---

yaml
---
r: 28358
b: refs/heads/master
c: 1fbe75e
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 955a260829b5848fa90721678bab003234c93356
+refs/heads/master: 1fbe75e12f0dd567c86533e13ba2605f3ecad2e1

trunk/drivers/usb/core/hub.c

@@ -1176,6 +1176,7 @@ static int choose_configuration(struct usb_device *udev)
 {
 	int i;
 	int num_configs;
+	int insufficient_power = 0;
 	struct usb_host_config *c, *best;
 
 	best = NULL;
@@ -1228,8 +1229,10 @@ static int choose_configuration(struct usb_device *udev)
 		 */
 
 		/* Rule out configs that draw too much bus current */
-		if (c->desc.bMaxPower * 2 > udev->bus_mA)
+		if (c->desc.bMaxPower * 2 > udev->bus_mA) {
+			insufficient_power++;
 			continue;
+		}
 
 		/* If the first config's first interface is COMM/2/0xff
 		 * (MSFT RNDIS), rule it out unless Linux has host-side
@@ -1263,6 +1266,11 @@ static int choose_configuration(struct usb_device *udev)
 			best = c;
 	}
 
+	if (insufficient_power > 0)
+		dev_info(&udev->dev, "rejected %d configuration%s "
+			"due to insufficient available bus power\n",
+			insufficient_power, plural(insufficient_power));
+
 	if (best) {
 		i = best->desc.bConfigurationValue;
 		dev_info(&udev->dev,