linux-kernel - Re: [PATCH v2 net-next 1/4] net: implement support for low latency socket polling

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Message-Id: <20130520.123440.567878984450788905.davem@davemloft.net>
Date:	Mon, 20 May 2013 12:34:40 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eliezer.tamir@...ux.intel.com
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	jesse.brandeburg@...el.com, donald.c.skidmore@...el.com,
	e1000-devel@...ts.sourceforge.net, willemb@...gle.com,
	andi@...stfloor.org, hpa@...or.com, eliezer@...ir.org.il
Subject: Re: [PATCH v2 net-next 1/4] net: implement support for low latency
 socket polling

From: Eliezer Tamir <eliezer.tamir@...ux.intel.com>
Date: Mon, 20 May 2013 12:39:59 +0300

> On 20/05/2013 10:54, David Miller wrote:
>> From: Eliezer Tamir <eliezer.tamir@...ux.intel.com>
>> Date: Sun, 19 May 2013 13:25:33 +0300
>>
>>> +#else /* CONFIG_INET_LL_RX_FLUSH */
>>> +
>>> +#define sk_valid_ll(sk) 0
>>> +#define sk_poll_ll(sk, nonblock) do {} while (0)
>>> +#define skb_mark_ll(napi, skb) do {} while (0)
>>> +#define sk_mark_ll(sk, skb) do {} while (0)
>>
>> Make these inline functions too, so that even if
>> CONFIG_INET_LL_RX_POLL is disabled, the arguments and return values
>> are still properly type checked.
> 
> Is this what you had in mind?
> 
> static inline bool sk_valid_ll(struct sock *sk)

Yes.
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