From: Matthias Brugger <matthias.bgg@gmail.com>
To: Julia Lawall <Julia.Lawall@lip6.fr>,
Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: kernel-janitors@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org,
"Luis R . Rodriguez" <mcgrof@kernel.org>,
Josh Triplett <josh@joshtriplett.org>
Subject: Re: [PATCH 3/5] clocksource/drivers/mtk_timer: add __init attribute
Date: Mon, 18 Apr 2016 17:51:41 +0200 [thread overview]
Message-ID: <5715028D.4020300@gmail.com> (raw)
In-Reply-To: <1460991338-9845-4-git-send-email-Julia.Lawall@lip6.fr>
On 18/04/16 16:55, 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@lip6.fr>
>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
> ---
> drivers/clocksource/mtk_timer.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clocksource/mtk_timer.c b/drivers/clocksource/mtk_timer.c
> index d67bc35..7e583f8 100644
> --- a/drivers/clocksource/mtk_timer.c
> +++ b/drivers/clocksource/mtk_timer.c
> @@ -152,7 +152,7 @@ static irqreturn_t mtk_timer_interrupt(int irq, void *dev_id)
> }
>
> static void
> -mtk_timer_setup(struct mtk_clock_event_device *evt, u8 timer, u8 option)
> +__init mtk_timer_setup(struct mtk_clock_event_device *evt, u8 timer, u8 option)
> {
> writel(TIMER_CTRL_CLEAR | TIMER_CTRL_DISABLE,
> evt->gpt_base + TIMER_CTRL_REG(timer));
>
next prev parent reply other threads:[~2016-04-18 15:51 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-18 14:55 [PATCH 0/5] add __init attribute Julia Lawall
2016-04-18 14:55 ` [PATCH 1/5] clk: qoriq: " Julia Lawall
2016-04-18 18:53 ` Stephen Boyd
2016-04-18 14:55 ` [PATCH 2/5] arcnet: com90xx: " Julia Lawall
2016-04-19 6:56 ` Michael Grzeschik
2016-04-20 0:18 ` David Miller
2016-04-18 14:55 ` [PATCH 3/5] clocksource/drivers/mtk_timer: " Julia Lawall
2016-04-18 15:51 ` Matthias Brugger [this message]
2016-04-18 16:44 ` Daniel Lezcano
2016-04-18 14:55 ` [PATCH 4/5] TTY: " Julia Lawall
2016-04-18 14:55 ` [PATCH 5/5] cmd640: " Julia Lawall
2016-07-26 22:26 ` David Miller
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