linux-kernel - Re: linux-next build error (PNP/IXJ)

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Message-Id: <20080722125241.8fb696b1.randy.dunlap@oracle.com>
Date:	Tue, 22 Jul 2008 12:52:41 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Bjorn Helgaas <bjorn.helgaas@...com>
Cc:	linux-next@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>
Subject: Re: linux-next build error (PNP/IXJ)

On Tue, 22 Jul 2008 11:57:13 -0600 Bjorn Helgaas wrote:

> On Tuesday 22 July 2008 11:27:39 am Randy Dunlap wrote:
> > I'm seeing several build errors in linux-next-20080722 that I haven't
> > seen previously, although I don't know what changed to cause this.
> > 
> > They are all basically the same, in ixj (drivers/telephony/ixj*), when
> > CONFIG_PNP=n, and CONFIG_PHONE_IXJ=y or =m (so the actual error message
> > varies depending on IXJ=y or =m):
> > 
> > IXJ=y:
> > ixj.c:(.text+0x329d98): undefined reference to `pnp_get_resource'
> > or IXJ=m:
> > ERROR: "pnp_get_resource" [drivers/telephony/ixj.ko] undefined!
> > 
> > 
> > Suggestions?
> 
> I'd use something like the attached.  I don't have a build environment
> where CONFIG_PNP=n (all I have is x86 and ia64), so I haven't tested
> this.
> 
> ixj: don't use PNP interfaces when CONFIG_PNP=n
>     
> This patch fixes a build problem when CONFIG_PNP=n.
>     
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@...com>
> 
> diff --git a/drivers/telephony/ixj.c b/drivers/telephony/ixj.c
> index 49cd979..51b7fb4 100644
> --- a/drivers/telephony/ixj.c
> +++ b/drivers/telephony/ixj.c
> @@ -7588,6 +7588,7 @@ static IXJ *new_ixj(unsigned long port)
>  
>  static int __init ixj_probe_isapnp(int *cnt)
>  {               
> +#ifdef CONFIG_PNP
>  	int probe = 0;
>  	int func = 0x110;
>          struct pnp_dev *dev = NULL, *old_dev = NULL;
> @@ -7664,6 +7665,9 @@ static int __init ixj_probe_isapnp(int *cnt)
>  		dev = NULL;
>  	}
>  	return probe;
> +#else
> +	return 0;
> +#endif
>  }
>                          
>  static int __init ixj_probe_isa(int *cnt)
> --

Thanks.

Acked-by: Randy Dunlap <randy.dunlap@...cle.com>


---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/
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