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

[Linus Torvalds]

On Wed, May 23, 2012 at 10:11 AM, Borislav Petkov <bp@xxxxxxxxx> wrote:
>
> And, in addition, hpa's example won't work too:
>
>        u64 msr = ~BIT(1);

Yes, that's a good example of something that can be problematic, and
is fundamentally different on 32-bit and 64-bit.

So maybe BIT() unconditionally being long, and BIT_64() being u64
simply is the right model.

                    Linus
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