Patch "usb: dwc3: fix wrong bit mask in dwc3_event_devt" has been added to the 3.10-stable tree

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This is a note to let you know that I've just added the patch titled

    usb: dwc3: fix wrong bit mask in dwc3_event_devt

to the 3.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     usb-dwc3-fix-wrong-bit-mask-in-dwc3_event_devt.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 06f9b6e59661cee510b04513b13ea7927727d758 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@xxxxxxx>
Date: Tue, 7 Jan 2014 17:45:50 +0800
Subject: usb: dwc3: fix wrong bit mask in dwc3_event_devt

From: Huang Rui <ray.huang@xxxxxxx>

commit 06f9b6e59661cee510b04513b13ea7927727d758 upstream.

Around DWC USB3 2.30a release another bit has been added to the
Device-Specific Event (DEVT) Event Information (EvtInfo) bitfield.

Because of that, what used to be 8 bits long, has become 9 bits long.

Per dwc3 2.30a+ spec in the Device-Specific Event (DEVT), the field of
Event Information Bits(EvtInfo) uses [24:16] bits, and it has 9 bits
not 8 bits. And the following reserved field uses [31:25] bits not
[31:24] bits, and it has 7 bits.

So in dwc3_event_devt, the bit mask should be:
event_info	[24:16]		9 bits
reserved31_25	[31:25]		7 bits

This patch makes sure that newer core releases will work fine with
Linux and that we will decode the event information properly on new
core releases.

[ balbi@xxxxxx : improve commit log a bit ]

Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/usb/dwc3/core.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -836,15 +836,15 @@ struct dwc3_event_depevt {
  *	12	- VndrDevTstRcved
  * @reserved15_12: Reserved, not used
  * @event_info: Information about this event
- * @reserved31_24: Reserved, not used
+ * @reserved31_25: Reserved, not used
  */
 struct dwc3_event_devt {
 	u32	one_bit:1;
 	u32	device_event:7;
 	u32	type:4;
 	u32	reserved15_12:4;
-	u32	event_info:8;
-	u32	reserved31_24:8;
+	u32	event_info:9;
+	u32	reserved31_25:7;
 } __packed;
 
 /**


Patches currently in stable-queue which might be from ray.huang@xxxxxxx are

queue-3.10/usb-dwc3-fix-wrong-bit-mask-in-dwc3_event_devt.patch
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