linux-kernel - Re: [PATCH 3/5] clocksource/drivers/mtk_timer: add _

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Date:	Mon, 18 Apr 2016 18:44:48 +0200
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	kernel-janitors@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Matthias Brugger <matthias.bgg@...il.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	"Luis R . Rodriguez" <mcgrof@...nel.org>,
	Josh Triplett <josh@...htriplett.org>
Subject: Re: [PATCH 3/5] clocksource/drivers/mtk_timer: add __init attribute

On Mon, Apr 18, 2016 at 04:55:36PM +0200, Julia Lawall wrote:
> Add __init attribute on a function that is only called from other __init
> functions and that is not inlined, at least with gcc version 4.8.4 on an
> x86 machine with allyesconfig.  Currently, the function is put in the
> .text.unlikely segment.  Declaring it as __init will cause it to be put in
> the .init.text and to disappear after initialization.
> 
> The result of objdump -x on the function before the change is as follows:
> 
> 0000000000000000 l     F .text.unlikely 000000000000006f mtk_timer_setup.isra.4
> 
> And after the change it is as follows:
> 
> 0000000000000000 l     F .init.text	000000000000006a mtk_timer_setup.isra.4
> 
> Done with the help of Coccinelle.  The semantic patch checks for local
> static non-init functions that are called from an __init function and are
> not called from any other function.
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
> ---

Applied for 4.7.

Thanks !

  -- Daniel