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

From: Linus Torvalds
Date: Mon Feb 11 2013 - 22:33:39 EST

On Mon, Feb 11, 2013 at 5:37 PM, tip-bot for H. Peter Anvin
<hpa@xxxxxxxxx> wrote:
> However, we can declare a bitfield using sizeof(), which is legal
> because sizeof() is a constant expression. This quiets the warning,
> although the code generated isn't 100% identical from the baseline
> before 96477b4 x86-32: Add support for 64bit get_user():

Christ. This is so ugly that it's almost a work of art.

Has anybody run this past any gcc developers? And if so, did they run
away screaming?

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