linux-kernel - Re: [PATCH] bus: imx-weim: remove incorrect _

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Date:   Wed, 4 Sep 2019 09:03:13 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Sven Van Asbroeck <thesven73@...il.com>,
        Rob Herring <robh@...nel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Nathan Chancellor <natechancellor@...il.com>,
        Ilie Halip <ilie.halip@...il.com>
Subject: Re: [PATCH] bus: imx-weim: remove incorrect __init annotations

On Wed, Sep 4, 2019 at 9:00 AM Arnd Bergmann <arnd@...db.de> wrote:
>
> The probe function is no longer __init, so anything it calls now
> must also be available at runtime, as Kbuild points out when building
> with clang-9:

Thanks for the patch, this has already been addressed in:
https://patchwork.kernel.org/patch/11114307/
https://github.com/ClangBuiltLinux/linux/issues/645

>
> WARNING: vmlinux.o(.text+0x6e7040): Section mismatch in reference from the function weim_probe() to the function .init.text:imx_weim_gpr_setup()
> The function weim_probe() references
> the function __init imx_weim_gpr_setup().
> This is often because weim_probe lacks a __init
> annotation or the annotation of imx_weim_gpr_setup is wrong.
>
> WARNING: vmlinux.o(.text+0x6e70f0): Section mismatch in reference from the function weim_probe() to the function .init.text:weim_timing_setup()
> The function weim_probe() references
> the function __init weim_timing_setup().
> This is often because weim_probe lacks a __init
> annotation or the annotation of weim_timing_setup is wrong.
>
> Remove the remaining __init markings that are now wrong.
>
> Fixes: 4a92f07816ba ("bus: imx-weim: use module_platform_driver()")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
> I applied this on top of the patch taht introduced the build error
>
>  drivers/bus/imx-weim.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/bus/imx-weim.c b/drivers/bus/imx-weim.c
> index 79af0c27f5a3..28bb65a5613f 100644
> --- a/drivers/bus/imx-weim.c
> +++ b/drivers/bus/imx-weim.c
> @@ -76,7 +76,7 @@ static const struct of_device_id weim_id_table[] = {
>  };
>  MODULE_DEVICE_TABLE(of, weim_id_table);
>
> -static int __init imx_weim_gpr_setup(struct platform_device *pdev)
> +static int imx_weim_gpr_setup(struct platform_device *pdev)
>  {
>         struct device_node *np = pdev->dev.of_node;
>         struct property *prop;
> @@ -126,10 +126,10 @@ static int __init imx_weim_gpr_setup(struct platform_device *pdev)
>  }
>
>  /* Parse and set the timing for this device. */
> -static int __init weim_timing_setup(struct device *dev,
> -                                   struct device_node *np, void __iomem *base,
> -                                   const struct imx_weim_devtype *devtype,
> -                                   struct cs_timing_state *ts)
> +static int weim_timing_setup(struct device *dev,
> +                            struct device_node *np, void __iomem *base,
> +                            const struct imx_weim_devtype *devtype,
> +                            struct cs_timing_state *ts)
>  {
>         u32 cs_idx, value[MAX_CS_REGS_COUNT];
>         int i, ret;
> --
> 2.20.0
>
> --
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-- 
Thanks,
~Nick Desaulniers