Re: [2.4.20] e1000 as module gives unresolved symbol _mmx_memcpy [rescued]

[Alan Cox]

> a) a kernel build for a VIA C3 doesn't use MMX, userspace programs can
> still use it

Basically true. It might be instructive to do more benching on this with
the C3 and MMX especially if the new cores add full prefetch stuff

> b) Both kernel and userspace can't use MMX any more

MMX is designed to need no OS support. SSE/SSE2 do need OS helpers but
not MMX.