PATH_MAX_LEN
ret = snprintf(desc->pin_path, PATH_MAX_LEN, "%s/%s", BPFFS_PIN_DIR,
char pin_path[PATH_MAX_LEN];
ret = snprintf(pin_path, PATH_MAX_LEN, "%s/%s", BPFFS_PIN_DIR,
char iter_pin_path[PATH_MAX_LEN];
ret = snprintf(iter_pin_path, PATH_MAX_LEN, "%s/iter", BPFFS_PIN_DIR);
char pin_path[PATH_MAX_LEN];