Re: [tip:x86/mce] x86/bitops: Move BIT_64() for a wider use

[H. Peter Anvin]

On 05/23/2012 09:10 AM, Peter Zijlstra wrote:
> On Wed, 2012-05-23 at 09:07 -0700, tip-bot for Borislav Petkov wrote:
>> +#define BIT_64(n)                      (U64_C(1) << (n))
> 
> Because writing 1ULL << n is too much work? 
> 

Because writing 1ULL << n is broken in anything that needs to be used in
assembly, for example.

	-hpa


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