linux-kernel - Re: [PATCH] fix minor error about efi memory

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Message-Id: <20061022214508.6c4f30c6.akpm@osdl.org>
Date:	Sun, 22 Oct 2006 21:45:08 -0700
From:	Andrew Morton <akpm@...l.org>
To:	"bibo,mao" <bibo.mao@...el.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fix minor error about efi memory_present

On Mon, 23 Oct 2006 11:42:33 +0800
"bibo,mao" <bibo.mao@...el.com> wrote:

> Hi, 
>    Function efi_memory_present_wrapper parameter start/end is physical address,
> but function memory_present parameter is PFN, this patch converts physical
> address to PFN.
> 
>   Signed-off-by: bibo, mao <bibo.mao@...el.com>
> 
> thanks
> bibo,mao
> 
> diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
> index 519e63c..141041d 100644
> --- a/arch/i386/kernel/setup.c
> +++ b/arch/i386/kernel/setup.c
> @@ -846,7 +846,7 @@ efi_find_max_pfn(unsigned long start, un
>  static int __init
>  efi_memory_present_wrapper(unsigned long start, unsigned long end, void *arg)
>  {
> -	memory_present(0, start, end);
> +	memory_present(0, PFN_UP(start), PFN_DOWN(end));
>  	return 0;
>  }
>  

It doesn't _seem_ like a "minor error".  How come people's machines haven't
been crashing all over the place?

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