[LTP] [PATCH v5 3/7] lib: Add support for max_kver to struct tst_test and tst_fs

[Cyril Hrubis]

Hi!
> +/*
> + * Check for the maximal required kernel version.
> + *
> + * return: true if the kernel version is low enough, false otherwise.
> + */
> +static bool check_max_kver(const char *max_kver, const int brk_nosupp)
> +{
> +	char *msg;
> +	int dots, i, v1, v2, v3;
> +
> +	tst_parse_kver(max_kver, &v1, &v2, &v3);
> +
> +	for (i = 0, dots = 0; max_kver[i]; i++)
> +		dots += (max_kver[i] == '.');
> +
> +	/*
> +	 * For mainline kernel release without patch level (single dot e.g. "7.1")
> +	 * ignore v3 (the sublevel): 7.1.x is always ok.
> +	 * Do *not* ignore v3 on stable kernel release (2 dots, e.g. 7.1.5).
> +	 */
> +	if (tst_kvercmp(v1, v2, v3) > (dots == 1 ? 1023 : 0)) {

Uff, this is quite ugly. What exactly are we trying to do?


Also we are missing wiring for the shell test executor:

iff --git a/testcases/lib/tst_run_shell.c b/testcases/lib/tst_run_shell.c
index 2778fb6d5..263a319bc 100644
--- a/testcases/lib/tst_run_shell.c
+++ b/testcases/lib/tst_run_shell.c
@@ -57,6 +57,7 @@ enum test_attr_ids {
        DEV_MIN_SIZE,
        FILESYSTEMS,
        FORMAT_DEVICE,
+       MAX_KVER,
        MIN_CPUS,
        MIN_MEM_AVAIL,
        MIN_KVER,
@@ -91,6 +92,7 @@ static ujson_obj_attr test_attrs[] = {
        UJSON_OBJ_ATTR_IDX(DEV_MIN_SIZE, "dev_min_size", UJSON_INT),
        UJSON_OBJ_ATTR_IDX(FILESYSTEMS, "filesystems", UJSON_ARR),
        UJSON_OBJ_ATTR_IDX(FORMAT_DEVICE, "format_device", UJSON_BOOL),
+       UJSON_OBJ_ATTR_IDX(MAX_KVER, "max_kver", UJSON_STR),
        UJSON_OBJ_ATTR_IDX(MIN_CPUS, "min_cpus", UJSON_INT),
        UJSON_OBJ_ATTR_IDX(MIN_MEM_AVAIL, "min_mem_avail", UJSON_INT),
        UJSON_OBJ_ATTR_IDX(MIN_KVER, "min_kver", UJSON_STR),
@@ -462,6 +464,9 @@ static void parse_metadata(void)
                case FORMAT_DEVICE:
                        test.format_device = val.val_bool;
                break;
+               case MAX_KVER:
+                       test.max_kver = strdup(val.val_str);
+               break;
                case MIN_CPUS:
                        if (val.val_int <= 0)
                                ujson_err(&reader, "Minimal number of cpus must be > 0");



-- 
Cyril Hrubis
chrubis@suse.cz