netdev - Re: [PATCH net-next 4/4] ipv6: coding style

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Date:	Thu, 04 Sep 2014 08:53:27 +0100
From:	Ian Morris <ipm@...rality.org.uk>
To:	Yuval Mintz <Yuval.Mintz@...gic.com>,
	YOSHIFUJI Hideaki/吉藤英明 
	<hideaki.yoshifuji@...aclelinux.com>,
	netdev <netdev@...r.kernel.org>
CC:	YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
Subject: Re: [PATCH net-next 4/4] ipv6: coding style - cleanse bracing

On 03/09/14 08:52, Yuval Mintz wrote:
>> Hi,
>>
>> Ian Morris wrote:
>>> Tidy up braces in a few places (mainly if statements):
>>> * remove unnecessary braces
>>> * add braces for single line statements where part of an "else" where
>>> the other branch has braces
>> Hmm, I am not for this change.
>>
>> If "if" (or "else") statement occupies multiple lines, I want to see braces even if it
>> contains a single statement.
>> On the other hand, especiallly if the statement occupiles only one line (and the
>> logic do not require those braces), no braces.
>>
>> e.g. 1
>>     if (cond)
>>             statement();
>>     else {
>>             statement2(argument,
>>                        argument2);
>>     }
> I was under the impression the coding style require matching curly braces on all
> if and else clauses, e.g., in the previous example I would have expected the `if' to
> have curly braces since its else block has them, regardless of whether its
> statement-block has more than a single line.
Indeed, this was my understanding which is why the patch is mostly the
way it is. I suppose if netdev can have its own approach for comments,
there's no reason not to have a netdev approach for if...else patterns
also but presently things are a little inconsistent in the ipv6 code
unfortunately so some work will be required either way.
>> e.g. 2
>>     if (cond) {
>>             if (cond2)
>>                     statement();
>>     } else
>>             statement2(argument, argument2);
>>
>> e.g. 3
>>     if (cond) {
>>             /* comment */
>>             statement();
>>     }
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