openwrt-xburst/target/linux/lantiq/patches/205-owrt-gpio-export.patch

--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -64,9 +64,9 @@ struct gpio_desc {
 #define GPIO_FLAGS_MASK		((1 << ID_SHIFT) - 1)
 #define GPIO_TRIGGER_MASK	(BIT(FLAG_TRIG_FALL) | BIT(FLAG_TRIG_RISE))
 
-#ifdef CONFIG_DEBUG_FS
+//#ifdef CONFIG_DEBUG_FS
 	const char		*label;
-#endif
+//#endif
 };
 static struct gpio_desc gpio_desc[ARCH_NR_GPIOS];
 
@@ -76,9 +76,9 @@ static DEFINE_IDR(dirent_idr);
 
 static inline void desc_set_label(struct gpio_desc *d, const char *label)
 {
-#ifdef CONFIG_DEBUG_FS
+//#ifdef CONFIG_DEBUG_FS
 	d->label = label;
-#endif
+//#endif
 }
 
 /* Warn when drivers omit gpio_request() calls -- legal but ill-advised
@@ -727,7 +727,8 @@ int gpio_export(unsigned gpio, bool dire
 
 	if (desc->chip->names && desc->chip->names[gpio - desc->chip->base])
 		ioname = desc->chip->names[gpio - desc->chip->base];
-
+	else
+		ioname = gpio_desc[gpio].label;
 	if (status == 0) {
 		struct device	*dev;
 
@@ -1347,11 +1348,11 @@ const char *gpiochip_is_requested(struct
 		return NULL;
 	if (test_bit(FLAG_REQUESTED, &gpio_desc[gpio].flags) == 0)
 		return NULL;
-#ifdef CONFIG_DEBUG_FS
+//#ifdef CONFIG_DEBUG_FS
 	return gpio_desc[gpio].label;
-#else
-	return "?";
-#endif
+//#else
+//	return "?";
+//#endif
 }
 EXPORT_SYMBOL_GPL(gpiochip_is_requested);