linux-kernel - Re: [PATCH] devtmpfs: Annotate devtmpfsd as _

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Message-ID: <CACqU3MU2f17tb_5jjtT6TG0jw4P5JzR7=774QOoJ_T01wSmXHQ@mail.gmail.com>
Date:	Tue, 16 Aug 2011 13:30:06 -0400
From:	Arnaud Lacombe <lacombar@...il.com>
To:	Fabio Estevam <fabio.estevam@...escale.com>
Cc:	linux-kernel@...r.kernel.org, gregkh@...e.de
Subject: Re: [PATCH] devtmpfs: Annotate devtmpfsd as __init

Hi,

On Tue, Aug 16, 2011 at 1:22 PM, Fabio Estevam
<fabio.estevam@...escale.com> wrote:
> This fixes the following:
>
> WARNING: vmlinux.o(.text+0x1ed41c): Section mismatch in reference from the function devtmpfsd() to the (unknown reference) .init.data:(unknown)
> The function devtmpfsd() references
> the (unknown reference) __initdata (unknown).
> This is often because devtmpfsd lacks a __initdata
> annotation or the annotation of (unknown) is wrong.
>
> Signed-off-by: Fabio Estevam <fabio.estevam@...escale.com>
>
I already submitted a patch for that https://patchwork.kernel.org/patch/996132/

> ---
>  drivers/base/devtmpfs.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
> index 33e1bed..7bd4860 100644
> --- a/drivers/base/devtmpfs.c
> +++ b/drivers/base/devtmpfs.c
> @@ -386,7 +386,7 @@ static int handle(const char *name, mode_t mode, struct device *dev)
>                return handle_remove(name, dev);
>  }
>
> -static int devtmpfsd(void *p)
> +static __init int devtmpfsd(void *p)
>  {
I think this is wrong. `devtmpfsd' is the main loop of the
process/thread, you certainly don't want to whip it after boot.

 - Arnaud

>        char options[] = "mode=0755";
>        int *err = p;
> --
> 1.6.0.4
>
>
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