Re: [tip:x86/urgent] x86, fpu: correct the asm constraints for fxsave, unbreak mxcsr.daz

[Linus Torvalds]

On Fri, Jul 26, 2013 at 1:19 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
>
> The bug is obvious; the fix at the very least *should* be obvious; the
> main source of risk would appear that it might trigger bugs in very old
> versions of gcc.

I used to be worried about "+m", but we're using it a lot these days,
and don't support the (really old) versions of gcc that used to have
trouble with in-out constraints. So the fix looks obvious and safe, no
worries from me.

          Linus
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