From: Wolfgang Grandegger <wg-5Yr1BZd7O62+XT7JhA+gdA@public•gmane.org>
To: Marc Kleine-Budde <mkl-bIcnvbaLZ9MEGnE8C9+IrQ@public•gmane.org>
Cc: socketcan-core-0fE9KPoRgkgATYTw5x5z8w@public•gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public•gmane.org
Subject: Re: [PATCH] socketcan: add a driver for FlexCAN controllers.
Date: Fri, 18 Jun 2010 12:33:41 +0200 [thread overview]
Message-ID: <4C1B4B85.3010905@grandegger.com> (raw)
In-Reply-To: <4C1B4796.3060506-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
On 06/18/2010 12:16 PM, Marc Kleine-Budde wrote:
> Wolfgang Grandegger wrote:
>> Hi Hans-Jürgen,
>>
>> On 06/17/2010 12:52 PM, Hans J. Koch wrote:
>>> This adds a driver for FlexCAN based CAN controllers,
>>> e.g. found in Freescale i.MX35 SoCs.
>>>
>>> The original version of this driver was posted by Sascha Hauer in July 2009:
>>> http://kerneltrap.org/mailarchive/linux-netdev/2009/7/29/6251621
>>>
>>> I took this version, added NAPI support, and fixed some problems found
>>> during testing. Well, here is the result. Please review.
>>
>> I briefly browsed the patch and various bits and pieces are missing or
>> not correctly implemented. Marc already pointed out a few of them:
>>
>> - I do not find can_put/get_echo_skb functions in the code. How is
>> IFF_ECHO supposed to work?
>
> the driver uses hardware loopback
OK, then
dev = alloc_candev(sizeof(struct flexcan_priv), 0);
should be used (and TX_ECHO_SKB_MAX removed) in Hans-Jürgens driver.
>
>> - Support for CAN_CTRLMODE_BERR_REPORTING and do_get_berr_counter()
>> seems to be missing.
>>
>> - Make use of alloc_can_skb() and alloc_can_err_skb().
>
> the last two points are already addressed in my version of the driver.
I do not see support for CAN_CTRLMODE_BERR_REPORTING in your driver
(which has nothing to do with do_get_berr_counter).
Wolfgang.
next prev parent reply other threads:[~2010-06-18 10:33 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-17 10:52 [PATCH] socketcan: add a driver for FlexCAN controllers Hans J. Koch
[not found] ` <20100617105201.GA2015-hikPBsva6T+Nj9Bq2fkWzw@public.gmane.org>
2010-06-17 14:10 ` Marc Kleine-Budde
2010-06-18 10:04 ` Wolfgang Grandegger
2010-06-18 9:47 ` Wolfgang Grandegger
[not found] ` <4C1B4098.3090800-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
2010-06-18 10:16 ` Marc Kleine-Budde
[not found] ` <4C1B4796.3060506-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2010-06-18 10:33 ` Wolfgang Grandegger [this message]
[not found] ` <4C1B4B85.3010905-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
2010-06-18 10:44 ` Marc Kleine-Budde
[not found] ` <4C1B4DF0.2090103-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2010-06-18 11:04 ` Wolfgang Grandegger
[not found] ` <4C1B52A7.3060607-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
2010-06-18 11:21 ` Marc Kleine-Budde
[not found] ` <4C1B56BC.1050303-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2010-06-18 11:53 ` Wolfgang Grandegger
[not found] ` <4C1B5E1F.5080702-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
2010-06-18 12:30 ` Wolfgang Grandegger
2010-06-18 12:00 ` Hans J. Koch
[not found] ` <20100618120044.GB2007-hikPBsva6T+Nj9Bq2fkWzw@public.gmane.org>
2010-06-18 12:19 ` Wolfgang Grandegger
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