netdev - Re: [PATCH RFC v2 1/2] can: fix multiple delivery of a single CAN frame for overlapping CAN filters

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Message-ID: <5519273F.6080209@pengutronix.de>
Date:	Mon, 30 Mar 2015 12:36:47 +0200
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	Oliver Hartkopp <socketcan@...tkopp.net>, linux-can@...r.kernel.org
CC:	netdev@...r.kernel.org
Subject: Re: [PATCH RFC v2 1/2] can: fix multiple delivery of a single
 CAN frame for overlapping CAN filters

On 03/30/2015 12:29 PM, Oliver Hartkopp wrote:
> On 30.03.2015 11:50, Marc Kleine-Budde wrote:
> 
>>>   	can_err_mask_t err_mask;
>>> +	struct sk_buff __percpu **uniq_skb;
>>> +	ktime_t __percpu *uniq_tstamp;
>>
>> What about creating a struct to hold the ktime_t and the skb? BTW: the
>> pointer to the skb can be marked as const.
> 
> Don't think so.
> 
> The pointer points to some allocated memory.

Yes, but the allocated memory points to a skb which is not modified, so
it's a:

struct sk_buff __percpu * const *uniq_skb;

Marc

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