From: Josip Rodin <joy@xxxxxxxxxxxxxx>
Date: Fri, 2 May 2014 00:42:25 +0200
> On Wed, Apr 30, 2014 at 05:55:48PM -0400, David Miller wrote:
>> --- a/arch/sparc/include/asm/pgtable_64.h
>> +++ b/arch/sparc/include/asm/pgtable_64.h
>> @@ -916,7 +916,7 @@ static inline bool kern_addr_valid(unsigned long addr)
>> {
>> unsigned long paddr = __pa(addr);
>>
>> - if ((paddr >> 41UL) != 0UL)
>> + if ((paddr >> MAX_PHYS_ADDRESS_BITS) != 0UL)
>> return false;
>> return test_bit(paddr >> 22, sparc64_valid_addr_bitmap);
>
> BTW, maybe this other magic constant - 22 - could be replaced as well?
> Is that ILOG2_4MB?
Yep, it is.
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