linux-kernel - Re: [Regression] USB tethering does not work anymore in 2.6.29-rc2 (rndis_host, does not receive DHCP offer anymore)

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Date:	Fri, 8 Apr 2011 05:31:20 +0200
From:	Gottfried Haider <gottfried.haider@...il.com>
To:	huajun li <huajun.li.lee@...il.com>
Cc:	Greg KH <greg@...ah.com>, linux-kernel@...r.kernel.org,
	linux-net@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [Regression] USB tethering does not work anymore in 2.6.29-rc2
 (rndis_host, does not receive DHCP offer anymore)

>   I found the new added mask code 'FLAG_POINTTOPOINT' overlapped
> 'FLAG_MULTI_PACKET' in    include/linux/usb/usbnet.h, this maybe
> caused logic issue in rx_process(). I create a patch for this, but
> have no such a device to test it, could you have a try? thanks.

Will try the patch tomorrow morning and report back.

Gottfried


> [PATCH]    Clean up mask code overlaps in driver_info of usbnet
>
> Signed-off-by:  Huajun Li <huajun.li.lee@...il.com>
> ---
>  include/linux/usb/usbnet.h |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
> index 3c7329b..0e18550 100644
> --- a/include/linux/usb/usbnet.h
> +++ b/include/linux/usb/usbnet.h
> @@ -103,8 +103,8 @@ struct driver_info {
>  * Indicates to usbnet, that USB driver accumulates multiple IP packets.
>  * Affects statistic (counters) and short packet handling.
>  */
> -#define FLAG_MULTI_PACKET      0x1000
> -#define FLAG_RX_ASSEMBLE       0x2000  /* rx packets may span >1 frames */
> +#define FLAG_MULTI_PACKET      0x2000
> +#define FLAG_RX_ASSEMBLE       0x4000  /* rx packets may span >1 frames */
>
>        /* init device ... can sleep, or cause probe() failure */
>        int     (*bind)(struct usbnet *, struct usb_interface *);
--
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