linux-kernel - Re: [PATCH] [7/58] x86_64: various cleanups in NUMA scan node

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Date:	Thu, 19 Jul 2007 10:15:55 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Andi Kleen" <ak@...e.de>
Cc:	rientjes@...gle.com, patches@...-64.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [7/58] x86_64: various cleanups in NUMA scan node

On 7/19/07, Andi Kleen <ak@...e.de> wrote:
>
> From: David Rientjes <rientjes@...gle.com>
> In acpi_scan_nodes(), we immediately return -1 if acpi_numa <= 0, meaning
> we haven't detected any underlying ACPI topology or we have explicitly
> disabled its use from the command-line with numa=noacpi.
>
> acpi_table_print_srat_entry() and acpi_table_parse_srat() are only
> referenced within drivers/acpi/numa.c, so we can mark them as static and
> remove their prototypes from the header file.
>
> Likewise, pxm_to_node_map[] and node_to_pxm_map[] are only used within
> drivers/acpi/numa.c, so we mark them as static and remove their externs
> from the header file.
>
> The automatic 'result' variable is unused in acpi_numa_init(), so it's
> removed.
>
> Signed-off-by: David Rientjes <rientjes@...gle.com>
> Signed-off-by: Andi Kleen <ak@...e.de>
>
> ---
>  arch/x86_64/mm/srat.c |    6 +++---
>  drivers/acpi/numa.c   |   20 ++++++++++----------
>  include/linux/acpi.h  |    2 --
>  3 files changed, 13 insertions(+), 15 deletions(-)
>
> Index: linux/arch/x86_64/mm/srat.c
> ===================================================================
> --- linux.orig/arch/x86_64/mm/srat.c
> +++ linux/arch/x86_64/mm/srat.c
>  /* maps to convert between proximity domain and logical node ID */
> -static int pxm_to_node_map[MAX_PXM_DOMAINS]
> +static int __cpuinitdata pxm_to_node_map[MAX_PXM_DOMAINS]
>                                 = { [0 ... MAX_PXM_DOMAINS - 1] = NID_INVAL };
> -static int node_to_pxm_map[MAX_NUMNODES]
> +static int __cpuinitdata node_to_pxm_map[MAX_NUMNODES]
>                                 = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
>
do we need to put __initdata just before =?

YH
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