linux-kernel - Re: [PATCH]: Not PCI_PROBE

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Message-ID: <AANLkTindvfxRfgRbLprzX5b2u-4P-XZmycV=ai9ez6H1@mail.gmail.com>
Date:	Wed, 9 Feb 2011 08:43:46 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	pavel@...linux.ru
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH]: Not PCI_PROBE_MMCONF by default

On Wed, Feb 9, 2011 at 7:13 AM, Pavel Vasilyev <pavel@...linux.ru> wrote:
> Hi All!
>
> Do not set PCI_PROBE_MMCONF flag by default, and enable
> only if configured with  CONFIG_PCI_MMCONFIG
>
> Signed-off-by: Pavel Vasilyev <pavel@...linux.ru>
> ---
>  arch/x86/pci/common.c |    6 ++++--
>  1 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
> index 5fe7502..625b477 100644
> --- a/arch/x86/pci/common.c
> +++ b/arch/x86/pci/common.c
> @@ -17,8 +17,7 @@
>  #include <asm/smp.h>
>  #include <asm/pci_x86.h>
>
> -unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
> -                               PCI_PROBE_MMCONF;
> +unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2;
>
>  unsigned int pci_early_dump_regs;
>  static int pci_bf_sort;
> @@ -535,6 +534,9 @@ char * __devinit  pcibios_setup(char *str)
>        }
>  #endif
>  #ifdef CONFIG_PCI_MMCONFIG
> +
> +       pci_probe |= PCI_PROBE_MMCONF;
> +
>        else if (!strcmp(str, "nommconf")) {
>                pci_probe &= ~PCI_PROBE_MMCONF;
>                return NULL;
>

did you try to do the compile test with CONFIG_PCI_MMCONFIG?

Yinghai
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