linux-kernel - Re: [PATCH] static_key: WARN on usage before jump_label

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Date:	Mon, 7 Oct 2013 11:51:52 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Hannes Frederic Sowa <hannes@...essinduktion.org>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Jason Baron <jbaron@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Eric Dumazet <edumazet@...gle.com>,
	"andi @ firstfloor. org David S. Miller" <davem@...emloft.net>,
	x86@...nel.org
Subject: Re: [PATCH] static_key: WARN on usage before jump_label_init was
 called

On Sun, 6 Oct 2013 20:29:19 +0200
Hannes Frederic Sowa <hannes@...essinduktion.org> wrote:


> diff --git a/lib/jump_label_initialized.c b/lib/jump_label_initialized.c
> new file mode 100644
> index 0000000..a668a40
> --- /dev/null
> +++ b/lib/jump_label_initialized.c
> @@ -0,0 +1,6 @@
> +#include <linux/types.h>
> +#include <linux/cache.h>
> +
> +bool static_key_initialized __read_mostly = false;
> +EXPORT_SYMBOL_GPL(static_key_initialized);
> +

So far, the only thing I don't like about this patch is the creation of
this file for the sole purpose of adding this variable.

Perhaps it can just be added to init/main.c?

-- Steve
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