Re: A simple question of a linux kernel beginner

[Richard Weinberger]

On Thu, Oct 31, 2013 at 12:31 PM, éç <bonben1989@xxxxxxxxx> wrote:
> May I can use  the ''double" as a  basic variables?
>
> When I define the "double" as a function return type in linux kernel,the error
> is "error: SSE register return with SSE disabled".
>
> How to fix it??

Don't do it. :)
In kernel land we don't want FPU stuff because it slows the mode switch down.
If you *really* need to use the FPU look how the raid6 or crypto code does.

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-- 
Thanks,
//richard
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