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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/