linux-kernel - Re: -tip: origin tree build failure

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Date:	Sat, 26 Dec 2009 13:36:14 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org, Len Brown <lenb@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	Myron Stowe <myron.stowe@...com>
Subject: Re: -tip: origin tree build failure

On Thu, Dec 17, 2009 at 08:50, Ingo Molnar <mingo@...e.hu> wrote:
> Today's -tip failed to build because commit
> 9e368fa011d4e0aa050db348d69514900520e40b ("ipmi: add PNP discovery (ACPI
> namespace via PNPACPI)") from today's upstream kernel causes the following
> build failure on x86, for CONFIG_ACPI=n && CONFIG_IPMI_SI=y:
>
>  drivers/char/ipmi/ipmi_si_intf.c:3208: error: 'ipmi_pnp_driver' undeclared (first use in this function)
>  drivers/char/ipmi/ipmi_si_intf.c:3208: error: (Each undeclared identifier is reported only once
>  drivers/char/ipmi/ipmi_si_intf.c:3208: error: for each function it appears in.)
>  drivers/char/ipmi/ipmi_si_intf.c:3334: error: 'ipmi_pnp_driver' undeclared (first use in this function)
>
> The reason is that the ipmi_pnp_driver depends on ACPI facilities and is only
> made available under ACPI - while the registration and unregistration is made
> dependent on CONFIG_PNP:
>
>  #ifdef CONFIG_PNP
>        pnp_register_driver(&ipmi_pnp_driver);
>  #endif
>
> The solution is to only register this driver under ACPI. (Also, the CONFIG_PNP
> dependency is not needed because pnp_register_driver() is stubbed out in the
> !CONFIG_PNP case.)
>
> I've applied the patch below to tip:out-of-tree for now.

Any chance we can see this fixed in mainline soon, so allmodconfig builds again
on non-ACPI platforms? Thx!

> Thanks,
>
>        Ingo
>
> Signed-off-by: Ingo Molnar <mingo@...e.hu>
>
> diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
> index 679cd08..176f175 100644
> --- a/drivers/char/ipmi/ipmi_si_intf.c
> +++ b/drivers/char/ipmi/ipmi_si_intf.c
> @@ -3204,7 +3204,7 @@ static __devinit int init_ipmi_si(void)
>  #ifdef CONFIG_ACPI
>        spmi_find_bmc();
>  #endif
> -#ifdef CONFIG_PNP
> +#ifdef CONFIG_ACPI
>        pnp_register_driver(&ipmi_pnp_driver);
>  #endif
>
> @@ -3330,7 +3330,7 @@ static __exit void cleanup_ipmi_si(void)
>  #ifdef CONFIG_PCI
>        pci_unregister_driver(&ipmi_pci_driver);
>  #endif
> -#ifdef CONFIG_PNP
> +#ifdef CONFIG_ACPI
>        pnp_unregister_driver(&ipmi_pnp_driver);
>  #endif
>

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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