Unrecognized stat #%d\n", id);
 		return -EINVAL;