linux-kernel - Re: [PATCH 3/3] arm: arch_timer: mark functions as __always

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Date:   Wed, 5 Jun 2019 13:24:34 +0100
From:   Marc Zyngier <marc.zyngier@....com>
To:     Anders Roxell <anders.roxell@...aro.org>, mark.rutland@....com
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        tglx@...utronix.de, mingo@...hat.com
Subject: Re: [PATCH 3/3] arm: arch_timer: mark functions as __always_inline

On 03/06/2019 10:15, Anders Roxell wrote:
> If CONFIG_FUNCTION_GRAPH_TRACER is enabled function
> arch_counter_get_cntvct() is marked as notrace. However, function
> __arch_counter_get_cntvct is marked as inline. If
> CONFIG_OPTIMIZE_INLINING is set that will make the two functions
> tracable which they shouldn't.
> 
> Rework so that functions __arch_counter_get_* are marked with
> __always_inline so they will be inlined even if CONFIG_OPTIMIZE_INLINING
> is turned on.
> 
> Originally found on arm64, but doing the same thing on arm for
> consistency.
> 
> Fixes: 0ea415390cd3 ("clocksource/arm_arch_timer: Use arch_timer_read_counter to access stable counters")
> Signed-off-by: Anders Roxell <anders.roxell@...aro.org>

Acked-by: Marc Zyngier <marc.zyngier@....com>

	M.
-- 
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