linux-kernel - Re: [PATCH] arc: kernel: export symbol for pm_power

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Date:	Mon, 28 Oct 2013 12:09:45 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	"vgupta@...opsys.com" <vgupta@...opsys.com>
CC:	Arnd Bergmann <arnd@...db.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arc: kernel: export symbol for pm_power_off in reset.c



After this patch, and with limitations below, arc finishes allmodconfig.

 - with EXTRA_CFLAGS=-mmedium-calls.

 - disable CONFIG_CC_OPTIMIZE_FOR_SIZE.

 - by pass 5-7 gcc issues (4-5 may duplicate).

 - by pass 1 binutils issue (when disable CONFIG_CC_OPTIMIZE_FOR_SIZE).


Next (within 2013-10-31) I will/should:

 - shrink cross-compilers information, at least.

 - finish the patch for "portable assembler code - newline"


Left:

 - it also content sevaval warnings (even not use "EXTRA_CFLAGS=-W").

 - for next-20130927 tree, arc can not pass defconfig, either.

 - not let it run under kvm (I don't know whether we support kvm).


Thanks.

On 10/28/2013 11:49 AM, Chen Gang wrote:
> Need export symbol for it, or can not pass compiling, the related error
> with allmodconfig: 
> 
>     MODPOST 2994 modules
>   ERROR: "pm_power_off" [drivers/mfd/retu-mfd.ko] undefined!
>   ERROR: "pm_power_off" [drivers/char/ipmi/ipmi_poweroff.ko] undefined!
> 
> 
> Signed-off-by: Chen Gang <gang.chen@...anux.com>
> ---
>  arch/arc/kernel/reset.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c
> index e227a2b..2768fa1 100644
> --- a/arch/arc/kernel/reset.c
> +++ b/arch/arc/kernel/reset.c
> @@ -31,3 +31,4 @@ void machine_power_off(void)
>  }
>  
>  void (*pm_power_off) (void) = NULL;
> +EXPORT_SYMBOL(pm_power_off);
> 


-- 
Chen Gang
--
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