linux-kernel - Re: static key arrays?

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Message-ID: <87zj0taui1.fsf@rasmusvillemoes.dk>
Date:	Fri, 11 Sep 2015 16:41:26 +0200
From:	Rasmus Villemoes <linux@...musvillemoes.dk>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Jason Baron <jbaron@...mai.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: static key arrays?

On Fri, Sep 11 2015, Johannes Berg <johannes@...solutions.net> wrote:

> On Fri, 2015-09-11 at 13:10 +0200, Peter Zijlstra wrote:
>> 
>> struct static_key_false array[n] = { STATIC_KEY_FALSE_INIT, };
>> 
>> or something like that.
>
> Yeah, ok, this would be sufficient for me - no need to mix different
> types. I don't think that initializer works, but I guess we can just
> duplicate it in the code 

That's inconvenient for large arrays. I think the 'or something' would
be the range initialization supported by gcc (and I think also clang):

struct static_key_false array[N] = { [0 ... N-1] = STATIC_KEY_FALSE_INIT };

Rasmus
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