linux-kernel - Re: [PATCH] clk: samsung: mark s3c...._clk_sleep_init() as _

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Date:   Wed, 25 Jan 2017 10:30:30 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Martin Kaiser <martin@...ser.cx>
Cc:     Stephen Boyd <sboyd@...eaurora.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Tomasz Figa <tomasz.figa@...il.com>,
        Kukjin Kim <kgene@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk: samsung: mark s3c...._clk_sleep_init() as __init

On Tue, Jan 24, 2017 at 11:33 PM, Martin Kaiser <martin@...ser.cx> wrote:
> These functions are called only by other __init functions.
> Compiling for s3c2410 with CONFIG_DEBUG_SECTION_MISMATCH=y,
> I get warnings like
>
> WARNING: vmlinux.o(.text+0x198350):
> Section mismatch in reference from the function s3c2410_clk_sleep_init()
> to the (unknown reference) .init.data:(unknown)
>

The code looks okay but the description is not accurate. First, indeed
the functions are referenced only from other __init. However the real
problem is - pointed by section mismatch - that non-init functions are
referencing __initdata. Exactly this is mentioned in the error above.
Please, refactor the commit message to reflect the real problem.

Best regards,
Krzysztof

> Marking the s3c...._clk_sleep() functions as __init fixes this.
>
> Signed-off-by: Martin Kaiser <martin@...ser.cx>
> ---
>  drivers/clk/samsung/clk-s3c2410.c | 4 ++--
>  drivers/clk/samsung/clk-s3c2412.c | 4 ++--
>  drivers/clk/samsung/clk-s3c2443.c | 4 ++--
>  drivers/clk/samsung/clk-s3c64xx.c | 4 ++--
>  4 files changed, 8 insertions(+), 8 deletions(-)
>