linux-kernel - Re: [PATCH] ipmi: add of_device_id in MODULE_DEVICE

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Date:	Mon, 24 Aug 2015 19:48:44 -0500
From:	Corey Minyard <minyard@....org>
To:	Brijesh Singh <brijeshkumar.singh@....com>,
	openipmi-developer@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ipmi: add of_device_id in MODULE_DEVICE_TABLE

Well, I should have compile tested first.  On x86_64:


  CC [M]  drivers/char/ipmi/ipmi_si_intf.o
In file included from ../drivers/char/ipmi/ipmi_si_intf.c:42:0:
../drivers/char/ipmi/ipmi_si_intf.c:2804:25: error: ‘ipmi_match’
undeclared here (not in a function)
 MODULE_DEVICE_TABLE(of, ipmi_match);
                         ^
../include/linux/module.h:223:21: note: in definition of macro
‘MODULE_DEVICE_TABLE’
 extern const typeof(name) __mod_##type##__##name##_device_table  \
                     ^
../include/linux/module.h:223:27: error:
‘__mod_of__ipmi_match_device_table’ aliased to undefined symbol ‘ipmi_match’
 extern const typeof(name) __mod_##type##__##name##_device_table  \
                           ^
../drivers/char/ipmi/ipmi_si_intf.c:2804:1: note: in expansion of macro
‘MODULE_DEVICE_TABLE’
 MODULE_DEVICE_TABLE(of, ipmi_match);


This has to compile on all arches.  I'm not sure what is wrong, but I've
removed the patch.

-corey

On 08/24/2015 09:15 AM, Brijesh Singh wrote:
> Fix autoloading ipmi modules when using device tree.
>
> Signed-off-by: Brijesh Singh <brijeshkumar.singh@....com>
> ---
>  drivers/char/ipmi/ipmi_si_intf.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
> index 8a45e92..cddc7b0 100644
> --- a/drivers/char/ipmi/ipmi_si_intf.c
> +++ b/drivers/char/ipmi/ipmi_si_intf.c
> @@ -2785,6 +2785,7 @@ static struct platform_driver ipmi_driver = {
>  	.probe		= ipmi_probe,
>  	.remove		= ipmi_remove,
>  };
> +MODULE_DEVICE_TABLE(of, ipmi_match);
>  
>  #ifdef CONFIG_PARISC
>  static int ipmi_parisc_probe(struct parisc_device *dev)

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