From: Dmitry Torokhov <dtor@vmware.com>
Date: Sat, 19 Mar 2011 04:29:01 +0000 (-0700)
Subject: USB: fix formatting of SuperSpeed endpoints in /proc/bus/usb/devices
X-Git-Tag: firefly_0821_release~10186^2~174
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b90adfeb126662df944e7fdfcd732ab10df6454c;p=firefly-linux-kernel-4.4.55.git

USB: fix formatting of SuperSpeed endpoints in /proc/bus/usb/devices

commit 2868a2b1ba8f9c7f6c4170519ebb6c62934df70e upstream.

Isochronous and interrupt SuperSpeed endpoints use the same mechanisms
for decoding bInterval values as HighSpeed ones so adjust the code
accordingly.

Also bandwidth reservation for SuperSpeed matches highspeed, not
low/full speed.

Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 355dffcc23b0..2ce5963f273e 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -211,7 +211,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
 		break;
 	case USB_ENDPOINT_XFER_INT:
 		type = "Int.";
-		if (speed == USB_SPEED_HIGH)
+		if (speed == USB_SPEED_HIGH || speed == USB_SPEED_SUPER)
 			interval = 1 << (desc->bInterval - 1);
 		else
 			interval = desc->bInterval;
@@ -219,7 +219,8 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
 	default:	/* "can't happen" */
 		return start;
 	}
-	interval *= (speed == USB_SPEED_HIGH) ? 125 : 1000;
+	interval *= (speed == USB_SPEED_HIGH ||
+		     speed == USB_SPEED_SUPER) ? 125 : 1000;
 	if (interval % 1000)
 		unit = 'u';
 	else {
@@ -529,8 +530,9 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes,
 	if (level == 0) {
 		int	max;
 
-		/* high speed reserves 80%, full/low reserves 90% */
-		if (usbdev->speed == USB_SPEED_HIGH)
+		/* super/high speed reserves 80%, full/low reserves 90% */
+		if (usbdev->speed == USB_SPEED_HIGH ||
+		    usbdev->speed == USB_SPEED_SUPER)
 			max = 800;
 		else
 			max = FRAME_TIME_MAX_USECS_ALLOC;