Re: [tip:x86/mm] x86, mm: Use a bitfield to mask nuisance get_user()warnings

[H. Peter Anvin]

On 02/12/2013 09:32 AM, Linus Torvalds wrote:
> On Tue, Feb 12, 2013 at 9:14 AM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> > No, I think what he is talking about it this bit:
>
> Ok, I agree that the bitfield code actually looks cleaner.
>
> That said, maybe gcc has an easier time using a few odd builtins and
> magic typeof's. But at least the bitfield trick looks half-way
> portable..

On the other hand, it still uses two gcc extensions: long long bitfields 
and typeof.

I'll see what kind of code we get with the macro.

	-hpa


--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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