linux-kernel - Re: [PATCH 02/18] net: use wrapper functions of net

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Date:	Wed, 16 Oct 2013 11:24:22 +0800
From:	Kefeng Wang <wangkefeng.wang@...wei.com>
To:	Joe Perches <joe@...ches.com>
CC:	<linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	Pablo Neira Ayuso <pablo@...filter.org>,
	Stephen Hemminger <stephen@...workplumber.org>,
	Johannes Berg <johannes@...solutions.net>,
	"John W. Linville" <linville@...driver.com>,
	Stanislaw Gruszka <sgruszka@...hat.com>,
	Johannes Berg <johannes.berg@...el.com>,
	"Francois Romieu" <romieu@...zoreil.com>,
	Ben Hutchings <bhutchings@...arflare.com>,
	Chas Williams <chas@....nrl.navy.mil>,
	Marc Kleine-Budde <mkl@...gutronix.de>,
	Samuel Ortiz <samuel@...tiz.org>,
	Paul Mackerras <paulus@...ba.org>,
	Oliver Neukum <oneukum@...e.de>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	David Vrabel <david.vrabel@...rix.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	"Michael S. Tsirkin" <mst@...hat.com>, <netfilter@...r.kernel.org>,
	<netdev@...r.kernel.org>, <linux-wireless@...r.kernel.org>,
	<guohanjun@...wei.com>
Subject: Re: [PATCH 02/18] net: use wrapper functions of net_ratelimit() to
 simplify code

Thanks for your reply.

On 10/16 0:24, Joe Perches wrote:
> On Tue, 2013-10-15 at 19:44 +0800, Kefeng Wang wrote:
>> Wrapper functions net_ratelimited_function() and net_XXX_ratelimited()
>> are called to simplify code.
> []
>> diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
> []
>> @@ -465,10 +465,8 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
>>  	if (likely(fdb)) {
>>  		/* attempt to update an entry for a local interface */
>>  		if (unlikely(fdb->is_local)) {
>> -			if (net_ratelimit())
>> -				br_warn(br, "received packet on %s with "
>> -					"own address as source address\n",
>> -					source->dev->name);
>> +			net_ratelimited_function(br_warn, br, "received packet on %s "
>> +				"with own address as source address\n", source->dev->name);
> 
> Hello Kefeng.
> 
> When these types of lines are changed, please coalesce the
> fragmented format pieces into a single string.
> 
> It makes grep a bit easier and 80 columns limits don't
> apply to formats.

Got it, I will coalesce them, but 80 columns limits will be
broken.

> I think using net_ratelimited_function is not particularly
> clarifying here.
> 
> Maybe net_ratelimited_function should be removed instead
> of its use sites expanded.
> 
> Perhaps adding macros like #define br_warn_ratelimited()
> would be better.

yes, I found dev_emerg_ratelimited already exists. I should
use them and will add some similar mcaros.

> This comment applies to the whole series.
> 
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