linux-kernel - Re: [PATCH] decnet: remove macro-local declarations

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Message-Id: <20151105.151320.1646543343654766675.davem@davemloft.net>
Date:	Thu, 05 Nov 2015 15:13:20 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	julia.lawall@...6.fr
Cc:	kernel-janitors@...r.kernel.org,
	linux-decnet-user@...ts.sourceforge.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, lkp@...el.com,
	roopa@...ulusnetworks.com, rshearma@...cade.com,
	ebiederm@...ssion.com
Subject: Re: [PATCH] decnet: remove macro-local declarations

From: Julia Lawall <julia.lawall@...6.fr>
Date: Thu, 5 Nov 2015 21:08:17 +0100 (CET)

> On Thu, 5 Nov 2015, David Miller wrote:
> 
>> From: Julia Lawall <Julia.Lawall@...6.fr>
>> Date: Thu,  5 Nov 2015 11:18:16 +0100
>> 
>> > Move the variable declarations from the for_nexthops macro to the
>> > surrounding context, so that it is clear where these variables are
>> > declared.  This also makes it possible to remove the endfor_nexthops macro.
>> > 
>> > This change adds new arguments to the macro for_nexthops.  They are ordered
>> > such that a pointer to the referenced object comes first, the index in the
>> > list comes next, and the list itself comes last, roughly in analogy with
>> > the list_for_each macros.
>> > 
>> > Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
>> > 
>> > ---
>> > 
>> > This patch takes care of a single file, where the macros are defined
>> > locally.  If the basic transformation looks OK, I will change the other
>> > files that either likewise define their own macros or use the macros in
>> > net/mpls/internal.h.  The potentially affected files are:
>>  ...
>> 
>> This looks fine to me.
> 
> Would it be preferable to remove the macro entirely and inline the for 
> loop header?

Could you show me an example of how this would look exactly?
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