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

[Linus Torvalds]

On Wed, May 23, 2012 at 9:47 AM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
>
> Any reason we can't just tell people to use BIT() for a native "unsigned
> long" type (32/64 bits) and BIT_64() if they really want a 64-bit result?

Well, that's what we're doing now. And it seems to have resulted in
repeated bugs for architectures where most of the developers run on
64-bit machines, but the same code is actually supposed to work on
32-bit too (ie x86).

                   Linus
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