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From: Greg KH <greg@kroah.com>
To: Mark Lord <mlord@pobox.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>,
	David Miller <davem@davemloft.net>,
	hayeswang@realtek.com, netdev@vger.kernel.org,
	nic_swsd@realtek.com, linux-kernel@vger.kernel.org,
	linux-usb@vger.kernel.org
Subject: Re: [PATCH net 1/2] r8152: fix the sw rx checksum is unavailable
Date: Fri, 25 Nov 2016 15:24:16 +0100	[thread overview]
Message-ID: <20161125142416.GB22642@kroah.com> (raw)
In-Reply-To: <1816ec7e-2733-f4ba-5d30-29dbabd20aad@pobox.com>

On Fri, Nov 25, 2016 at 07:49:35AM -0500, Mark Lord wrote:
> On 16-11-25 04:53 AM, Greg KH wrote:
> > On Thu, Nov 24, 2016 at 10:49:33PM -0500, Mark Lord wrote:
> >> There is no possibility for them to be used for anything other than
> >> USB receive buffers, for this driver only.  Nothing in the driver
> >> or kernel ever writes to those buffers after initial allocation,
> >> and only the driver and USB host controller ever have pointers to the buffers.
> > 
> > You really are going to have to break out that USB monitor to verify
> > that this is the data coming across the wire.
> 
> Not sure why, because there really is no other way for the data to
> appear where it does at the beginning of that URB buffer.

Broken USB host controller driver, or the device really is sending that
data to the host.  It's either one or the other, and the only way you
can rule one of them out is to look at the data on the wire.

best of luck,

greg k-h

  reply	other threads:[~2016-11-25 14:36 UTC|newest]

Thread overview: 80+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-11  7:15 [PATCH net 0/2] r8152: rx patches Hayes Wang
2016-11-11  7:15 ` [PATCH net 1/2] r8152: fix the sw rx checksum is unavailable Hayes Wang
2016-11-17  3:36   ` Hayes Wang
2016-11-17 14:14     ` Mark Lord
2016-11-17 14:25       ` Mark Lord
     [not found]     ` <d683c019-4e0f-6fe6-368c-c4fc86c72fe6@pobox.com>
2016-11-18  7:57       ` Hayes Wang
2016-11-18 12:03         ` Mark Lord
2016-11-22 13:12           ` Mark Lord
2016-11-23  3:52           ` Hayes Wang
2016-11-23 13:41             ` Mark Lord
2016-11-23 15:12               ` Hayes Wang
2016-11-23 19:29                 ` Mark Lord
2016-11-24  3:24                   ` Hayes Wang
2016-11-24 12:31                   ` Mark Lord
2016-11-24 13:26                     ` Hayes Wang
2016-11-24 15:24                       ` Mark Lord
2016-11-25  6:11                         ` Hayes Wang
2016-11-25 12:36                           ` Mark Lord
2016-11-24 16:21                       ` David Miller
2016-11-24 16:43                         ` Mark Lord
2016-11-24 17:00                           ` Mark Lord
2016-11-24 17:13                             ` David Miller
2016-11-24 17:11                           ` David Miller
2016-11-24 18:34                             ` Mark Lord
2016-11-24 18:49                               ` Mark Lord
2016-11-24 19:00                               ` Greg KH
2016-11-24 19:10                                 ` Mark Lord
2016-11-24 19:17                                   ` Greg KH
2016-11-25  9:52                                   ` Hayes Wang
2016-11-25 13:32                                     ` Mark Lord
2016-11-25  0:27                               ` Francois Romieu
2016-11-25  3:49                                 ` Mark Lord
2016-11-25  9:53                                   ` Greg KH
2016-11-25 12:34                                     ` Mark Lord
2016-11-25 12:41                                       ` Mark Lord
2016-11-25 14:22                                         ` Greg KH
2016-11-25 14:35                                           ` Mark Lord
2016-11-25 12:49                                     ` Mark Lord
2016-11-25 14:24                                       ` Greg KH [this message]
2016-11-25 16:58                                       ` David Miller
2016-11-30 11:58                                         ` Hayes Wang
2016-12-09  3:23                                           ` Hayes Wang
2016-12-09 13:05                                             ` Mark Lord
2017-01-01  0:07                                           ` Ansis Atteka
2017-01-03  0:40                                             ` Ansis Atteka
2017-01-03 13:19                                               ` Mark Lord
2017-01-09  7:58                                               ` Hayes Wang
2019-01-05 14:14                                             ` r8152: data corruption in various scenarios Mark Lord
2019-01-05 14:22                                               ` Mark Lord
2019-01-06 19:14                                               ` Kai Heng Feng
2019-01-06 21:13                                                 ` Mark Lord
2019-01-06 21:16                                                   ` Mark Lord
2019-01-07  3:53                                                     ` Hayes Wang
2019-01-07 16:01                                                       ` Mario.Limonciello
2019-01-07 18:06                                                         ` Mark Lord
2019-01-07 18:27                                                           ` Mario.Limonciello
2019-01-07 19:24                                                             ` Mark Lord
2019-01-07  4:09                                                     ` Kai Heng Feng
2019-01-07  4:13                                                       ` Mark Lord
2019-01-07  6:46                                                         ` Kai Heng Feng
2019-01-07  7:01                                                           ` Mark Lord
2016-11-24 18:42                           ` [PATCH net 1/2] r8152: fix the sw rx checksum is unavailable Greg KH
2016-11-24 18:58                             ` Mark Lord
2016-11-25  6:31                           ` Hayes Wang
2016-11-25  6:51                             ` Hayes Wang
2016-11-25 12:35                               ` Mark Lord
2016-11-24 16:19                     ` David Miller
2016-11-24 12:37               ` Hayes Wang
2016-11-11  7:15 ` [PATCH net 2/2] r8152: rx descriptor check Hayes Wang
2016-11-11 12:13   ` Francois Romieu
2016-11-12 13:21     ` Mark Lord
2016-11-14  6:43     ` Hayes Wang
2016-11-15  1:10       ` Francois Romieu
2016-11-17  3:05         ` Hayes Wang
2016-11-13 17:39   ` David Miller
2016-11-13 20:34     ` Mark Lord
2016-11-13 20:38       ` Mark Lord
2016-11-14  7:23       ` Hayes Wang
2016-11-14 17:27         ` David Miller
2016-11-14  7:03     ` Hayes Wang

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