[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20150604054238.GA6770@gmail.com>
Date: Thu, 4 Jun 2015 07:42:38 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Wei Yang <weiyang@...ux.vnet.ibm.com>
Cc: yinghai@...nel.org, x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86, setup: code clean of e820_reserve_setup_data()
* Wei Yang <weiyang@...ux.vnet.ibm.com> wrote:
> pa_data and found are highly related, so there is no need to set a found
> flag.
>
> This patch removes the found and just return when pa_data is NULL.
>
> Signed-off-by: Wei Yang <weiyang@...ux.vnet.ibm.com>
> ---
> arch/x86/kernel/setup.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
> index 0a2421c..b95e653 100644
> --- a/arch/x86/kernel/setup.c
> +++ b/arch/x86/kernel/setup.c
> @@ -461,19 +461,18 @@ static void __init e820_reserve_setup_data(void)
> {
> struct setup_data *data;
> u64 pa_data;
> - int found = 0;
>
> pa_data = boot_params.hdr.setup_data;
> + if (!pa_data)
> + return;
> +
> while (pa_data) {
> data = early_memremap(pa_data, sizeof(*data));
> e820_update_range(pa_data, sizeof(*data)+data->len,
> E820_RAM, E820_RESERVED_KERN);
> - found = 1;
> pa_data = data->next;
> early_iounmap(data, sizeof(*data));
> }
> - if (!found)
> - return;
>
> sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
> memcpy(&e820_saved, &e820, sizeof(struct e820map));
This patch does not apply to Linus's latest tree.
Thanks,
Ingo
--
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/
Powered by blists - more mailing lists