gpiod_get_label
label = gpiod_get_label(desc);
label = kstrdup(gpiod_get_label(desc), GFP_KERNEL);
gpio, desc->name ?: "", gpiod_get_label(desc),
const char *gpiod_get_label(struct gpio_desc *desc);
gpiod_get_label(desc) ?: "?", ##__VA_ARGS__); \