Re: [Xen-devel] [PATCH 0/6] xen/arm: Move in/out code to/from init section

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 02.02.15 at 11:58, <Ian.Campbell@xxxxxxxxxx> wrote:
> On Fri, 2015-01-30 at 11:33 +0000, Julien Grall wrote:
>> On 30/01/15 11:30, Ian Campbell wrote:
>> > On Thu, 2015-01-29 at 18:32 +0000, Julien Grall wrote:
>> >> Hello,
>> >>
>> >> Ping? Any more review for this version of this series?
>> > 
>> > I was awaiting a version with the declarations in the right places as
>> > pointed out by Andy (including his point about definition vs. prototype
>> > I'm afraid, which is the style we use).
>> 
>> I'm not convince about your last point. We have many places (if not all
>> on ARM) where __init is used in the header.
> 
> Those are mistakes, it seems.
> 
>> Some of them was even added by you ;). So I would prefer if we keep
>> them, it's more readable. FWIW Linux does it too.
> 
> I personally don't particularly care where these things go, but other
> hypervisor maintainers seem to and we should aim for the code base to be
> consistent where possible.
> 
> If we want to change this coding style then we should do that directly
> and explicitly, not through the backdoor by just ignoring the policy.

And I think we should strive to keep pointless redundancy down:
There's no point in repeating attributes - either they belong on the
declaration (when producer and consumers care), or they belong
on the definition (when only the producer cares). Repeating them
on the definition when the declaration already has them only results
in needless churn when such an attribute later gets changed/
removed, and having producer-relevant attributes on declarations
means needless extra work by the compiler (however little that may
be - it adds up).

Jan


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