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From: Antonio Quartulli <antonio@meshcoding.com>
To: Joe Perches <joe@perches.com>
Cc: Marek Lindner <mareklindner@neomailbox.ch>,
	Netdev <netdev@vger.kernel.org>,
	b.a.t.m.a.n@lists.open-mesh.org,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Ding Tianhong <dingtianhong@huawei.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: [B.A.T.M.A.N.] [PATCH 09/21] batman-adv: slight optimization of addr compare
Date: Mon, 23 Dec 2013 10:06:09 +0100	[thread overview]
Message-ID: <52B7FD01.9080006@meshcoding.com> (raw)
In-Reply-To: <1387789163.22671.62.camel@joe-AO722>

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On 23/12/13 09:59, Joe Perches wrote:
> On Mon, 2013-12-23 at 09:46 +0100, Antonio Quartulli wrote:
>> On 23/12/13 06:10, Ding Tianhong wrote:
>>
>> [...]
>>
>>> --- a/net/batman-adv/originator.c
>>> +++ b/net/batman-adv/originator.c
>>> @@ -41,7 +41,7 @@ int batadv_compare_orig(const struct hlist_node *node, const void *data2)
>>>  	const void *data1 = container_of(node, struct batadv_orig_node,
>>>  					 hash_entry);
>>>  
>>> -	return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0);
>>> +	return ether_addr_equal_unaligned(data1, data2) ? 1 : 0;
>>
>> ether_addr_equal_unaligned() returns a bool value which is implicitly
>> converted to 1 or 0: there is no need for the ternary if anymore.
> 
> Should these use batadv_compare_eth?
> 

That makes sense.

I was wondering whether we should get rid of batadv_compare_eth() at all
and always use ether_addr_equal_unaligned(). The "unaligned explanation"
is part of the name, so there is no need to use a commented helper anymore.

However, until that moment it is better to get stuck to
batadv_compare_eth().


Ding, can you also follow Joe's suggestion for this patch please?


Thanks,


-- 
Antonio Quartulli


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WARNING: multiple messages have this Message-ID (diff)
From: Antonio Quartulli <antonio@meshcoding.com>
To: Joe Perches <joe@perches.com>
Cc: Ding Tianhong <dingtianhong@huawei.com>,
	Marek Lindner <mareklindner@neomailbox.ch>,
	Simon Wunderlich <sw@simonwunderlich.de>,
	"David S. Miller" <davem@davemloft.net>,
	b.a.t.m.a.n@lists.open-mesh.org, Netdev <netdev@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 09/21] batman-adv: slight optimization of addr compare
Date: Mon, 23 Dec 2013 10:06:09 +0100	[thread overview]
Message-ID: <52B7FD01.9080006@meshcoding.com> (raw)
In-Reply-To: <1387789163.22671.62.camel@joe-AO722>

[-- Attachment #1: Type: text/plain, Size: 1207 bytes --]

On 23/12/13 09:59, Joe Perches wrote:
> On Mon, 2013-12-23 at 09:46 +0100, Antonio Quartulli wrote:
>> On 23/12/13 06:10, Ding Tianhong wrote:
>>
>> [...]
>>
>>> --- a/net/batman-adv/originator.c
>>> +++ b/net/batman-adv/originator.c
>>> @@ -41,7 +41,7 @@ int batadv_compare_orig(const struct hlist_node *node, const void *data2)
>>>  	const void *data1 = container_of(node, struct batadv_orig_node,
>>>  					 hash_entry);
>>>  
>>> -	return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0);
>>> +	return ether_addr_equal_unaligned(data1, data2) ? 1 : 0;
>>
>> ether_addr_equal_unaligned() returns a bool value which is implicitly
>> converted to 1 or 0: there is no need for the ternary if anymore.
> 
> Should these use batadv_compare_eth?
> 

That makes sense.

I was wondering whether we should get rid of batadv_compare_eth() at all
and always use ether_addr_equal_unaligned(). The "unaligned explanation"
is part of the name, so there is no need to use a commented helper anymore.

However, until that moment it is better to get stuck to
batadv_compare_eth().


Ding, can you also follow Joe's suggestion for this patch please?


Thanks,


-- 
Antonio Quartulli


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  reply	other threads:[~2013-12-23  9:06 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-23  5:10 [B.A.T.M.A.N.] [PATCH 09/21] batman-adv: slight optimization of addr compare Ding Tianhong
2013-12-23  5:10 ` Ding Tianhong
2013-12-23  8:46 ` [B.A.T.M.A.N.] " Antonio Quartulli
2013-12-23  8:46   ` Antonio Quartulli
2013-12-23  8:59   ` [B.A.T.M.A.N.] " Joe Perches
2013-12-23  8:59     ` Joe Perches
2013-12-23  9:06     ` Antonio Quartulli [this message]
2013-12-23  9:06       ` Antonio Quartulli
2013-12-23  9:12       ` [B.A.T.M.A.N.] " Ding Tianhong
2013-12-23  9:12         ` Ding Tianhong
2013-12-23  9:10     ` [B.A.T.M.A.N.] " Ding Tianhong
2013-12-23  9:10       ` Ding Tianhong
2013-12-23  9:09   ` [B.A.T.M.A.N.] " Ding Tianhong
2013-12-23  9:09     ` Ding Tianhong

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