Re: [PATCH] x86 efi: efi reverve boot service fix

[H. Peter Anvin]

On 10/16/2013 12:11 AM, Dave Young wrote:
>>
>> --- linux-2.6.orig/arch/x86/platform/efi/efi.c
>> +++ linux-2.6/arch/x86/platform/efi/efi.c
>> @@ -440,7 +440,7 @@ void __init efi_reserve_boot_services(vo
>>  		 * - Not within any part of the kernel
>>  		 * - Not the bios reserved area
>>  		*/
>> -		if ((start+size >= __pa_symbol(_text)
>> +		if ((start + size - 1 >= __pa_symbol(_text)
>>  				&& start <= __pa_symbol(_end)) ||
>>  			!e820_all_mapped(start, start+size, E820_RAM) ||
>>  			memblock_is_region_reserved(start, size)) {

It would be better to change >= to >.

	-hpa

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