That's what the blacklist is for...
Signed-off-by: Dan Williams <dcbw@xxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxx>
---
drivers/usb/serial/option.c | 73 ++++++++++++++++++++++++-------------------
1 files changed, 41 insertions(+), 32 deletions(-)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index c3b458f..3f6a913 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -443,6 +443,10 @@ static const struct option_blacklist_info zte_k3765_z_blacklist = {
.sendsetup = BIT(0) | BIT(1) | BIT(2),
};
+static const struct option_blacklist_info net_intf1_blacklist = {
+ .reserved = BIT(1),
+};
+
static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -540,8 +544,10 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) },
- { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4505, 0xff, 0xff, 0xff) },
- { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3765, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4505, 0xff, 0xff, 0xff),
+ .driver_info = (kernel_ulong_t) &net_intf1_blacklist },
+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3765, 0xff, 0xff, 0xff),
+ .driver_info = (kernel_ulong_t) &net_intf1_blacklist },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_ETS1220, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E14AC, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3770, 0xff, 0x02, 0x31) },
@@ -1111,10 +1117,35 @@ static void __exit option_exit(void)
module_init(option_init);
module_exit(option_exit);
+static bool is_blacklisted(const u8 ifnum, enum option_blacklist_reason reason,
+ const struct option_blacklist_info *blacklist)
+{
+ unsigned long num;
+ const unsigned long *intf_list;
+
+ if (blacklist) {
+ if (reason == OPTION_BLACKLIST_SENDSETUP)
+ intf_list = &blacklist->sendsetup;
+ else if (reason == OPTION_BLACKLIST_RESERVED_IF)
+ intf_list = &blacklist->reserved;
+ else {
+ BUG_ON(reason);
+ return false;
+ }
+
+ for_each_set_bit(num, intf_list, MAX_BL_NUM + 1) {
+ if (num == ifnum)
+ return true;
+ }
+ }
+ return false;
+}
+
static int option_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
struct usb_wwan_intf_private *data;
+
/* D-Link DWM 652 still exposes CD-Rom emulation interface in modem mode */
if (serial->dev->descriptor.idVendor == DLINK_VENDOR_ID &&
serial->dev->descriptor.idProduct == DLINK_PRODUCT_DWM_652 &&
@@ -1127,11 +1158,14 @@ static int option_probe(struct usb_serial *serial,
serial->interface->cur_altsetting->desc.bInterfaceClass != 0xff)
return -ENODEV;
- /* Don't bind network interfaces on Huawei K3765 & K4505 */
- if (serial->dev->descriptor.idVendor == HUAWEI_VENDOR_ID &&
- (serial->dev->descriptor.idProduct == HUAWEI_PRODUCT_K3765 ||
- serial->dev->descriptor.idProduct == HUAWEI_PRODUCT_K4505) &&
- serial->interface->cur_altsetting->desc.bInterfaceNumber == 1)
+ /* Don't bind reserved interfaces (like network ones) which often have
+ * the same class/subclass/protocol as the serial interfaces. Look at
+ * the Windows driver .INF files for reserved interface numbers.
+ */
+ if (is_blacklisted(
+ serial->interface->cur_altsetting->desc.bInterfaceNumber,
+ OPTION_BLACKLIST_RESERVED_IF,
+ (const struct option_blacklist_info *) id->driver_info))
return -ENODEV;
/* Don't bind network interface on Samsung GT-B3730, it is handled by a separate module */
@@ -1141,7 +1175,6 @@ static int option_probe(struct usb_serial *serial,
return -ENODEV;
data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private), GFP_KERNEL);
-
if (!data)
return -ENOMEM;
data->send_setup = option_send_setup;
@@ -1150,30 +1183,6 @@ static int option_probe(struct usb_serial *serial,
return 0;
}
-static bool is_blacklisted(const u8 ifnum, enum option_blacklist_reason reason,
- const struct option_blacklist_info *blacklist)
-{
- unsigned long num;
- const unsigned long *intf_list;
-
- if (blacklist) {
- if (reason == OPTION_BLACKLIST_SENDSETUP)
- intf_list = &blacklist->sendsetup;
- else if (reason == OPTION_BLACKLIST_RESERVED_IF)
- intf_list = &blacklist->reserved;
- else {
- BUG_ON(reason);
- return false;
- }
-
- for_each_set_bit(num, intf_list, MAX_BL_NUM + 1) {
- if (num == ifnum)
- return true;
- }
- }
- return false;
-}
-
static void option_instat_callback(struct urb *urb)
{
int err;
--
1.7.6
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