linux-kernel - [54/89] USB: option Add blacklist for ZTE K3765-Z (19d2:2002)

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Date:	Wed, 15 Jun 2011 17:00:17 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Torsten Hilbrich <torsten.hilbrich@...unet.com>
Subject: [54/89] USB: option Add blacklist for ZTE K3765-Z (19d2:2002)

2.6.39-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Torsten Hilbrich <torsten.hilbrich@...unet.com>

commit 7e8e62e4a5d26e4cb45f25dddd093837d75616c2 upstream.

The funtion option_send_status times out when sending USB messages
to the interfaces 0, 1, and 2 of this UMTS stick. This results in a
5s timeout in the function causing other tty operations to feel very
sluggish.

This patch adds a blacklist entry for these 3 interfaces on the ZTE
K3765-Z device.

I was also able to reproduce the problem with v2.6.38 and v2.6.39.

This is very similar to a problem fixed in

commit 7a89e4cb9cdaba92f5fbc509945cf4e3c48db4e2
Author: Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
Date:   Wed Mar 9 09:19:48 2011 +0000

    USB: serial: option: Apply OPTION_BLACKLIST_SENDSETUP also for ZTE MF626

Signed-off-by: Torsten Hilbrich <torsten.hilbrich@...unet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/usb/serial/option.c |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -443,6 +443,13 @@ static const struct option_blacklist_inf
 	.reason = OPTION_BLACKLIST_SENDSETUP
 };
 
+static const u8 zte_k3765_z_no_sendsetup[] = { 0, 1, 2 };
+static const struct option_blacklist_info zte_k3765_z_blacklist = {
+	.infolen = ARRAY_SIZE(zte_k3765_z_no_sendsetup),
+	.ifaceinfo = zte_k3765_z_no_sendsetup,
+	.reason = OPTION_BLACKLIST_SENDSETUP
+};
+
 static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -927,7 +934,8 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0073, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0130, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0141, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2002, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2002, 0xff,
+	  0xff, 0xff), .driver_info = (kernel_ulong_t)&zte_k3765_z_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2003, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710, 0xff, 0xff, 0xff) },


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