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Message-ID: <86802c440809242348g10939ca2p79b5bd1ce7e5fac0@mail.gmail.com>
Date: Wed, 24 Sep 2008 23:48:31 -0700
From: "Yinghai Lu" <yinghai@kernel.org>
To: "Suresh Siddha" <suresh.b.siddha@intel.com>,
       "Jesse Barnes" <jbarnes@virtuousgeek.org>,
       "Ingo Molnar" <mingo@elte.hu>, "Thomas Gleixner" <tglx@linutronix.de>,
       "H. Peter Anvin" <hpa@zytor.com>,
       "Andrew Morton" <akpm@linux-foundation.org>
Subject: Re: [PATCH] x86/pci: fix dmar_tbl early_ioremap leak
Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
       "Yinghai Lu" <yhlu.kernel@gmail.com>
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On Wed, Sep 24, 2008 at 11:27 PM, Yinghai Lu <yhlu.kernel@gmail.com> wrote:
> use early_acpi_os_unmap_memory
>
> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
>
> ---
>  drivers/pci/dmar.c |    9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
>
> Index: linux-2.6/drivers/pci/dmar.c
> ===================================================================
> --- linux-2.6.orig/drivers/pci/dmar.c
> +++ linux-2.6/drivers/pci/dmar.c
> @@ -42,6 +42,7 @@
>  LIST_HEAD(dmar_drhd_units);
>
>  static struct acpi_table_header * __initdata dmar_tbl;
> +static acpi_size __initdata dmar_tbl_size;
>
>  static void __init dmar_register_drhd_unit(struct dmar_drhd_unit *drhd)
>  {
> @@ -296,9 +297,13 @@ static int __init dmar_table_detect(void
>  {
>        acpi_status status = AE_OK;
>
> +       if (dmar_tbl)
> +               early_acpi_os_unmap_memory(dmar_tbl, dmar_tbl_size);
> +

need more work..

YH