USB: option Add blacklist for ZTE K3765-Z (19d2:2002)

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@canonical.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@secunet.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 2c10e29..f7583f8 100644 (file)
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -443,6 +443,13 @@ static const struct option_blacklist_info alcatel_x200_blacklist = {
        .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_ids[] = {
        { 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) },