netdev - ipheth problem in 2.6.36 and 2.6.37

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Message-ID: <20110129174252.GA12309@zgred.localnet>
Date:	Sat, 29 Jan 2011 18:42:52 +0100
From:	Piotr Isajew <pki@...com.pl>
To:	diego@...gio.com
Cc:	gregkh@...e.de, netdev@...r.kernel.org
Subject: ipheth problem in 2.6.36 and 2.6.37

Hi,

It looks for me that there is something wrong with ipheth
driver. In 2.6.35 it worked fine. However it doesn't work after
upgrade to 2.6.36 or 2.6.37:

Driver detects the iPhone and attaches it as eth interface:

[856636.512167] usb 1-1: Product: iPhone
[856636.512172] usb 1-1: Manufacturer: Apple Inc.
[856636.512178] usb 1-1: SerialNumber: 48......
[856636.512647] usb 1-1: usb_probe_device
[856636.512658] usb 1-1: configuration #1 chosen from 4 choices
[856636.513769] usb 1-1: adding 1-1:1.0 (config #1, interface 0)
[856636.514051] drivers/usb/core/inode.c: creating file '014'
[856636.514130] hub 1-0:1.0: state 7 ports 6 chg 0000 evt 0002
[856636.645496] usb 1-1: unregistering interface 1-1:1.0
[856636.645865] usb 1-1: usb_disable_device nuking non-ep0 URBs
[856636.648389] usb 1-1: adding 1-1:4.0 (config #4, interface 0)
[856636.648715] usb 1-1: adding 1-1:4.1 (config #4, interface 1)
[856636.648956] usb 1-1: adding 1-1:4.2 (config #4, interface 2)
[856637.488748] ipheth 1-1:4.2: usb_probe_interface
[856637.488760] ipheth 1-1:4.2: usb_probe_interface - got id
[856637.513964] ipheth 1-1:4.2: Apple iPhone USB Ethernet device attached
[856637.515377] usbcore: registered new interface driver ipheth


I'm sure that device pairing goes well -- bringing eth interface
"up" activates Internet modem mode on the phone. However it's not
possible to get an IP address for the interface. It's supposed to
be assigned by DHCP, but requests time out.


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